参数资料
型号: LTC4100EG#PBF
厂商: Linear Technology
文件页数: 6/30页
文件大小: 0K
描述: IC SMART BATTERY CHARGER 24-SSOP
标准包装: 59
功能: 充电管理
电池化学: 智能电池
电源电压: 6 V ~ 28 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SSOP(0.209",5.30mm 宽)
供应商设备封装: 24-SSOP
包装: 管件
产品目录页面: 1341 (CN2011-ZH PDF)
LTC4100
TYPICAL PERFORMANCE CHARACTERISTICS
V gs = 0
INFET Response Time to
Reverse Current
V gs OF PFET (2V/DIV)
0
–0.5
–1.0
V OUT vs I OUT
350
300
PWM Frequency vs Duty Cycle
–1.5
250
V s OF PFET (5V/DIV)
–2.0
–2.5
200
V BAT = 12.6V
V s = 0V
I d = 0A
I d (REVERSE) OF
PFET (5A/DIV)
1.25μs/DIV
TEST PERFORMED ON DEMOBOARD
V IN = 15VDC V CHARGE = 12.6V
CHARGER = ON INFET = 1/2 Si4925DY
I CHARGE = <10mA 4100 G01
–3.0
–3.5
–4.0
–4.5 DCIN = 20V
–5.0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
OUTPUT CURRENT (A)
4100 G02
150
100
50
0
0
PROGRAMMED CURRENT = 10%
DCIN = 15V
DCIN = 20V
DCIN = 24V
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
DUTY CYCLE (V OUT /V IN )
4100 G03
Disconnect/Reconnect Battery
(Load Dump)
40
Battery Leakage Current
vs Battery Voltage
VDCIN = 0V
100
Efficiency at 19V V DCIN
V FLOAT
1V/(DIV)
3A STEP
1A STEP
1A STEP
35
30
25
95
90
16.8V
12.6V
20
15
85
LOAD
STATE
DISCONNECT
3A STEP
RECONNECT
10
5
80
LOAD CURRENT = 1A, 2A, 3A
DCIN = 20V
V FLOAT = 12.6V
4100 G04
0
0
5
10 15 20
BATTERY VOLTAGE (V)
25
30
4100 G05
75
0.50
1.00 1.50 2.00 2.50
CHARGING CURRENT (A)
3.00
4100 G06
V DD = 5V
100
95
Efficiency at 12.6V with 15V V DCIN
SMBus Accelerator Operation
V DD = 5V
5V C BUS = 200pF
T A = 25°C
Low Current Operation
0.5
TEMP = 27°C
0.4 DCIN = 15V
90
85
80
0V
LTC4100
R PULLUP = 15k
0.3
0.2
0.1
0
NO LOW
CURRENT
MODE
LOW
CURRENT
MODE
PROGRAMMED
CURRENT
75
0.50
1.00
1.50 2.00 2.50
3.00
–0.1
0
0.1
0.2
0.3
0.4
6
CHARGING CURRENT (A)
4100 G07
1μs/DIV
4100 G08
For more information www.linear.com/LTC4100
PROGRAMMED CURRENT (A)
4100 G09
4100fc
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