MAX1558HETB+ - Dual 1.2A USB Power Switch | Analog Devices
料号： MAX1558HETB+ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MAX1558HETB+ 概述
A USB power switch is a power-distribution interface IC placed between a system supply and a USB port. It regulates current delivered to a downstream device, isolates faults, and protects the host when a cable or load causes excessive current. The MAX1558 family is designed for compact USB power-distribution systems where limited board area, fault recovery, and controlled current behavior are important.
The MAX1558HETB+ supports a 2.7V to 5.5V operating range and offers programmable current limiting. The manufacturer describes the MAX1558 and MAX1558H as dual switches with autoreset that latch the channel off when a short persists for more than 20ms, then test the output and automatically restart after the short is removed. The MAX1558H designation also indicates the temperature-grade variant described in the manufacturer documentation.
Each channel is intended to deliver up to 1.2A, making the device suitable for USB power-distribution designs requiring independent two-channel protection. The 10-TDFN package is a compact no-lead surface-mount format with an exposed pad used for thermal management and PCB layout considerations. Exact continuous-current limits, current-limit accuracy, and thermal ratings should be confirmed against the manufacturer datasheet for the selected production variant.
Typical applications include USB hubs, USB battery-charging ports, portable-device power rails, industrial USB controllers, and dual-rail USB distribution boards. Designers should account for the voltage drop across the switch when calculating downstream power and verify current-limit settings, startup behavior, and thermal performance under worst-case load conditions.
The key design consideration is fault containment: the autoreset mechanism protects the system by removing a shorted channel after the specified delay, but the source rail must still have adequate protection for repeated fault events. Placement near the USB connectors can reduce trace resistance and improve fault-current behavior.
This page summarizes verified product positioning, package information, and sourcing data, while highlighting design checks that should be completed against the manufacturer datasheet and the completed board layout.
直接替换替代料： MAX1558HETB+ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
MAX1558HETB
✅ 直接替换📋 参考替代料（不在目录中）
MAX1558HETB-T
✅ 直接替换📋 参考替代料（不在目录中）
MAX15062AATA+T
✅ 直接替换📋 参考替代料（不在目录中）
MAX15062CATA+T
✅ 直接替换📋 参考替代料（不在目录中）
MAX1558HETB+ 最大额定值与电气特性
| Product Type | Dual current-limited USB power switch |
| Number of Channels | 2 |
| 工作电源电压 | 2.7V to 5.5V |
| Maximum Current per Channel | 1.2A |
| Current-Limit Function | Programmable current limiting |
| Fault Response | Autoreset after shorted output condition |
| Autoreset Short Threshold | 20ms |
| Output Fault Test | Output is tested after short removal |
| USB Interface Qualification | Designed for USB port applications |
| 封装 | 10-TDFN, 3mm x 3mm |
| Package Type | No-lead surface-mount package with exposed pad |
| Number of Terminals | 10 |
| Temperature Grade | Industrial |
| 安装类型 | Surface Mount |
| AEC-Q100 Qualification | Not applicable |
MAX1558HETB+ no-lead surface-mount package with exposed pad 引脚配置指南
MAX1558HETB+（no-lead surface-mount package with exposed pad 封装）的引脚配置。 该功率器件具有栅极、漏极和源极端子。对于无极性封装，请参阅制造商数据手册以了解确切的引脚 1 方向和封装尺寸细节。常见应用包括电源设计、电机驱动和负载开关。
暂无详细引脚数据： MAX1558HETB+.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MAX1558HETB+ 适用于 6 应用s: USB Hub Power Distribution, USB Battery-Charging Port, Portable Device Power Rail, Industrial USB Controller Board, Dual USB Port Power Hub, USB Test and Measurement Fixture.
USB Hub Power Distribution
The MAX1558HETB+ fits two protected USB power outputs because it combines two current-limited channels in a compact 10-TDFN 3 mm x 3mm package. Each channel is specified for up to 1.2A, allowing hub designers to define downstream current limits while retaining fault isolation between ports. The autoreset function is useful when a connected cable or device causes a persistent short. Place the switch close to the USB connector or power-entry path so the protected outputs have low trace resistance. Verify actual hub current, inrush behavior, thermal rise, and the required USB compliance limits against the manufacturer datasheet.
推荐
USB Battery-Charging Port
For USB battery-charging ports, the MAX1558HETB+ provides two independently protected power paths with programmable current limiting. The verified 2.7V-to-5.5V operating range supports common USB supply conditions, while the 1.2A-per-channel headline rating provides headroom for device charging. The autoreset behavior can isolate a faulted cable or downstream circuit after more than 20ms. The charger itself must still control the negotiated current and provide its own system-level protection. Confirm connector data-role behavior, current-limit programming, and all thermal conditions in the final design.
推荐
Portable Device Power Rail
The MAX1558HETB+ can protect a compact portable-device power rail when the downstream load is connected through a user-accessible USB cable. Its two-channel arrangement allows separate protection for power and accessory or data-adapter paths, while the 10-TDFN footprint supports space-constrained boards. Current limiting reduces the energy delivered during a wiring fault, and autoreset avoids leaving the rail permanently disabled after a transient short. Designers must still account for connector insertion transients, battery-source behavior, and the voltage drop across the switch at the selected current.
推荐
Industrial USB Controller Board
Industrial USB controller boards benefit from the MAX1558HETB+ when exposed USB ports require controlled fault behavior. The dual current-limited architecture protects two downstream outputs, while autoreset helps recover from disconnected or repaired cables without manual intervention. The industrial temperature-grade designation makes it relevant to equipment operating outside consumer-only temperature environments, although the exact temperature limits must be confirmed from the datasheet. Robust system design also requires upstream fuse or current-source coordination, ESD protection at the connector, and thermal verification under sustained maximum load.
推荐
Dual USB Port Power Hub
The MAX1558HETB+ is directly relevant to a two-port USB hub because it supplies two protected power channels in one small package. The 3 mm x 3mm 10-TDFN outline helps conserve board area compared with two discrete single-channel switches, although the exposed pad still needs adequate thermal design. Independent current limits can be selected according to each port's expected load. Because the verified information does not include the complete pinout or programming table, compare the device against the hub controller's power-tree requirements and validate each channel in hardware.
推荐
USB Test and Measurement Fixture
A USB test fixture can use the MAX1558HETB+ to protect the instrument's power source when a device under test has a faulty cable or load. The two channels allow separate limits for different test ports, and the autoretry behavior simplifies repeated fixture operation after a short is cleared. This use case is especially useful when the fixture is exposed to user-replaceable adapters. The protection network should be paired with connector-side ESD protection and carefully calibrated current instrumentation. Use the manufacturer data to confirm whether the programmed limit and short-duration behavior meet the fixture's safety requirements.
推荐
推荐产品汇总
工程参考数据： MAX1558HETB+ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MAX1558HETB | MAX1558HETB-T | MAX15062AATA+T | MAX15062CATA+T |
|---|---|---|---|---|---|
| Package | 10-TDFN (3x3) | 10-TDFN (3x3) - related form | 10-TDFN (3x3) - related form | 10-TDFN (3x3) - related family candidate | 10-TDFN (3x3) - related family candidate |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
关键差异点
- Two independently protected channels in one compact package （对比 MAX1558HETB)
- Fault recovery after downstream short removal （对比 MAX15062AATA+T)
- USB-focused dual-channel power switching （对比 MAX15062CATA+T)
设计说明
Choose the programmed current limit based on the lowest required USB load current, cable tolerance, and inrush behavior rather than the headline 1.2A rating. The verified data confirms programmable current limiting but does not provide the complete programming table, resistor values, or accuracy limits. Check those values in the manufacturer datasheet and validate startup with the highest expected capacitor and cable capacitance.
The MAX1558HETB+ dissipates power according to the voltage drop across the switch and the delivered current. The 10-TDFN package has a small thermal footprint, so provide adequate PCB copper around the exposed pad and avoid enclosing the device in an unventilated enclosure. Calculate worst-case dissipation from the actual input-output voltage difference and load current, then verify the resulting junction temperature using the manufacturer's thermal data.
Place the switch close to the USB connector or protected power branch to reduce trace resistance and improve the effectiveness of downstream fault isolation. Keep the exposed-pad thermal path clear of restrictive thermal relief and route power and ground connections with short, wide traces where possible. Verify the footprint against the manufacturer land pattern rather than inferring it only from the 10-TDFN package name.
Do not assume that autorest alone protects the entire system. A repeated downstream short can still stress the upstream supply, connector, and PCB traces, so coordinate the switch current limit with upstream current limiting and USB compliance requirements. Also confirm the complete pinout from the manufacturer datasheet; the verified distributor data identifies the 10-TDFN package but does not provide authoritative pin numbering.
合规信息
The verified sources identify the device as an industrial-grade Analog Devices component, but they do not provide RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. Compliance must be confirmed for the exact ordering code and package.
