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Product Detailed Parameters
- Description：IC PWR SWITCH P-CHANNEL 1:1 6DFN
- 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)：90mOhm
- 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：U-DFN2018-6
- Package / Case：6-UFDFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The AP2171FMG-7 is a high-side power switch IC from Diodes Incorporated, designed for USB power distribution. It features a single output capable of delivering up to 1 A with a 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 110 mΩ. Key timing parameters include a maximum turn-on time of 50 µs and a maximum idle time of 10 µs. It is housed in a DFN-6 surface-mount package and supports an operating temperature range from -40°C to +85°C.
Feature Summary
- Integrates fixed current limiting, overtemperature protection, reverse current blocking, and UVLO for comprehensive fault management.
- Provides status flag indication via an open-drain output to signal active load conditions or fault states.
- Utilizes a P-channel topology with a simple active-high enable interface for straightforward digital control.
Applications
- USB hub power switching and port protection
- Peripheral power distribution in consumer electronics
- Battery-powered device load switching
Procurement Notes
Verify the specific suffix FMG corresponds to the DFN-6 package configuration required for your layout. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure thermal design accounts for the specified operating temperature range and power dissipation characteristics under maximum load conditions.
Selection Notes
Select this component when a single-channel high-side switch with integrated protection is needed for low-voltage applications. Compare against the AP2171SG-13 if an SOP-8 package is preferred, or the AP2171DWG-7 for SOT-25 availability. Consider the AP2176MPG-13 if dual-channel functionality is required instead of a single output.
Part Context
This part belongs to the AP2171 series of USB power switches manufactured by Diodes Incorporated. The series offers various package options including DFN, SOP, and SOT-25 to accommodate different board space constraints while maintaining consistent electrical performance standards for portable electronic devices.
Replacement Considerations
AP2171SG-7 (SOP-8 package variant)
FAQ
What is the function of the status flag pin?
The status flag provides an open-drain output that indicates whether the switch is enabled and conducting current or if a fault condition has occurred.
Does the AP2171FMG-7 support reverse current flow?
Yes, the device includes reverse current protection to prevent backflow from the load to the source when the switch is disabled.
