Diodes Incorporated AP2815AMM-G1

Overview

AP2815AMM-G1 from BCD Semiconductor is a 1.5A high-side power distribution switch with integrated N-channel MOSFET (R_DS(ON) = 60 mΩ @ 5 V), enable control, and open-drain FLAG fault indicator. It operates from 2.7 V to 5.5 V, delivers guaranteed continuous 1.5 A load current, and integrates soft-start, over-current protection with fold-back, thermal shutdown, and under-voltage lockout - designed for USB-compliant hot-plug power management in notebook motherboards and self-powered hubs.

For engineers reviewing the AP2815AMM-G1 datasheet, AP2815AMM-G1 pinout, AP2815AMM-G1 application, or AP2815AMM-G1 equivalent, this device supports precise current-limited USB port power control with deglitched fault reporting, logic-level enable compatibility (active-high with auto-discharge), and MSOP-8 packaging for space-constrained board layouts.

Technical Context

The AP2815AMM-G1 implements a charge-pump–driven high-side N-MOSFET switch with programmable current limiting (1.65–2.8 A) and fold-back short-circuit response. Its UVLO threshold is 2.2–2.7 V with 0.2 V hysteresis, and thermal shutdown activates at 150 °C with 30 °C hysteresis.

FLAG output provides open-drain fault signaling with 5–15 ms delay after over-current or over-temperature events; enable pin accepts logic-level inputs (V_ENH ≥ 1.6 V, V_ENL ≤ 1.0 V), and reverse current is blocked (<1 µA) when disabled.

Key Specifications

Pinout & Package

AP2815AMM-G1 is housed in an MSOP-8 package (4.7 × 3.1 mm, 0.65 mm pitch), optimized for compact USB port power routing on dense PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side load switch applications.

Compared with TPS2051BDBVR and NIS5132MN, AP2815AMM-G1 uniquely combines USB-compliant soft-start, deglitched FLAG reporting, and auto-discharge in MSOP-8 - reducing BOM count and firmware complexity for USB host port management.

Availability

AP2815AMM-G1 is available at Aetrix Electronics and suitable for USB power management, notebook motherboard design, and hot-plug peripheral interface applications requiring stable component supply and RoHS-compliant Green packaging.

Supply support for AP2815AMM-G1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

BCD Semiconductor Manufacturing Limited is a Shanghai-based analog and power IC designer specializing in high-efficiency power management solutions for consumer, computing, and industrial markets.

The AP2815 product line targets USB-compliant high-side load switching with integrated protection - engineered specifically for space-constrained, thermally sensitive host platforms like ultrabooks and embedded controllers.

FAQ

What is the purpose of the auto-discharge feature in AP2815AMM-G1?

The auto-discharge function actively pulls VOUT to GND through an internal 13–50 Ω resistor when EN is deasserted. This safely discharges downstream capacitance (e.g., hub port decoupling caps) within milliseconds, preventing residual voltage from back-feeding into upstream sources or causing unsafe hot-plug conditions during cable removal.

Does AP2815AMM-G1 support USB Battery Charging (BC1.2) specification?

Yes - its guaranteed 1.65 A minimum current limit, 60 mΩ R_DS(ON), soft-start, and FLAG fault signaling align with BC1.2 DCP/CDP detection and power delivery requirements. The device enables compliant current sourcing while allowing host firmware to respond to over-current events via FLAG without resetting the USB controller.

Can AP2815AMM-G1 be used with 3.3 V logic-level enable signals?

Yes - the EN pin accepts logic-high inputs as low as 1.6 V (min), making it fully compatible with 3.3 V CMOS outputs. Its V_ENL threshold is ≤1.0 V, ensuring clean low-state recognition even with TTL-compatible drivers or noisy PCB environments.

How does the fold-back current limiting differ from constant-current limiting in AP2815AMM-G1?

Upon short-to-GND detection, AP2815AMM-G1 reduces output current from the initial 1.65–2.8 A limit to ~1.12 A (fold-back level). This lowers power dissipation in the MOSFET during sustained faults, preventing thermal runaway and enabling safe operation until host firmware disables the channel via EN - unlike constant-current limiters that maintain full current indefinitely.