My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX1558HETB-T
- Part No.:
- MAX1558HETB-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX1558HETB-T.pdf
- Description:
- USB SWITCHES WITH AUTORESET
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX1558HETB-T from Maxim Integrated is a dual-channel, programmable-current USB power switch IC with active-high enable logic, 55mΩ on-resistance, 1.2A continuous current per channel, and autoreset fault recovery. It protects USB ports in portable systems by enforcing IEC-compliant current limiting, thermal shutdown, reverse-current blocking, and 20ms fault blanking-enabling robust hot-swap operation into capacitive loads.
For engineers reviewing the MAX1558HETB-T datasheet, MAX1558HETB-T pinout, MAX1558HETB-T application, or MAX1558HETB-T equivalent, this page delivers verified electrical specs, package mapping, functional pin roles, real-world USB system integration context, and validated alternative options for dual-channel USB power management.
Technical Context
The MAX1558HETB-T integrates two independent high-side MOSFET switches with charge-pump gate drivers, programmable current-limit circuitry (set via external resistor from ISET to GND), and per-channel open-drain fault indicators (FLTA/FLTB). Its architecture supports simultaneous or staggered channel control with no cross-talk between thermal shutdown, UVLO, or autoreset events.
Each channel features dedicated 20ms fault-blanking timers, independent 160°C thermal-shutdown thresholds with 10°C hysteresis, and reverse-current blocking when disabled. The device operates across 2.7V–5.5V supply range and maintains <75µA quiescent current with both switches enabled-critical for battery-powered USB host applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports full USB 2.0 bus voltage tolerance and single-cell Li-ion or 3.3V/5V system rails. |
| Continuous Load Current | 1.2A per channel (RISET = 26kΩ) - meets USB 2.0 high-power port specification without derating at +85°C. |
| On-Resistance (RON) | 55mΩ typical at VIN = 5V - minimizes voltage drop (<66mV at 1.2A) and power loss (79mW per channel). |
| Fault-Blanking Timeout | 20ms ±12ms - suppresses false trip during USB hot-plug transients while retaining fast short-circuit detection. |
| Quiescent Supply Current | 45µA typical with both switches enabled - extends battery life in always-on USB hub or docking station standby modes. |
| Standby Supply Current | 3µA typical with both switches disabled - enables ultra-low-power suspend states in portable hosts. |
| Autorestart Threshold | 0.4V to 0.6V rising at output - ensures reliable latched-fault recovery only after short removal and stable load reconnection. |
Pinout & Package
MAX1558HETB-T is housed in a lead-free, 10-pin TDFN package measuring 3mm × 3mm with exposed thermal pad (internally connected to GND). The compact footprint supports high-density USB port routing on space-constrained PCBs while enabling efficient heat dissipation through the exposed pad soldered to a large copper plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INA | Power Input A | Main input supply for Switch A; must be tied to INB and bypassed with ≥0.1µF ceramic capacitor to GND. |
| 2 ONA | Enable Input A (Active-High) | Logic high (>2.0V) enables Switch A; compatible with 3.3V/5V GPIO without level shifting. |
| 3 ISET | Current-Limit Programming | Resistor from ISET to GND sets both channels' current limit (26kΩ–60kΩ yields 0.5A–1.2A). |
| 4 ONB | Enable Input B (Active-High) | Independent active-high control for Switch B; allows asynchronous channel sequencing. |
| 5 INB | Power Input B | Main input supply for Switch B; electrically tied to INA for shared input rail operation. |
| 6 OUTB | Power Output B | Switched 5V output for USB Port B; requires ≥1µF ceramic capacitor to GND for EMI suppression. |
| 7 FLTB | Fault Indicator B | Open-drain output pulled low during thermal shutdown, UVLO, sustained current limit (>20ms), or autoreset mode. |
| 8 GND | Ground Reference | Primary signal and power return; connects internally to exposed thermal pad for thermal conduction. |
| 9 FLTA | Fault Indicator A | Independent open-drain fault flag for Switch A; enables per-port USB controller diagnostics. |
| 10 OUTA | Power Output A | Switched 5V output for USB Port A; decoupled identically to OUTB for balanced noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Current Limit | Adjustable 0.5A–1.2A per channel via single external resistor-enables design reuse across USB peripheral classes (low-/high-power). |
| Autoreset Fault Recovery | Automatically re-enables channel after short removal (detected via 30mA test current and 0.5V threshold)-eliminates host firmware intervention for transient faults. |
| Reverse-Current Blocking | Prevents backflow from OUT to IN when disabled-ensures USB compliance and protects upstream regulators from noncompliant peripherals. |
| 20ms Fault Blanking | Ignores startup surges and hot-swap transients-prevents false fault assertions during normal USB enumeration and capacitor charging. |
| Independent Thermal Shutdown | Per-channel +160°C junction protection with 10°C hysteresis-allows one port to remain operational during overload on the other. |
Applications
| USB Hub Power Management | Notebook USB Port Protection |
|---|---|
Use Scenario: A 4-port USB 2.0 hub distributes 5V power to multiple peripherals, requiring independent overcurrent protection per port. IC Role / Device Role / Timing Role: MAX1558HETB-T acts as dual high-side power switch, providing per-port current limiting, fault flagging, and auto-recovery without host CPU involvement. Use Value: Enables Class-A USB hub certification by meeting IEC 62368-1 current-limit requirements and eliminating need for discrete polyfuses or microcontroller-based monitoring. |
Use Scenario: A thin-and-light notebook implements two downstream USB-A ports with strict thermal and power budget constraints. IC Role / Device Role / Timing Role: MAX1558HETB-T serves as integrated USB power delivery controller, managing inrush, short-circuit, and thermal events with sub-100µA quiescent draw. Use Value: Reduces BOM count by replacing two discrete load switches + two fault monitors + discrete current-set resistors, saving >12mm² PCB area. |
| Docking Station Port Expansion | Industrial USB Host Interface |
Use Scenario: A Thunderbolt/USB-C docking station adds legacy USB-A ports with hot-plug resilience and ESD-hardened outputs. IC Role / Device Role / Timing Role: MAX1558HETB-T functions as fault-tolerant USB power gate, leveraging 15kV ESD protection (with external capacitor) and reverse-current blocking. Use Value: Survives repeated cable insertion/removal and accidental shorts without latch-up or damage-reducing field failure rates in enterprise deployment. |
Use Scenario: An industrial PLC adds USB host capability for configuration dongles and firmware updates in electrically noisy factory environments. IC Role / Device Role / Timing Role: MAX1558HETB-T provides ruggedized USB power switching with UVLO (2.5V threshold), thermal autonomy, and open-drain FLT signals for PLC-level fault logging. Use Value: Ensures deterministic port disablement during brownout or overtemperature-preventing corrupted USB enumeration and maintaining system watchdog integrity. |
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; includes PHY, transceiver, and packet routing logic-not a standalone power switch. | Requires full USB protocol stack support; not suitable for simple power gating where host handles enumeration. | Select only if adding full hub functionality; MAX1558HETB-T is preferred for discrete power control in custom USB host designs. |
| TPS2051BDBVR | Single-channel 1.5A USB switch with fixed 1.5A current limit, no ISET programming, and no autoreset-latches off on fault until reset. | Lacks per-port programmability and autonomous recovery; requires external MCU polling of FLT pin and manual ON toggle. | Choose for cost-sensitive single-port applications where firmware can manage fault clearing; MAX1558HETB-T offers superior autonomy for multi-port systems. |
Compared with TUSB2036IPWR and TPS2051BDBVR, the MAX1558HETB-T uniquely combines dual-channel active-high control, resistor-programmable current limits, and fully autonomous autoreset-making it optimal for embedded USB host designs needing minimal firmware overhead and guaranteed IEC-compliant protection.
Availability
MAX1558HETB-T is available at Aetrix Electronics and suitable for USB hub designs, notebook computer port protection, docking station expansion, industrial USB host interfaces, and portable peripheral power management requiring stable component supply and long-term lifecycle support.
Supply support for MAX1558HETB-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 analog, mixed-signal, and power management ICs for industrial, computing, and communications applications.
The MAX1558HETB-T belongs to Maxim's USB power switch product line, engineered specifically for robust, standards-compliant USB port protection in portable and embedded host systems with stringent power and thermal constraints.
FAQ
What is the key functional difference between MAX1558HETB-T and MAX1558ETB+?
The MAX1558HETB-T features active-high enable logic (ONA/ONB asserted high to turn on), whereas MAX1558ETB+ uses active-low enable. This eliminates the need for inverters or GPIO polarity inversion in systems with standard high-asserted control signals. Both share identical current-limit programming, fault behavior, and package-making MAX1558HETB-T the preferred choice for new designs using positive-logic microcontrollers.
How does the MAX1558HETB-T implement reverse-current blocking?
The MAX1558HETB-T blocks reverse current (from OUT to IN) when disabled by turning off its internal high-side MOSFET and isolating the output path. This occurs automatically when ONA or ONB is deasserted, ensuring no backfeed into the USB host supply-even with powered peripherals attached. The blocking is effective down to 0V output and specified at <0.03µA leakage.
Can the MAX1558HETB-T be used in USB-C applications?
The MAX1558HETB-T is designed for USB 2.0 downstream port power switching and is not rated for USB-C VBUS switching, which requires higher voltage (up to 20V), bidirectional current sensing, and PD communication. However, it can safely power USB-C peripherals operating in legacy USB 2.0 mode (5V only) when placed on the downstream side of a compliant USB-C receptacle.
What is the minimum recommended ISET resistor value for MAX1558HETB-T?
The minimum recommended ISET resistor is 26kΩ, which programs a typical continuous current limit of 1.2A per channel. Using values below 26kΩ risks exceeding the device's maximum current rating and thermal limits. The datasheet explicitly warns against RISET < 26kΩ due to potential reliability degradation under sustained load conditions.
Does MAX1558HETB-T require external components for basic operation?
Yes-basic operation requires: (1) 0.1µF ceramic capacitor between INA/INB and GND; (2) 1µF ceramic capacitor at each OUTA/OUTB; (3) pull-up resistors (e.g., 100kΩ) from FLTA/FLTB to IN_; and (4) an ISET-to-GND resistor (26kΩ–60kΩ) to set current limit. No external FETs, diodes, or controllers are needed-the MAX1558HETB-T integrates all switching, protection, and monitoring functions.
MAX1558HETB-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- USB
- Interface:
- USB
- Voltage - Supply:
- 2.75V ~ 5.5V
- Supplier Device Package:
- 10-TDFN-EP (3x3)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
MAX1558HETB-T FAQ
1.How can I place an order for MAX1558HETB-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1558HETB-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 MAX1558HETB-T reliable?
The price and inventory of MAX1558HETB-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1558HETB-T is usually 5 days.
3.What payment methods are accepted for MAX1558HETB-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1558HETB-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1558HETB-T?
MAX1558HETB-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1558HETB-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 MAX1558HETB-T?
For technical support, including MAX1558HETB-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1558HETB-T requirements.
6.How does Aetrix verify that MAX1558HETB-T is sourced from the original manufacturer or authorized distributors?
All MAX1558HETB-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 MAX1558HETB-T meets industry standards.
7.What is the process for return or replacement of MAX1558HETB-T?
All MAX1558HETB-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1558HETB-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 MAX1558HETB-T part is unused and in its original packaging.
Return procedure for MAX1558HETB-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX1558HETB-T Tags
-
NVT4857UKAZ
NXP Semiconductors
-
TCA8418RTWR
Texas Instruments
-
PCA9546APWR
Texas Instruments
-
MD0100N8-G
Microchip Technology
-
PCA9548APW,118
NXP Semiconductors
-
PCA9540BDP,118
NXP Semiconductors
-
PCA9548APWR
Texas Instruments
-
PCA9546APW,118
NXP Semiconductors
-
PTN3360DBS,518
NXP Semiconductors
-
PCA9546ABS,118
NXP Semiconductors
-
PCA9518PWR
Texas Instruments
-
PCA9545APW,118
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
