Diodes Incorporated AP2815BMM-G1

Overview

AP2815BMM-G1 from BCD Semiconductor is a high-side power distribution switch with integrated N-channel MOSFET, charge pump, over-current/temperature protection, and deglitched open-drain FLAG output. It delivers 1.5A continuous load capability, 60mΩ R_DS(ON) at 5V, and operates across 2.7–5.5V input range-designed specifically for USB-compliant hot-plug power management in notebook and motherboard applications.

For engineers reviewing the AP2815BMM-G1 datasheet, AP2815BMM-G1 pinout, AP2815BMM-G1 application, or AP2815BMM-G1 equivalent, this device supports precise enable control (active-high, no auto-discharge), fault-flag reporting to host controllers, soft-start current limiting, and reverse-current blocking-critical for reliable USB bus and self-powered hub designs.

Technical Context

The AP2815BMM-G1 implements a charge-pump–driven high-side N-MOSFET switch with fold-back current limiting and thermal shutdown at 150°C. Its UVLO threshold is 2.2–2.7V with 0.2V hysteresis, ensuring robust startup under marginal supply conditions.

FLAG output provides deglitched, open-drain fault signaling for over-current (5–15ms delay) and over-temperature events. The enable pin accepts logic-level inputs (VENH ≥1.6V, VENL ≤1.0V), and shutdown current is limited to 1.0µA max.

Key Specifications

Pinout & Package

AP2815BMM-G1 is housed in an MSOP-8 package (4.7 × 3.1 mm, 0.65 mm pitch), optimized for space-constrained USB power rail routing on notebook and embedded motherboard PCBs.

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, AP2815BMM-G1 uniquely combines MSOP-8 packaging, deglitched FLAG reporting, UVLO, and no-auto-discharge enable logic-making it optimal for deterministic, host-controlled USB power architectures requiring traceable fault status.

Availability

AP2815BMM-G1 is available at Aetrix Electronics and suitable for USB power management, notebook motherboard design, and hot-plug battery-charger interface applications requiring stable component supply, RoHS/Green compliance, and long-term lifecycle support.

Supply support for AP2815BMM-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 computing and consumer electronics.

The AP2815 product line targets USB-compliant, high-reliability power distribution in space-constrained platforms-emphasizing fault visibility, thermal resilience, and seamless integration with host controllers.

FAQ

What is the function of the FLAG pin on AP2815BMM-G1?

The FLAG pin is an open-drain output that actively pulls low during over-current or over-temperature events. It requires an external pull-up resistor and provides deglitched fault indication with 5–15ms delay-enabling host microcontrollers to distinguish transient surges from sustained faults without false triggering.

Does AP2815BMM-G1 support reverse current blocking when disabled?

Yes. When disabled, AP2815BMM-G1 blocks reverse current from VOUT to VIN with leakage ≤1.0µA. This prevents backfeed from downstream capacitors or powered peripherals into the upstream supply rail-critical for USB OTG and multi-rail system integrity.

How does the soft-start feature operate in AP2815BMM-G1?

Soft-start limits inrush current by controlling the MOSFET gate ramp rate, resulting in a typical 500µs output rise time from enable activation to 90% VOUT. This prevents input voltage sag and avoids tripping upstream current limiters during hot-plug events.

What is the significance of "Condition B" in AP2815BMM-G1's ordering code?

"Condition B" denotes active-high enable logic with no auto-discharge functionality. Unlike Condition A, it does not internally discharge VOUT after disable-requiring external discharge paths if rapid output decay is needed. This simplifies control timing in deterministic power sequencing.