NCP1800 ON, NCP1800 Datasheet - Page 6

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

1000
0.48
0.44
0.40
0.36
0.32
0.28
0.24
100
0.2
10
2.5
R
ISEL
I REG +
CALCULATED
Figure 11. Full-Charge Current versus
2.7
Figure 9. Battery Drain Current versus
, CURRENT PROGRAMMING RESISTANCE (kW)
Current Programming Resistor
2.9
V
V
(R ISEL
CC
SNS
(1.19
= 0
, BATTERY VOLTAGE (V)
3.1
Battery Voltage
MEASURED
12e3)
R SNS )
3.3
100
250
200
150
100
50
0
3.5
5
V
V
Figure 13. Input Supply Current versus Input
SNS
SOVLO
6
3.7
V
I
V
V
R
= 4.7 V
REG
SNS
CC
SNS
SNS
7
Activated
V
CC
= 5 V
= 0 A
3.9
< V
= 3.6 V
= 0.4 W
, INPUT SUPPLY VOLTAGE (V)
8
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SOVLO
4.1
Supply Voltage
9
1000
NCP1800
10
6
11
1000
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.11
100
10
0
1
12
10
25
R
R
I PCHG +
ISEL
ISEL
13
50
Figure 12. V
versus Current Programming Resistor
, CURRENT PROGRAMMING RESISTANCE (kW)
, CURRENT PROGRAMMING RESISTANCE (kW)
14
75
Figure 10. Pre-Charge Current
(10
Programming Resistor
15
100
(1.19
EOC
R ISEL
125
16
MEASURED
/V
150 175
12e3)
FCHG
100
R SNS )
versus Current
V
V
R
200
CC
SNS
SNS
CALCULATED
= 5 V
= 2.5 V
= 0.4 W
225
V
R
CC
SNS
= 5 V
250
= 0.4 W
275
1000
300