ADPL83200

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Low Loss PowerPath Controller in a ThinSOT Package

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产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
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概述

  • Very Low Loss Replacement for Power Supply OR’ing Diodes
  • Minimal External Components
  • Automatic Switching Between DC Sources
  • Simplifies Load Sharing with Multiple Batteries
  • Low Quiescent Current: 11μA
  • 3V to 28V AC/DC Adapter Voltage Range
  • 2.5V to 28V Battery Voltage Range 
  • Reverse Battery Protection
  • Drives Almost Any Size MOSFET for a Wide Zange of Current Requirements
  • MOSFET Gate Protection Clamp
  • Manual Control Input
  • Low Profile (1mm) ThinSOT™ Package

The ADPL83200 controls an external P-channel MOSFET to create a near-ideal diode function for power switchover or load sharing. This permits highly efficient OR’ing of multiple power sources for extended battery life and low self-heating. When conducting, the voltage drop across the Metal-oxidesemiconductor field-effect transistor (MOSFET) is typically 20mV. For applications with a wall adapter or other auxiliary power source, the load is automatically disconnected from the battery when the auxiliary source is connected. Two or more ADPL83200s can be interconnected to allow load sharing between multiple batteries or charging multiple batteries from a single charger.

The wide supply operating range supports operation from one to six Li-Ion cells in series. The low quiescent current (11μA typical) is independent of the load current. The gate driver includes an internal voltage clamp for MOSFET protection.

The STAT pin can be used to enable an auxiliary P-channel MOSFET power switch when an auxiliary supply is detected. This pin may also be used to indicate to a microcontroller that an auxiliary supply is connected. The control (CTL) input enables the user to force the primary MOSFET off and the STAT pin low.

The ADPL83200 is available in a low-profile (1mm) ThinSOT package.

  • Cellular Phones 
  • Notebook and Handheld Computers 
  • Digital Cameras 
  • USB-Powered Peripherals 
  • Uninterruptible Power Supplies
  • Logic Controlled Power Switch
ADPL83200
Low Loss PowerPath Controller in a ThinSOT Package
ADPL83200 Typical Application ADPL83200 Block Diagram ADPL83200 Pin Configuration ADPL83200 Chip Illustration
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EVAL-ADPL83200

Evaluates: ADPL83200

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产品详情

Evaluation board EVAL-ADPL83200-IZ features the ADPL83200IS6, low-loss PowerPath™ controller. The controller is capable of automatically switching between primary and auxiliary power sources for a single output. The ADPL83200 circuit is intended for lower current loads.

The input supply voltage ranges from 2.5V to 36V. As initially configured with the default MOSFET, the ADPL83200 circuit's maximum input voltage is 18V. The ADPL83200 circuit current limit is 2A.

The primary power paths can be controlled with external logic applied to the CTL pins. PowerPath status can be monitored using the STAT pins. Evaluation of higher current or more complex sourcing systems can be accomplished by installing additional ICs, as well as paralleling the inputs and/or outputs using the optional supplied pads. Multiple standard Metal-oxide-semiconductor field-effect transistor (MOSFET) package options are also available on each circuit for evaluation convenience.
EVAL-ADPL83200
Evaluates: ADPL83200
EVAL-ADPL83200 Board Photo Angle View EVAL-ADPL83200 Board Photo Top View EVAL-ADPL83200 Board Photo Bottom View

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