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TB6562ANG
Preliminary
TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB6562ANG
Dual Full-Bridge Driver IC for Stepping Motors
The TB6562ANG is a 2-phase bipolar stepping motor driver that contains DMOS transistors in the output stage. The driver achieves high efficiency through the use of low ON-resistance DMOS transistors and PWM current control circuitry.
Features
* * * * * * * * * 2-phase/1-2 phase/W 1-2 phase excitation PWM current control Power supply voltage: 40 V (max) Output current: 1.5 A (max) Low ON-resistance: 1.5 (upper and lower transistors/typ.) Power-saving function Overcurrent protection: Ilim2.5 A (typ.) Thermal shutdown Package: SDIP24-P-300-1.78 Weight: 1.62 g (typ.)
TB6562ANG: TB6562ANG is Pb-free product. The following conditions apply to solderability: *Solderability 1. Use of Sn-63Pb solder bath *solder bath temperature = 230C *dipping time = 5 seconds *number of times = once *use of R-type flux 2. Use of Sn-3.0Ag-0.5Cu solder bath *solder bath temperature = 245C *dipping time = 5 seconds *number of times = once *use of R-type flux
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Block Diagram
Some functional blocks, circuits, or constants may be omitted or simplified in the block diagram for explanatory purposes.
GND 24 Vreg 2 SB 3 OSC 22 OSC 5V Waveform squaring circuit VCC 23 OUT2A 11 Vcc 7 OUT1A 8 OUT2B 14 Vcc 18 OUT1B 17 13 GND
Thermal shutdown
Control logic
Decoder
1 GND
4 Phase A
5 X1A
6 X2A
21 Phase B
20 X1B
19 X2B
9 VrefA
10 RSA
16 VrefB
15 RSB
12 GND
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Maximum Ratings (Ta = 25C)
Characteristics Power supply voltage Output voltage Output current Input voltage Power dissipation Operating temperature Storage temperature Junction temperature Symbol VCC Vo IO (Peak) Vin PD Topr Tstg Tjmax Rating 40 40 1.5 5.5 2.5 (Note 1) -20 to 85 -55 to 150 150 Unit V V A V W C C C
Note 1: When mounted on a board (50 mm x 50 mm x 1.6 mm, Cu area: 50%) The absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not be exceeded during operation, even for an instant. If any of these ratings are exceeded during operation, the electrical characteristics of the device may be irreparably altered, in which case the reliability and lifetime of the device can no longer be guaranteed. Moreover, any exceeding of the ratings during operation may cause breakdown, damage and/or degradation in other equipment. Applications using the device should be designed so that no maximum rating will ever be exceeded under any operating condition. Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set forth in this document.
Operating Range (Ta = 25C)
Characteristics Power supply voltage Input voltage Vref voltage PWM frequency Triangular-wave oscillation frequency Symbol VCC Vin Vref fpwm fosc Rating 10~ 34 0~ 5 0.5~ 7.0 15~ 80 45~ 400 Unit V V V kHz kHz
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Pin Description
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Symbol GND Vreg SB Phase A X1A X2A VCC OUT1A VrefA RSA OUT2A GND GND OUT2B RSB VrefB OUT1B VCC X2B X1B Phase B OSC VCC GND Function Description Ground pin 5-V output pin Standby pin Rotation direction control pin (ch. A) Input pin used to set output current level (ch. A) Input pin used to set output current level (ch. A) Power supply voltage input pin Output pin 1 (ch. A) Input pin for external reference voltage (ch. A) Output current detection resistor connection pin (ch. A) Output pin 2 (ch. A) Ground pin Ground pin Output pin 2 (ch. B) Output current detection resistor connection pin (ch. B) Power supply voltage input pin for motor drive (ch. B) Output pin 1 (ch. B) Power supply voltage input pin Input pin used to set output current level (ch. B) Input pin used to set output current level (ch. B) Rotation direction control pin (ch. B) Capacitor connection pin for triangular-wave oscillation Power supply voltage input pin Ground pin VCC (opr) = 10 V to 34 V Connect to a motor coil pin. VCC (opr) = 10 V to 34 V Apply a 0-V/5-V signal. Apply a 0-V/5-V signal. Apply a 0-V/5-V signal. Connect to a motor coil pin. Connect to a motor coil pin. Connect a capacitor between this pin and GND pin. HIGH: Start, LOW: Standby Apply a 0-V/5-V signal. Apply a 0-V/5-V signal. Apply a 0-V/5-V signal. VCC (opr) = 10 V to 34 V Connect to a motor coil pin. Remarks
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Electrical Characteristics (VCC = 24 V, Ta = 25C)
Characteristics Symbol ICC1 Supply current ICC2 ICC3 Input voltage Control circuit (Note 1) Input hysteresis voltage Input current VINH VINL VIN (HYS) IINH IINL Input voltage Input hysteresis voltage Input current VINSH VINSL Standby circuit VIN (HYS) IINSH IINSL Output ON-resistance Ron (U + L) IL (U) IL (L) Diode forward voltage Internal reference voltage Input current VF (U) VF (L) Vreg Iref Vref (1/10) Vref circuit Current limit voltage VIN = 5 V VIN = 0 V IO = 1.5 A IO = 1.5 A VCC = 40 V VCC = 40 V IO = 1.5 A IO = 1.5 A 1 mA Vref = 0.5 V X1 = X2 = L Vref = 5 V X1 = L, X2 = H 0.28 0.45 VIN = 5 V VIN = 0 V Test Circuit Test Condition XT1A = XT2A = H, XT1B = XT2B = H XT1A = XT2A = L, XT1B = XT2B = L Standby mode Min 2 -0.2 30 2 -0.2 30 4.75 Typ. 6.5 7.0 2.0 0.4 50 0.4 50 1.5 1.5 1.3 1.3 5 5 0.5 Max 10 12 4.0 5.5 0.8 75 5 5.5 0.8 75 5 2.0 2.0 10 10 2.0 2.0 5.25 10 0.55 V A V A A V A V mA Unit
Output leakage current
Vref (1/15)
0.33
Vref = 5 V X1 = H, X2 = L Vref 5 V C = 4700 pF
0.38
V
Vref (1/30) Triangular-wave oscillation frequency Thermal shutdown circuit operating temperature

0.12 88
0.17
0.22 132 kHz C
fosc TSD
110 160
Note 1: Phase, X1 and X2 pins
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Truth Tables
< 2-phase excitation >
Phase A Input Phase A H L L H X1A L L L L X2A L L L L Output IO(A) 100% -100% -100% 100% Phase B H H L L Input X1B L L L L X2B L L L L Phase B Output IO (B) 100% 100% -100% -100%
< 1-2 phase excitation >
Phase A Input Phase A H X L L L X H H X1A L H L L L H L L X2A L H L L L H L L Output IO (A) 100% 0% -100% -100% -100% 0% 100% 100% Phase B H H H X L L L X Input X1B L L L H L L L H X2B L L L H L L L H Phase B Output IO (B) 100% 100% 100% 0% -100% -100% -100% 0%
< W1-2 phase excitation >
Phase A Input Phase A X H H H H H H H X L L L L L L L X1A H H L L L L H L H H L L L L L H X2A H L H L L L L H H L H L L L H L Output IO (A) 0% 33.3% 66.7% 100% 100% 100% 33.3% 66.7% 0% -33.3% -66.7% -100% -100% -100% -66.7% -33.3% Phase B L L L L X H H H H H H H X L L L Input X1B L L L H H H L L L L L H H H L L X2B L L H L H L H L L L H L H L H L Phase B Output IO (B) -100% -100% -66.7% -33.3% 0% 33.3% 66.7% 100% 100% 100% 66.7% 33.3% 0% -33.3% -66.7% -100%
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Timing Charts
Timing charts may be simplified for explanatory purposes. < 2-phase excitation >
100 -100 100 IO (B) -100 H L H X1A L H X2A L H Phase B L H X1B L H X2B L
IO (A)
Phase A
< 1-2 phase excitation >
100 IO (A) 0% -100 100 IO (B) 0% -100 Phase A H L H X1A L H X2A L H Phase B L H X1B L H X2B L
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< W1-2 phase excitation >
100 66.7% 33.3% IO (A) 0% -33.3 -66.7% -100% 100 66.7% 33.3% IO (B) 0% -33.3 -66.7% -100%
Phase A
H L H
X1A
L H
X2A
L H
Phase B
L H
X1B
L H
X2B
L
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PWM Current Control
The IC enters CW (CCW) mode and short brake mode alternately during PWM current control. To prevent shoot-through current caused by simultaneous conduction of upper and lower transistors in the output stage, a dead time is internally generated for 500 ns (target spec) when the upper and lower transistors are being switched. Therefore synchronous rectification for high efficiency in PWM current control can be achieved without an off-time generated via an external input. Even when toggling between CW and CCW modes, and CW (CCW) and short brake modes, no off-time is required due to the internally generated dead time.
VCC VCC VCC
OUT1
M
OUT1
M
OUT1
M
RS
RS
RS
PWM ON t1
PWM ON OFF t2 = 500 ns (typ.) VCC
PWM OFF t3 VCC
OUT1
M
OUT1
M
RS PWM OFF ON t4 = 500 ns (typ.)
RS
PWM ON t5
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(1) Constant current regulation When VRS reaches the reference voltage (Vref), the IC enters discharge mode. After four clock signals are generated from the oscillator, the IC moves from discharge mode to charge mode.
Vref
VRS
OSC Internal clock
Vref VRS
Discharge GND
Charge
Discharge
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(2) Transition from charge mode to discharge mode If VRS > Vref after four clock signals in charge mode, the IC again enters discharge mode. After a further four clock signals in discharge mode, VRS is compared with Vref. If VRS < Vref, the IC operates in charge mode until VRS reaches Vref.
OSC Internal clock Vref VRS
Discharge Charge GND
Discharge
Charge
(3)
Transition from discharge mode to charge mode Even when the reference voltage has risen, discharge mode lasts for four clock signals and is then toggled to charge mode.
OSC Internal clock
Vref
VRS
Discharge
Charge
Discharge
GND
Internal oscillation frequency (fosc)
The internal oscillation frequency is determined by the charging and discharging of the external capacitor (Cosc): osc = 1 / (0.523 x (Cosc x 3700 Cosc x 600)) theoretical formula
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Reference Voltage Generator
The current value at 100% is determined by applying voltage at the Vref pin. The value can be calculated as: IO (100) = Vref x 1/10 x 1/RS[A] (X1 = X2 = L)
VCC Control circuit OUT1 M IO OUT2 Decoder X1 X2
1/10 1/15 1/30 RS IO
Vref
Thermal Shutdown Circuit (TSD)
The IC incorporates a thermal shutdown circuit. When the junction temperature (Tj) reaches 160C (typ.), the output transistors are turned off. After 50 s (typ.), the output transistors are turned on automatically. The IC has 20C of temperature hysteresis. TSD = 160C (target spec) TSD = 20C (target spec)
Overcurrent Protection Circuit (ISD)
The IC incorporates an overcurrent protection circuit to detect voltage flowing through the output transistors. The overcurrent threshold is 2.5 A (typ.). Currents flowing through the output transistors are monitored individually. If overcurrent is detected in at least one of the transistors, all transistors are turned off. The IC incorporates a timer to count the 50 s (typ.) for which the transistors are off. After the 50 s, the transistors are turned on automatically. If an overcurrent occurs again, the same operation is repeated. To prevent false detection due to glitches, the circuit turns off the transistors only when current exceeding the overcurrent threshold flows for 10 s or longer.
ILIM Output current 0 50 s (typ.) 10 s (typ.) Not detected 10 s (typ.) 50 s (typ.)
The target specification for the overcurrent limiter value (overcurrent threshold) is 2.5 A (typ.), and varies in a range from approximately 1.5 A to 3.5 A. These protection functions are intended only as a temporary means of preventing output short circuits or other abnormal conditions and are not guaranteed to prevent damage to the IC. - If the guaranteed operating ranges of this product are exceeded, these protection features may not operate and some output short circuits may result in the IC being damaged. The overcurrent protection feature is intended to protect the IC from temporary short circuits only. Short circuits persisting over long periods may cause excessive stress and damage the IC. Systems should be configured so that any overcurrent condition will be eliminated as soon as possible.
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Application Circuit
(Note 2) C3 C2 5V (Note 4) (Note 1) 24 V Stepping motor R1 R1 TB6562ANG OUT1B 17 OUT2B 14 PORT8 RSB 15 GND PORT9 VrefA VrefB 9 DAC output signal R2 16 GND 1,12,13,24 C1 23 VCC 7 Vcc 18 Vcc OUT1A 8 OUT2A 11 RSA 10 PORT4 PORT5 PORT6 PORT7 6 XA2 27 Phase B 26 XB1 25 XB2
VDD PORT1 PORT2 PORT3 3 SB
2 Vreg
22 OSC
4 Phase A 5 XA1
Note 1: A power supply capacitor should be connected between VCC and RSA (RSB) and as close as possible to the IC. Note 2: C2 and C3 should be connected as close as possible to S-GND. Note 3: When changing the Vref, a DAC output can be connected directly to the Vref pin. Note 4: The VCC pins (pin 23, pin 7, pin 18) should be shorted externally.
Caution on Use
* * The IC may be destroyed by short circuits between output pins, an output pin and the VCC pin, or an output pin and the ground pin. Exercise due care when designing output lines, VCC lines and ground lines. Install the product correctly. Otherwise, breakdown, damage and/or degradation to the product or equipment may result.
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Weight: 1.62 g (typ.)
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Notes on contents 1. Block Diagrams
Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for explanatory purposes.
2. Equivalent Circuits
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes.
3. Timing Charts
Timing charts may be simplified for explanatory purposes.
4. Maximum Ratings
The absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not be exceeded during operation, even for an instant. If any of these ratings are exceeded during operation, the electrical characteristics of the device may be irreparably altered, in which case the reliability and lifetime of the device can no longer be guaranteed. Moreover, any exceeding of the ratings during operation may cause breakdown, damage and/or degradation in other equipment. Applications using the device should be designed so that no maximum rating will ever be exceeded under any operating conditions. Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set forth in this document.
5. Application Circuits
The application circuits shown in this document are provided for reference purposes only. Thorough evaluation is required in the mass production design phase. In furnishing these examples of application circuits, Toshiba does not grant the use of any industrial property rights.
6. Test Circuits
Components in test circuits are used only to obtain and confirm device characteristics. These components and circuits are not guaranteed to prevent malfunction or failure in application equipment.
Handling of the IC
Ensure that the product is installed correctly to prevent breakdown, damage and/or degradation in the product or equipment.
Overcurrent protection and heat protection circuits
These protection functions are intended only as a temporary means of preventing output short circuits or other abnormal conditions and are not guaranteed to prevent damage to the IC. If the guaranteed operating ranges of this product are exceeded, these protection features may not operate and some output short circuits may result in the IC being damaged. The overcurrent protection feature is intended to protect the IC from temporary short circuits only. Short circuits persisting over long periods may cause excessive stress and damage the IC. Systems should be configured so that any overcurrent condition will be eliminated as soon as possible.
Counter-electromotive force
When the motor reverses or stops, the effect of counter-electromotive force may cause the current to flow to the power source. If the power supply is not equipped with sink capability, the power and output pins may exceed the maximum rating. The counter-electromotive force of the motor will vary depending on the conditions of use and the features of the motor. Therefore make sure there will be no damage to or operational problem in the IC, and no damage to or operational errors in peripheral circuits caused by counter-electromotive force.
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RESTRICTIONS ON PRODUCT USE
* The information contained herein is subject to change without notice.
030619EBA
* The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. * TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * TOSHIBA products should not be embedded to the downstream products which are prohibited to be produced and sold, under any law and regulations.
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