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Product Detailed Parameters
- Description：IC PWR SWITCH P-CHAN 1:1 8MSOP
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- 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)：1.5A
- Rds On (Typ)：95mOhm
- Input Type：Inverting
- Features：Load Discharge, 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：8-MSOP
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Grade：-
- Qualification：-
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Overview
The AP2181DM8G-13 is a single-channel, high-side power switch from Diodes Incorporated, designed for USB and hot-swap applications. It operates within a supply voltage range of 2.7V to 5.5V and delivers a continuous output current of 1.5A with a maximum on-resistance of 90mΩ. The device features an active-low enable input and includes integrated over-current limiting at 2.1A, thermal shutdown, and reverse current blocking. It utilizes a UDFN-6 surface-mount package and supports CMOS/TTL logic interfaces across an operating temperature range of -40°C to +85°C.
Feature Summary
- Integrated over-current and thermal protection with controlled rise time
- Active-low enable input compatible with standard logic levels
- Reverse current blocking capability for bidirectional isolation
- Fault flag output with 7ms deglitch blanking time
Applications
- USB port power switching and distribution
- Hot-swap circuit protection
- Battery-powered equipment load control
- Peripheral device power management
Procurement Notes
Verify the specific suffix 'DM8G' against the manufacturer's official datasheet to confirm the UDFN-6 package and RoHS compliance status. Ensure the active-low enable configuration matches the system design requirements. Cross-reference ordering codes with authorized distributors to avoid counterfeit components and confirm lead times.
Selection Notes
Select this component for single-channel applications requiring 1.5A load handling with low on-resistance. The active-low enable signal simplifies control logic integration. Consider the UDFN-6 package for compact board layouts. Verify that the 2.1A current limit threshold aligns with the protected load's surge requirements without nuisance tripping.
Part Context
This part belongs to the AP2181 family of single-channel current-limited power switches. It shares functional similarities with the AP2191, which offers an active-high enable option. The series is optimized for USB 2.0 compliance and provides essential protection features in small surface-mount packages suitable for portable electronics.
Replacement Considerations
AP2191DM8G-13: Requires inversion of the enable signal due to active-high logic. AP2181WG-7: Offers SOT-25 packaging with similar electrical characteristics but may require footprint adaptation.
