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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 20HTSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：SEPIC, Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：4
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：40V
- Voltage - Output：45V
- Current - Output / Channel：100mA
- Frequency：300kHz ~ 2.2MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-PowerTSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-HTSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The TPS61194PWPRQ1 is a low-EMI automotive LED driver featuring four independent 100-mA channels. It integrates a DC-DC boost converter with an input voltage range of 8 V to 30 V and supports output voltages up to 45 V. The device operates at a switching frequency between 300 kHz and 2.2 MHz. It provides PWM dimming control, short circuit protection, and thermal shutdown. Qualified under AEC-Q100 Grade 1 for ambient temperatures from -40°C to +125°C, it is housed in a 20-pin HTSSOP package.
Feature Summary
- Integrates a low electromagnetic interference (EMI) DC-DC boost converter
- Provides four independent current-controlled output channels
- Supports precise pulse-width modulation (PWM) dimming
- Includes comprehensive protection against short circuits and thermal overload
Applications
- Automotive exterior lighting systems
- Interior cabin illumination
- Dashboard and instrument cluster backlighting
- Ambient mood lighting modules
Procurement Notes
Verify the specific suffix 'PWPRQ1' matches the required package type and tape-and-reel quantity. Confirm that the AEC-Q100 Grade 1 qualification aligns with your vehicle's thermal requirements. Ensure the design accounts for the specified switching frequency range to manage EMI compliance effectively during integration.
Selection Notes
Select this component when designing automotive LED circuits requiring low electromagnetic interference and high efficiency. It is suitable for applications needing multiple independent channels with precise current regulation. Consider its wide input voltage range and robust protection features for reliable operation in harsh automotive environments.
Part Context
This part belongs to the TPS61194-Q1 family of automotive LED drivers. It shares core functionality with other members like the TPS61196 and TPS61199 but differs in channel count and current capabilities. The series is designed specifically for automotive white LED applications requiring strict EMI limits and high reliability standards.
Replacement Considerations
Direct substitutes include TPS61194PWPRQ1.A. For higher current needs, consider the TPS61196PWPRQ1. Verify pin compatibility and thermal performance before swapping with non-automotive grade variants.
