参数资料
| 型号： | LTC4100EG#TR |
| 厂商： | Linear Technology |
| 文件页数： | 17/30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
Controlled Charging Algorithm Overview
The following conditions must be met in order to allow
controlled charging to start on the LTC4100:
1. The ChargingVoltage() AND ChargingCurrent() function
must be written to non-zero values.
2. The SafetySignal must be RES_COLD, RES_IDEAL, or
RES_UR.
3. AC must be present. This is qualified by DCDIV > V ACP .
The following conditions will stop the controlled charging
algorithm and will cause the battery charger controller to
stop charging:
1. The ChargingCurrent() AND ChargingVoltage() functions
have not been written for T TIMEOUT .
2. The SafetySignal is registering RES_OR.
3. The SafetySignal is registering RES_HOT.
4. The AC power is no longer present. (DCDIV < V ACP )
5. ALARM_INHIBITED is set in the ChargerStatus()
function.
6. INHIBIT_CHARGE is set in the ChargerMode()
function. Clearing INHIBIT_CHARGE will cause the
LTC4100 to resume charging using the previous
V DD
ChargingVoltage() AND ChargingCurrent() function
values.
7. RESET_TO_ZERO is set in the ChargerMode() function.
8. CHGEN pin is pulled low by an external device. The
LTC4100 will resume charging using the previous
ChargingVoltage() AND ChargingCurrent() function
values, if the CHGEN pin is released by the external
device.
9. Insufficient DCIN voltage to charge the battery. The
LTC4100 will resume charging using the previous
ChargingVoltage() AND ChargingCurrent() function
values, when there is sufficient DCIN voltage to charge
the battery.
10. Writing a zero value to ChargingVoltage() function.
11. Writing a zero value to ChargingCurrent() function.
The SafetySignal Decoder Block
This block measures the resistance of the SafetySignal and
features high noise immunity at critical trip points. The low
power standby mode supports only battery presence SMB
charger reporting requirements when AC is not present.
The SafetySignal decoder is shown in Figure 4. The value
of R THA is 1.13k and R THB is 54.9k.
V DD
R THA
1.13k
16
THA
THA_SELB
MUX
TH_HI
AC_PRESENT
V DD
REF
HI_REF
LO_REF
TH_LO
33k
12.5k
25k
C SS
R THB
54.9k
15
THB
R SafetySignal
THB_SELB
SafetySignal
CONTROL
RES_OR
RES_COLD
V LIM
R VLIM
14
25k
25k
ENCODER
4
V LIM [3:0]
LATCH
RES_H0T
RES_UR
12.5k
Figure 4. SafetySignal Decoder Block
4100 F04
4100 F05
Figure 5. Simplified V LIM Circuit Concept (I LIM is Similar)
17
For more information www.linear.com/LTC4100
4100fc
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| LTC4101EG | 制造商:LINER 制造商全称:Linear Technology 功能描述:Smart Battery Charger Controller |
| 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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