Overview
The TPS61194PWPRQ1 is a high-performance, low-EMI, 4-channel LED driver designed for automotive lighting applications. Manufactured by Texas Instruments, this device is part of the AEC-Q100 qualified series, ensuring reliability and compliance with automotive standards. It features an integrated DC-DC converter that supports both boost and SEPIC modes, making it versatile for various LED lighting configurations. The device is optimized for minimal external component count and includes extensive fault detection features to enhance system reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Case/Package | 20-HTSSOP | |
| Dimming | PWM | |
| Frequency | 300 kHz ~ 2.2 MHz | |
| Height | 1.2 mm | |
| Lead Free | Yes | |
| Length | 6.5 mm | |
| Lifecycle Status | Production | |
| Max Operating Temperature | 125°C | |
| Max Supply Voltage | 40 V | |
| Min Operating Temperature | -40°C | |
| Mount | Surface Mount | |
| Number of Channels | 4 | |
| Number of Outputs | 4 | |
| Number of Pins | 20 | |
| Output Current per Channel | 100 mA | |
| Output Voltage | 45 V | |
| RoHS | Compliant | |
| Topology | Boost, SEPIC | |
| Width | 4.4 mm |
Key Features
- AEC-Q100 Qualified: Ensures the device meets automotive reliability standards.
- Integrated DC-DC Converter: Supports both boost and SEPIC modes for flexible LED string power management.
- High-Precision Current Sinks: Four channels with current matching of 1% (typical) and up to 100 mA per channel.
- PWM Dimming: High dimming ratio of 10,000:1 at 100 Hz with PWM input frequency range from 100 Hz to 20 kHz.
- EMI Reduction: Features spread spectrum and external synchronization input to minimize EMI noise.
- Extensive Fault Detection: Includes input voltage OVP and UVLO, open and shorted LED fault detection, and thermal shutdown.
- Adaptive Output Voltage Control: Automatically adjusts output voltage to the minimum necessary level to drive the LED strings, optimizing power consumption.
- Minimum External Components: Simplified schematic with fewer external components required.
Applications
- Automotive Infotainment: Suitable for automotive instrument clusters, smart mirrors, heads-up displays (HUD), and central information displays (CID).
- Backlighting: Ideal for backlighting in automotive and industrial applications, including LCD displays and control panels.
- Industrial Lighting: Used in industrial backlighting systems, industrial PCs, and test and measurement equipment.
Q & A
- What is the operating temperature range of the TPS61194PWPRQ1?
The operating temperature range is from -40°C to 125°C.
- What is the maximum supply voltage for the TPS61194PWPRQ1?
The maximum supply voltage is 40 V.
- How many channels does the TPS61194PWPRQ1 have?
The device has four channels.
- What is the output current per channel for the TPS61194PWPRQ1?
The output current per channel is up to 100 mA.
- Does the TPS61194PWPRQ1 support PWM dimming?
Yes, it supports PWM dimming with a high dimming ratio of 10,000:1 at 100 Hz.
- What are the EMI reduction features of the TPS61194PWPRQ1?
The device features spread spectrum and external synchronization input to reduce EMI noise.
- What fault detection features does the TPS61194PWPRQ1 have?
The device includes input voltage OVP and UVLO, open and shorted LED fault detection, and thermal shutdown.
- Is the TPS61194PWPRQ1 RoHS compliant?
Yes, the device is RoHS compliant.
- What is the topology of the DC-DC converter in the TPS61194PWPRQ1?
The DC-DC converter supports both boost and SEPIC modes.
- What is the package type of the TPS61194PWPRQ1?
The package type is 20-HTSSOP.
