参数资料
| 型号： | LTC4100EG#TR |
| 厂商： | Linear Technology |
| 文件页数： | 19/30页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER SMART BATTERY 24-SSOP |
| 标准包装： | 1,800 |
| 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： | 带卷 (TR) |
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LTC4100
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
EXTERNAL CONTROLLED
RESISTOR CHARGING
(R ILIM ) I LIM VOLTAGE CURRENT RANGE GRANULARITY
Short to GND V ILIM < 0.09V DD 0 < I < 1023mA 1mA
10k ±1% 0.17V VDD < 0 < I < 2046mA 2mA
V ILIM < 0.34V VDD
The Voltage DAC Block
Note that the charger output voltage is offset by V REF .
Therefore, the value of V REF is subtracted from the
SMBus ChargingVoltage() value in order for the output
voltage to be programmed properly (without offset). If the
ChargingVoltage() value is below the nominal reference
voltage of the charger, nominally 1.184V, the charger
output voltage is programmed to zero. In addition, if the
ChargingVoltage() value is above the limit set by the V LIM
pin, then the charger output voltage is set to the value
determined by the V LIM resistor and the VOLTAGE_OR bit
is set. These limits are demonstrated in Figure 6.
33k ±1%
Open (>250k,
or Short to V DD )
0.42V VDD <
V ILIM < 0.59V
0.66V VDD <
V ILIM
0 < I < 3068mA
0 < I < 4092mA
4mA
4mA
25
20
R VLIM = 33k
The V LIM Decoder Block
15
The value of an external resistor connected from this pin
to GND determines one of five 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.
10
5
0
0
5
10
15
20
25
30
35
Table 7. V LIM Trip Points and R anges (See Figure 5)
PROGRAMMED VALUE (V)
4100 F06
EXTERNAL
RESISTOR
(R VLIM )
V LIM VOLTAGE
CONTROLLED
CHARGING VOLTAGE
(V OUT ) RANGE GRANULARITY
NOTE: THE LTC4100 CAN BE PROGRAMMED WITH ChargingVoltage() FUNCTION VALUES
BETWEEN 1.184V AND 2.9V, HOWEVER, THE BATTERY CHARGER CONTROLLER OUTPUT
VOLTAGE MAY BE ZERO WITH PROGRAMMED VALUES BELOW 2.9V.
Short to
GND
10k ±1%
33k ±1%
100k ±1%
Open or
Tied to V DD
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
0.91V VDD < V VLIM
2900mV < V OUT
< 8800mV
2900mV < V OUT
< 13104mV
2900mV < V OUT
< 17408mV
2900mV < V OUT
< 21712mV
2900mV < V OUT
< 28000mV
16mV
16mV
16mV
16mV
16mV
Figure 6. Transfer Function of Charger
19
For more information www.linear.com/LTC4100
4100fc
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| LTC4100EGTRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Smart Battery Charger Controller |
| LTC4101 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Smart Battery Charger Controller |
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| LTC4101EG#PBF | 功能描述:IC CNTRLR BATT CHRG 24-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LTC4101EG#TRPBF | 功能描述:IC CNTRLR BATT CHRG 24-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
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