The AP2152AFGEG-7 from Diodes Incorporated is a dual-channel current-limited high-side power switch optimized for USB power distribution, hot-swap systems, and capacitive loads. Each channel includes an independent active-high enable input, current limiting, short-circuit protection, thermal protection, fault indication, and output-discharge control.
The device operates from a 2.7V to 5.5V input supply and supports a recommended maximum continuous load current of 0.5A per channel. The typical overload current limit is 0.7A per channel, with a specified range from 0.55A to 0.85A. Short-circuit response time is approximately 2μs.
At a 5V input, 0.5A load, and 25°C ambient temperature, the U-DFN3030-8 version provides 85mΩ typical and 105mΩ maximum on-resistance. At a 3.3V input, typical on-resistance is 105mΩ and the specified maximum is 125mΩ.
A controlled output rise time of approximately 0.6ms limits inrush current when hot-plugged or highly capacitive loads are enabled. Each channel includes an independent active-low open-drain FLG output for overcurrent and overtemperature reporting, with a typical 7ms blanking time to prevent false fault indications during short transients.
Reverse-current blocking prevents current from flowing from the output toward the input when the switch is disabled. With VIN at 0V and VOUT at 5V, typical reverse leakage is 0.01μA. An internal output-discharge path of approximately 100Ω discharges the external output capacitor when a channel is disabled.
Typical quiescent current is 115μA with both channels enabled and unloaded, while typical shutdown current is 0.1μA. The typical undervoltage-lockout threshold is 2.0V, and thermal shutdown activates at approximately 140°C with 25°C hysteresis.
The AP2152AFGEG-7 is supplied in an 8-terminal U-DFN3030 Type E package measuring approximately 3.0mm × 3.0mm × 0.6mm. Its exposed pad should be connected to PCB ground and thermal copper, but should not serve as the primary ground-current path. The marking code is AB, and the “-7” suffix specifies tape-and-reel packaging with 3,000 units per reel.
Key Specifications
- Manufacturer: Diodes Incorporated
- Manufacturer Part Number: AP2152AFGEG-7
- Device Type: Dual-Channel Current-Limited High-Side Power Switch
- Number of Channels: Two
- Enable Logic: Active High
- Input-Voltage Range: 2.7V to 5.5V
- Absolute Maximum Input Voltage: 6.5V
- Continuous Load Current: 0.5A Maximum per Channel
- Typical Current Limit: 0.7A per Channel
- Current-Limit Range: 0.55A to 0.85A
- Typical Short-Circuit Current: 0.7A per Channel
- Short-Circuit Response Time: 2μs
- Typical On-Resistance: 85mΩ at 5V and 0.5A
- Maximum On-Resistance: 105mΩ at 5V and 25°C
- Typical On-Resistance: 105mΩ at 3.3V and 0.5A
- Typical Quiescent Current: 115μA
- Typical Shutdown Current: 0.1μA
- Typical UVLO Threshold: 2.0V
- Typical Output Rise Time: 0.6ms
- Output-Discharge Resistance: Approximately 100Ω
- Reverse-Current Blocking: Supported
- Fault Outputs: Independent Open-Drain FLG per Channel
- Typical Fault Blanking Time: 7ms
- Typical Thermal-Shutdown Threshold: 140°C
- Typical Thermal Hysteresis: 25°C
- ESD Protection: 2kV HBM and 300V MM
- Operating Ambient Temperature: −40°C to +85°C
- Maximum Junction Temperature: +150°C
- Package: U-DFN3030-8 Type E
- Package Dimensions: Approximately 3.0mm × 3.0mm × 0.6mm
- Device Marking: AB
- Mounting Type: Surface Mount
- Packaging: Tape and Reel
- Standard Reel Quantity: 3,000 Units
- Compliance: Lead-Free, RoHS-Compliant, and Green Halogen-Free Package
- Certifications: UL Recognized and IEC 60950-1 CB Scheme
Typical Applications
Suitable for USB power distribution, powered hubs, hot-plug modules, LCD televisions and monitors, set-top boxes, residential gateways, laptops, desktops, servers, printers, and docking stations. Load current, capacitance, PCB thermal performance, and fault-condition power dissipation should be verified in the final design.
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