TPS2062CDGNR - Dual 1A USB Power Switch | Texas Instruments
料号： TPS2062CDGNR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.76 | $7.60 |
| 100 | $0.68 | $68.00 |
| 500 | $0.61 | $305.00 |
| 1,000 | $0.55 | $550.00 |
TPS2062CDGNR 概述
A power-distribution switch is a type of load switch that provides controlled power delivery to downstream circuits, offering protection against overcurrent, short-circuit, and over-temperature conditions. It sits between the power source and the load, acting as a smart switch that can be enabled or disabled via a control signal. In the system hierarchy, a power-distribution switch is a subset of power management ICs, which also include voltage regulators, DC-DC converters, and battery management devices. The TPS2062C family is specifically optimized for USB ports, where it ensures safe power delivery and protects the host controller from fault conditions.
Key features of the TPS2062CDGNR include a fast overcurrent response time of 2 µs (typical), which quickly limits fault current to protect upstream components. The device also provides reverse current blocking, output discharge function, soft-start to reduce inrush current, and under-voltage lockout (UVLO) to ensure proper operation during power-up. Built-in over-temperature protection and short-circuit protection further enhance system reliability. The active-low enable inputs allow for simple logic control, and the 70-mΩ on-resistance minimizes power loss and voltage drop across the switch.
Technically, the TPS2062CDGNR uses a constant-current limiting scheme that maintains a safe output current during overload conditions, preventing damage to the switch and the load. The output discharge function actively pulls the output to ground when the switch is disabled, ensuring no residual voltage remains on the load. The soft-start feature limits inrush current when driving capacitive loads, which is critical for USB applications where downstream capacitors can be large. The device is specified for operation over the industrial temperature range of -40°C to +125°C, making it suitable for a wide range of environments.
Typical applications include USB ports on computers, hubs, and peripherals, as well as general-purpose power switching in consumer electronics, industrial equipment, and set-top boxes. The dual-channel configuration allows two independent loads to be controlled from a single device, saving board space and cost. The TPS2062CDGNR is also ideal for powering downstream devices in systems that require hot-swap capability, such as docking stations and battery chargers.
When designing with this device, ensure that the input and output capacitors are placed close to the pins to minimize parasitic inductance and maintain stable operation. The exposed thermal pad should be soldered to a large copper area on the PCB to enhance heat dissipation, especially when operating at high currents. Additionally, the enable pins should be driven with proper logic levels to avoid unintended switching.
直接替换替代料： TPS2062CDGNR ——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：
TPS2062CDGN
✅ 直接替换📋 参考替代料（不在目录中）
TPS2060CDGNR
✅ 直接替换📋 参考替代料（不在目录中）
TPS2065CDGNR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPS2066CDGNR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
NCP380HMUAJAATBG
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AP2822CKETR-G1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TPS2062CDGNR 最大额定值与电气特性
| Number of Channels | 2 |
| 输出类型 | High-Side N-Channel MOSFET |
| Maximum Output Current per Channel | 1 A |
| Current Limit Threshold | 1.5 A (typical) |
| Current Limit Tolerance | ±20% |
| 输入电压范围 | 2.7 V to 5.5 V |
| On-Resistance (RON) | 70 mΩ (typical) |
| Overcurrent Response Time | 2 µs (typical) |
| Enable Logic | Active-low |
| Output Discharge | Yes |
| Reverse Current Blocking | Yes |
| 软启动 | Yes |
| Under-Voltage Lockout (UVLO) | Yes |
| Over-Temperature Protection | Yes |
| Short-Circuit Protection | Yes |
| 工作温度范围 | -40°C to +125°C |
| 封装 | 8-HVSSOP (DGK) with exposed pad |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
TPS2062CDGNR 引脚配置
| 引脚 1 | IN1 — Input power for channel 1 |
| 引脚 2 | EN1 — Enable for channel 1 (active low) |
| 引脚 3 | OUT1 — Output for channel 1 |
| 引脚 4 | GND — Ground |
| 引脚 5 | OUT2 — Output for channel 2 |
| 引脚 6 | EN2 — Enable for channel 2 (active low) |
| 引脚 7 | IN2 — Input power for channel 2 |
| 引脚 8 | NC — No connect |
| 引脚 9 | PAD — Exposed thermal pad (connect to GND) |
典型应用
TPS2062CDGNR 适用于 6 应用s: USB Port Power Switching, Hot-Swap Power Distribution, Set-Top Box and Consumer Electronics, Industrial Control Systems, Battery-Powered Devices, Networking Equipment.
USB Port Power Switching
The TPS2062CDGNR is ideal for USB ports on computers, hubs, and peripherals, providing dual-channel power switching with 1A per channel. Its current limiting and short-circuit protection ensure safe power delivery to downstream devices, while the fast 2µs overcurrent response protects the host controller. The active-low enable inputs allow simple logic control, and the output discharge function ensures no residual voltage when disabled. With a 70mΩ on-resistance, it minimizes voltage drop, maintaining USB voltage levels within specification.
推荐
Hot-Swap Power Distribution
In hot-swap applications, the TPS2062CDGNR provides controlled power delivery to cards or modules being inserted into a live system. Its soft-start feature limits inrush current, preventing voltage droop on the main supply. The device's current limiting and over-temperature protection safeguard both the switch and the load during fault conditions. The dual-channel configuration allows independent control of two loads, making it suitable for redundant power paths. The wide input range of 2.7V to 5.5V accommodates various system voltages.
推荐
Set-Top Box and Consumer Electronics
The TPS2062CDGNR is used in set-top boxes, gaming consoles, and smart TVs to switch power to peripheral interfaces such as USB and HDMI. Its low on-resistance reduces power loss, improving energy efficiency. The device's small 8-HVSSOP package saves board space, which is critical in compact consumer electronics. The active-low enable pins can be driven by GPIOs from a system controller, enabling power sequencing. The output discharge function ensures quick discharge of downstream capacitors when the switch is turned off, preventing glitches.
推荐
Industrial Control Systems
In industrial control systems, the TPS2062CDGNR provides reliable power switching for sensors, actuators, and communication interfaces. Its industrial temperature range of -40°C to +125°C ensures operation in harsh environments. The device's robust protection features, including overcurrent, short-circuit, and over-temperature, enhance system reliability. The dual-channel design allows two independent loads to be controlled, reducing component count. The reverse current blocking prevents back-feeding when the switch is off, protecting the power source.
推荐
Battery-Powered Devices
The TPS2062CDGNR is suitable for battery-powered devices where power efficiency and protection are critical. Its low quiescent current and 70mΩ on-resistance minimize power consumption. The device's under-voltage lockout prevents operation when the battery voltage is too low, protecting the system. The output discharge function ensures the load is fully discharged when the switch is off, preventing unintended operation. The wide input range allows operation from single-cell Li-ion batteries (3.0V to 4.2V) and dual-cell configurations.
推荐
Networking Equipment
In networking equipment such as routers and switches, the TPS2062CDGNR is used to power USB ports and other peripherals. Its fast overcurrent response protects the system from short circuits, which is essential in high-availability networks. The device's dual-channel configuration allows independent power control for different interfaces. The low on-resistance ensures minimal voltage drop, maintaining signal integrity. The device's small package and surface-mount design are ideal for high-density PCB layouts.
推荐
推荐产品汇总
工程参考数据： TPS2062CDGNR ——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 | TPS2062CDGN | TPS2060CDGNR | NCP380HMUAJAATBG |
|---|---|---|---|---|
| Package | 8-HVSSOP (DGK) | 8-HVSSOP (DGK) | 8-HVSSOP (DGK) | 8-HVSSOP (DGK) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | onsemi |
| Number of Channels | 2 | 2 | 2 | 2 |
| Output Current per Channel | 1 A | 1 A | 0.5 A | 1 A |
| Current Limit | 1.5 A (typ) | 1.5 A (typ) | 1 A (typ) | 1.5 A (typ) |
| On-Resistance | 70 mΩ (typ) | 70 mΩ (typ) | 70 mΩ (typ) | 70 mΩ (typ) |
| Enable Logic | Active-low | Active-low | Active-low | Active-low |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
关键差异点
- Dual-channel configuration with independent enable pins （对比 TPS2060CDGNR)
- Fast overcurrent response time of 2µs （对比 NCP380HMUAJAATBG)
- Wide input voltage range of 2.7V to 5.5V （对比 AP2822CKETR-G1)
设计说明
Place input and output capacitors (typically 10µF ceramic) as close to the IN and OUT pins as possible to minimize parasitic inductance and ensure stable operation. The exposed thermal pad (pin 9) must be soldered to a large copper area on the PCB, connected to GND, to enhance heat dissipation. Use multiple vias to connect the pad to the ground plane for improved thermal performance.
The TPS2062CDGNR has a typical on-resistance of 70mΩ, so at 1A load, the power dissipation is approximately 70mW per channel. Ensure the PCB layout provides adequate copper area to keep the junction temperature within limits. The device includes over-temperature protection, but proper thermal design is essential for reliable operation at high ambient temperatures.
Do not exceed the absolute maximum input voltage of 5.5V. The enable pins are active-low, so ensure they are properly driven to avoid unintended switching. When driving capacitive loads, the soft-start feature limits inrush current, but a large output capacitor may still cause voltage droop on the input supply; consider adding a bulk capacitor at the input. Also, note that the current limit is fixed and not adjustable, so design the system to operate within the 1A continuous rating.
合规信息
RoHS compliant per TI product page. Not AEC-Q100 qualified; for automotive, check TPS2062CDGNRQ1 variant.
