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| 型号： | LTC1473IGN#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH DVR PWRPATH DUAL16SSOP |
| 标准包装： | 2,500 |
| 系列： | PowerPath™ |
| 应用： | 手持/移动设备 |
| FET 型： | N 沟道 |
| 输出数： | 2 |
| 内部开关： | 无 |
| 延迟时间 - 开启： | 22µs |
| 延迟时间 - 关闭： | 1µs |
| 电源电压： | 4.75 V ~ 30 V |
| 电流 - 电源： | 100µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 带卷 (TR) |
LTC1473
PI N FU N CTIO N S
IN1 (Pin 1): Logic Input of Gate Drivers GA1 and GB1. IN1
is disabled when IN2 is high or DIODE is low.
IN2 (Pin 2): Logic Input of Gate Drivers GA2 and GB2. IN2
is disabled when IN1 is high or DIODE is low.
DIODE (Pin 3): “2-Diode Mode” Logic Input. DIODE over-
rides IN1 and IN2 by forcing the two back-to-back
external N-channel MOSFET switches to mimic two
diodes.
TIMER (Pin 4): Fault Timer. A capacitor connected from
this pin to GND programs the time the MOSFET switches
are allowed to be in current limit. To disable this function,
Pin 4 can be grounded.
V + (Pin 5): Input Supply. Bypass this pin with at least a 1 μ F
capacitor.
V GG (Pin 6): Gate Driver Supply. This high voltage supply
is intended only for driving the internal micropower gate
drive circuitry. Do not load this pin with any external
circuitry. Bypass this pin with at least 1 μ F.
SW (Pin 7): Open Drain of an internal N-Channel MOSFET
Switch. This pin drives the bottom of the V GG switching
regulator inductor which is connected between this pin
and the V + pin.
GND (Pin 8): Ground.
GA2, GB2 (Pins 11, 9): Switch Gate Drivers. GA2 and GB2
SAB2 (Pin 10): Source Return. The SAB2 pin is connected
to the sources of SW A2 and SW B2. A small pull-down
current source returns this node to 0V when the switches
are turned off.
SENSE – (Pin 12): Inrush Current Input. This pin should be
connected directly to the bottom (output side) of the low
value current sense resistor in series with the two input
power selector switch pairs, SW A1/B1 and SW A2/B2, for
detecting and controlling the inrush current into and out of
the power supply sources and the output capacitor.
SENSE + (Pin 13): Inrush Current Input. This pin should be
connected directly to the top (switch side) of the low value
current sense resistor in series with the two input power
selector switch pairs, SW A1/B1 and SW A2/B2, for
detecting and controlling the inrush current into and out of
the power supply sources and the output capacitor. Cur-
rent limit is invoked when (V SENSE + – V SENSE – ) exceeds
± 0.2V.
GA1, GB1 (Pins 16, 14): Switch Gate Drivers. GA1 and
GB1 drive the gates of the first back-to-back external
N-channel switches.
SAB1 (Pin 15): Source Return. The SAB1 pin is connected
to the sources of SW A1 and SW B1. A small pull-down
current source returns this node to 0V when the switches
are turned off.
drive the gates of the second back-to-back external
N-channel switches.
5
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| LTC1473LCGN | 功能描述:IC SWITCH DVR PWRPATH DUAL16SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC1473LCGN#PBF | 功能描述:IC SWITCH DVR PWRPATH DUAL16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC1473LCGN#TR | 功能描述:IC DRIVER SWITCH DUAL LV 16SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC1473LCGN#TRPBF | 功能描述:IC SWITCH DVR PWRPATH DUAL16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC1474CMS8 | 功能描述:IC REG BUCK ADJ 0.75A 8MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
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