NCP347 ON Semiconductor, NCP347 Datasheet - Page 2

• Manufacturer Part Number: NCP347
• Description: Positive Overvoltage Protection Controller
• Manufacturer: ON Semiconductor

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Wall Adapter - AC/DC
Protection
INPUT
1 mF
ESD
ENABLE /
Microprocessor
Protection
Negative
Core
10
1
4
5
IN
IN
IN
EN
NCP347
FLAG
2
0
OUT 6
OUT
NC
NC
V
REF
V
REG
7
8
9
3
V
LDO
1 M
Figure 1. Typical Application Circuit
Figure 2. Functional Block Diagram
REF
V
Bat
200 kHz
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V
V
REG
REF
OVLO
UVLO
Output Impedance = 200 k
NCP347
V
Bat
2
V
Generator
4.7 mF
Oscillator
Bat
Delay
D3
270 K
7011X/SM
DISABLE
3
2
1
UVLO
OVLO
8
CFLG
FAULT
V
ISEL
NCP1835B
CC
4
15 pF
VSNS
V2P8
GND
BAT
Power
5
EN
Charge
ON
Pump
6
7
9
10
100 nF
Block
ENABLE / Microprocessor
EN
Protection
0
Lithium BATTERY
V
ESD
V2P8
Bat
Driver
Gate
OUTPUT
Protection
60 mA
ESD
FLAG
10 V
EN