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Analog Devices Inc./Maxim Integrated MAX1558ETB+T
- Part No.:
- MAX1558ETB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX1558ETB+T.pdf
- Description:
- IC INTERFACE SPECIALIZED 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX1558ETB+T from Maxim Integrated is a dual-channel, programmable-current USB power switch IC with autoreset fault recovery, 55mΩ on-resistance, 1.2A continuous current per channel, and 2.7V–5.5V supply range-designed for protecting USB ports in notebook computers and docking stations.
For engineers reviewing the MAX1558ETB+T datasheet, MAX1558ETB+T pinout, MAX1558ETB+T application, or MAX1558ETB+T equivalent, this device delivers precise current limiting (±14%), reverse-current blocking when disabled, independent fault flag outputs (FLTA/FLTB), and 20ms fault blanking to tolerate hot-swap transients without false tripping.
Technical Context
The MAX1558ETB+T integrates two independent high-side MOSFET switches with charge-pump gate drivers, programmable current limit via single external resistor (26kΩ–60kΩ), and per-channel thermal shutdown at +160°C with 10°C hysteresis. Its autoreset circuit sources 30mA into the faulted output and monitors voltage recovery above 0.5V for >20ms before re-enabling.
It implements undervoltage lockout (2.5V threshold, 3% hysteresis), open-drain fault indicators with 1mA sink capability, and bidirectional reverse-current blocking only when disabled-enabling safe operation with noncompliant USB loads while maintaining full compliance with IEC USB port specifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports full USB battery and adapter input range without external regulation |
| Continuous Load Current | 1.2A per channel - meets USB 2.0 port current requirements with margin |
| On-Resistance (RON) | 55mΩ typical - minimizes voltage drop and power loss at 1.2A (≤66mW per switch) |
| Current-Limit Accuracy | ±14% - ensures predictable overcurrent protection across temperature and supply |
| Fault-Blanking Timeout | 20ms typical - suppresses false trips during capacitive load hot-plug events |
| Quiescent Supply Current | 45µA typical - extends battery life in portable USB host applications |
| Standby Supply Current | 3µA typical - enables ultra-low-power suspend states in USB hubs |
| Thermal Shutdown Threshold | +160°C junction - protects die integrity under sustained overload or short-circuit |
Pinout & Package
MAX1558ETB+T is housed in a lead-free, 10-pin TDFN package (3mm × 3mm, 0.8mm height) with exposed thermal pad internally connected to GND. The compact footprint supports high-density USB port routing on space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INA | Power Input A | Main supply rail for Switch A; must be bypassed with ≥0.1µF ceramic capacitor to GND |
| 2 ONA | Enable Input A (active-low) | Logic low enables Switch A; tolerant of voltages up to INA + 0.3V |
| 3 ISET | Current-Limit Programming | Resistor to GND (26kΩ–60kΩ) sets both channels' current limit per ILIM = 36.4kΩ / RISET |
| 4 ONB | Enable Input B (active-low) | Logic low enables Switch B; independent control allows asymmetric port management |
| 5 INB | Power Input B | Main supply rail for Switch B; tied externally to INA for shared input bus |
| 6 OUTB | Power Output B | USB Port B power delivery node; requires ≥1µF local decoupling to GND |
| 7 FLTB | Fault Indicator B | Open-drain output asserted low during UVLO, thermal shutdown, or sustained >20ms current limit |
| 8 GND | Ground Reference | Common return for power, logic, and fault signals; connects to exposed thermal pad |
| 9 FLTA | Fault Indicator A | Open-drain output asserted low under identical fault conditions as FLTB, but for Channel A |
| 10 OUTA | Power Output A | USB Port A power delivery node; requires ≥1µF local decoupling to GND |
Key Features
| Feature | Design Value |
|---|---|
| Autoreset Fault Recovery | Automatically re-enables channel after fault removal detection (≥0.5V for ≥20ms), eliminating manual reset or host intervention |
| Reverse-Current Blocking | Prevents backflow from OUT to IN when switches are disabled-critical for USB specification compliance |
| Independent Thermal Shutdown | Per-channel +160°C shutdown allows one port to remain operational during overload on the other |
| 20ms Fault Blanking | Filters transient inrush currents (e.g., hot-plug capacitive loads) to prevent nuisance tripping |
| Programmable Current Limit | Single resistor (26kΩ–60kΩ) sets identical current thresholds for both channels with ±14% accuracy |
| UL Recognition | UL #E211395 certified - simplifies safety compliance for end equipment in North America |
Applications
| USB Hub Power Management | Notebook Computer USB Ports |
|---|---|
Use Scenario: Distributing regulated 5V power across four downstream USB ports in a compact hub IC design. IC Role / Device Role / Timing Role: Dual high-side switch providing independent current-limited power rails with fault isolation per port. Use Value: Prevents single-port short from disabling entire hub; autoreset restores functionality without host software involvement. |
Use Scenario: Powering front-panel USB-A ports on ultrabooks with strict thermal and battery-life constraints. IC Role / Device Role / Timing Role: USB port protector delivering 1.2A per port with <3µA standby current and thermal derating headroom. Use Value: Enables always-on USB charging support while meeting 100-hour standby battery drain targets. |
| Docking Station Port Protection | Industrial USB Peripheral Interface |
Use Scenario: Safeguarding USB 2.0 data/power interfaces in enterprise docking stations connecting to monitors, storage, and peripherals. IC Role / Device Role / Timing Role: Dual-channel current limiter with independent FLT outputs feeding host controller GPIOs for real-time fault logging. Use Value: Provides deterministic fault reporting (UVLO, thermal, short-circuit) without requiring additional supervisor ICs. |
Use Scenario: Enabling USB-powered industrial sensors and actuators in factory automation systems where ESD and cable inductance are concerns. IC Role / Device Role / Timing Role: Robust USB switch with 15kV ESD protection (with external capacitor) and inductive load tolerance. Use Value: Eliminates need for discrete TVS diodes and series resistors, reducing BOM count and layout area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel USB power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB2036IPWR | Integrated USB 2.0 hub controller + power switches; requires external crystal; no programmable current limit | Designed for full hub functionality (repeater, transaction translator), not standalone power switching | Select when full USB 2.0 hub features (addressing, enumeration) are required alongside power control |
| TPS2051BDBVR | Single-channel, fixed 1.5A current limit; no autoreset; 110mΩ RON; no reverse-current blocking | Lacks dual-channel integration and fault recovery-requires two devices and external logic for dual-port use | Select for cost-sensitive, single-port applications where autoreset and reverse blocking are not mandatory |
Compared with TUSB2036IPWR and TPS2051BDBVR, the MAX1558ETB+T uniquely combines dual-channel integration, programmable current limit, autoreset recovery, and reverse-current blocking in a single 3mm × 3mm package-making it optimal for compact, self-healing USB port designs where reliability and space efficiency are critical.
Availability
MAX1558ETB+T is available at Aetrix Electronics and suitable for notebook computers, USB hubs, docking stations, and industrial peripheral interfaces requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX1558ETB+T 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
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, computing, and communications markets.
The MAX1558ETB+T belongs to Maxim's USB power switch product line, engineered specifically to meet IEC-compliant current limiting, fault resilience, and space-constrained port protection requirements in portable and embedded host systems.
FAQ
What is the key functional difference between MAX1558ETB+T and MAX1558HETB+T?
The MAX1558ETB+T uses active-low enable inputs (ONA/ONB), meaning a logic low turns each switch on. In contrast, the MAX1558HETB+T uses active-high enables-requiring a logic high to activate each channel. Both share identical current-limit programming, fault behavior, package, and electrical specs; only the enable polarity differs. This allows system designers to match existing GPIO logic levels without level-shifting circuitry.
How does the MAX1558ETB+T implement reverse-current blocking?
The MAX1558ETB+T blocks reverse current (from OUT to IN) only when both switches are disabled-via internal high-impedance state at the output FETs. When enabled, it operates as a bidirectional switch, but reverse conduction is inherently limited by the body diode and not actively clamped. This design satisfies USB specification requirements for disabled-port isolation while enabling robust forward power delivery.
Can the MAX1558ETB+T be used with USB-C or USB-PD applications?
No-the MAX1558ETB+T is designed exclusively for legacy USB 2.0 Type-A port power switching at 5V. It lacks USB-C CC logic, VCONN support, PD communication, or variable-voltage regulation. For USB-C/PD applications, dedicated USB-C power delivery controllers (e.g., MAX77756, STUSB4500) must be used in conjunction with appropriate power switches.
What is the minimum recommended ISET resistor value for MAX1558ETB+T, and why?
The minimum recommended ISET resistor is 26kΩ, which programs a typical current limit of 1.2A. Using lower values risks exceeding the device's maximum rated current (1.6A peak) and may cause thermal stress or premature failure under sustained load. The datasheet explicitly warns against RISET < 26kΩ due to potential violation of absolute maximum ratings.
Does MAX1558ETB+T require external components for basic operation?
Yes-basic operation requires: (1) 0.1µF ceramic capacitor between INA/INB and GND for input decoupling; (2) 1µF ceramic capacitor at each OUTA/OUTB for output stability; (3) pull-up resistors (e.g., 100kΩ) from FLTA/FLTB to IN_ for fault indicator interfacing; and (4) an ISET resistor (26kΩ–60kΩ) to ground to set current limit. No external clock or bias components are needed.
MAX1558ETB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- USB
- Interface:
- USB
- Voltage - Supply:
- 2.75V ~ 5.5V
- Supplier Device Package:
- 10-TDFN (3x3)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
MAX1558ETB+T FAQ
1.How can I place an order for MAX1558ETB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1558ETB+T 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 MAX1558ETB+T reliable?
The price and inventory of MAX1558ETB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1558ETB+T is usually 5 days.
3.What payment methods are accepted for MAX1558ETB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1558ETB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1558ETB+T?
MAX1558ETB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1558ETB+T 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 MAX1558ETB+T?
For technical support, including MAX1558ETB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1558ETB+T requirements.
6.How does Aetrix verify that MAX1558ETB+T is sourced from the original manufacturer or authorized distributors?
All MAX1558ETB+T 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 MAX1558ETB+T meets industry standards.
7.What is the process for return or replacement of MAX1558ETB+T?
All MAX1558ETB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1558ETB+T, 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 MAX1558ETB+T part is unused and in its original packaging.
Return procedure for MAX1558ETB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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