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Diodes Incorporated PI5USB1458AZAEX
- Part No.:
- PI5USB1458AZAEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Battery Management
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
PI5USB1458AZAEX.pdf
- Description:
- IC BATT MFUNC LI-ION 1CELL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,626
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Product details
Overview
PI5USB1458AZAEX from Pericom Semiconductor is a USB host charger controller IC supporting BC1.2, YD/T-1591, Apple 1A/2A, Samsung, Sony Ericsson, and Amazon Kindle Fire charging protocols. It manages D+/D− signaling during system sleep (S3) to enable automatic device detection and mode selection, operates from 4.75–5.25 V, features integrated ±4 kV IEC61000-4-2 ESD protection on D+/D−, and delivers <5 Ω switch RON for USB 2.0 high-speed paths in notebook PC USB charging ports.
For engineers reviewing the PI5USB1458AZAEX datasheet, PI5USB1458AZAEX pinout, PI5USB1458AZAEX application, or PI5USB1458AZAEX equivalent, key selection criteria include auto-dedicated-charger mode behavior, INT vs. INT/ pin variant compatibility, SB/ and SEL logic-controlled mode mapping, USB 2.0 signal integrity (−30 dB crosstalk, 1350 MHz −3 dB BW), and thermal performance in 2.0 × 2.0 mm TDFN-ZA packaging.
Technical Context
The PI5USB1458AZAEX implements dual-path USB switching with independent D+/D− and Y+/Y− routing controlled by SB/ and SEL inputs. Its auto-dedicated-charging mode uses load-sensing and data-rate analysis to distinguish between high-speed devices and low/full-speed peripherals (e.g., mouse/keyboard), enabling pass-through functionality during S3 sleep while maintaining host enumeration capability.
It integrates internal resistor networks (RP1/RP2 = 1.5:1 ratio, RM1/RM2 = 0.863:1 ratio) for precise BC1.2 CDP/SDP detection, supports manual DCP configuration via SB/ and SEL voltage states, and includes anti-loop protection to prevent HDD oscillation during charging transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 4.75–5.25 V: Ensures stable operation across standard USB 5 V rail tolerances without external regulation. |
| RON (HS) | 3–5 Ω: Minimizes insertion loss (<−0.6 dB at 240 MHz) and preserves USB 2.0 eye diagram integrity. |
| ESD Protection | ±4 kV contact per IEC61000-4-2 on D+/D− pins: Eliminates need for discrete TVS diodes in host-side USB ports. |
| Operating Temp | −40°C to +85°C: Validated for industrial-grade notebook and docking station thermal environments. |
| INT Output | Open-drain, active-low pulse (~2.4 s duration): Provides synchronous event notification to host MCU upon plug/unplug or mode change. |
| CDP Detection | VD− source = 0.5–0.7 V, ID+ sink = 50–150 µA: Matches USB Battery Charging Spec 1.2 CDP primary/secondary detection thresholds. |
| −3 dB Bandwidth | 1350 MHz: Supports full USB 2.0 high-speed (480 Mbps) signaling without signal degradation. |
Pinout & Package
Package: 8-pin TDFN-ZA (2.0 mm × 2.0 mm × 0.75 mm), Pb-free and RoHS-compliant, with exposed thermal pad connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INT) | Interrupt output | Active-low open-drain signal indicating plug/unplug or mode transition; requires external pull-up. |
| 2 (D−) | USB data negative | Bidirectional I/O path between USB connector and host transceiver; protected with ±4 kV ESD clamp. |
| 3 (D+) | USB data positive | Bidirectional I/O path paired with D−; maintains <10 ps intra-pair skew for HS signal fidelity. |
| 4 (SEL) | Mode select input | Logic-controlled pin (100 kΩ internal pull-down) defining SDP/CDP/DCP behavior per truth table. |
| 5 (VDD) | Power supply | 5 V ±5% input; supplies internal logic, switch drivers, and ESD protection circuitry. |
| 6 (Y+) | Host transceiver D+ | Connects to upstream USB PHY; enables mouse/keyboard pass-through during S3 sleep mode. |
| 7 (Y−) | Host transceiver D− | Paired with Y+; completes bidirectional USB 2.0 path when SB/ = high and SEL configures mode. |
| 8 (SB/) | Sleep/active control | Active-low input triggering auto-dedicated-charger mode or S0/S3 state transition logic. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-Dedicated-Charger Mode | Dynamically selects DCP, CDP, or OEM-specific fast-charge protocol (Apple/Samsung/Kindle) based on real-time device detection-no firmware update required. |
| Mouse/Keyboard Pass-Through | Maintains USB low/full-speed communication path during S3 sleep, enabling wake-on-USB events without host controller intervention. |
| Integrated Resistor Networks | Factory-trimmed RP1/RP2 (1.5:1) and RM1/RM2 (0.863:1) ensure compliant BC1.2 CDP/SDP detection without external components. |
| Anti-Loop HDD Protection | Hardware-level timing circuit prevents repeated HDD power cycling during charging mode transitions, improving system reliability. |
| USB 2.0 Signal Integrity | −30 dB crosstalk and −30 dB off-isolation at 240 MHz preserve signal integrity for high-speed data transfer alongside charging. |
Applications
| USB-Capable Notebook PCs | Enterprise Docking Stations |
|---|---|
|
Use Scenario: Notebook PC provides charging to smartphones and tablets via built-in USB-A ports while in S3 sleep mode. IC Role / Device Role / Timing Role: USB host charger controller managing D+/D− line states to emulate dedicated charging port (DCP) during sleep, enabling device-initiated charge draw. Use Value: Eliminates need for host OS wake-up to initiate charging-reduces power consumption and extends battery life during idle periods. |
Use Scenario: Docking station supports simultaneous charging of multiple mobile devices and peripheral enumeration (keyboard/mouse) during host sleep. IC Role / Device Role / Timing Role: Dual-path USB switch enabling concurrent DCP charging and low-speed pass-through for wake-capable peripherals. Use Value: Enables single-port multi-functionality-charging + wake-on-USB-without compromising signal integrity or requiring additional logic. |
| USB Hub-Based Charging Solutions | Industrial Tablet Docking Systems |
|
Use Scenario: Multi-port USB hub integrates BC1.2-compliant charging for attached accessories while maintaining data throughput. IC Role / Device Role / Timing Role: Protocol-aware charger controller detecting and configuring per-port charging mode (SDP/CDP/DCP) based on attached device signature. Use Value: Delivers up to 1.5 A per port under CDP mode while preserving USB 2.0 HS bandwidth for data sync during charging. |
Use Scenario: Ruggedized tablet dock charges field-deployed devices and supports hot-plug keyboard/mouse in harsh environments. IC Role / Device Role / Timing Role: Robust USB interface IC with −40°C to +85°C operation, ±4 kV ESD protection, and anti-loop HDD control for mission-critical systems. Use Value: Ensures reliable charging and peripheral support across wide temperature ranges without external protection or thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB host charger controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2546RTER | Single-interrupt output (INT), no INT/ variant; supports USB BC1.2 only (no YD/T-1591 or OEM fast-charge extensions) | Lacks Samsung/Apple/Kindle protocol support; limited to standard BC1.2 DCP/CDP/SDP modes | Select when OEM fast-charge compatibility is not required and design uses TI ecosystem tools. |
| IP5306 | Integrated Li-ion charger + USB switch; no dedicated CDP detection circuitry or BC1.2 compliance certification | Targeted at portable power banks-not host-side USB charging ports requiring S3 sleep support | Use only in self-powered battery-backed applications where host-side sleep-mode charging is irrelevant. |
Compared with TPS2546RTER and IP5306, the PI5USB1458AZAEX uniquely combines certified BC1.2/YD/T-1591/OEM fast-charge support, S3 sleep-mode D+/D− emulation, and hardware-enforced anti-loop protection-making it the only option for notebook/docking applications requiring full protocol coverage and system-level power-state transparency.
Availability
PI5USB1458AZAEX is available at Aetrix Electronics and suitable for USB host charging ports in notebook PCs, enterprise docking stations, industrial tablet docks, and multi-port USB hubs requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/Pb-free compliance.
Supply support for PI5USB1458AZAEX 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
Pericom Semiconductor (acquired by Diodes Incorporated in 2017) specialized in high-speed interface and timing solutions for computing, communications, and consumer electronics before integration into Diodes' analog portfolio.
The PI5USB1458A belongs to Pericom's USB protocol-aware switch and charger controller product line, designed specifically to solve host-side USB charging interoperability challenges-including sleep-mode charging, OEM fast-charge protocol support, and robust ESD protection in space-constrained notebooks and docks.
FAQ
What is the functional difference between PI5USB1458 and PI5USB1458A?
The PI5USB1458A features an active-low open-drain INT output on pin 1, whereas the base PI5USB1458 uses an active-high open-source INT/ output. This affects external pull-up/pull-down requirements and MCU interrupt polarity handling. All other electrical characteristics, pin functions (except pin 1), and protocol support are identical between the two variants.
How does the PI5USB1458AZAEX support Apple 2A charging mode?
It detects Apple-specific D+/D− voltage signatures (e.g., D+ = 2.0 V, D− = 2.8 V) using its internal resistor network and comparator circuitry, then configures the USB port into a proprietary 2A charging mode by setting appropriate D+/D− levels-fully compliant with Apple's MFi documentation for host-side chargers.
Can the PI5USB1458AZAEX be used in USB-C designs?
No-it is designed exclusively for USB-A host ports with legacy D+/D− signaling. USB-C requires CC logic, PD communication, and dual-role port management, which this IC does not implement. It lacks CC pin support, VCONN switching, or USB Power Delivery protocol handling.
What is the purpose of the Y+ and Y− pins?
Y+ and Y− provide a secondary USB data path connecting to the host controller's transceiver, enabling mouse/keyboard pass-through during S3 sleep. When SB/ is low, the IC routes D+/D− signals through Y+/Y− to maintain low/full-speed USB communication-even when the main host controller is powered down.
PI5USB1458AZAEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Multi-Function Controller
- Battery Chemistry:
- Lithium Ion
- Number of Cells:
- 1
- Fault Protection:
- -
- Interface:
- USB
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x2)
PI5USB1458AZAEX FAQ
1.How can I place an order for PI5USB1458AZAEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI5USB1458AZAEX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PI5USB1458AZAEX reliable?
The price and inventory of PI5USB1458AZAEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI5USB1458AZAEX is usually 5 days.
3.What payment methods are accepted for PI5USB1458AZAEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI5USB1458AZAEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI5USB1458AZAEX?
PI5USB1458AZAEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI5USB1458AZAEX order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PI5USB1458AZAEX?
For technical support, including PI5USB1458AZAEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI5USB1458AZAEX requirements.
6.How does Aetrix verify that PI5USB1458AZAEX is sourced from the original manufacturer or authorized distributors?
All PI5USB1458AZAEX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI5USB1458AZAEX meets industry standards.
7.What is the process for return or replacement of PI5USB1458AZAEX?
All PI5USB1458AZAEX units undergo pre-shipment inspection (PSI). If there is an issue with PI5USB1458AZAEX, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PI5USB1458AZAEX part is unused and in its original packaging.
Return procedure for PI5USB1458AZAEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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