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RT9705

RichTek
Part Number RT9705
Manufacturer RichTek
Description 1A Power Multiplexer
Published Mar 31, 2015
Detailed Description Preliminary RT9705 80mΩ, 1A Power Multiplexer General Description The RT9705 is a dual input single output power mult...
Datasheet PDF File RT9705 PDF File

RT9705
RT9705

Overview
Preliminary RT9705 80mΩ, 1A Power Multiplexer General Description The RT9705 is a dual input single output power multiplexer specifically designed to provide seamless voltage transition between two independent power suppliers.
Equipped with two low RDS(ON) N-Channel MOSFETs driven by internal charge pump circuitry, the RT9705 is able to deliver 1A output current with only 80mV voltage drop.
Manual or auto switching mode is easily selected by two digital inputs D1 and D0.
When both D0 and D1 are selected high, the RT9705 enters shutdown mode and consumes minimum power making it ideal suitable for battery powered equipments.
A STAT pin with open drain output is provided to indicate the switch status.
A user-programmable up to 1.
25A current limit function is available for maximum safety in various applications.
The RT9705 provides comprehensive protection functions, including adjustable current limit, over temperature protection, soft start function for minimum inrush current, cross-conduction protection, and reverse conduction protection.
These features greatly simplify power multiplexer design.
The RT9705 is available in TSSOP-8 package requiring minimum board area and smallest components.
Ordering Information RT9705 Package Type C : TSSOP-8 Operating Temperature Range C : Commercial Standard P : Pb Free with Commercial Standard Note : RichTek Pb-free products are : −RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
−Suitable for use in SnPb or Pb-free soldering processes.
−100%matte tin (Sn) plating.
Features z Adjustable Current Limiting up to 1.
25A z Built-In (Typically 80mΩ) N-Channel MOSFET z Reverse Current Flow Blocking (no body diode) i.
e.
Output Can Be Forced Higher than Input (Off-State) z Low Supply Current: − 55μA Typical at Switch on State − Less than 0.
5μA Typical at Switch Off State z Guaranteed 1A Continuous Load Current z Wide Input Voltage Ranges: 2.
8V to 5.
5V z Open-Drain STAT Output z Hot Plug-In Application (...


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