MB3878 Fujitsu Media Devices, MB3878 Datasheet - Page 3

• Manufacturer Part Number: MB3878
• Description: DC/DC Converter IC for Charging
• Manufacturer: Fujitsu Media Devices

PIN DESCRIPTION
Pin No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
VCC (O)
Symbol
OUTC2
OUTC1
OUTD
VREF
GND
VCC
OUT
FB2
FB1
CTL
FB3
INC2
INE2
INE2
INE1
INE1
INC1
INC1
INE3
INC2
RT
VH
CS
I/O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
Current detection amplifier (Current Amp. 2) input pin.
Current detection amplifier (Current Amp. 2) output pin.
Error amplifier (Error Amp. 2) non-inverted input pin.
Error amplifier (Error Amp. 2) inverted input pin.
Error amplifier (Error Amp. 2) output pin.
Reference voltage output pin.
Error amplifier (Error Amp. 1) output pin.
Error amplifier (Error Amp. 1) inverted input pin
Error amplifier (Error Amp. 3) non-inverted input pin.
Current detection amplifier (Current Amp. 1) output pin.
With IC in standby mode, this pin is left open to prevent loss of current
through output voltage setting resistance. Set CTL pin to “H” level and
OUTD pin to “L” level.
Current detector amplifier (Current Amp. 1) input pin.
Current detector amplifier (Current Amp. 1) input pin.
Power supply control pin.
Setting the CTL pin low places the IC in the standby mode.
Error amplifier (Error Amp. 3) output pin.
Error amplifier (Error Amp. 3) inverted input pin.
Triangular-wave oscillation frequency setting resistor connection pin.
Power supply pin for reference power supply and control circuit.
Power supply pin for FET drive circuit (VH = Vcc
High-side FET gate drive pin.
Output circuit power supply pin.
Soft-start capacitor connection pin.
Ground pin.
Current detection amplifier (Current Amp. 2) input pin.
Descriptions
5 V).
MB3878
3