LTC1730ES8-4.2 Linear Technology, LTC1730ES8-4.2 Datasheet - Page 4

• Manufacturer Part Number: LTC1730ES8-4.2
• Description: IC BATT PULSE CHRGR LI-ION 8SOIC
• Manufacturer: Linear Technology

Specifications of LTC1730ES8-4.2

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 4.5 V ~ 12 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LTC1730-4/LTC1730-4.2
4
TYPICAL PERFOR A CE CHARACTERISTICS
0.50
0.45
0.40
0.35
0.30
0.25
0.20
50
45
40
35
30
25
20
–50
5
Trickle Charge Current vs Input
Supply Voltage
Internal Switch On-Resistance vs
Temperature
T A = 25 C
V
BAT
–25
6
= 4V
7
0
TEMPERATURE ( C)
25
300
250
200
150
100
8
V
50
CC
0
–50
Battery Recharge Threshold Offset
from V
(V)
9
V
50
CC
–25
= 6V
10
75
BAT
0
W
vs Temperature
100
11
1730 G01
1730 G05
25
TEMPERATURE ( C)
U
12
125
50
75
100 125 150
2.50
2.48
2.46
2.44
2.42
2.40
115
110
105
100
95
90
85
80
–50
–50
Trickle Charge Threshold Voltage
vs Temperature
Timer Accuracy vs Temperature
1730 G09
V
V
C
CC
CC
TIMER
–25
–25
= 6V
= 6V
= 0.1 F
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
50
50
75
75
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
–50
CHRG Pin Output Low Voltage vs
Temperature
100
100 125
1730 G02
1730 G06
–25
125
0
TEMPERATURE ( C)
25
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
50
45
40
35
30
25
20
–50
–50
Trickle Charge Current vs
Temperature
Overcurrent vs Temperature
V
R
50
V
CC
SEN
CC
–25
–25
= 6V
= 6V
= 0.1
75
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
100
1730 G08
25
25
125
50
50
75
75
sn1730 1730fs
100
100
1730 G07
1730 G03
125
125