Diodes Incorporated AP2815AMMTR-G1-01

Overview

AP2815AMMTR-G1 from BCD Semiconductor is a 1.5A high-side power distribution switch with integrated N-channel MOSFET (R_DS(ON) = 60 mΩ @ 5V), enable control, and open-drain FLAG fault indicator. It operates from 2.7V to 5.5V, supports USB-compliant hot-plug power management, and integrates soft-start, over-current protection with fold-back, thermal shutdown, and under-voltage lockout (UVLO = 2.5 V). Designed for USB bus/self-powered hubs and notebook motherboard power rails.

For engineers reviewing the AP2815AMMTR-G1 datasheet, AP2815AMMTR-G1 pinout, AP2815AMMTR-G1 application, or AP2815AMMTR-G1 equivalent, key selection criteria include guaranteed 1.5A continuous load capability, active-low or active-high enable logic options, deglitched FLAG response time (5–15 ms), output discharge resistor (13–50 Ω) for auto-discharge variants, and MSOP-8 package thermal resistance (θ_JA = 150 °C/W).

Technical Context

The AP2815AMMTR-G1 implements a charge-pump–driven high-side N-MOSFET switch with integrated current-limiting circuitry that triggers fold-back during sustained short-circuit conditions. Its UVLO threshold (2.5 V ±0.2 V) ensures reliable turn-on only above valid input voltage, while thermal shutdown activates at 150 °C with 30 °C hysteresis.

FLAG output is an open-drain signal with 35–70 mV low-level voltage at 5 mA sink, requiring external pull-up; it asserts low within 10 ms (typ.) of over-current or over-temperature fault detection. Enable pin accepts logic-level inputs (V_ENH ≥ 1.6 V, V_ENL ≤ 1.0 V) and draws ≤1.0 µA.

Key Specifications

Pinout & Package

AP2815AMMTR-G1 is housed in an MSOP-8 package (4.7 × 3.1 mm, 0.65 mm pitch), optimized for space-constrained USB and portable applications. Thermal resistance θ_JA = 150 °C/W enables reliable 1.5A operation without forced airflow.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2051BDBVR and NIS5132MN, AP2815AMMTR-G1 uniquely combines USB-compliant R_DS(ON), integrated FLAG fault signaling, auto-discharge, and UVLO in a compact MSOP-8 package-enabling single-chip compliance with USB power delivery safety and sequencing requirements.

Availability

AP2815AMMTR-G1 is available at Aetrix Electronics and suitable for USB power management, notebook motherboard rail switching, and hot-plug peripheral power applications requiring stable component supply, long-term lifecycle support, and RoHS/Green compliance.

Supply support for AP2815AMMTR-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 and foundry partner, specializing in high-reliability, cost-optimized power management solutions for consumer, computing, and industrial markets.

The AP2815 product line targets USB-compliant, high-side load switching with integrated protection - designed specifically for space-constrained, thermally sensitive applications such as portable computing and peripheral docking systems.

FAQ

What is the logic polarity of the EN pin on AP2815AMMTR-G1?

The AP2815AMMTR-G1 uses the "A" variant designation, meaning its EN pin is active-high with V_ENH ≥ 1.6 V and V_ENL ≤ 1.0 V. This matches standard GPIO logic levels from microcontrollers and USB host controllers without level-shifting.

Does AP2815AMMTR-G1 require an external pull-up resistor on the FLAG pin?

Yes - FLAG is an open-drain output and must be pulled up externally (typically 4.7–10 kΩ to 3.3V or 5V) to generate a valid high-level signal. The internal deglitching ensures the output remains stable during brief transients before asserting low on confirmed OCP or OTP.

Can AP2815AMMTR-G1 drive capacitive loads up to 470 µF?

Yes - the datasheet confirms stable operation with C_OUT = 470 µF (Figure 24), and turn-off/fall time remains controlled even under full load. Soft-start and fold-back protection prevent inrush-induced stress regardless of output capacitance size.

Is the MSOP-8 package of AP2815AMMTR-G1 thermally adequate for 1.5A continuous operation?

Yes - with θ_JA = 150 °C/W and R_DS(ON) = 60 mΩ, power dissipation at 1.5A is ~135 mW, resulting in ~20°C junction rise above ambient. This stays well below the 150°C thermal shutdown threshold, even at 85°C ambient temperature.