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| BM78LXX 3-TERMINAL POSITIVE VOLTAGE REGULATORS Features Maximum Output Current of 100mA (Tc=25C) Internal Short-Circuit Current Limiting Internal Thermal Overload Protection 5% Output Tolerance SOP-8 Package Description BM78LXX regulators employ internal current-limiting and thermal-shutdown, making them essentially indestructible. They can deliver up to 100mA output current. Applications Bias Supply for Analog Circuit Post Regulator for Switching DC-DC Converter Pin Assignment SOP-8 (Top View) 1 2 3 4 VOUT GND GND NC VIN GND GND NC 8 7 6 5 Ordering Information Part Number Temperature Range Package BM78LXXS 0 ~ +125 SOP-8 Note: XX: Voltage Output. 05(5V); 06(6V), 08(8V), 09(9V), 12(12V) Typical Application V IN C IN 0.33uF (Note1) 1 BM78LXX Series 2 3 V OUT C OUT 0.1uF (Note2) Note 1: CIN is required if regulator is located an appreciable distance from power supply filter. Note 2: COUT is not needed for stability; however, it does improve transient response. Values of less than 0.1uF could cause instability. 2004/05/30 1 BM78LXX 3-TERMINAL POSITIVE VOLTAGE REGULATORS Absolute Maximum Ratings (Ta=25C, Unles Otherwise Specified) Characteristic Input Voltage Power Dissipation Operating Temperature Storage Temperature Junction Temperature Thermal Resistance Symbol VIN PD Topr Tstg Tj Rth(j-a) Rating 40 SOP-8 770 -30 to 85 -55 to 150 150 208 Unit V mW o C o C o C o C/W Schematic Diagram & Equivalent Circuit Schematic Diagram Equivalent Circuit VIN Input 1 Series Pass Element Current Generator SOA Protection Output 3 Starting Circuit Reference Voltage Error Amplifier Thermal Protection VOUT GND 2 BM78L05 Electrical Characteristics VIN=10V, IOUT=40mA, CIN=0.33uF, COUT=0.1uF, 0CTj125C (unless otherwise specified) Symbol Parameter Tj=25C VO Output Voltage 1mAIOUT70mA 7VVIN20V, 1mAIOUT40mA Regline Line Regulation Tj=25C, 7VVIN20V Tj=25C, 8VVIN20V Conditions BM78L05 Min 4.75 4.75 Typ 5 5 15 15 Max 5.25 5.25 150 100 V Units mV 2004/05/30 2 BM78LXX 3-TERMINAL POSITIVE VOLTAGE REGULATORS BM78L05 Min o Symbol Regload IB IB VN RR VD RO ISC TCVO Parameter Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Average Temperature Coefficient of Output Voltage Conditions Tj=25C, 1mAIOUT100mA Tj=25C, 1mAIOUT40mA IOUT=5mA, Tj=25C 8VVIN20V, Tj=25 C o Typ 11 5 3.9 40 49 1.7 17 1.5 - Max 60 30 6 1.5 0.1 2.5 2 0.6 Units mV mA mA uVrms dB V m A mV/C 1mAIOUT40mA, Tj=25 C 10Hzf100KHz, Tj=25C 8VVIN18V, f=120Hz, Tj=25 C o 41 - Tj=25C, IOUT=100mA f=1KHz VIN=10V, Tj=25C IOUT=5mA BM78L06 Electrical Characteristics VIN=11V, IOUT=40mA, CIN=0.33uF, COUT=0.1uF, 0CTj125C (unless otherwise specified) Symbol Parameter Tj=25C VO Output Voltage 1mAIOUT70mA 8VVIN22V, 1mAIOUT40mA Regline Regload IB IB VN RR VD RO ISC TCVO Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Average Temperature Coefficient of Output Voltage Tj=25C, 8VVIN22V Tj=25C, 9VVIN12V Tj=25C, 1mAIOUT100mA Tj=25C, 1mAIOUT40mA IOUT=5mA, Tj=25C 9VVIN22V, Tj=25 C o Conditions BM78L06 Min 5.7 5.7 o Typ 6 6 15 20 15 5 3.9 50 47 1.7 17 1.5 - Max 6.3 6.3 155 105 70 35 6 1.5 0.1 2.5 2 0.7 Units V mV mV mA mA uVrms dB V m A mV/C 1mAIOUT40mA, Tj=25 C 10Hzf100KHz, Tj=25C 9VVIN19V, f=120Hz, Tj=25 C o 39 - Tj=25C, IOUT=100mA f=1KHz VIN=10V, Tj=25C IOUT=5mA 2004/05/30 3 BM78LXX 3-TERMINAL POSITIVE VOLTAGE REGULATORS BM78L08 Electrical Characteristics VIN=14V, IOUT=40mA, CIN=0.33uF, COUT=0.1uF, 0CTj125C (unless otherwise specified) Symbol Parameter Tj=25C VO Output Voltage 1mAIOUT70mA 10.5VVIN23V, 1mAIOUT40mA Regline Regload IB IB VN RR VD RO ISC TCVO Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Average Temperature Coefficient of Output Voltage Tj=25C, 10.5VVIN23V Tj=25C, 11VVIN23V Tj=25C, 1mAIOUT100mA Tj=25C, 1mAIOUT40mA IOUT=5mA, Tj=25C 11VVIN23V, Tj=25 C o Conditions BM78L08 Min 7.6 7.6 o Typ 8 8 20 20 15 7 3.9 60 45 1.7 17 1.5 - Max 8.4 8.4 175 125 80 40 6 1.5 0.1 2.5 2 0.9 Units V mV mV mA mA uVrms dB V m A mV/C 1mAIOUT40mA, Tj=25 C 10Hzf100KHz, Tj=25C 12VVIN23V, f=120Hz, Tj=25 C o 37 - Tj=25C, IOUT=100mA f=1KHz Tj=25C IOUT=5mA BM78L09 Electrical Characteristics VIN=15V, IOUT=40mA, CIN=0.33uF, COUT=0.1uF, 0CTj125C (unless otherwise specified) Symbol Parameter Tj=25C VO Output Voltage 1mAIOUT70mA 11.4VVIN24V, 1mAIOUT40mA Regline Regload IB IB VN RR VD RO Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Tj=25C, 11.4VVIN24V Tj=25C, 12VVIN24V Tj=25C, 1mAIOUT100mA Tj=25C, 1mAIOUT40mA IOUT=5mA, Tj=25C 12VVIN24V, Tj=25 C o Conditions BM78L09 Min 8.55 8.55 o Typ 9 9 80 20 17 8 3.9 65 44 1.7 17 Max 9.45 9.45 200 160 90 45 6 1.5 0.1 2.5 - Units V mV mV mA mA uVrms dB V m 1mAIOUT40mA, Tj=25 C 10Hzf100KHz, Tj=25C 12VVIN24V, f=120Hz, Tj=25 C o 36 - Tj=25C, IOUT=100mA f=1KHz 2004/05/30 4 BM78LXX 3-TERMINAL POSITIVE VOLTAGE REGULATORS ISC TCVO Short Circuit Current Average Temperature Coefficient of Output Voltage Tj=25C IOUT=5mA 1.5 2 1 A mV/C BM78L12 Electrical Characteristics VIN=19V, IOUT=40mA, CIN=0.33uF, COUT=0.1uF, 0CTj125C (unless otherwise specified) Symbol Parameter Tj=25C VO Output Voltage 1mAIOUT70mA 14.5VVIN27V, 1mAIOUT40mA Regline Regload IB IB VN RR VD RO ISC TCVO Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Average Temperature Coefficient of Output Voltage Tj=25C, 14.5VVIN27V Tj=25C, 16VVIN27V Tj=25C, 1mAIOUT100mA Tj=25C, 1mAIOUT40mA IOUT=5mA, Tj=25C 16VVIN27V, Tj=25 C o Conditions BM78L12 Min 11.4 11.4 o Typ 12 12 120 100 20 10 3.9 80 41 1.7 17 1.5 - Max 12.6 12.6 250 200 100 50 6 1.5 0.1 2.5 2 1.4 Units V mV mV mA mA uVrms dB V m A mV/C 1mAIOUT40mA, Tj=25 C 10Hzf100KHz, Tj=25C 15VVIN25V, f=120Hz, Tj=25 C o 36 - Tj=25C, IOUT=100mA f=1KHz Tj=25C IOUT=5mA Test Circuits VIN 1 BM78LXX Series 2 3 VOUT VIN CIN 1 BM78LXX Series 2 3 270pF V OUT VIN -+ 1 BM78L05 Series 2 3 V OUT CIN 0.33uF COUT 0.1uF 0.33uF RL + DC 9V 100 VOUT 0V RL DC Parameter Load Regulation Ripple Rejection 2004/05/30 5 BM78LXX 3-TERMINAL POSITIVE VOLTAGE REGULATORS Application Circuits Constant Current Regulator Circuit for Increasing Output Voltage V IN 1 BM78LXX Series 2 3 VOUT VIN 1 BM78LXX Series IB 2 3 VOUT 0.33uF R1 IR1 0.1uF 10uF 0.33uF R1 R2 0.1uF 10uF VOUT=VOUT(IC)+VZ I1=VOUT(IC)/R1 VOUT=VOUT(IC)(1+R2/R1)+R2*IB Adjustable Output Regulator High Output Current with Short-circuit Protection V IN 1 BM78LXX Series IB 2 3 0.1uF 10uF V OUT V IN R1 Q2 Rsc Q1 1 0.33uF + BM78LXX Series 2 3 VOUT R1 R2 0.33uF 0.1uF 10uF VOUT=VOUT(IC)(1+R2/R1) R1VBE1/IB(max) RSC=VBE2/ISC, ISC: Short-Circuit Current 2004/05/30 6 BM78LXX 3-TERMINAL POSITIVE VOLTAGE REGULATORS Characteristics Curve Ripple Rejection 70 60 Current Cut-off Grid Voltage VO Ripple Rejection (dB).. . 40 30 20 10 0 10 100 1000 10000 100000 1000000 Vin=(4.5+Vout(ic))VDC+3.5Vrms Iout=40mA Tj=25oC Output Voltage (V) 50 Tj 0.0 o C 0.5 1.0 1.5 2.0 Frequency (Hz) Output Current (A) Worst Case Power Dissipation (TO-92 Package) 400 2 Output Voltage as a Function of Junction Temperature Output Current (mA) 300 1 Output Voltage (V) 200 0 100 -1 Io=5mA 0 0 5 10 15 20 25 30 35 -2 0 50 100 150 o 200 Vinput-Voutput Voltage (V) Junction Temperature ( C) Load Transient Response 3.0 2.5 100 50 0 Load Current (mA) Voltage Range Output Voltage Deviation (V).. . VO 2.0 1.5 1.0 0.5 0.0 -0.5 -1.0 0 5 10 15 20 25 30 35 40 45 Vin=Vout(ic)+5V o Tj=25 C 50 0 5 10 15 20 25 30 35 Time (uS) Voutput (V) Vinput-Voutput (V) 2004/05/30 7 BM78LXX 3-TERMINAL POSITIVE VOLTAGE REGULATORS SOP-8 (S) Dimension A G DIM A B C D E F G H I J K L M N O Min. 4.85 3.85 5.80 1.22 0.37 3.74 1.45 4.80 0.05 0.30 0.19 0.37 0.23 0.08 0.00 Max. 5.10 3.95 6.20 1.32 0.47 3.88 1.65 5.10 0.20 0.70 0.25 0.52 0.28 0.13 0.15 8 B 7 6 5 C 4 J H I Pin1 Index 2 3 D E Part A K L N O Part A M *: Typical, Unit: mm F 8-Lead SO-8 Plastic Surface Mounted Package 2004/05/30 8 BM78LXX 3-TERMINAL POSITIVE VOLTAGE REGULATORS Soldering Methods 1. Storage environment: Temperature=10oC~35oC Humidity=65%15% 2. Reflow soldering of surface-mount devices Figure 1: Temperature profile tP TP Ramp-up TL Tsmax Temperature tL Critical Zone TL to TP Tsmin tS Preheat Ramp-down 25 t 25oC to Peak Time Profile Feature Average ramp-up rate (TL to TP) Preheat - Temperature Min (Tsmin) - Temperature Max (Tsmax) - Time (min to max) (ts) Tsmax to TL - Ramp-up Rate Time maintained above: - Temperature (TL) - Time (tL) Peak Temperature (TP) Time within 5oC of actual Peak Temperature (tP) Ramp-down Rate Time 25oC to Peak Temperature 3. Flow (wave) soldering (solder dipping) Products Pb devices. Pb-Free devices. Sn-Pb Eutectic Assembly <3 C/sec 100oC 150oC 60~120 sec <3oC/sec 183oC 60~150 sec 240oC +0/-5oC 10~30 sec <6oC/sec <6 minutes o Pb-Free Assembly <3oC/sec 150oC 200oC 60~180 sec <3oC/sec 217oC 60~150 sec 260oC +0/-5oC 20~40 sec <6oC/sec <8 minutes Peak temperature 245 C 5 C o o Dipping time 5sec 1sec 5sec 1sec 260 C +0/-5 C o o 2004/05/30 9 |
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