Overview
The TPS2066CDR is a dual-channel, current-limited power switch from Texas Instruments, designed to provide reliable and efficient power management in various applications. This device is part of the TPS20xxC family, which offers multiple current-limit thresholds ranging from 0.5 A to 2 A. The TPS2066CDR is particularly suited for applications where heavy capacitive loads and short-circuits may be encountered, such as in USB ports, laptops, and high-definition digital TVs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Current Limit (IOS) | 1.28 | 1.61 | 1.94 | A |
| On-Resistance (rDS(on)) | 70 | 90 | 122 | mΩ |
| Operating Voltage Range | 4.5 | - | 5.5 | V |
| Ambient Temperature Range | -40 | - | 85 | °C |
| Short-Circuit Response Time | - | 2 | - | µs |
| Supply Current (ISD), Switch Disabled | 0.01 | - | 1 | µA |
| Supply Current (IS1E), Single Switch Enabled | 60 | - | 75 | µA |
| Output Pulldown Resistance (RPD) | 400 | 470 | 600 | Ω |
Key Features
- Accurate ±20% Current Limit Tolerance: Ensures predictable fault current under all conditions.
- Fast Overcurrent Response – 2 µs (Typical): Quickly responds to overcurrent conditions to protect the system.
- 70-mΩ (Typical) High-Side N-Channel MOSFET: Low on-resistance for efficient power switching.
- Reverse Current Blocking: Prevents backflow of current.
- Built-in Softstart: Minimizes current surges during turn-on and turn-off.
- Deglitched Fault Reporting (FLTx): Provides reliable fault indication.
- Selected Parts With and Without Output Discharge: Flexibility in output discharge behavior.
- Pin for Pin With Existing TI Switch Portfolio: Easy integration with existing designs.
Applications
- USB Ports or Hubs
- Laptops and Desktops
- High-Definition Digital TVs
- Set Top Boxes
- Short Circuit Protection
Q & A
- What is the current limit for the TPS2066CDR?
The current limit for the TPS2066CDR is between 1.28 A and 1.94 A, with a typical value of 1.61 A. - What is the operating voltage range of the TPS2066CDR?
The operating voltage range is from 4.5 V to 5.5 V. - How fast is the overcurrent response time?
The overcurrent response time is typically 2 µs. - Does the TPS2066CDR have reverse current blocking?
Yes, it does have reverse current blocking to prevent backflow of current. - What is the on-resistance of the TPS2066CDR?
The on-resistance (rDS(on)) is typically 90 mΩ, with a range of 70 mΩ to 122 mΩ. - What are the typical applications for the TPS2066CDR?
Typical applications include USB ports, laptops, desktops, high-definition digital TVs, and set top boxes. - Does the TPS2066CDR have built-in softstart?
Yes, it has built-in softstart to minimize current surges during turn-on and turn-off. - What is the ambient temperature range for the TPS2066CDR?
The ambient temperature range is from -40°C to 85°C. - Does the TPS2066CDR support deglitched fault reporting?
Yes, it supports deglitched fault reporting through the FLTx pin. - Is the TPS2066CDR pin-compatible with other TI switches?
Yes, it is pin-compatible with existing TI switch portfolios.
