TPS92692PWPR

Voltage - Supply (Max):	65V
Supplier Device Package:	20-HTSSOP
Package / Case:	20-PowerTSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Applications:	Lighting, Signage
Dimming:	Analog, PWM
Frequency:	80kHz ~ 800kHz
Current - Output / Channel:	--
Voltage - Output:	--
Series:	--
Voltage - Supply (Min):	4.5V
Number of Outputs:	1
Internal Switch(s):	No
Topology:	Step-Down (Buck), Step-Up (Boost)
Type:	DC DC Controller
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The TPS92692PWPR is a cost-effective power management integrated circuit (PMIC) designed for LED drivers, which offers full flexibility and control over the illumination of LEDs. It is an internet of things (IOT) device and it can provide up to 5A of current to a string of 5 LEDs. It includes two channels: a common channel and individual channels, with a flexible programming interface.

Key Features

The main features of the TPS92692PWPR are as follows: • It can drive strings up to 5 LEDs.• Three LED backlight modes: Cycle Mode, Dimming Mode, and Temperature Compensated Dimming (TCD).• High efficiency (up to 95%), with low input ripple current.• It can sense the indoor temperature and adjust the LED current brightness according to it.• Low EMI/RF radiation due to its low switching frequency (<200KHz).• It offers a high dimming ratio (256:1).• The maximum output current is 5A.

Application Field and Working Principle

The TPS92692PWPR is suitable for various indoor lighting purposes, such as TVs, LCD monitors, backlighted advertising boards, etc. It utilizes pulse-width modulation (PWM) to drive the LEDs with a controlled current. It also uses light-sensing to detect the level of ambient light and adjusts the LED current accordingly. When the light is dim, the LEDs will be driven at a maximum level, while if the lighting is bright, the current will be reduced.When the device is in Cycle Mode, the TPS92692PWPR will cycle through each string of LEDs, allowing the user to customize the backlight and select the desired brightness level. When the device is in Dimming Mode, the user can control the brightness and change the current of each LED string by adjusting the voltage.Meanwhile, the Temperature Compensated Dimming (TCD) mode will compensate the LED current in accordance to the ambient temperature, allowing the user to maintain desired illumination levels.

Conclusion

The TPS92692PWPR from Texas Instruments is an efficient PMIC device designed for LED applications that provides a cost-effective solution for LED drivers. Its features include a flexible programming interface, high efficiency and low input current ripple, high dimming ratio, up to 5A of output current, and temperature-compensated dimming. It is suitable for various indoor lighting applications and its low EMI/RF radiation makes it an optimal choice for LED applications.

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