Overview
The TPS54201DDCR is a 1.5-A synchronous buck LED driver produced by Texas Instruments. This device is part of the TPS5420x series and is designed to operate with a wide input voltage range of 4.5 V to 28 V. It is particularly suited for driving single-string or multi-string mono-color or Infrared (IR) LED arrays, such as those used in night vision cameras. The TPS54201DDCR integrates 150-mΩ and 70-mΩ MOSFETs, providing high power density and a small footprint on the PCB due to its SOT-23-THIN package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 to 28 | V |
| Output Current (Max) | 1.5 | A |
| Switching Frequency | 480 to 700 | kHz |
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | SOT-23-THIN | |
| Number of Pins | 6 | |
| Shutdown Current | 2 | µA |
| High-Side MOSFET Resistance | 150 | mΩ |
| Low-Side MOSFET Resistance | 70 | mΩ |
| Dimming Modes | Analog and PWM |
Key Features
- Wide input voltage range of 4.5 V to 28 V.
- Integrated 150-mΩ and 70-mΩ MOSFETs for high efficiency and continuous output current up to 1.5 A.
- Low shutdown current of 2 µA.
- Fixed 600-kHz switching frequency.
- Peak current mode with internal compensation.
- Precision analog dimming (ADIM) by PWM input and PWM dimming mode.
- LED-open and -short protection, sense-resistor-open and -short protection, and thermal shutdown.
- Auto-retry mode protection for the TPS54201 device).
- Small footprint SOT-23-THIN package).
Applications
The TPS54201DDCR is suitable for various applications, including:
- Driving single-string or multi-string mono-color or Infrared (IR) LED arrays).
- Night vision cameras and other low-light imaging devices).
- General LED lighting systems requiring high dimming accuracy and efficiency).
- Industrial and automotive lighting applications where a wide input voltage range is necessary).
Q & A
- What is the input voltage range of the TPS54201DDCR?
The input voltage range is from 4.5 V to 28 V).
- What is the maximum output current of the TPS54201DDCR?
The maximum output current is 1.5 A).
- What are the dimming modes supported by the TPS54201DDCR?
The device supports both analog and PWM dimming modes).
- What type of protection does the TPS54201DDCR offer?
The device includes LED-open and -short protection, sense-resistor-open and -short protection, thermal shutdown, and auto-retry mode protection).
- What is the switching frequency of the TPS54201DDCR?
The switching frequency ranges from 480 kHz to 700 kHz).
- What is the package type of the TPS54201DDCR?
The device is packaged in a 6-pin SOT-23-THIN package).
- What is the shutdown current of the TPS54201DDCR?
The shutdown current is 2 µA).
- Can the TPS54201DDCR be used in night vision cameras?
- What is the operating temperature range of the TPS54201DDCR?
The operating temperature range is from -40°C to 125°C).
- Is the TPS54201DDCR RoHS compliant?
