mb3843pfv Fujitsu Microelectronics, Inc., mb3843pfv Datasheet - Page 4

• Manufacturer Part Number: mb3843pfv
• Description: Lithium Ion Battery Charger Dc/dc Converter Ic High Precision With Constant-current Function
• Manufacturer: Fujitsu Microelectronics, Inc.

4
MB3813A/MB3833A/MB3843
Pin no.
PIN DESCRIPTION
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Symbol
VREF
GND
OUT
Vin1
Vin2
CTL
SEL
IN1
IN2
V
CS
RT
CT
FB
IN2
IN1
CC
I/O
O
O
O
I
I
I
I
I
I
I
I
Input voltage detector block (VLDET) input terminal
Current detector amplifier (Current Amp.) input terminal
Output voltage feedback input terminal
Error amplifier (Error Amp.2) inverted input terminal
Error amplifier (Error Amp.1) inverted input terminal
Error amplifier (Error Amp.1, 2 common) output terminal
Power supply control terminal
An “L” level signal input to the CTL terminal sets the IC in standby mode.
DC/DC converter charging current setting input terminal
Reference voltage output terminal
Output voltage switching terminal
“L” level output voltage : MB3813A 12.6 V
“H” level output voltage : MB3813A 12.3 V
Soft-start capacitor connection terminal
Triangular wave frequency setting resistor connection terminal
Triangular wave frequency setting capacitor connection terminal
Power supply terminal
Totem-pole output terminal
Ground terminal
MB3833A 8.4 V
MB3843
MB3833A 8.2 V
MB3843
Descriptions
4.2 V
4.1 V