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BD9703T Datasheet(PDF) 2 Page - Rohm |
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BD9703T Datasheet(HTML) 2 Page - Rohm |
2 / 17 page BD9701FP/CP-V5/T/T-V5,BD9703FP/CP-V5/T/T-V5,BD9702CP-V5/T/T-V5 Technical Note 2/16 www.rohm.com 2009.04- Rev.B © 2009 ROHM Co., Ltd. All rights reserved. ● Absolute Maximum Ratings (Ta=25℃) Parameter Symbol Ratings Unit Supply Voltage (VCC-GND) VCC 36 V STBY-GND VSTBY 36 V OUT-GND VO 36 V INV-GND VINV 10 V Maximum Switching Current BD9701/BD9703 Iout 1.5 A BD9702 3 Power Dissipation TO252 Pd 0.8 (*1) W TO220 2 (*2) Operating Temperature Topr -40~+85 ℃ Storage Temperature Tstg -55~+150 ℃ *1 Without external heat sink, the power dissipation reduces by 6.4mW/℃ over 25℃. *2 Without external heat sink, the power dissipation reduces by 16.0mW/℃ over 25℃. Reduced by 160mW/℃, when mounted on Infinity size heatsink. ● Operating Conditions(Ta=-40~+85℃) Parameter Symbol Limit Unit MIN TYP MAX Input Voltage VCC 8.0 or Vo+3 (*3) - 35.0 V Output Voltage Vo 1.0 - 32 V *3The minimum value of an input voltage is the higher either 8.0V or Vo+3 ● Electrical Characteristics ○ BD9701FP/CP-V5/T/T-V5 (Unless otherwise noted, Ta=25℃,VCC=12V,Vo=5V,STBY=3V) Parameter Symbol Limit Unit Conditions MIN TYP MAX Output ON Resistance Ron - 1.0 1.5 Ω design guarantee Efficiency η - 86 - % Io=0.5A design guarantee Switching Frequency fosc 80 100 120 kHz Load Regulation ΔVOLOAD - 10 40 mV VCC=20V,Io=0.5~1.5A Line Regulation ΔVOLINE - 40 100 mV VCC=10~30V,Io=1.0A Over Current Protection Limit Iocp 1.6 - - A INV Pin Threshold Voltage VINV 0.98 1.00 1.02 V INV Pin Threshold Voltage Thermal Variation ΔVINV - ±0.5 - % Tj=0~85℃ design guarantee INV Pin Input Current IINV - 1 - μA VINV=1.0V STBY Pin Threshold Voltage ON VSTBYON 2.0 - 36 V OFF VSTBYOFF -0.3 - 0.3 V STBY Pin Input Current Istby 5 25 50 μASTBY=3V Circuit Current Icc - 4 12 mA Stand-by Current Ist - 0 5 μASTBY=0V This product is not designed to be resistant to radiation. |
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