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Product Detailed Parameters
- Description：IC PWR SWITCH P-CHAN 1:1 SOT25
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Type：USB Switch
- Number of Outputs：1
- Ratio - Input:Output：1:01
- Output Configuration：High Side
- Output Type：P-Channel
- Interface：On/Off
- Voltage - Load：2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd)：Not Required
- Current - Output (Max)：1A
- Rds On (Typ)：95mOhm
- Input Type：Non-Inverting
- Features：Status Flag
- Fault Protection：Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-25
- Package / Case：SC-74A, SOT-753
- Grade：-
- Qualification：-
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Overview
The AP2171WG-7 is a high-side power switch IC from Diodes Incorporated, designed for power distribution applications. It features a single P-channel output capable of handling up to 1 A continuous current with a maximum current limit of 1.5 A. The device operates within a supply voltage range of 2.7 V to 5.5 V and exhibits a maximum on-resistance of 115 mΩ. Key electrical parameters include a maximum turn-on time of 50 µs and a maximum turn-off time of 10 µs. It functions reliably across an operating temperature range of -40°C to +85°C.
Feature Summary
- Integrates fixed current limiting, overtemperature protection, reverse current blocking, and UVLO for comprehensive fault management.
- Provides a status flag output to indicate the operational state of the switch.
- Utilizes a non-inverting On/Off interface for straightforward control logic.
Applications
- USB 2.0 port power switching
- Peripheral power distribution in consumer electronics
- Battery-powered device load control
Procurement Notes
Verify the specific package designation against the datasheet, as suffixes may denote variations in tape-and-reel specifications or environmental compliance. Confirm RoHS status and SVHC declarations through official manufacturer documentation prior to integration. Ensure the ordering part number matches the required SOT-25-5 configuration and active product lifecycle status.
Selection Notes
Select this component for single-channel high-side switching requirements where low on-resistance and compact surface-mount packaging are priorities. The 1 A output rating suits moderate-load applications, while the integrated fault protections reduce external component count. Evaluate thermal performance under maximum load conditions to ensure operation remains within the specified junction temperature limits.
Part Context
This device belongs to the AP2171 series of USB power switches manufactured by Diodes Incorporated. The series focuses on providing robust power distribution solutions with integrated protection features. The WG-7 suffix typically indicates the SOT-25-5 package and reel packaging format, distinguishing it from other pin-compatible variants like the DWG or FMG packages.
Replacement Considerations
The AP2191DWG-7 is a documented alternative within the same family, offering similar functionality but potentially differing in pin count or specific package dimensions. Verify compatibility regarding interface signals and physical footprint before substitution.
