参数资料
| 型号： | LTC4101EG#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 12/30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 |
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LTC4101
OPERATION
Input, Output or Input/Output: A description of the data
supplied to or returned by the function.
ChargerSpecInfo() ('h11)
Description: The SMBus Host uses this command to read
the LTC4101’s extended status bits.
Purpose: Allows the System Host to determine the
speci?cation revision the charger supports as well as
other extended status information.
? SMBus Protocol: Read Word.
Output: The CHARGER_SPEC indicates that the LTC4101
supports Version 1.1 of the Smart Battery Charger
Speci?cation. The SELECTOR_SUPPORT indicates that
the LTC4101 does not support the optional Smart Battery
Selector Commands.
ChargerMode() ('h12)
Description: The SMBus Host uses this command to set
the various charger modes. The default values are set to
allow a Smart Battery and the LTC4101 to work in concert
without requiring an SMBus Host.
Purpose: Allows the SMBus Host to con?gure the charger
and change the default modes. This is a write only function,
but the value of the “mode” bit, INHIBIT_CHARGE may be
determined using the ChargerStatus() function.
? SMBus Protocol: Write Word.
Input: The INHIBIT_CHARGE bit allows charging to be
inhibited without changing the ChargingCurrent() and
ChargingVoltage() values. The charging may be resumed
by clearing this bit. This bit is automatically cleared when
power is reapplied or when a battery is reinserted.
The ENABLE_POLLING bit is not supported by the LTC4101.
Values written to this bit are ignored.
The POR_RESET bit sets the LTC4101 to its power-on
default condition.
The RESET_TO_ZERO bit sets the ChargingCurrent()and
ChargingVoltage() values to zero. This function ALWAYS
clears the ChargingVoltage() and ChargingCurrent() values
to zero even if the INHIBIT_CHARGE bit is set.
ChargerStatus() ('h13)
Description: The SMBus Host uses this command to read
the LTC4101’s status bits.
Purpose: Allows the SMBus Host to determine the status
and level of the LTC4101.
? SMBus Protocol: Read Word.
Output: The CHARGE_INHIBITED bit re?ects the status
of the LTC4101 set by the INHIBIT_CHARGE bit in the
ChargerMode() function.
The POLLING_ENABLED, VOLTAGE_NOTREG, and CUR-
RENT_NOTREG are not supported by the LTC4101.
The LTC4101 always reports itself as a Level 2 Smart
Battery Charger.
CURRENT_OR bit is set only when ChargingCurrent() is
set to a value outside the current regulation range of the
LTC4101. This bit may be used in conjunction with the
INHIBIT_CHARGE bit of the ChargerMode() and Charg-
ingCurrent() to determine the current capability of the
LTC4101. When ChargingCurrent() is set to I LIM + 1, the
CURRENT_OR bit will be set.
VOLTAGE_OR bit is set only when ChargingVoltage() is
set to a value outside the voltage regulation range of the
LTC4101. This bit may be used in conjunction with the
INHIBIT_CHARGE bit of the ChargerMode() and Charg-
ingVoltage() to determine the voltage capability of the
LTC4101. When ChargingVoltage() is set to the V LIM , the
VOLTAGE_OR bit will be set.
The RES_OR bit is set only when the SafetySignal resis-
tance value is greater than 95kΩ. This indicates that the
SafetySignal is to be considered as an open circuit.
The RES_COLD bit is set only when the SafetySignal re-
sistance value is greater than 28.5kΩ. The SafetySignal
indicates a cold battery. The RES_COLD bit will be set
whenever the RES_OR bit is set.
The RES_HOT bit is set only when the SafetySignal resis-
tance is less than 3150Ω, which indicates a hot battery.
The RES_HOT bit will be set whenever the RES_UR bit
is set.
4101fa
12
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