Diodes Incorporated PI5USB2058ZHE

Overview

PI5USB2058ZHE from Diodes Incorporated (acquired Pericom in 2017) is a USB power switch IC with Power Nap™ technology, designed to enable battery-powered handheld devices to draw charging current from notebook PC VBUS during system sleep mode. It features 70mΩ on-resistance, ±8kV IEC61000-4-2 ESD protection on D+/D−/VBUS pins, 2A continuous current capability, and automatic detection of USB-compliant and proprietary (e.g., Apple) charging protocols.

For engineers reviewing the PI5USB2058ZHE datasheet, PI5USB2058ZHE pinout, PI5USB2058ZHE application, or PI5USB2058ZHE equivalent, key selection criteria include sleep-mode D+/D− signal assertion, reverse current blocking, thermal/short-circuit protection, undervoltage lockout, and compliance with YD/T-1591 and USB 1.1 charger specifications.

Technical Context

The PI5USB2058ZHE integrates dual-channel MOSFETs with adaptive gate control to assert precise D+/D− voltage levels (e.g., D+ = 2.0V, D− = 2.7V for Apple 2.1A mode) during host sleep, enabling legacy and proprietary charging handshakes without USB enumeration. Its internal state machine auto-detects device type via D+/D− line sensing and selects among USB BC1.2, YD/T-1591, and Apple 1A/2.1A modes.

It implements deglitched overcurrent reporting with no false OC triggers at power-up, supports 5V ±10% input, provides reverse current blocking to prevent backfeed from downstream devices, and includes undervoltage lockout below 4.5V to ensure stable operation during brownout conditions.

Key Specifications

Pinout & Package

Package: 20-contact, 3.5mm × 3.5mm, 0.5mm pitch TQFN (ZH), RoHS-compliant and halogen-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TUSB2036IRHBR and TPS2546RTET, the PI5USB2058ZHE uniquely delivers autonomous, enumeration-free charging initiation during host sleep across USB, YD/T-1591, and Apple protocols - eliminating MCU dependency and enabling true zero-software charging solutions.

Availability

PI5USB2058ZHE is available at Aetrix Electronics and suitable for notebook docking stations, USB-C adapter designs, industrial tablet cradles, and smartphone charging hubs requiring stable component supply and long-term lifecycle support.

Supply support for PI5USB2058ZHE 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 acquired Pericom Semiconductor in 2017 and now manufactures and supports the PI5USB2058ZHE as part of its high-performance interface and power management portfolio.

This device belongs to Diodes' USB power delivery and charging IC product line, engineered specifically for host-side smart charging applications where enumeration is unavailable or undesirable - especially in sleep-state and embedded host environments.

FAQ

What charging protocols does the PI5USB2058ZHE support without USB enumeration?

The PI5USB2058ZHE supports USB Battery Charging Specification Rev 1.2 (BC1.2), China's YD/T-1591 standard, and Apple's proprietary 1A/2.1A charging modes - all activated autonomously via hardware-based D+/D− voltage detection and assertion, with no host software or USB enumeration required. It identifies device type solely through analog D+/D− line behavior during attachment.

How does the Power Nap™ feature function during system suspend?

During S3/S4 sleep, the PI5USB2058ZHE monitors VBUS presence and, upon detecting a valid 5V source, drives D+ and D− to preconfigured voltage pairs (e.g., 2.0V/2.7V for Apple 2.1A) using internal precision references and low-leakage switches. This mimics an active host handshake, prompting the attached device to begin drawing up to 2A from VBUS without waking the CPU or USB controller.

Does the PI5USB2058ZHE require external components for ESD protection?

No. The PI5USB2058ZHE integrates full IEC61000-4-2 ±8kV contact ESD protection on pins 6 (D+), 7 (D−), and 18 (VBUS), and meets JESD22-A114 8kV HBM on all pins. No external TVS diodes or RC filters are needed for standard USB port ESD compliance, simplifying layout and reducing BOM count.

What thermal performance can be expected at 2A continuous load in the ZH package?

In the 3.5mm × 3.5mm TQFN-ZH package with recommended 4-layer PCB layout (2 oz copper, 1-in² thermal pad area), the PI5USB2058ZHE exhibits ≤25°C junction-to-ambient rise at 2A/5V under still-air conditions. Its thermal shutdown activates at 150°C, and hiccup-mode recovery resumes operation once die temperature falls below 135°C.