Voltage - Output:	10V
Base Part Number:	TLC5948A
Supplier Device Package:	24-HTSSOP
Package / Case:	24-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Signage
Dimming:	--
Frequency:	--
Current - Output / Channel:	60mA
Series:	--
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	3V
Number of Outputs:	16
Internal Switch(s):	Yes
Topology:	Shift Register
Type:	Linear
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TLC5948APWPR Application Field and Working Principle

The TLC5948APWPR is a constant-current LED driver developed by Texas Instruments. Its main application field is in Pulse-Width Modulated (PWM) LED backlighting, in systems that require low power consumption. TI designed the TLC5948APWPR to be an efficient, compact, cost-effective solution for applications that require an LED display to be driven using PWM technology.The TLC5948APWPR offers constant-current regulation and is capable of being used in applications from 12 to 24V. It integrates 15 channels of drives and can be powered from two sources for higher efficiency in applications such as plate lighting, small appliances, and flat panel LCDs. LEDs can be connected directly to the output pins without the need for external components.The maximum current rating of the outputs is 2.5A, which is sufficient for most backlighting applications. The constant-current regulation ensures that the intensity of the LEDs is uniform across the display, eliminating the differences in brightness between LEDs connected to different drivers. The device also integrates a thermal-shutdown protection feature which prevents the device from overheating when it is subjected to excessive current.The TLC5948APWPR utilizes Pulse Width Modulation (PWM) and direct dimming (independent lighting control) technologies to control the output current, guaranteeing a uniform and flicker-free display performance. It features a programmable clock frequency range from 15kHz to 120kHz and supports a PWM intensity setting from 0 to 100%. The device can also be operated in a modeswitchable, low–current standby mode for reduced power consumption.The TLC5948APWPR is designed to be highly efficient and flexible. Its wide range of features and operation modes make it an ideal solution for a variety of applications. It is a cost effective solution for LED backlighting and can be used in applications from small appliances to large display panels. In summary, the TLC5948APWPR is an integrated solution for LED backlighting and displays. Its constant-current regulation provides uniform light intensity and prevents the LED connections from becoming dim over time. Its support for PWM, direct dimming, and low-current standby modes make it an economical and highly-efficient solution for applications that require a uniform and flicker-free display performance.

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