Diodes Incorporated AP2810DM-G1

Overview

AP2810DM-G1 from BCD Semiconductor is a 1.0A active-low high-side power distribution switch in SOIC-8 package, featuring 60mΩ R_DS(ON), 2.7–5.5V operation, integrated over-current/thermal protection, and open-drain fault flag output-designed for USB bus power management in notebook motherboards and hot-plug supplies.

For engineers reviewing the AP2810DM-G1 datasheet, AP2810DM-G1 pinout, AP2810DM-G1 application, or AP2810DM-G1 equivalent, this page delivers verified electrical specs, SOIC-8 terminal mapping, USB-compliant current-limit behavior (1.1–2.1A), soft-start timing (500µs turn-on), and real-world fault-flag response (5–15ms delay).

Technical Context

The AP2810DM-G1 implements an N-channel MOSFET high-side switch with internal charge pump to drive the gate above VIN, enabling low R_DS(ON) at 5V input. Its enable logic is active-low (EN pin threshold: 0–1.0V), and it lacks auto-discharge functionality per ordering code 'D'.

Fault detection includes fold-back current limiting during short-circuit (0.6A typical short current), thermal shutdown at 150°C with 30°C hysteresis, and UVLO activation at 2.2–2.7V with 0.2V hysteresis-ensuring robust hot-plug operation without reverse current flow when disabled.

Key Specifications

Pinout & Package

AP2810DM-G1 is supplied in SOIC-8 package (4.9×3.9×1.75 mm), RoHS-compliant and green-marked per "G1" suffix. Pinout validated per official datasheet Figure 2 (top view).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2051B and NIS5132MN, AP2810DM-G1 uniquely combines active-low enable, open-drain flag with sub-15ms latency, and USB-optimized 60mΩ R_DS(ON) in SOIC-8-making it optimal for cost-sensitive, fault-aware USB power switching where precise timing and low dropout are mandatory.

Availability

AP2810DM-G1 is available at Aetrix Electronics and suitable for USB power management, notebook motherboard designs, and hot-plug peripheral supplies requiring stable component supply, RoHS/Green compliance, and long-term industrial availability.

Supply support for AP2810DM-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 with wafer fabrication capability, specializing in high-efficiency power management solutions for consumer, computing, and industrial markets.

The AP2810 product line targets USB-compliant, high-reliability power distribution in space- and cost-constrained applications-emphasizing low R_DS(ON), integrated protection, and minimal external component count.

FAQ

What is the function of the FLAG pin on AP2810DM-G1?

The FLAG pin is an open-drain output that goes low during over-current or over-temperature events. It requires an external pull-up resistor to the host controller's logic rail. Its 5–15ms response delay allows filtering of transient faults while ensuring timely host notification for controlled shutdown or retry logic.

Does AP2810DM-G1 support reverse current blocking when disabled?

Yes. When disabled, AP2810DM-G1 blocks reverse current from VOUT to VIN with leakage ≤1.0 µA across -40°C to 85°C ambient. This is achieved via internal circuitry that isolates the MOSFET body diode path-critical for battery-backed or dual-rail systems where backfeed must be prevented.

How does the active-low enable logic affect system design?

The EN pin is active-low, meaning the switch turns on when EN is pulled below 1.0V (typical). This matches common microcontroller GPIO defaults (high-Z or weak pull-up), simplifying interface without level shifters. No internal pull-up exists, so external biasing is required for defined startup state.

What is the significance of the 'D' in AP2810DM-G1's ordering code?

The 'D' denotes active-low enable without auto-discharge functionality. Unlike versions 'A' or 'C', AP2810DM-G1 does not include an internal discharge path from VOUT to GND upon disable-so external bleed resistors may be needed if rapid VOUT decay is required after shutdown.