Diodes Incorporated AP2152AFGEG-7

Overview

AP2152AFGEG-7 from Diodes Incorporated is a dual-channel, 0.5A current-limited high-side power switch with integrated output discharge, designed for USB 2.0 hub and hot-swap applications. It features active-high enable inputs, 85 mΩ typical R_DS(ON) at 5V, 2 µs short-circuit response time, and 7 ms deglitched fault flag reporting. The device operates across 2.7V–5.5V input voltage and delivers controlled 0.6 ms typical output rise time.

For engineers reviewing the AP2152AFGEG-7 datasheet, AP2152AFGEG-7 pinout, AP2152AFGEG-7 application, or AP2152AFGEG-7 equivalent, key selection criteria include per-channel 0.7A current limit accuracy, reverse current blocking capability, thermal shutdown at 140°C with 25°C hysteresis, and U-DFN3030-8 package suitability for space-constrained USB port power management.

Technical Context

The AP2152AFGEG-7 implements two independent P-channel MOSFET high-side switches with dedicated current-sense FETs and thermal sensing circuitry per channel. Each channel provides over-current limiting (0.7A typ), UVLO (2.0V threshold), and open-drain FLG reporting with 7 ms blanking to suppress false triggers during capacitive inrush.

Its discharge function activates automatically upon disable or power-down, using an internal N-MOS path with 100 Ω typical resistance to safely dissipate output capacitor energy. The U-DFN3030-8 package includes an exposed thermal pad connected to GND, delivering 60 °C/W θ_JA for sustained 500 mA per channel operation within -40°C to +85°C ambient.

Key Specifications

Pinout & Package

AP2152AFGEG-7 is housed in a 3.0 mm × 3.0 mm, 0.5 mm pitch U-DFN3030-8 package with exposed thermal pad (EP). The EP must be soldered to a GND plane via ≥4 thermal vias for optimal thermal performance (θ_JA = 60 °C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AP2142AFGEG-7, AP2152AFGEG-7 simplifies MCU interface by eliminating level-shifting or inverter gates; versus TCK112G, it reduces component count by 50% and enables faster, safer hot-plug response through integrated discharge and tighter 2 µs fault detection.

Availability

AP2152AFGEG-7 is available at Aetrix Electronics and suitable for USB 2.0 hub designs, laptop docking stations, and set-top box peripheral interfaces requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant "Green" packaging.

Supply support for AP2152AFGEG-7 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 applications.

The AP2152A belongs to Diodes' USB power distribution switch product line, engineered specifically to replace discrete MOSFET+driver+protection circuits in USB-compliant hot-swap systems while meeting UL recognition and IEC60950-1 safety standards.

FAQ

What is the maximum safe continuous current per channel for AP2152AFGEG-7 in a standard 2-layer PCB layout?

The datasheet specifies 0.5A maximum continuous load current per channel under recommended operating conditions. This rating assumes use of the U-DFN3030-8 package with its exposed pad soldered to a minimum 1 cm² GND copper area and ≥4 thermal vias. At 0.5A and 85 mΩ R_DS(ON), power dissipation is ~21 mW per channel-well within thermal limits even at +85°C ambient. Exceeding 0.5A risks thermal shutdown due to junction temperature rise beyond 140°C.

Can AP2152AFGEG-7 be used in USB 3.0 applications?

No. AP2152AFGEG-7 is qualified and specified only for USB 2.0 compliance, supporting up to 120 µF total output capacitance per port. USB 3.0 requires stricter inrush current limits (≤150 mA) and higher capacitance handling (up to 150 µF per port), which this device does not guarantee. Its 0.6 ms rise time and 0.5A current limit exceed USB 3.0's 10–100 ms ramp and lower current thresholds. Use Diodes' AP2280x series for USB 3.x designs.

How does the 7 ms FLG blanking time interact with USB 2.0 hub capacitor charging?

The 7 ms deglitch window aligns precisely with the 4.7 µF typical per-port bulk capacitor charge transient duration observed in USB 2.0 hubs. During initial power-on, inrush current peaks for <5 ms before settling-within the blanking period-so FLG remains inactive. Only sustained over-current events (>7 ms) trigger the flag, preventing false reports during normal hub enumeration while preserving fast 2 µs fault detection for actual shorts.

Is external circuitry required to implement output discharge functionality?

No. AP2152AFGEG-7 integrates a dedicated N-MOS discharge switch with 100 Ω typical on-resistance, activated automatically when EN1/EN2 are de-asserted or VIN falls below UVLO. This eliminates the need for external resistors, MOSFETs, or timing components. The internal path safely discharges 100 µF loads from 5V to <1V in ~11 ms, meeting USB hot-unplug requirements without additional BOM cost or layout area.