Diodes Incorporated AP2815DMMTR-G1

Overview

AP2815DMMTR-G1 from BCD Semiconductor is a 1.5A high-side power distribution switch with active-low enable and open-drain fault flag, designed for USB-compliant hot-plug power control. It features 60mΩ R_DS(ON) at 5V, 2.7–5.5V operating range, integrated soft-start, over-current protection with fold-back, thermal shutdown, and under-voltage lockout (UVLO) at 2.2–2.7V.

For engineers reviewing the AP2815DMMTR-G1 datasheet, AP2815DMMTR-G1 pinout, AP2815DMMTR-G1 application, or AP2815DMMTR-G1 equivalent, this device serves as a compact, RoHS-compliant MSOP-8 solution for USB bus power management, notebook motherboard rail switching, and battery-charger circuit enable control where low quiescent current (65µA typ.) and deglitched fault reporting are critical.

Technical Context

The AP2815DMMTR-G1 integrates an N-channel MOSFET with charge pump gate drive to achieve low on-resistance while maintaining logic-level compatibility. Its active-low EN pin directly interfaces with USB host controllers without level-shifting, and the open-drain FLAG output asserts low after 5–15ms delay upon over-current or over-temperature events.

It implements fold-back current limiting (1.12A short-circuit current), UVLO hysteresis (0.2V), and reverse-current blocking (<1µA leakage when disabled). The device operates across –40°C to +85°C ambient and includes auto-discharge disable - distinguishing it from AP2815C variants - making it suitable for applications requiring controlled VOUT discharge only on explicit command.

Key Specifications

Pinout & Package

AP2815DMMTR-G1 is housed in an MSOP-8 package (3.0mm × 4.7mm, 0.65mm pitch), optimized for space-constrained USB ports and notebook power rails.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2051BDBVR and NIS5132MN3TXG, AP2815DMMTR-G1 uniquely combines MSOP-8 compactness, active-low EN, deglitched FLAG, and configurable auto-discharge disable - making it optimal for USB 2.0 hub and embedded host designs requiring precise fault visibility and minimal standby current.

Availability

AP2815DMMTR-G1 is available at Aetrix Electronics and suitable for USB power management, notebook motherboard rail control, and battery-charger circuit enable applications requiring stable component supply, long-term lifecycle support, and RoHS/Green compliance.

Supply support for AP2815DMMTR-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, safety-certified power management solutions for consumer, computing, and industrial markets.

The AP2815 product line delivers integrated high-side switches targeting USB-compliant hot-plug power distribution, with emphasis on low R_DS(ON), robust protection, and compact packaging for space-constrained host systems.

FAQ

What is the function of the FLAG pin on AP2815DMMTR-G1?

The FLAG pin is an open-drain output that actively pulls low (≤70mV at 5mA sink) to signal over-current or over-temperature faults. It features built-in deglitching with 5–15ms delay to reject transient spikes, and requires an external pull-up resistor to the local controller's I/O voltage. This enables direct interfacing with USB host controllers for real-time fault reporting without additional logic.

Does AP2815DMMTR-G1 support automatic VOUT discharge when disabled?

No. AP2815DMMTR-G1 is the "D" variant - Active Low without Auto Discharge. Unlike AP2815C (Active Low with Auto Discharge), it does not integrate an internal discharge FET. When EN is deasserted, VOUT remains floating unless externally discharged via a resistor or dedicated circuit, preserving downstream capacitor energy for fast re-enable scenarios.

What is the minimum input voltage required for reliable operation?

The AP2815DMMTR-G1 has an under-voltage lockout (UVLO) threshold of 2.2–2.7V. Operation is guaranteed only above 2.7V (rising edge), with 0.2V hysteresis ensuring stable turn-on/turn-off behavior. Below 2.2V, the internal charge pump cannot sustain gate drive, forcing the MOSFET into hard-off state regardless of EN state.

Can AP2815DMMTR-G1 be used in 3.3V systems?

Yes. Its 2.7–5.5V operating range fully covers 3.3V nominal supplies. At VIN=3.3V, R_DS(ON) increases to ~85mΩ (per Figure 9), still supporting 1.5A continuous load with ≤128mV drop. Enable thresholds (VENL ≤1.0V, VENH ≥1.6V) remain compatible with 3.3V logic families, and FLAG output functions correctly with 3.3V pull-up.