参数资料
型号: LTC4101EG#PBF
厂商: Linear Technology
文件页数: 19/30页
文件大小: 0K
描述: IC CNTRLR BATT CHRG 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
LTC4101
OPERATION
The I LIM Decoder Block
The value of an external resistor connected from this pin
to GND determines one of four current limits that are used
for maximum charging current value. These limits provide
a measure of safety with a hardware restriction on charging
current which cannot be overridden by software.
Table 6. I LIM Trip Points and Ranges
The V LIM Decoder Block
The value of an external resistor connected from this pin
to GND determines one of ?ve voltage limits that are ap-
plied to the charger output value. These limits provide a
measure of safety with a hardware restriction on charging
voltage which cannot be overridden by software.
Table 7. V LI M Trip Points and Ranges (See Figure 5)
EXTERNAL
RESISTOR
CONTROLLED
CHARGING
EXTERNAL
RESISTOR
CONTROLLED
CHARGING
(R ILIM )
I LIM VOLTAGE
CURRENT RANGE GRANULARITY
(R ILIM )
I LIM VOLTAGE
CURRENT RANGE
GRANULARITY
Short to GND
10k ±1%
33k ±1%
Open (>250k,
or Short to V DD )
V ILIM < 0.09V DD
0.17V VDD < V ILIM
< 0.34V VDD
0.42V VDD < V ILIM
< 0.59V
0.66V VDD < V ILIM
0 < I < 1023mA
0 < I < 2046mA
0 < I < 3068mA
0 < I < 4092mA
1mA
2mA
4mA
4mA
Short to
GND
10k ±1%
33k ±1%
100k ±1%
V VLIM < 0.09V VCCP
0.17V VDD < V VLIM
< 0.34V VDD
0.42V VCCP < V VLIM
< 0.59V VDD
0.66V VDD < V VLIM
< 0.84V VDD
2900mV < V OUT
< 4240mV
2900mV < V OUT
< 4304mV
2900mV < V OUT
< 4432mV
2900mV < V OUT
< 4512mV
16mV
16mV
16mV
16mV
Open or
Tied to V DD
0.91V VDD < V VLIM
2900mV < V OUT
< 5504mV
16mV
V DD
AC_PRESENT
12.5k
33k
25k
4
V LIM
14
25k
ENCODER
V LIM [3:0]
R VLIM
25k
12.5k
4101 F05
Figure 5. Simpli?ed V LIM Circuit Concept (I LIM is Similar)
4101fa
19
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