LT8393JUFDM#PBF

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Analog Devices Inc./Maxim Integrated

60VIN, 100VOUTSYNCHRONOUS 4-SWITCH BUCK-BOOST LED DRIVER CONTROLLER WITH LOW EMI

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LT8393JUFDM#PBF

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Analog Devices Inc./Maxim Integrated

60VIN, 100VOUTSYNCHRONOUS 4-SWITCH BUCK-BOOST LED DRIVER CONTROLLER WITH LOW EMI

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT8393 Series

The LT8393 is a synchronous 4-switch buck-boost LED controller that regulates LED current from input voltage above, below, or equal to the output voltage. The proprietary peak-buck peak-boost current mode control scheme allows adjustable and synchronizable 350kHz to 2MHz fixed frequency operation, or internal 25% triangle spread spectrum operation for low EMI. With 4V to 60V input, 0V to 100V output, and seamless low noise transitions between operation regions, the LT8393 is ideal for LED driver and battery charger applications in automotive, industrial, and battery-powered systems.The LT8393 provides both internal (up to 128:1) and external (up to 2000:1) LED current PWM dimming with 10V of high side PMOS gate drive. The CTRL pin provides flexible 20:1 analog dimming with ±3% LED current accuracy at 100mV full scale. Fault protection is provided to detect an open or short LED condition, during which the LT8393 retries, latches off, or keeps running.APPLICATIONSAutomotive Head Lamps/Running LampsHigh Voltage LED Lighting

Technical Specifications

Parameters and characteristics for this part

Specification	LT8393JUFDM#PBF

Applications	Lighting
Dimming	PWM, Analog
Frequency Range 1 (Max)	2 MHz
Frequency Range 1 (Min)	350 kHz
Grade	Automotive
Internal Switch(s)	Yes
Mounting Type	Wettable Flank, Surface Mount
Number of Outputs	1
Operating Temperature (Max)	150 °C
Operating Temperature (Min)	-40 °C
Package / Case	28-WFQFN Exposed Pad
Package Length	4 mm
Package Name	28-QFN
Package Width	5 mm
Qualification	AEC-Q100
Topology	Step-Up (Boost), Step-Down (Buck)
Type	DC DC Controller
Voltage - Output (Max)	100 V
Voltage - Output (Min)	0 V
Voltage - Supply (Max)	60 V
Voltage - Supply (Min)	4 V

LT8393 Series

Part	Operating Temperature (Max)	Operating Temperature (Min)	Package Width	Package Name	Package Features	Package Length	Applications	Dimming	Qualification	Number of Outputs	Grade	Internal Switch(s)	Type	Voltage - Supply (Min)	Voltage - Output (Max)	Mounting Type	Voltage - Supply (Max)	Topology	Frequency Range 1 (Min)	Frequency Range 1 (Max)	Package / Case
Analog Devices Inc./Maxim Integrated LT8393EFE#PBF	125 °C	-40 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Lighting	Analog PWM	AEC-Q100	1	Automotive	Yes	DC DC Controller	4 V	100 V	Surface Mount	60 V	Step-Down (Buck) Step-Up (Boost)	350 kHz	2 MHz
Analog Devices Inc./Maxim Integrated LT8393HUFDM#TRPBF	150 °C	-40 °C	5 mm	28-QFN		4 mm	Lighting	Analog PWM	AEC-Q100	1	Automotive	Yes	DC DC Controller	4 V	100 V	Surface Mount Wettable Flank	60 V	Step-Down (Buck) Step-Up (Boost)	350 kHz	2 MHz	28-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT8393JFE#PBF	150 °C	-40 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Lighting	Analog PWM	AEC-Q100	1	Automotive	Yes	DC DC Controller	4 V	100 V	Surface Mount	60 V	Step-Down (Buck) Step-Up (Boost)	350 kHz	2 MHz
Analog Devices Inc./Maxim Integrated LT8393EFE#TRPBF	125 °C	-40 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Lighting	Analog PWM	AEC-Q100	1	Automotive	Yes	DC DC Controller	4 V	100 V	Surface Mount	60 V	Step-Down (Buck) Step-Up (Boost)	350 kHz	2 MHz
Analog Devices Inc./Maxim Integrated LT8393JUFDM#TRPBF	150 °C	-40 °C	5 mm	28-QFN		4 mm	Lighting	Analog PWM	AEC-Q100	1	Automotive	Yes	DC DC Controller	4 V	100 V	Surface Mount Wettable Flank	60 V	Step-Down (Buck) Step-Up (Boost)	350 kHz	2 MHz	28-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT8393HFE#TRPBF	150 °C	-40 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Lighting	Analog PWM	AEC-Q100	1	Automotive	Yes	DC DC Controller	4 V	100 V	Surface Mount	60 V	Step-Down (Buck) Step-Up (Boost)	350 kHz	2 MHz
Analog Devices Inc./Maxim Integrated LT8393HUFDM#PBF	150 °C	-40 °C	5 mm	28-QFN		4 mm	Lighting	Analog PWM	AEC-Q100	1	Automotive	Yes	DC DC Controller	4 V	100 V	Surface Mount Wettable Flank	60 V	Step-Down (Buck) Step-Up (Boost)	350 kHz	2 MHz	28-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT8393EUFDM#PBF	125 °C	-40 °C	5 mm	28-QFN		4 mm	Lighting	Analog PWM	AEC-Q100	1	Automotive	Yes	DC DC Controller	4 V	100 V	Surface Mount Wettable Flank	60 V	Step-Down (Buck) Step-Up (Boost)	350 kHz	2 MHz	28-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT8393EUFDM#TRPBF	125 °C	-40 °C	5 mm	28-QFN		4 mm	Lighting	Analog PWM	AEC-Q100	1	Automotive	Yes	DC DC Controller	4 V	100 V	Surface Mount Wettable Flank	60 V	Step-Down (Buck) Step-Up (Boost)	350 kHz	2 MHz	28-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT8393JFE#TRPBF	150 °C	-40 °C	4.4 mm	28-TSSOP 28-TSSOP-EP	Exposed Pad	0.173 in	Lighting	Analog PWM	AEC-Q100	1	Automotive	Yes	DC DC Controller	4 V	100 V	Surface Mount	60 V	Step-Down (Buck) Step-Up (Boost)	350 kHz	2 MHz

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Package Drawing - 28-Lead QFN (4mm x 5mm, Plastic Side Wettable)

DC2865A - Demo Manual (Rev.0)

LT8393: 60VIN, 100VOUTSynchronous 4-Switch Buck-Boost LED Driver Controller with Low EMI Data Sheet (Rev.B)