Diodes Incorporated AP2142MPG-13

Overview

AP2142MPG-13 from Diodes Incorporated is a dual-channel, active-low high-side power switch optimized for USB 2.0-compliant hot-swap applications. It delivers 0.5A continuous load current per channel, features 115mΩ typical R_DS(ON) in MSOP-8EP, integrated 7ms deglitch on open-drain FLG outputs, and operates across 2.7V–5.5V input range with -40°C to +85°C ambient rating.

For engineers reviewing the AP2142MPG-13 datasheet, AP2142MPG-13 pinout, AP2142MPG-13 application, or AP2142MPG-13 equivalent, key selection criteria include active-low enable logic, dual independent over-current/thermal protection with blanked fault reporting, reverse current blocking, and SO-8/MSOP-8EP package thermal performance (θ_JA = 60°C/W).

Technical Context

The AP2142MPG-13 integrates two independent high-side N-channel MOSFET drivers with current-sense FETs for accurate 0.8A trip threshold and ILIMIT clamping at 0.6–1.0A. Each channel implements UVLO (1.9V typ), thermal shutdown at 140°C with 25°C hysteresis, and controlled 0.6ms typical rise time to limit inrush.

Its dual open-drain FLG outputs provide active-low fault reporting with built-in 7ms deglitch timing-eliminating false triggers from capacitive load transients without external components-and support independent monitoring of over-current and over-temperature events per channel.

Key Specifications

Pinout & Package

AP2142MPG-13 is housed in an MSOP-8EP (Exposed Pad) package, where the exposed thermal pad must be soldered to a GND copper pour for optimal θ_JA = 60°C/W performance. Electrical grounding via the pad is required for thermal management but not for signal return paths.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AP2152MPG-13, AP2142MPG-13 offers identical protection and thermal performance but requires active-low enable drive; versus TPS2052BDR, it eliminates external deglitch components and reduces conduction loss by 15mΩ, directly improving efficiency and reliability in USB host designs.

Availability

AP2142MPG-13 is available at Aetrix Electronics and suitable for USB 2.0 dual-port hubs, laptop docking stations, and set-top box USB host interfaces requiring stable component supply, long-term lifecycle continuity, and RoHS-compliant green packaging.

Supply support for AP2142MPG-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 high-reliability power management, signal integrity, and protection solutions for consumer, computing, and industrial markets.

The AP2142/AP2152 product line was designed specifically for USB 2.0-compliant hot-swap power distribution-emphasizing precise current limiting, fault resilience, and minimal external component count in compact surface-mount packages.

FAQ

What is the maximum continuous load current per channel for AP2142MPG-13?

The AP2142MPG-13 supports 0.5A continuous load current per channel under recommended operating conditions (T_A ≤ +85°C, V_IN = 2.7–5.5V). This rating accounts for thermal derating in the MSOP-8EP package and aligns with USB 2.0 port current specifications. Exceeding 0.5A continuously risks triggering thermal shutdown due to power dissipation exceeding the package's θ_JA-limited capability.

Does AP2142MPG-13 support reverse current blocking, and how is it implemented?

Yes, AP2142MPG-13 provides inherent reverse current blocking via its integrated high-side N-channel MOSFET architecture. When the switch is disabled and V_OUT > V_IN, the body diode remains reverse-biased, preventing backflow from downstream loads into the input rail. This feature is confirmed in the datasheet's "Reverse Leakage Current" specification (I_REV ≤ 1µA at V_IN = 0V, V_OUT = 5V) and is critical for USB OTG and multi-rail system isolation.

How does the 7ms FLG deglitch function prevent false over-current reporting?

The 7ms deglitch circuit holds the FLG output inactive until an over-current condition persists for ≥7ms, effectively filtering out transient inrush spikes from large output capacitors (e.g., 68µF). This timing is factory-trimmed and requires no external components. As verified in Figure 8 of DS31571 Rev. 7-2, it suppresses false flags during normal USB device enumeration while retaining responsiveness to sustained faults like short circuits.

Can AP2142MPG-13 be used in place of AP2152MPG-13, and what design changes are required?

AP2142MPG-13 and AP2152MPG-13 share identical electrical specs, pinout, and package-but differ only in enable polarity: AP2142 uses active-low EN1/EN2, while AP2152 uses active-high. To substitute, invert the enable logic at the host controller level (e.g., add an inverter or reconfigure GPIO drive state). No layout or thermal changes are needed, as R_DS(ON), FLG behavior, and protection thresholds are identical across both variants.