NCP1800 ON, NCP1800 Datasheet - Page 8

• Manufacturer Part Number: NCP1800
• Description: Single-Cell Lithium Ion Battery Charge Controller
• Manufacturer: ON

Set I
Conditioning Phase
Fault Modes:
1. Charger Low Output (V
2. Runaway Charger (V
3. Battery Removed (V
CHARGE
= I
REG
/10
SNS
CC
CC
Y
> V
> V
< V
OVLO
SOVLO
Figure 15. NCP1800 Charging Operational Flow Chart
UVLO
Set CFLG HIGH
)
V
V
V
)
Fault Mode
Fault Mode
)
CDIS
CDIS
SNS
OR
OR
< V
= LOW
= LOW
N
N
PCTH
Current Regulation Phase
Voltage Regulation Phase
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NCP1800
Y
Y
N
N
N
8
Set I
Set CFLG LOW
I
Set CFLG Low
V
V
V
SNS
Fault Mode
Fault Mode
SNS
CDIS
CDIS
CHARGE
< I
OR
OR
> V
= LOW
= LOW
REG
Y
N
N
REG
Y
= I
/10
REG
Y
Y
V
Fault Mode
CDIS
OR
= LOW
Y
Start
N