LTC3552-1 Linear Technology, LTC3552-1 Datasheet - Page 5

• Manufacturer Part Number: LTC3552-1
• Description: Standalone Linear Li-Ion Battery Charger and Dual Synchronous Buck Converter
• Manufacturer: Linear Technology

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TYPICAL PERFOR A CE CHARACTERISTICS
Battery Charger
600
500
400
300
200
100
700
400
350
650
600
550
500
450
0
–50
4
Charge Current vs Supply Voltage
Power FET “On” Resistance
vs Temperature
V
I
R
V
θ
BAT
IN
PROG
BAT
JA
4.5
–25
= 4.2V
= 40°C/W
= 100mA
= 4V
= 2k
5
W
0
TEMPERATURE (°C)
5.5
R
R
PROG
25
PROG
V
U
IN
6
(V)
= 10k
= 2k
50
6.5
75
7
100
7.5
35521 G10
35521 G12
125
8
4.16
4.14
4.12
4.10
4.08
4.06
4.04
600
500
200
400
300
100
0
–50
–50
Recharge Threshold Voltage
vs Temperature
Charge Current
vs Ambient Temperature
V
R
V
V
θ
IN
PROG
IN
BAT
JA
T
–25
A
= 5V
= 5V
–25
= 40°C/W
ONSET OF THERMAL REGULATION
= 4V
= 25°C Unless Otherwise Specifi ed.
= 10k
0
TEMPERATURE (°C)
TEMPERATURE (°C)
0
R
R
PROG
PROG
25
25
= 10k
= 2k
50
50
75
100
75
LTC3552-1
35521 G11
35521 G13
125
100
35521f
5