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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 40MA 28HTSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Bulk,Tube
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：17V
- Current - Output / Channel：40mA
- Frequency：30MHz
- Dimming：-
- Applications：Backlight, Signage
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-PowerTSSOP (0.173", 4.40mm Width)
- Supplier Device Package：28-HTSSOP
- Grade：-
- Qualification：-
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Overview
The TLC59461PWP is a Texas Instruments LED driver IC featuring 16 channels with 12-bit PWM dimming and 6-bit dot correction. It operates within a supply voltage range of 3V to 5.5V, delivering up to 40mA per channel. The device utilizes a serial interface for data input and includes an Auto Output Off function for safety. Packaged in a 28-pin HTSSOP, it supports external current setting via a single resistor.
Feature Summary
- Integrates 12-bit PWM dimming resolution for precise brightness control across all channels
- Provides 6-bit dot correction capability to ensure uniform LED color and intensity
- Includes Auto Output Off function to disable outputs upon detection of specific fault conditions
Applications
- LED display panels requiring high-resolution grayscale
- Backlighting systems for LCD modules
- General-purpose LED indicator arrays
Procurement Notes
Verify the exact package marking and date code against the manufacturer's latest documentation. Confirm that the component meets RoHS compliance standards required for your assembly process. Check for any recent product change notifications regarding pinout or electrical characteristics before finalizing the design.
Selection Notes
Select this component when 16-channel independent control with high-resolution dimming is necessary. The integrated dot correction simplifies calibration compared to standard PWM drivers. Ensure the application board can accommodate the thermal requirements associated with driving multiple LEDs at full current simultaneously.
Part Context
This part belongs to the TLC5946 family of LED drivers from Texas Instruments. It shares architectural similarities with the TLC5946 but adds specific features like dot correction and auto-off functionality. It is designed for applications demanding consistent visual performance without complex external calibration hardware.
Replacement Considerations
The TLC5946PW is a related component but lacks dot correction and may have different electrical specifications. Verify compatibility if substituting, as pinouts and functional capabilities differ. No direct drop-in replacements are confirmed in public documentation.
