TPS92511DDAR - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

TPS92511DDAR
Manufacturer

TI
ChipWorker Part#

CW5383993
Category

LED Driver, LED Display Driver
Package

HSOP-8
Description

LED Driver 5V/9V/12V/15V/18V/24V 8Pin HSOP EP T/R
Documentation

Datasheet

TPS92511DDAR Global Supplier

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TPS92511DDAR Specifications

Attribute	Attribute Value

Part Number	TPS92511DDAR
Manufacturer	TI
ChipWorker Part#	CW5383993
Category	LED Driver, LED Display Driver
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	HSOP-8
Frequency	500 kHz
Number of Outputs	1 Output
Output Voltage	0.2V ~ 65V
Quiescent Current	2.80 mA
Number of Regulated Outputs	1 Output
Switching Frequency	500 kHz
Topology	Buck
Output Voltage (Max)	65 V
Output Voltage (Min)	0.2 V
Output Current (Max)	0.5 A
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
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Operating Temperature	-40℃ ~ 125℃ (TA)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

The TPS92511 is an easy to use 65V constant current buck converter for driving a single LED string with current up to 0.5A and efficiency up to 95%. Only 5 external components are required for basic operation and single layer PCB layout is feasible because of the integration of a N-MOSFET, no external current sensing resistor, no external compensation and the proper terminal assignment. A high-value external resistor programs the LED current so that fine tuning of the LED current can be achieved. Another high-value external resistor programs a constant switching frequency from 50kHz to 500kHz. EMI design becomes easier as a result of constant switching frequency. The TPS92511 provides a wide input voltage range from 4.5V to 65V. By adding simple external circuits, the device can handle applications with even higher input voltages.
The TPS92511 employs a proprietary control scheme to regulate the LED current without the need of sensing the LED current directly. It applies a floating buck topology with a low-side N-channel power MOSFET, which does not need boot-strapping capacitor. For multiple channel systems, the floating buck topology together with the proprietary control scheme allows a common-anode connection of the LED strings without an external current sensing network. This significantly reduces the number of wiring and as well as overall manufacturing cost.
The TPS92511 has very fast PWM dimming response time. For example, if the switching frequency is 500 kHz, the minimum DIM pulse width is 6µs and the dimming frequency is 150Hz, a contrast ratio of more than 1000:1 can be achieved.
The TPS92511 is available in the Power Enhanced SOIC-8 exposed thermal pad package.

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