Diodes Incorporated AP2166MPG-13

Overview

AP2166MPG-13 from Diodes Incorporated is a dual-channel, active-low enable, high-side USB power switch with 1.5A current limiting, 90mΩ R_DS(ON) (MSOP-8EP), 2.7–5.5V input range, and integrated short-circuit/thermal protection-designed for USB 2.0 host/self-powered hubs and hot-swap applications in laptops and docking stations.

For engineers reviewing the AP2166MPG-13 datasheet, AP2166MPG-13 pinout, AP2166MPG-13 application, or AP2166MPG-13 equivalent, key selection criteria include enable polarity compatibility, dual-channel fault reporting via open-drain FLG outputs, deglitched overcurrent detection (7ms blanking), reverse current blocking, and thermal shutdown hysteresis (+25°C).

Technical Context

The AP2166MPG-13 integrates two independent high-side N-channel MOSFETs with matched current-limit thresholds (1.5A typ), UVLO (1.9V typ), and separate EN1/EN2 inputs configured for active-low logic. Each channel features dedicated open-drain FLG outputs with internal deglitch circuitry to suppress false fault reporting during capacitive load inrush.

Its architecture includes reverse-current blocking, thermal sensing with +140°C shutdown and +25°C hysteresis, and low-quiescent operation (95µA typ enabled, 0.5µA max shutdown). The MSOP-8EP package uses an exposed pad tied to GND for enhanced thermal performance (θ_JA = 60°C/W).

Key Specifications

Pinout & Package

AP2166MPG-13 is housed in an MSOP-8EP (Exposed Pad) package. The exposed pad must be soldered to a PCB ground plane with ≥3 thermal vias for optimal thermal performance (θ_JA = 60°C/W); it is not an electrical ground path.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel USB power switch applications.

Compared with AP2166MPG-13, AP2176MPG-13 offers identical protection and performance but requires active-high control logic, while TUSB2036IPW delivers full USB hub silicon but cannot replace discrete power switching or fault monitoring functions.

Availability

AP2166MPG-13 is available at Aetrix Electronics and suitable for USB host hubs, laptop docking stations, and set-top box peripheral interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.

Supply support for AP2166MPG-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for high-volume industrial and consumer markets.

The AP2166/AP2176 family was designed specifically for USB 2.0-compliant hot-swap power distribution-emphasizing dual-channel independence, robust fault reporting, and minimal external component count in space-constrained designs.

FAQ

What is the maximum continuous load current per channel for AP2166MPG-13?

The recommended maximum continuous load current is 1.0A per channel, based on thermal limits and derating curves in the datasheet. While the current limit threshold is 1.5A, sustained operation above 1.0A requires careful PCB thermal design due to R_DS(ON) power dissipation and θ_JA = 60°C/W in the MSOP-8EP package.

Does AP2166MPG-13 support reverse current blocking during hot removal?

Yes, AP2166MPG-13 provides active reverse current blocking: when the input (IN) is unpowered or dropped while the output (OUTx) remains biased by a downstream device, the internal MOSFET body diode is disabled, preventing backfeed current flow from OUTx to IN. This meets USB 2.0 requirements for hot-unplug safety.

How does the 7ms FLG deglitch function interact with output capacitor charging?

The 7ms deglitch timer starts upon detection of overcurrent and holds the FLG output inactive until expiration-effectively ignoring transient inrush spikes during startup of typical 68µF output capacitors. Only sustained overcurrent (>7ms) asserts FLG low, eliminating false interrupts during normal hot-plug events.

Can AP2166MPG-13 operate reliably at -40°C ambient temperature?

Yes, AP2166MPG-13 is fully specified from -40°C to +85°C ambient. Electrical characteristics-including R_DS(ON), current limit, and UVLO-are guaranteed across this range. At -40°C, short-circuit current remains ≥1.45A, and thermal shutdown still triggers at +140°C junction temperature with +25°C hysteresis.