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BD8964FVM Datasheet(PDF) 3 Page - Rohm |
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BD8964FVM Datasheet(HTML) 3 Page - Rohm |
3 / 25 page 3/21 BD8964FVM Datasheet www.rohm.com ©2012 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 TSZ02201-0J3J0AJ00050-1-2 22.Jan.2015 Rev.003 Absolute Maximum Ratings Parameter Symbol Rating Unit VCC Voltage VCC -0.3 to +7 (Note 1) V PVCC Voltage PVCC -0.3 to +7 (Note 1) V EN Voltage VEN -0.3 to +7 V SW, ITH Voltage VSW, VITH -0.3 to +7 V Power Dissipation 1 Pd1 0.38 (Note 2) W Power Dissipation 2 Pd2 0.58 (Note 3) W Operating Temperature Range Topr -25 to +85 °C Storage Temperature Range Tstg -55 to +150 °C Maximum Junction Temperature Tjmax +150 °C (Note 1) Pd should not be exceeded. (Note 2) Reduced by 3.1mW/°C over Ta=25°C. (Note 3) Reduced by 4.7mW/°C over Ta=25°C, Mounted on 1 layer 70mmx70mmx1.6mm Glass Epoxy PCB. Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. Recommended Operating Conditions (Ta=25°C) Parameter Symbol Limit Unit Min Typ Max VCC Voltage VCC (Note 4) 4.0 (Note 5) 5.0 5.5 V PVCC Voltage PVCC (Note 4) 4.0 (Note 5) 5.0 5.5 V EN Voltage VEN 0 - VCC V Output Voltage Setting Range VOUT 1.0 - 1.8 V SW Average Output Current ISW (Note 4) - - 1.2 A (Note 4) Pd should not be exceeded. (Note 5) In case of setting the output voltage to 1.6V or more, VCCMin= VOUT +1.3V Electrical Characteristics (Ta=25°C, VCC=5V, VEN=VCC, R1=20kΩ, R2=10kΩ unless otherwise specified.) Parameter Symbol Min Typ Max Unit Conditions Standby Current ISTB - 0 10 μA EN=GND Bias Current ICC - 250 450 μA EN Low Voltage VENL - GND 0.8 V Standby mode EN High Voltage VENH 2.0 VCC - V Active mode EN Input Current IEN - 1 10 μA VEN=5V Oscillation Frequency fOSC 0.8 1 1.2 MHz Pch FET ON-Resistance RONP - 350 600 mΩ PVCC=5V Nch FET ON-Resistance RONN - 250 500 mΩ PVCC=5V ADJ Voltage VADJ 0.78 0.80 0.82 V ITH Sink Current ITHSI 10 20 - μA VADJ=H ITH Source Current ITHSO 10 20 - μA VADJ=L UVLO Threshold Voltage VUVLO1 3.6 3.8 4.0 V VCC=4V to 0V UVLO Release Voltage VUVLO2 3.65 3.90 4.2 V VCC=0V to 4V Soft Start Time tSS 0.5 1 2 ms VADJ=H Timer Latch Time tLATCH 1 2 3 ms SCP/TSD operated |
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