BD9489F Datasheet, PDF (5/39 Pages) Rohm – DCDC converter with current mode

BD9489F
2.1 Pin Function
No.
Pin
Name
1
VCC
2
STB
3
OVP
4
UVLO
5
SS
6
PWM
7
CP
8
ADIM
9
RT
10
FB
11 ISENSE
12
GND
13 DIMOUT
14 GATE
15
CS
16 REG58
IN/OUT
In
In
In
In
Out
In
Out
In
Out
Out
In
-
Out
Out
In
Out
Function
Power supply pin
IC ON/OFF pin
Over voltage protection detection pin
Under voltage lock out detection pin
Slow start setting pin
External PWM dimming signal input pin
Charge timer for abnormal state
ADIM signal input pin
DC/DC switching frequency setting pin
Error amplifier output pin
LED current detection input pin
-
Dimming signal output for NMOS
DC/DC switching output pin
DC/DC output current detect pin,
OCP input pin
5.8V output voltage pin and shutdown
timer pin
Rating [V]
-0.3 to 36
-0.3 to 20
-0.3 to 20
-0.3 to 20
-0.3 to 7
-0.3 to 20
-0.3 to 7
-0.3 to 20
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
Datasheet
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TSZ22111・15・001
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TSZ02201-0F1F0C100250-1-2
29.Oct 2014 Rev.002