BD9851EFV Datasheet, PDF (2/3 Pages) Rohm – 2ch switching regulator controller

Electrical characteristics (Unless otherwise noted: Ta=25˚C, Vcc=12V)
Parameter
Symbol Min. Typ. Max. Unit
VREF output voltage
VREF 2.475 2.500 2.525
V
Oscillating frequency
fosc
270
300
330
kHz
Error amplifier threshold voltage VINV
0.98 1.00 1.02
V
Gate drive ON resistance
RON
-
2.5
-
Ω
Low current consumption
Icc
-
2.5
-
mA
Conditions
IO=-0.1mA
RT=24kΩ, CT=220pF
STB=3V
Application Circuit
VOUT1
VCC
VCC
18
VREF
17
FB1
15
VREF
(2.5V)
Both CH
ON/OFF
16
INV1
VREF
1V
DTC1
13
FB2
6
2.3V
VOUT2
VREF
VREF
INV2
5
NON2
4
DTC2
7
RT
2
CT
3
OSC
SCP
14
Timer
Latch
BD9851EFV
19 STB
1 SEL1
PVCC1
12
VCC
OUT1
11
VOUT1
10^PGND
PVCC2
8
VCC
9
OUT2
VOUT2
GND
20