TPS92380 Series

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

Catalog

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

Part	Dimming	Package / Case	Package / Case [custom]	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output [Max]	Voltage - Output [Min]	Current - Output / Channel	Supplier Device Package	Type	Internal Switch(s)	Voltage - Supply (Max) [Max]	Mounting Type	Applications	Frequency [Max]	Frequency [Min]	Grade	Number of Outputs	Voltage - Supply (Min) [Min]	Qualification
Texas Instruments TPS92380PWPR	PWM	20-PowerTSSOP	4.4 mm	0.173 in	-40 °C	125 °C	40 V	0 VDC	120 mA	20-HTSSOP	DC DC Regulator		45 V	Surface Mount	Backlight	2.2 MHz	300 kHz	Automotive	3	4.5 V	AEC-Q100

Catalog

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

Key Features

• 3-, 4-Channel 120-mA current sinksHigh dimming ratio of 10 000:1 at 100 HzCurrent matching 1% (typical)LED String current up to 120 mA per channelOutputs can be combined externally for higher current per stringIntegrated boost and SEPIC converter for LED string powerInput voltage operating range 4.5 V to 40 VOutput voltage up to 45 VIntegrated 3.3-A switch FETSwitching frequency 300 kHz to 2.2 MHzSwitching synchronization inputSpread spectrum for lower EMIFault detection and protectionFault outputInput voltage OVP, UVLO and OCPBoost block SW OVP and output OVPLED open and short fault detectionThermal shutdown3-, 4-Channel 120-mA current sinksHigh dimming ratio of 10 000:1 at 100 HzCurrent matching 1% (typical)LED String current up to 120 mA per channelOutputs can be combined externally for higher current per stringIntegrated boost and SEPIC converter for LED string powerInput voltage operating range 4.5 V to 40 VOutput voltage up to 45 VIntegrated 3.3-A switch FETSwitching frequency 300 kHz to 2.2 MHzSwitching synchronization inputSpread spectrum for lower EMIFault detection and protectionFault outputInput voltage OVP, UVLO and OCPBoost block SW OVP and output OVPLED open and short fault detectionThermal shutdown

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. 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.