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| MCP9509/10 Resistor-Programmable Temperature Switches Features * * * * Resistor-Programmable Temperature Switch Wide Operating Voltage Range: 2.7V to 5.5V Low Supply Current: 30 A (typical) Temperature Switch Accuracy: - 0.5C (typical) at +25C, +45C - 1C (typical) 0C to +70C - 3.5C (maximum) 0C to +125C - 4.5C (maximum) -20C to +125C - 2C (typical) -40C to +125C * Sensor Options available: - Switch for rising temperature: Cold to Hot (H) - Switch for falling temperature: Hot to Cold (C) * Output Configurations: - Open-Drain: - External Pull-up Resistor: MCP9509 - Internal Pull-up Resistor: MCP9510 - Active-Low, Push-Pull: MCP9510 - Active-High, Push-Pull: MCP9510 * User Selectable Hysteresis: 2C or 10C (typical) * Space-Saving SOT-23-5, SOT-23-6 Packages Description Microchip Technology's MCP9509/10 devices are programmable logic output temperature switches. The temperature switch threshold can be programmed with a single external resistor, which provides high design flexibility and simplicity. In addition, this family of devices provide user programmable features such as 2C and 10C (typical) switch hysteresis and output structure configuration. The MCP9509 provides an open drain output, whereas the MCP9510 is offered in three different user selectable output configurations: Active-low/Active-high push pull and Active-Low Open-Drain output with an internal 100 k pull-up resistor. The MCP9509/10 operate from 2.7V to 5.5V. This family is capable of triggering for temperatures -40C to +125C with high accuracy. Package Types MCP9509 SOT-23-5 SET 1 GND 2 OUT 3 5 VDD 4 HYST MCP9510 SOT-23-6 SET 1 GND 2 OUT / OUT 3 6 VDD 5 OUTSET 4 HYST Applications * * * * * * Power Supply Thermal Shutdown Temperature Alarm Thermostat Control Fan Control Base-Stations Automotive Typical Performance 20% 16% Occurrences 12% 8% 4% 0% -3.0 -2.0 -1.0 2.0 0.0 1.0 Temperature Accuracy (C) 3.0 TA = +45C VDD = 4.1V 9087 Units 6 Lots (c) 2008 Microchip Technology Inc. DS22114A-page 1 MCP9509/10 NOTES: DS22114A-page 2 (c) 2008 Microchip Technology Inc. MCP9509/10 1.0 ELECTRICAL CHARACTERISTICS Notice: Stresses above those listed under "Maximum ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. Absolute Maximum Ratings VDD.................................................................................. 6.0V Voltage at all Input/Output pins ............... GND - 0.3V to 6.0V Input/Output Current .....................................................20 mA Storage temperature .....................................-65C to +150C Ambient temp. with power applied ................-40C to +125C Junction Temperature (TJ) .......................................... +150C ESD protection on all pins (HBM:MM) ................. (4 kV/400V) Latch-Up Current at each pin (25C) ....................... 200 mA DC CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40C to +125C, and GND = Ground. Parameters Sensor Accuracy TA = +25C, +45C 0C TA +125C -20C TA +125C -40C TA +125C Power Supply Operating Voltage Operating Current (MCP9509) Operating Current (MCP9510) Hysteresis Trip Point Hysteresis Hysteresis Select: Input (HYST) Thresholds Hysteresis Input (HYST) Leakage THYST VIH VIL ILeak -- -- VDD - 0.4 Sym TACY Min -- -3.5 -4.5 -- Typ 0.5 1 1 2 -- 30 50 100 +2 +10 -- -- 1 Max -- +3.5 +4.5 -- 5.5 50 80 165 -- -- -- 0.4 -- Unit C C C C V A A A C C V V A Note 1 Conditions VDD IDD IDD 2.7 -- -- -- OUTSET = GND or VDD OUTSET = Unconnected HYST = GND HYST = VDD -- -- MCP9510 Output Control Input (OUTSET Input) OUTSET Input Voltage Threshold and Output Configuration Push-Pull, Active Low Open-Drain with ROUT, Active Low Push-Pull, Active High OUTSET Input Leakage and Output Configuration Push-Pull, Active Low Open-Drain, Active Low Push-Pull, Active High OUTSET Input Impedance Note 1: ZOUTSET ILeak -- -- -- -- -- 10 0 7 -10 500 -- -- -- -- -- A A A A k GND VOSET 0.2VDD Unconnected (i.e. open) 0.4VDD VOSET 0.7VDD 0.85 VOSET VDD VOSET GND 0.45VDD 0.85VDD -- -- -- 0.2VDD 0.7VDD VDD V V V or OUTSET Unconnected This specification is tested at mid supply of 4.1V for optimum operation across the supply voltage range of 2.7V to 5.5V. (c) 2008 Microchip Technology Inc. DS22114A-page 3 MCP9509/10 DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40C to +125C, and GND = Ground. Parameters Outputs (OUT, OUT) Output Voltage High, MCP9510 Output Voltage Low, MCP9510 Output Voltage Low, MCP9509 Internal Output Pull-up (MCP9510) Open-Drain Output Leakage Power Supply Rejection Thermal Response SOT23-5, SOT23-6 tRES -- 1.7 -- s Time to 63% (88C). +25C (Air) to +125C (oil bath) VOH VOL VOL ROUT ILeak PSR VDD - 0.55 Sym Min Typ -- -- -- 100 1 0.05 Max VDD Unit V V V k A C/V Conditions IOUT = 5 mA OUTSET = VDD or GND IOUT = 5 mA OUTSET Unconnected MCP9509/10 GND GND 60 -- -- 0.3 0.3 140 -- -- Note 1: This specification is tested at mid supply of 4.1V for optimum operation across the supply voltage range of 2.7V to 5.5V. TEMPERATURE CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40C to +125C, and GND = Ground. Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, 5L-SOT23 Thermal Resistance, 6L-SOT23 Note 1: JA JA -- -- 220.7 190.5 -- -- C/ C/ TA TA TA -40 -40 -65 -- -- -- +125 +125 +150 C C C (Note 1) Sym Min Typ Max Units Conditions Operation in this range must not cause TJ to exceed Maximum Junction Temperature (+150C). DS22114A-page 4 (c) 2008 Microchip Technology Inc. MCP9509/10 2.0 Note: TYPICAL PERFORMANCE CURVES The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. Note: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40C to +125C, GND = Ground, RPULL-UP = 10 k (MCP9509 only) and 0.1 f bypass capacitor. 5.0 Supply Current, IDD (A) 2.5 0.0 -2.5 -5.0 -40 -20 0 20 40 60 80 100 120 Temperature (C) MCP9509C MCP9509H MCP9510C MCP9510H Temperature Accuracy (C) 50 Spec. Limit + Average - 45 40 35 30 25 20 15 10 -40 MCP9509C MCP9509H VDD = 5.5V VDD = 4.1V VDD = 2.7V -20 0 20 40 60 80 100 120 Temperature (C) FIGURE 2-1: Temperature Accuracy. FIGURE 2-4: Supply Current vs. Temperature (MCP9509). 50 Supply Current, IDD (A) 5.0 4.0 3.0 2.0 1.0 0.0 HYST = GND 5.0 4.0 Hysteresis (k) 45 40 35 30 25 20 15 10 MCP9510C MCP9510H Hysteresis (C) Hysteresis (k) Hysteresis (C) 3.0 2.0 1.0 0.0 VDD = 5.5V VDD = 4.1V VDD = 2.7V OUTSET = VDD, VSS -40 -20 0 20 40 60 80 100 120 -40 -20 0 20 40 60 80 100 120 Temperature (C) Temperature (C) FIGURE 2-2: Temperature. 15.0 HYST = VDD Output Hysteresis vs. FIGURE 2-5: Supply Current vs. Temperature OUTSET = VDD, VSS (MCP9510). 50 I DD (A), De-Asserted 45 40 35 30 25 20 15 10 -40 OUTSET = Open OUT = Open-Drain Output with Internal PullAsserted, Internal Pull-Up Current MCP9510C MCP9510H VDD = 4.0V De-Asserted 10.0 9.0 8.0 Hysteresis (k) Hysteresis (C) 110 105 Hysteresis (C) 13.0 11.0 9.0 7.0 5.0 -40 -20 0 20 40 60 TA (C) 80 100 120 IDD (A), Asserted 100 95 90 85 80 75 70 Hysteresis (k) 7.0 6.0 5.0 -20 0 20 40 60 80 100 120 Temperature (C) FIGURE 2-3: Temperature. Output Hysteresis vs. FIGURE 2-6: Supply Current vs. Temperature OUTSET = Unconnected, Open (MCP9510). (c) 2008 Microchip Technology Inc. DS22114A-page 5 MCP9509/10 Note: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40C to +125C, GND = Ground, RPULL-UP = 10 k (MCP9509 only) and 0.1 f bypass capacitor. 20% 16% Occurrences 12% 8% 4% 0% -3.0 -2.0 -1.0 2.0 0.0 1.0 3.0 Temperature Accuracy (C) 20% 16% Occurrences 12% 8% 4% 0% -2.0 -1.0 -3.0 2.0 0.0 1.0 Temperature Accuracy (C) 3.0 5.0 6.0 3.0 TA = +45C VDD = 4.1V 9087 Units 6 Lots TA = 0C VDD = 4.1V 8936 Units 6 Lots FIGURE 2-7: Temperature Accuracy Histogram at +45C. 20% 16% Occurrences 12% 8% 4% 0% -3.0 -2.0 -1.0 2.0 0.0 1.0 3.0 Temperature Accuracy (C) FIGURE 2-10: Histogram at 0C. 20% 16% Occurrences 12% 8% 4% 0% -3.0 -2.0 Temperature Accuracy TA = +70C VDD = 4.1V 9280 Units 6 Lots TA = -20C VDD = 4.1V 8304 Units 6 Lots -1.0 Temperature Accuracy (C) FIGURE 2-8: Temperature Accuracy Histogram at +70C. 20% 16% Occurrences 12% 8% 4% 0% 2.0 -3.0 -2.0 -1.0 0.0 1.0 3.0 Temperature Accuracy (C) FIGURE 2-11: Temperature Accuracy Histogram at -20C. 20% 16% Occurrences 12% 8% 4% 0% 1.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 Temperature Accuracy (C) 4.0 0.0 2.0 3.0 TA = +125C VDD = 4.1V 9083 Units 6 Lots TA = -40C VDD = 4.1V 9412 Units 6 Lots FIGURE 2-9: Temperature Accuracy Histogram at +125C. FIGURE 2-12: Temperature Accuracy Histogram at -40C. DS22114A-page 6 (c) 2008 Microchip Technology Inc. 2.0 0.0 1.0 MCP9509/10 Note: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40C to +125C, GND = Ground, RPULL-UP = 10 k (MCP9509 only) and 0.1 f bypass capacitor. 1 0.75 0.5 0.25 0 -40 -20 0 20 40 60 80 100 120 Temperature (C) Hysteresis Input Leakage 1 Output Leakage (A) 0.75 0.5 0.25 0 -40 MCP9509 Output Leakage Leakage (A) VDD = 5.5V VDD = 2.7V -20 0 20 40 60 80 100 120 Temperature (C) FIGURE 2-13: vs, Temperature. Hysteresis Input Leakage FIGURE 2-14: Temperature. Output Leakage vs. (c) 2008 Microchip Technology Inc. DS22114A-page 7 MCP9509/10 NOTES: DS22114A-page 8 (c) 2008 Microchip Technology Inc. MCP9509/10 3.0 PIN DESCRIPTIONS PIN FUNCTION TABLE MCP9510 SOT-23-6 1 2 -- 3 4 SET GND OUT OUT, OUT HYS External Trip Temperature Resistor (RSET) input Ground Open-drain output Selectable Output pin, function set by OUTSET pin Hysteresis Input HYS = GND, hysteresis is 2C HYS = VDD, hysteresis is 10C Power pin Symbol Description TABLE 3-1: MCP9509 SOT-23-5 1 2 3 -- 4 5 -- 6 5 VDD OUTSET Output Control OUTSET = GND, Active-Low, Push-Pull OUTSET = VDD, Active-High, Push-Pull OUTSET = Unconnected, Active-Low, Open-Drain with an internal pull-up 3.1 External Resistor Input (SET) 3.5 This pin is used to connect a resistor between the SET and GND pins to select the temperature trip point (TSET). The resistor value can be determined either from Equation 4-2 or the lookup table shown in Table 4-2. Open-Drain Output (OUT) (MCP9509) This output is triggered when temperature exceeds the programmed trip temperature. This pin requires a pull-up resistor. 3.2 3.3 Ground (GND) Hysteresis Input (HYS) 3.6 Selectable Output (OUT, OUT) (MCP9510) The GND pin is the system ground pin. This is an input pin which can be connected to VDD or GND to select output hysteresis. Either 2C (HYS = GND) or 10C (HYS = VDD) of hysteresis can be selected. The output pin can be configured as either a Push-Pull Active-High, Push-Pull Active-Low, or an Open-drain Output with an internal pull-up resistor. The three output options of the MCP9510 are selected by the OUTSET pin. 3.7 Output Control (OUTSET) (MCP9510) 3.4 Power Pin (VDD) The operating voltage range, as specified in the DC electrical specification table, is applied on this pin. The OUTSET pin is used to select the desired configuration of the OUT or OUT pin. TABLE 3-1: OUTSET SELECTABLE OUTPUTS OUT / OUT Pin Push-Pull, Active-Low Push-Pull, Active-High Open-Drain output with an internal pull-up resistor of 100 k (typical) OUTSET Pin GND VDD unconnected (i.e. open) (c) 2008 Microchip Technology Inc. DS22114A-page 9 MCP9509/10 NOTES: DS22114A-page 10 (c) 2008 Microchip Technology Inc. MCP9509/10 4.0 FUNCTIONAL DESCRIPTION MCP9510 R1 RA OUTSET Pin RA R2 + + R3 VDD The MCP9509/10 integrates a temperature switch with a user programmable threshold. The temperature switch threshold or alert limit is programmed using an external resistor RSET. A logic signal is asserted when the die temperature crosses the programmed alert limit. The MCP9509 has an Open-Drain output which requires an external pull-up resistor for operation. The MCP9510 output can be configured to three user selectable output configurations. The OUTSET pin is used to select Active-Low Push-Pull, Active-Low Open-Drain (with internal 100 k pull-up resistor), Active-High Push-Pull output configurations. In addition, this device provides user selectable hysteresis of 2C and 10C (typical). 4.1 SET Input Pin FIGURE 4-2: Structure. MCP9510 OUTSET Input The SET input pin is used to connect an external resistor RSET. The resistor sets the alert threshold. The SET pin outputs a constant current ISET (~5 A) to bias RSET (Shown in Figure 4-1). The voltage across RSET, VSET, is compared to an internal thermal diode. The OUTSET pin input impedance ZOUTSET is set by the internal resistance RA = 1 M (typical). The input structure is a voltage divider network from VDD. Therefore, the leakage current on the OUTSET pin is a function of change in VDD and the VOSET. 4.3 ISET Rx + HYST Input Pin (Hysteresis Select) OUT/ OUT SET VSET RSET - The MCP9509/10 family has a user selectable hysteresis input pin HYST. Hysteresis can be externally selected to either 2C (HYST = GND) or 10C (HYST = VDD). Figure 4-3 shows graphical description of change in hysteresis. For example, if the alert temperature threshold is set to TSET = 100C (RSET = 16.1 k) with an Active-Low output configuration, the output asserts Low when temperature exceeds 100C TACY. The output remains asserted Low until temperautre falls below THYST, 98C (HYST = GND) or 90C (HYST = VDD). 10C Typical Hysteresis V 2C Typical Hysteresis OUT Thermal Diode FIGURE 4-1: SET input. When the thermal diode voltage exceeds VSET, the sensor output asserts. The assert polarity is determined by the state of the OUTSET pin. 4.2 MCP9510 OUTSET Input Pin This pin is used to select the device output configuration. This feature enables in-circuit device output configuration by driving this pin with a microcontroller I/O pin to Output-HIGH, Output-LOW, or High-Impedance input. Figure 4-4 shows the configuration and output conditions. The input structure of this pin consists of a resistor ladder and comparators to determine OUTSET level threshold. Figure 4-2 shows the circuit configuration. The OUTSET input resistance must be carefully considered for leakage current when connecting voltage source to change output configuration. THYST Cold TSET Hot Temperature FIGURE 4-3: Output Hysteresis. (c) 2008 Microchip Technology Inc. DS22114A-page 11 MCP9509/10 4.4 Sensor Hot/Cold Options EQUATION 4-1: MCP9509/10 is available with Hot (H) and Cold (C) options. The MCP9509/10 Hot option detects rising temperature while the Cold option detects falling temperature. The output of the Hot option asserts when temperature rises above TSET and de-asserts when temperature falls below THYST. The output of the Cold option asserts when temperature falls below TSET and de-asserts when temperature rises above THYST. For example, if TSET = 100C for Hot option (Active-Low Configuration, HYST = VDD), output asserts Low when temperature is greater than 100C TACY. The output de-asserts High when temperature is below 90C. For the Cold option, output asserts Low when temperature is less than 100C TACY, and de-asserts when temperature is greater than 110C. This operation is shown graphically in Figure 4-4. TSET TO RSET CONVERSION R SET = C R1 T SET ( T SET - T 1 ) ( T SET - T 2 ) + C R2 ( T SET - T 1 ) ( T SET - T 2 ) + C R3 ( T SET - T 1 ) + R 2 Where: CR1,2,3 = 1st, 2nd and 3rd order Temperature to Resistance Conversion Coefficients (Table 4-1) Resistance (Table 4-1) Temperature (Table 4-1) R2 T1,2 = = EQUATION 4-2: RSET TO TSET CONVERSION 4.5 RSET vs. Temperature T SET = C T1 ( R SET - R 1 ) ( R SET - R 2 ) ( R SET - R 3 ) + C T2 ( R SET - R 3 ) ( R SET - R 2 ) + C T3 ( R SET - R 2 ) + T 1 Where: CC1,2,3 = 1st, 2nd and 3rd order Resistance to Temperature Conversion Coefficients (Table 4-1) Resistance (Table 4-1) Temperature (Table 4-1) The relation between the user selectable external resistor RSET and the output trigger threshold limit TSET is described as shown in EQUATION 4-1: "TSET to Rset conversion" and EQUATION 4-2: "RSET to Tset conversion". The equation coeffcients vary depending on the device output options, H or C. Table 4-1 shows the corresponding coefficients. TABLE 4-1: Coef. CR1 CR2 CR3 CT1 CT2 CT3 R1 R2 R3 T1 T2 COEFFICIENTS/VARIABLES MCP9509/10C -10.00 3.345 -0.8610 -19.7 4.179 -1.1617 95.1 146.3 4.25 -40.0 125.0 Units 10-6k/C3 10-3k/C2 k/C 10-6C/k3 10-3C/k2 C/k k k k C C R1,2,3 T1 = = MCP9509/10H -9.84 3.355 -0.8648 -20.00 4.136 -1.1564 94.1 145.5 2.77 The equations can be used to determine the external resistance value for a specified temperature threshold or threshold value for a specified resistance. Table 4-2 and Table 4-3 show a look-up table which can be used to easily identify the TSET to RSET relation for Hot and Cold options. DS22114A-page 12 (c) 2008 Microchip Technology Inc. MCP9509/10 MCP9509H Output V is es ter ys H MCP9509C Output V is res ste Hy OUT -> Active-Low OUT OUT THYST TSET TSET THYST Cold Hot Temperature Output -> Open-Drain with external Pull-up Cold Hot Temperature MCP9510H Output V Hy is res ste MCP9510C Output V is res ste Hy OUTSET -> VOSET < 0.2VDD OUT -> Active-Low OUT OUT THYST TSET TSET THYST Cold Hot Temperature Output -> Push-Pull Cold Hot Temperature MCP9510H Output OUTSET -> Open/Unconnected or OUTSET -> 0.45VDDVOUTSET 0.7VDD Output -> Open-Drain with ROUT OUT -> Active-Low THYST TSET MCP9510C Output V OUT res ste Hy is V H te ys is r es OUT TSET THYST Cold Hot Temperature MCP9510H Output V Hy is res ste Cold Hot Temperature MCP9510C Output V is res ste Hy Output -> Push-Pull OUT -> Active-High OUT OUT THYST TSET TSET THYST Cold Hot Temperature OUTSET -> VDD Cold Hot Temperature FIGURE 4-4: MCP9509/10 OUT/OUT Output Configuration. (c) 2008 Microchip Technology Inc. DS22114A-page 13 MCP9509/10 TABLE 4-2: TSET (C) -40.0 -39.5 -39.0 -38.5 -38.0 -37.5 -37.0 -36.5 -36.0 -35.5 -35.0 -34.5 -34.0 -33.5 -33.0 -32.5 -32.0 -31.5 -31.0 -30.5 -30.0 -29.5 -29.0 -28.5 -28.0 -27.5 -27.0 -26.5 -26.0 -25.5 -25.0 -24.5 -24.0 -23.5 -23.0 -22.5 -22.0 -21.5 -21.0 -20.5 -20.0 RSET (k) 145.5 144.8 144.0 143.3 142.6 141.8 141.1 140.4 139.7 138.9 138.2 137.5 136.8 136.1 135.4 134.7 134.0 133.3 132.6 131.9 131.2 130.5 129.8 129.1 128.5 127.8 127.1 126.4 125.8 125.1 124.4 123.8 123.1 122.4 121.8 121.1 120.5 119.8 119.2 118.5 117.9 TSET TO RSET CONVERSION TABLE FOR MCP9509/MCP9510H (HOT) TSET (C) -20.0 -19.5 -19.0 -18.5 -18.0 -17.5 -17.0 -16.5 -16.0 -15.5 -15.0 -14.5 -14.0 -13.5 -13.0 -12.5 -12.0 -11.5 -11.0 -10.5 -10.0 -9.5 -9.0 -8.5 -8.0 -7.5 -7.0 -6.5 -6.0 -5.5 -5.0 -4.5 -4.0 -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 RSET (k) 117.9 117.3 116.6 116.0 115.4 114.7 114.1 113.5 112.9 112.2 111.6 111.0 110.4 109.8 109.2 108.6 108.0 107.4 106.8 106.2 105.6 105.0 104.4 103.8 103.2 102.6 102.0 101.5 100.9 100.3 99.7 99.2 98.6 98.0 97.5 96.9 96.4 95.8 95.2 94.7 94.1 TSET (C) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 RSET (k) 94.1 93.6 93.0 92.5 91.9 91.4 90.9 90.3 89.8 89.3 88.7 88.2 87.7 87.2 86.6 86.1 85.6 85.1 84.6 84.0 83.5 83.0 82.5 82.0 81.5 81.0 80.5 80.0 79.5 79.0 78.5 78.0 77.6 77.1 76.6 76.1 75.6 75.1 74.7 74.2 73.7 TSET (C) 20.0 20.5 21.0 21.5 22.0 22.5 23.0 23.5 24.0 24.5 25.0 25.5 26.0 26.5 27.0 27.5 28.0 28.5 29.0 29.5 30.0 30.5 31.0 31.5 32.0 32.5 33.0 33.5 34.0 34.5 35.0 35.5 36.0 36.5 37.0 37.5 38.0 38.5 39.0 39.5 40.0 RSET (k) 73.7 73.2 72.8 72.3 71.8 71.4 70.9 70.5 70.0 69.5 69.1 68.6 68.2 67.7 67.3 66.8 66.4 65.9 65.5 65.1 64.6 64.2 63.7 63.3 62.9 62.4 62.0 61.6 61.2 60.7 60.3 59.9 59.5 59.1 58.6 58.2 57.8 57.4 57.0 56.6 56.2 TSET (C) 40.0 40.5 41.0 41.5 42.0 42.5 43.0 43.5 44.0 44.5 45.0 45.5 46.0 46.5 47.0 47.5 48.0 48.5 49.0 49.5 50.0 50.5 51.0 51.5 52.0 52.5 53.0 53.5 54.0 54.5 55.0 55.5 56.0 56.5 57.0 57.5 58.0 58.5 59.0 59.5 60.0 RSET (k) 56.2 55.8 55.4 55.0 54.6 54.2 53.8 53.4 53.0 52.6 52.2 51.8 51.4 51.0 50.6 50.2 49.9 49.5 49.1 48.7 48.3 48.0 47.6 47.2 46.8 46.5 46.1 45.7 45.4 45.0 44.6 44.3 43.9 43.5 43.2 42.8 42.5 42.1 41.8 41.4 41.1 TSET (C) 60.0 60.5 61.0 61.5 62.0 62.5 63.0 63.5 64.0 64.5 65.0 65.5 66.0 66.5 67.0 67.5 68.0 68.5 69.0 69.5 70.0 70.5 71.0 71.5 72.0 72.5 73.0 73.5 74.0 74.5 75.0 75.5 76.0 76.5 77.0 77.5 78.0 78.5 79.0 79.5 80.0 RSET (k) 41.1 40.7 40.3 40.0 39.7 39.3 39.0 38.6 38.3 37.9 37.6 37.2 36.9 36.6 36.2 35.9 35.6 35.2 34.9 34.6 34.2 33.9 33.6 33.3 32.9 32.6 32.3 32.0 31.6 31.3 31.0 30.7 30.4 30.0 29.7 29.4 29.1 28.8 28.5 28.2 27.9 TSET (C) 80.0 80.5 81.0 81.5 82.0 82.5 83.0 83.5 84.0 84.5 85.0 85.5 86.0 86.5 87.0 87.5 88.0 88.5 89.0 89.5 90.0 90.5 91.0 91.5 92.0 92.5 93.0 93.5 94.0 94.5 95.0 95.5 96.0 96.5 97.0 97.5 98.0 98.5 99.0 99.5 100.0 RSET (k) 27.9 27.5 27.2 26.9 26.6 26.3 26.0 25.7 25.4 25.1 24.8 24.5 24.2 23.9 23.6 23.3 23.0 22.7 22.4 22.1 21.8 21.5 21.3 21.0 20.7 20.4 20.1 19.8 19.5 19.2 19.0 18.7 18.4 18.1 17.8 17.5 17.2 17.0 16.7 16.4 16.1 TSET (C) 100.0 100.5 101.0 101.5 102.0 102.5 103.0 103.5 104.0 104.5 105.0 105.5 106.0 106.5 107.0 107.5 108.0 108.5 109.0 109.5 110.0 110.5 111.0 111.5 112.0 112.5 113.0 113.5 114.0 114.5 115.0 115.5 116.0 116.5 117.0 117.5 118.0 118.5 119.0 119.5 120.0 RSET (k) 16.1 15.9 15.6 15.3 15.0 14.7 14.5 14.2 13.9 13.6 13.4 13.1 12.8 12.6 12.3 12.0 11.7 11.5 11.2 10.9 10.7 10.4 10.1 9.9 9.6 9.3 9.1 8.8 8.5 8.3 8.0 7.7 7.5 7.2 7.0 6.7 6.4 6.2 5.9 5.7 5.4 TSET (C) 120.0 120.5 121.0 121.5 122.0 122.5 123.0 123.5 124.0 124.5 125.0 RSET (k) 5.4 5.1 4.9 4.6 4.4 4.1 3.8 3.6 3.3 3.1 2.8 DS22114A-page 14 (c) 2008 Microchip Technology Inc. MCP9509/10 TABLE 4-3: TSET (C) -40.0 -39.5 -39.0 -38.5 -38.0 -37.5 -37.0 -36.5 -36.0 -35.5 -35.0 -34.5 -34.0 -33.5 -33.0 -32.5 -32.0 -31.5 -31.0 -30.5 -30.0 -29.5 -29.0 -28.5 -28.0 -27.5 -27.0 -26.5 -26.0 -25.5 -25.0 -24.5 -24.0 -23.5 -23.0 -22.5 -22.0 -21.5 -21.0 -20.5 -20.0 RSET (k) 146.3 145.6 144.8 144.1 143.4 142.6 141.9 141.2 140.5 139.8 139.0 138.3 137.6 136.9 136.2 135.5 134.8 134.1 133.4 132.7 132.0 131.4 130.7 130.0 129.3 128.6 128.0 127.3 126.6 126.0 125.3 124.6 124.0 123.3 122.7 122.0 121.4 120.7 120.1 119.4 118.8 TSET TO RSET CONVERSION TABLE FOR MCP9509/MCP9510C (COLD) TSET (C) -20.0 -19.5 -19.0 -18.5 -18.0 -17.5 -17.0 -16.5 -16.0 -15.5 -15.0 -14.5 -14.0 -13.5 -13.0 -12.5 -12.0 -11.5 -11.0 -10.5 -10.0 -9.5 -9.0 -8.5 -8.0 -7.5 -7.0 -6.5 -6.0 -5.5 -5.0 -4.5 -4.0 -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 RSET (k) 118.8 118.2 117.5 116.9 116.3 115.6 115.0 114.4 113.8 113.2 112.5 111.9 111.3 110.7 110.1 109.5 108.9 108.3 107.7 107.1 106.5 105.9 105.3 104.8 104.2 103.6 103.0 102.4 101.9 101.3 100.7 100.1 99.6 99.0 98.5 97.9 97.3 96.8 96.2 95.7 95.1 TSET (C) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 RSET (k) 95.1 94.6 94.0 93.5 93.0 92.4 91.9 91.4 90.8 90.3 89.8 89.2 88.7 88.2 87.7 87.2 86.6 86.1 85.6 85.1 84.6 84.1 83.6 83.1 82.6 82.1 81.6 81.1 80.6 80.1 79.6 79.1 78.6 78.2 77.7 77.2 76.7 76.2 75.8 75.3 74.8 TSET (C) 20.0 20.5 21.0 21.5 22.0 22.5 23.0 23.5 24.0 24.5 25.0 25.5 26.0 26.5 27.0 27.5 28.0 28.5 29.0 29.5 30.0 30.5 31.0 31.5 32.0 32.5 33.0 33.5 34.0 34.5 35.0 35.5 36.0 36.5 37.0 37.5 38.0 38.5 39.0 39.5 40.0 RSET (k) 74.8 74.4 73.9 73.4 73.0 72.5 72.0 71.6 71.1 70.7 70.2 69.8 69.3 68.9 68.4 68.0 67.5 67.1 66.7 66.2 65.8 65.3 64.9 64.5 64.1 63.6 63.2 62.8 62.4 61.9 61.5 61.1 60.7 60.3 59.8 59.4 59.0 58.6 58.2 57.8 57.4 TSET (C) 40.0 40.5 41.0 41.5 42.0 42.5 43.0 43.5 44.0 44.5 45.0 45.5 46.0 46.5 47.0 47.5 48.0 48.5 49.0 49.5 50.0 50.5 51.0 51.5 52.0 52.5 53.0 53.5 54.0 54.5 55.0 55.5 56.0 56.5 57.0 57.5 58.0 58.5 59.0 59.5 60.0 RSET (k) 57.4 57.0 56.6 56.2 55.8 55.4 55.0 54.6 54.2 53.8 53.4 53.0 52.7 52.3 51.9 51.5 51.1 50.7 50.4 50.0 49.6 49.2 48.9 48.5 48.1 47.7 47.4 47.0 46.6 46.3 45.9 45.6 45.2 44.8 44.5 44.1 43.8 43.4 43.1 42.7 42.4 TSET (C) 60.0 60.5 61.0 61.5 62.0 62.5 63.0 63.5 64.0 64.5 65.0 65.5 66.0 66.5 67.0 67.5 68.0 68.5 69.0 69.5 70.0 70.5 71.0 71.5 72.0 72.5 73.0 73.5 74.0 74.5 75.0 75.5 76.0 76.5 77.0 77.5 78.0 78.5 79.0 79.5 80.0 RSET (k) 42.4 42.0 41.7 41.3 41.0 40.6 40.3 39.9 39.6 39.3 38.9 38.6 38.2 37.9 37.6 37.2 36.9 36.6 36.2 35.9 35.6 35.3 34.9 34.6 34.3 34.0 33.6 33.3 33.0 32.7 32.4 32.0 31.7 31.4 31.1 30.8 30.5 30.2 29.9 29.5 29.2 TSET (C) 80.0 80.5 81.0 81.5 82.0 82.5 83.0 83.5 84.0 84.5 85.0 85.5 86.0 86.5 87.0 87.5 88.0 88.5 89.0 89.5 90.0 90.5 91.0 91.5 92.0 92.5 93.0 93.5 94.0 94.5 95.0 95.5 96.0 96.5 97.0 97.5 98.0 98.5 99.0 99.5 100.0 RSET (k) 29.2 28.9 28.6 28.3 28.0 27.7 27.4 27.1 26.8 26.5 26.2 25.9 25.6 25.3 25.0 24.7 24.4 24.1 23.8 23.5 23.2 23.0 22.7 22.4 22.1 21.8 21.5 21.2 20.9 20.7 20.4 20.1 19.8 19.5 19.2 19.0 18.7 18.4 18.1 17.8 17.6 TSET (C) 100.0 100.5 101.0 101.5 102.0 102.5 103.0 103.5 104.0 104.5 105.0 105.5 106.0 106.5 107.0 107.5 108.0 108.5 109.0 109.5 110.0 110.5 111.0 111.5 112.0 112.5 113.0 113.5 114.0 114.5 115.0 115.5 116.0 116.5 117.0 117.5 118.0 118.5 119.0 119.5 120.0 RSET (k) 17.6 17.3 17.0 16.7 16.4 16.2 15.9 15.6 15.3 15.1 14.8 14.5 14.3 14.0 13.7 13.4 13.2 12.9 12.6 12.4 12.1 11.8 11.6 11.3 11.0 10.8 10.5 10.2 10.0 9.7 9.4 9.2 8.9 8.7 8.4 8.1 7.9 7.6 7.3 7.1 6.8 TSET (C) 120.0 120.5 121.0 121.5 122.0 122.5 123.0 123.5 124.0 124.5 125.0 RSET (k) 6.8 6.6 6.3 6.0 5.8 5.5 5.3 5.0 4.8 4.5 4.2 (c) 2008 Microchip Technology Inc. DS22114A-page 15 MCP9509/10 4.6 Application Information HYST 5VDD MCP9510 OUT SET 5VDD RSET OUTSET I/O Microcontroller The MCP9509/10 temperature switch integrates a temperature sensor and a comparator circuit which outputs an alert signal when the user programmed temperature threshold is exceeded. The external resistor value to set the output threshold can be determined using Table 4-2. A constant current source ISET = 5 A (typical) biases the external resistor RSET. A thermal diode is used to measure ambient temperature. When the voltage across the thermal diode exceeds the voltage across RSET, VSET, the sensor output asserts. The sensor output de-asserts when the diode voltage drops below VSET and the user selected hysteresis level. The MCP9509/10 provide Open-drain output where multiple sensors from multiple PCB hot-spots can be connected to a single processor I/O input with a wired-Or Configuration. The MCP9509 requires an external pull-up resistor which can be used to level-shift the alert signal. For example, if the sensors are powered with 5VDD and the controller or processor is powered with 3VDD, the external resistor can be level-shifted by connecting 3VDD to the pull-up resistor as shown in Figure 4-5. The MCP9510 elliminates the need for an external resistor while providing wired-Or function (Figure 4-6). The MCP9510 also provides push-pull output configuration for a direct connection to the processor with Active-Low or Active-High assert polarities. HYST 5VDD MCP9510 OUT SET RSET OUTSET FIGURE 4-6: MCP9510 Wired-Or Output Configuration with Internal Pull-up Resistor. 4.6.1 LAYOUT CONSIDERATION AND THERMAL CONSIDERATION HYST 5VDD MCP9509 OUT 3VDD RPULL_UP 3VDD I/O SET RSET This family of sensors measure temperature by monitoring the voltage level of a thermal diode located in the die. A low-impedance thermal path between the die and the PCB is provided by the pins. Therefore, the sensor effectively monitors PCB temperature. For efficient performance, it is recommended to layout the device as close to the heat source as possible. It is also recommended to use a de-coupling capacitor of 0.1 F to 1 F between VDD and GND pins for stability. When connecting an external resistor to the MCP9509 device, the current through the pull-up resistor must be considered to prevent self-heat due to power. This can be determined using Equation 4-3. HYST 5VDD MCP9509 OUT Microcontroller EQUATION 4-3: EFFECT OF SELF-HEATING SET RSET T J - T A = JA ( V DD x I DD + V OL x I OUT ) Where: TJ TA = = = = = Junction Temperature Ambient Temperature Package Thermal Resistance (220.7 C/W) Sensor Output Low Voltage Output Current FIGURE 4-5: MCP9509 Wired-Or Output Configuration with Level-shift. JA VOL IOUT DS22114A-page 16 (c) 2008 Microchip Technology Inc. MCP9509/10 For example, at room temperature, when output asserts Active-Low and maximum IDD = 50 A, VDD = 5.5V, VOL = 0.3V and IOUT = 5 mA (see specification table), the self heating due to power dissipation (TJ - TA) is ~0.4C. 4.6.3 POWER SUPPLY REJECTION 4.6.2 DRIVING OUTSET WITH A MICROCONTROLLER I/O PIN Output Voltage (V) The OUTSET pin can be controlled using a Microcontroller input/output (I/O) pin. I/O levels HIGH and LOW provide push-pull configuration with Active-High and Active-Low outputs, respectively. The Open-Drain output with internal pull-up resistor can be selected by configuring the I/O pin as a High-Impedance Input. The Open-Drain output can also be selected by forcing voltage level VOSET from a low impedance source. With this configuration, there maybe some leakage current due to impedance mismatch, (See Figure 4-2). The MCP9509/10 family of sensors are designed to prevent false output trigger due to high frequency power supply or system noise. Figure 4-7 shows device performance with a high frequency signal added on VDD. The output is not triggered due to the signal added on VDD. With some applications, it is recommended to add a bypass capacitor of 0.1 F to 1 F. 6 MCP9509/10 Power Supply Rejection 5 4 3 2 1 VDD = 5V + 400mVAC VDD = 5V + 400mVSQR No False Trigger Frequency (Hz) FIGURE 4-7: (PSR). Power Supply Rejection (c) 2008 Microchip Technology Inc. DS22114A-page 17 10M 10 100 10 100 1M 1k 0 10 100 10 00 10 000 10 000 0 10 000 00 10 000 000 MCP9509/10 NOTES: DS22114A-page 18 (c) 2008 Microchip Technology Inc. MCP9509/10 5.0 5.1 PACKAGING INFORMATION Package Marking Information 5-Lead SOT-23 5 4 Example: 5 4 Device Code AQNN BPNN 1 2 3 XXNN 1 2 3 MCP9509CT-E/OT MCP9509HT-E/OT AQ25 6-Lead SOT-23 Example Part Number Code AKNN ALNN 1 XXNN 1 MCP9510CT-E/CH MCP9510HT-E/CH AK25 Legend: XX...X Y YY WW NNN e3 * Note: Customer-specific information Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code Pb-free JEDEC designator for Matte Tin (Sn) This package is Pb-free. The Pb-free JEDEC designator ( e3 ) can be found on the outer packaging for this package. In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. (c) 2008 Microchip Technology Inc. DS22114A-page 19 MCP9509/10 /HDG 3ODVWLF 6PDOO 2XWOLQH 7UDQVLVWRU 27 >627@ 1RWH )RU WKH PRVW FXUUHQW SDFNDJH GUDZLQJV SOHDVH VHH WKH 0LFURFKLS 3DFNDJLQJ 6SHFLILFDWLRQ ORFDWHG DW KWWSZZZPLFURFKLSFRPSDFNDJLQJ b N E E1 1 e 2 3 e1 D A A2 c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page 20 (c) 2008 Microchip Technology Inc. MCP9509/10 /HDG 3ODVWLF 6PDOO 2XWOLQH 7UDQVLVWRU &+ >627@ 1RWH )RU WKH PRVW FXUUHQW SDFNDJH GUDZLQJV SOHDVH VHH WKH 0LFURFKLS 3DFNDJLQJ 6SHFLILFDWLRQ ORFDWHG DW KWWSZZZPLFURFKLSFRPSDFNDJLQJ b N 4 E E1 PIN 1 ID BY LASER MARK 1 2 e e1 D 3 A A2 c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c) 2008 Microchip Technology Inc. DS22114A-page 21 MCP9509/10 NOTES: DS22114A-page 22 (c) 2008 Microchip Technology Inc. MCP9509/10 APPENDIX A: REVISION HISTORY Revision A (November 2008) * Original Release of this Document. (c) 2008 Microchip Technology Inc. DS22114A-page 21 MCP9509/10 NOTES: DS22114A-page 22 (c) 2008 Microchip Technology Inc. MCP9509/10 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. Device -X /XX Examples: a) MCP9509CT-E/OT: Cold option, Extended Temp., 5LD SOT-23 package. MCP9509HT-E/OT: Hot option, Extended Temp., 5LD SOT-23 package. MCP9510C-E/CH: Cold option, Extended Temp., 6LD SOT-23 package. MCP9510H-E/CH: Hot option, Extended Temp., 6LD SOT-23 package. Temperature Package Range b) Device: MCP9509H: Resistor Programmable Temperature Switch, Hot Option MCP9509C Resistor Programmable Temperature Switch, Cold Option MCP9510H: Resistor Programmable Temperature Switch, Hot Option MCP9510C Resistor Programmable Temperature Switch, Cold Option a) b) Temperature Range: E = -40C to +125C Package: CH = Plastic Small Outline Transistor (SOT-23), 6-lead (MCP9510 only) OT = Plastic Small Outline Transistor (SOT-23), 5-lead (MCP9509) (c) 2008 Microchip Technology Inc. DS22114A-page 23 MCP9509/10 NOTES: DS22114A-page 24 (c) 2008 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: * * Microchip products meet the specification contained in their particular Microchip Data Sheet. Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. Microchip is willing to work with the customer who is concerned about the integrity of their code. Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable." * * * Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. 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