LTC4002_15 Datasheet, PDF (5/16 Pages) Linear Technology – Standalone Li-Ion Switch Mode Battery Charger

LTC4002
TYPICAL PERFOR A CE CHARACTERISTICS T_A = 25°C, V_CC = 10V unless otherwise noted.
Oscillator Frequency vs V_CC
510
Undervoltage Lockout Threshold
vs Temperature
8
V_CC RISING
LTC4002-8.4
7
CHRG Pin Output Low Voltage
vs V_CC
150
I_LOAD = 1mA
500
6
140
490
5
10
15
20
25
V_CC (V)
4002 G04
CHRG Pin Output Low Voltage
vs Temperature
180
I_LOAD = 1mA
5
LTC4002-4.2
4
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
4002 G05
CHRG Pin Weak Pull-Down
Current vs Temperature
29
V_CHRG = 8V
130
5
10
15
20
25
V_CC (V)
4002 G06
CHRG Output Pin Weak Pull-Down
Current vs V_CC
28
V_CHRG = 8V
140
25
25
100
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
4002 G07
Recharge Voltage Offset
Per Cell from Full Charged
Voltage vs Temperature
190
21
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
4002 G08
Recharge Voltage Offset from Full
Charged Voltage vs V_CC
160
LTC4002-4.2
22
5
10
15
20
25
V_CC (V)
4002 G09
Recharge Voltage Offset from Full
Charged Voltage vs V_CC
320
LTC4002-8.4
150
150
300
110
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
4002 G10
140
5
10
15
20
25
V_CC (V)
4002 G11
280
5
10
15
20
25
V_CC (V)
4002 G12
4002f
5