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Product Detailed Parameters
- Description：IC LED DRV LIN PWM 45MA 24HTSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Linear
- Topology：Shift Register
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：3.6V
- Voltage - Output：10V
- Current - Output / Channel：45mA
- Frequency：33MHz
- Dimming：PWM
- Applications：Signage
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-PowerTSSOP (0.173", 4.40mm Width)
- Supplier Device Package：24-HTSSOP
- Grade：-
- Qualification：-
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Overview
The TLC5949PWPR is a Texas Instruments LED lighting driver IC featuring 16 channels with 12-bit ES-PWM grayscale control. It operates on a 3V to 3.6V supply, delivering up to 45mA per channel in an HTSSOP-24 package. The device utilizes a boost topology for outputs reaching 10V and supports a 33MHz clock frequency within a -40°C to +85°C range.
Feature Summary
- Integrates internal grayscale clock and PWM generation for precise LED brightness control
- Includes thermal shutdown protection to ensure operational safety under high load conditions
- Supports serial data input for efficient daisy-chaining of multiple driver units
Applications
- LED backlighting systems for displays
- General-purpose LED illumination drivers
- Portable electronic devices requiring low-voltage LED control
Procurement Notes
Verify the specific suffix 'PWPR' corresponds to the HTSSOP-24 package and tape-and-reel shipping configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design accounts for the specified 3V to 3.6V operating voltage range and thermal management requirements for the selected application environment.
Selection Notes
Select this component when 16-channel constant current control with 12-bit resolution is required. It is suitable for designs needing a compact HTSSOP-24 footprint and operation from a single low-voltage supply. Consider alternative models if higher output currents or different package types are necessary for the target application constraints.
Part Context
This part belongs to the TLC5949 series of LED drivers from Texas Instruments. It is designed to provide flexible LED control solutions for various consumer and industrial electronics. The PWPR designation indicates the specific surface-mount packaging and reel quantity configuration offered by the manufacturer for automated assembly processes.
Replacement Considerations
Consult official substitution guides for compatible alternatives such as the TLC5947 or TLC5940 series, ensuring pinout and electrical specifications match the existing design requirements.
