参数资料
型号: LTC4009IUF-2#PBF
厂商: Linear Technology
文件页数: 6/28页
文件大小: 0K
描述: IC CHARGER BATTERY MC 20-QFN
标准包装: 91
功能: 充电管理
电池化学: 多化学
电源电压: 6 V ~ 28 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-WFQFN 裸露焊盘
供应商设备封装: 20-QFN 裸露焊盘(4x4)
包装: 管件
LTC4009
LTC4009-1/LTC4009-2
TYPICAL PERFORMANCE CHARACTERISTICS
(T A = 25°C unless otherwise noted. D IN = SSB44, L = IHLP-2525 6.8μH)
Battery Load Dump
Charge Current Accuracy
Charge Current Line Regulation
CLP = 20V
TIME (1ms/DIV)
LOAD
STATE
2A
1A
DISCONNECT
V OUT = 12.3V
12.1V               1A
3A
RECONNECT
4009 G06
5
4
3
2
1
0
–1
DCIN = 24V
R PROG = 35.7k
R SENSE = 33m
R IN = 3.01k
DCIN = 12V
R PROG = 26.7k
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
BAT = 6V
R SENSE = 33m
R IN = 3.01k
I CHG = 1A
I CHG = 2A
I CHG = 3A
–2
0
2
4
6
8 10 12 14 16 18 20 22 24
–0.5
5
10
15
20
25
BAT (V)
4009 G15
DCIN (V)
4009 G07
3.5
Charge Current Load Regulation
3.0
Input Current Limit
PWM Soft-Start
3.0
2.5
2.0
I CHG = 3A
I CHG = 2A
2.5
2.0
1.5
I IN
I CHG
I CHG
2A/DIV
ITH
1V/DIV
R SENSE = 33m
R IN = 3.01k
1.5
1.0
0.5
0
–0.5
I CHG = 1A
DCIN = 20V
11.0 11.4
11.8 12.2
12.6
13.0
1.0
0.5
0
–0.5
–1.0
0
2.5A BULK CHARGE
2.1A INPUT CURRENT LIMIT
ICL STATE
0.5 1.0 1.5
2.0
2.5
PROG
1V/DIV
SHDN
5V/DIV
TIME (500μs/DIV)
4009 G10
BAT (V)
4009 G08
Gate Drive Non-Overlap
SYSTEM LOAD (A)
4009 G09
PWM Frequency vs Duty Cycle
600
I CHG = 750mA
BGATE
TGATE
500
400
300
200
TIME (80ns/DIV)
4009 G11
100
0
0
20
40 60
CLP = 6V
CLP = 12V
CLP = 20V
CLP = 25V
80
100
DUTY CYCLE (%)
4009 G12
4009fd
 
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