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See Technical Specifications

TPS92380PWPR

45-V LED backlight driver with three channels 120-mA output

Manufacturer:

Texas Instruments
Mfr.Part #:

TPS92380PWPR
Datasheet:

TPS92380PWPR Datasheet (PDF)
Series:

TPS92380
Mounting Style:

SMD/SMT
Number of Outputs:

3 Output
Output Current:

120 mA
EDA/CAD Models:

Request Free CAD Models for TPS92380PWPR

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TPS92380PWPR General Description

The TPS92380, TPS92381 is a highly-integrated, high output power, easy-to-use LED driver with DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four or three high-precision current sinks that can be combined for higher current capability.

The DC-DC converter has adaptive output voltage control based on the LED forward voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the TPS9238x to avoid disturbance for sensitive frequency band.

The input voltage range for the TPS9238x is from 4.5 V to 40 V . The TPS9238x integrates extensive fault detection features.

Key Features

3-, 4-Channel 120-mA current sinks
- High dimming ratio of 10 000:1 at 100 Hz
- Current matching 1% (typical)
- LED String current up to 120 mA per channel
- Outputs can be combined externally for higher current per string
Integrated boost and SEPIC converter for LED string power
- Input voltage operating range 4.5 V to 40 V
- Output voltage up to 45 V
- Integrated 3.3-A switch FET
- Switching frequency 300 kHz to 2.2 MHz
- Switching synchronization input
- Spread spectrum for lower EMI
Fault detection and protection
- Fault output
- Input voltage OVP, UVLO and OCP
- Boost block SW OVP and output OVP
- LED open and short fault detection
- Thermal shutdown

Specifications

Product Category	LED Lighting Drivers	Series	TPS92380
Mounting Style	SMD/SMT	Number of Outputs	3 Output
Output Current	120 mA	Input Voltage, Min	4.5 V
Input Voltage, Max	40 V	Topology	Boost, Buck
Operating Frequency	300 kHz to 2.2 MHz	Output Voltage	40 V
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 125 C
Features	Fault Detection and Protection, Programmable Output Current, PWM Control, Thermal Shutdown	Dimming	With Dimming
Input Voltage	4.5 V to 40 V	Moisture Sensitive	Yes
Number of Channels	3 Channel	Product	LED Backlight Drivers
Product Type	LED Lighting Drivers	Factory Pack Quantity	2000
Subcategory	Driver ICs	Supply Current - Max	12 mA
Type	Inductive