Diodes Incorporated AP2152SG-13

Overview

AP2152SG-13 from Diodes Incorporated is a dual-channel, active-high enable, high-side USB power switch with 0.8A current limiting, 115mΩ on-resistance (MSOP-8EP), and integrated short-circuit/thermal protection. It operates from 2.7V–5.5V input, delivers controlled 0.6ms rise time, and supports hot-swap insertion in USB 2.0-compliant host and self-powered hubs.

For engineers reviewing the AP2152SG-13 datasheet, AP2152SG-13 pinout, AP2152SG-13 application, or AP2152SG-13 equivalent, key selection criteria include enable polarity (active-high), dual independent fault flag reporting with 7ms deglitch, reverse current blocking, and SO-8 package compatibility for legacy USB port designs.

Technical Context

The AP2152SG-13 integrates two independent high-side N-channel MOSFET drivers with per-channel current sensing, UVLO (1.9V threshold), and thermal shutdown at 140°C with 25°C hysteresis. Each channel features open-drain FLG outputs with internal 7ms blanking to suppress false over-current triggers during capacitive load turn-on.

Its architecture employs sense-FET current monitoring-eliminating external shunt resistors-and combines controlled slew-rate gate drive with under-voltage lockout to ensure safe power sequencing in hot-plug environments. The device maintains constant-current limiting (0.8A typ) during overload while reducing output voltage, transitioning to thermal shutdown only if fault persists.

Key Specifications

Pinout & Package

AP2152SG-13 is supplied in an SO-8 package with exposed pad (non-electrical ground path, requires GND thermal connection). Pin assignments are standardized across AP2142/AP2152 family.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TUSB2036IPWR and TPS2051BDBVR, the AP2152SG-13 provides dedicated dual-channel power switching with precise 0.8A current limiting, built-in fault blanking, and reverse blocking-making it optimal for discrete USB port protection without protocol overhead or multi-chip layout complexity.

Availability

AP2152SG-13 is available at Aetrix Electronics and suitable for USB 2.0 host designs, self-powered hub implementations, and hot-swap module interfaces requiring stable component supply and long-term industrial availability.

Supply support for AP2152SG-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, industrial, and computing markets.

The AP21xx series targets USB-compliant power distribution, emphasizing robust hot-swap capability, integrated fault reporting, and compact packaging for space-constrained port designs.

FAQ

What is the maximum continuous load current supported by AP2152SG-13?

The AP2152SG-13 is rated for 0.5A maximum continuous load current per channel, as specified in the Recommended Maximum Continuous Load Current table. This rating accounts for thermal derating at elevated ambient temperatures and ensures reliable operation within SO-8 package thermal limits under sustained load conditions.

Does AP2152SG-13 require external components for current limiting or fault reporting?

No external components are required for current limiting or fault reporting. The device integrates sense-FET current monitoring, 7ms deglitch on FLG outputs, UVLO, and thermal shutdown. Only recommended external components are 0.1µF ceramic bypass capacitors at IN–GND and OUT–GND to stabilize operation and suppress transients.

Can AP2152SG-13 be used in 3.3V-only systems?

Yes. The AP2152SG-13 supports input voltages from 2.7V to 5.5V, making it fully compatible with 3.3V systems. Its EN input logic thresholds (V_IL ≤ 0.8V, V_IH ≥ 2V) ensure reliable interfacing with 3.3V GPIO controllers, and R_DS(ON) remains within specification at 3.3V input (140–180mΩ).

How does the FLG output behave during a short-circuit event?

During a short-circuit event, the FLG pin goes active-low after a nominal 7ms deglitch period and remains low until both over-current and over-temperature conditions are cleared. If thermal shutdown activates, FLG stays asserted until junction temperature falls below the hysteresis threshold (~115°C), ensuring persistent fault indication during recovery.