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BD8967FVM Datasheet(PDF) 2 Page - Rohm |
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BD8967FVM Datasheet(HTML) 2 Page - Rohm |
2 / 14 page BD8967FVM Technical Note 2/13 www.rohm.com 2009.05 - Rev.A © 2009 ROHM Co., Ltd. All rights reserved. ● Electrical Characteristics ◎ (Ta=25℃, VCC=5V, EN=VCC 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 Output voltage VOUT 3.234 3.300 3.366 V ITH SInk current ITHSI 10 20 - μA VADJ=H ITH Source Current ITHSO 10 20 - μA VADJ=L UVLO threshold voltage VUVLO1 3.90 4.10 4.30 V VCC=4.5→0V UVLO release voltage VUVLO2 3.95 4.20 4.50 V VCC=0→4.5V Soft start time TSS 0.5 1 2 ms Timer latch time TLATCH 0.5 1 2 ms ● Block Diagram, Application Circuit ● Pin No. & function table Pin No. Pin name PIN function 1 VOUT Output voltage detect pin 2 ITH GmAmp output pin/Connected phase compensation capacitor 3 EN Enable pin(Active High) 4 GND Ground 5 PGND Nch FET source pin 6 SW Pch/Nch FET drain output pin 7 PVCC Pch FET source pin 8 VCC VCC power supply input pin Fig.1 BD8967FVM View Fig.2 BD8967FVM Block Diagram 4 1 5 8 0.475 0.65 2.9 ±0.1 0.08 S 0.145 0.22 +0.05 -0.04 +0.05 -0.03 S 4 +6 -4 Max3.25(include.BURR) D 8 9 6 7 Lot No. 1PIN MARK VREF OSC UVLO TSD Current Sense/ Protect Driver Logic + Soft Start 8 7 6 5 4 2 1 3 R Q S EN VCC PVCC Input SW Output PGND GND ITH Vout VCC SLOPE Current Comp. Gm Amp. CLK VCC |
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