bd4140hfv ROHM Co. Ltd., bd4140hfv Datasheet - Page 2

• Manufacturer Part Number: bd4140hfv
• Description: Hi-performance Regulator Ic Series For Pcs Pgood Ic For Pc
• Manufacturer: ROHM Co. Ltd.

●Block Diagram
The recommended total
resistance value for R1
and R2 is within 300kΩ.
Please
double of MIN Delay
Time.
●Pin Layout
●Pin Function Table
© 2009 ROHM Co., Ltd. All rights reserved.
BD4140HFV
www.rohm.com
PIN No.
Bottom
set
1
2
3
4
5
C1
PGOOD
with
GND
V
CC
C1
R1
R2
PIN Name
PGOOD
GND
DLY
DLY
Vcc
FIN
1
2
3
IN
IN
4
5
0.5V
V
Reset Output Pin (Power Good Signal)
Ground Pin
Power Supply Input Pin
Watching Voltage Input Pin
Capacitor connected pin for setting delay time
Substrate
CC
3
UVLO
PIN Function
DELAY
2
2/8
GND
5
4
DLY
IN
1
PGOOD
R3 should be set not to be affected by
leakeage current （ MAX 5 μ A ） and
power current （5mA）.
VDD
R3
Technical Note
2009.04 - Rev.B