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Product Detailed Parameters
- Description：IC LED DRVR LINEAR 60MA 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：3V ~ 15V
- Current - Output / Channel：60mA
- Frequency：30MHz
- Dimming：-
- Applications：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 TLC5944PWP is a 16-channel LED display driver manufactured by Texas Instruments, housed in a 28-pin HTSSOP package. It provides 12-bit PWM grayscale control and 6-bit dot correction for each channel. The device operates on a supply voltage ranging from 3 V to 5.5 V with a maximum power supply current of 60 mA. It supports an operating temperature range from -40°C to +85°C and features a pre-charge FET for external current setting.
Feature Summary
- Integrates 12-bit PWM grayscale control and 6-bit dot correction for precise per-channel brightness adjustment.
- Includes fault detection capabilities such as error flags for open or shorted LEDs.
- Utilizes a single external resistor to set the output current for all channels simultaneously.
Applications
- LED matrix displays requiring high-resolution grayscale control
- Backlighting systems for LCD panels
- General-purpose constant current LED sinks
Procurement Notes
Verify the specific package variant matches the HTSSOP-28 footprint requirements for your PCB layout. Confirm that the component meets RoHS compliance standards if required by your manufacturing regulations. Ensure the operating environment stays within the specified -40°C to +85°C temperature range to maintain performance reliability.
Selection Notes
Select this component when 16 independent constant current sinks with high-resolution PWM control are needed. It is suitable for designs requiring dot correction to compensate for LED manufacturing variations. Consider the thermal dissipation limits and ensure adequate heat sinking if driving high-power LEDs near the maximum current ratings.
Part Context
This part belongs to the TLC5944 series of LED drivers from Texas Instruments. It is designed to interface with microcontrollers via serial data inputs to control multiple LEDs efficiently. The device simplifies the design of complex lighting applications by integrating both grayscale and dot correction functions into a single IC.
Replacement Considerations
The TLC5944PWPR is the tape-and-reel version of this component, offering identical electrical specifications and functionality. Verify pin compatibility and package dimensions before substituting between tube and reel packaging formats.
