参数资料
型号: ADM1276-3ACPZ-RL
厂商: Analog Devices Inc
文件页数: 10/48页
文件大小: 0K
描述: IC HOT SWAP CTLR PMBUS 20LFCSP
标准包装: 5,000
类型: 热交换控制器
应用: 通用
内部开关:
电流限制: 可调
电源电压: 2.95 V ~ 20 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-WQFN 裸露焊盘,CSP
供应商设备封装: 20-LFCSP-WQ(5x5)
包装: 带卷 (TR)
ADM1276
Data Sheet
Pin No.
14
15
16
17
18
N/A 1
Mnemonic
VOUT
GND
GATE
SENSE?
SENSE+
EP
Description
Output Voltage. This pin is used to read back the output voltage using the internal ADC. A 1 k? resistor should
be inserted in series between the source of a FET and the VOUT pin.
Ground Pin.
Gate Output Pin. This pin is the high-side gate drive of an external N-channel FET. This pin is driven by the FET
drive controller, which uses a charge pump to provide a pull-up current to charge the FET gate pin. The FET drive
controller regulates to a maximum load current by regulating the GATE pin. GATE is held low when the supply is
below UVLO.
Negative Current Sense Input Pin. A sense resistor between the SENSE+ pin and the SENSE? pin sets the analog
current limit. The hot swap operation of the ADM1276 controls the external FET gate to maintain the sense
voltage (V SENSE+ ? V SENSE? ). This pin also connects to the FET drain pin.
Positive Current Sense Input Pin. This pin connects to the main supply input. A sense resistor between the
SENSE+ pin and the SENSE? pin sets the analog current limit. The hot swap operation of the ADM1276 controls
the external FET gate to maintain the sense voltage (V SENSE+ ? V SENSE? ). This pin is also used to measure the supply
input voltage using the ADC.
Exposed Pad. The exposed pad is located on the underside of the LFCSP package. Solder the exposed pad to the
printed circuit board (PCB) to improve thermal dissipation. The exposed pad can be connected to ground.
1
N/A means not applicable.
Rev. C | Page 10 of 48
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