Datasheet

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