Specification	LT8315HFE#TRPBF

Current - Output	800 mA
Frequency - Switching [Max]	140 kHz
Frequency - Switching [Min]	220 Hz
Function	Step-Down, Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Isolation Capable, Positive
Package / Case	Exposed Pad, 16 Leads, 20-TSSOP
Package / Case	4.4 mm, 0.173 "
Supplier Device Package	20-TSSOP-EP
Synchronous Rectifier	False
Topology	Flyback
Voltage - Input (Max) [Max]	560 V
Voltage - Input (Min) [Min]	18 V

LT8315 Series

560VINMicropower No-Opto Isolated Flyback Converter with 630V/300mA Switch

Part	Frequency - Switching [Min]	Frequency - Switching [Max]	Current - Output	Topology	Number of Outputs	Output Configuration	Voltage - Input (Min) [Min]	Function	Mounting Type	Package / Case	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Max) [Max]	Supplier Device Package
Analog Devices Inc./Maxim Integrated LT8315HFE#TRPBF	220 Hz	140 kHz	800 mA	Flyback	1	Isolation Capable Positive	18 V	Step-Down Step-Up/Step-Down	Surface Mount	16 Leads 20-TSSOP Exposed Pad	0.173 " 4.4 mm	-40 °C	150 °C	560 V	20-TSSOP-EP
Analog Devices Inc./Maxim Integrated LT8315EFE#TRPBF	220 Hz	140 kHz	800 mA	Flyback	1	Isolation Capable Positive	18 V	Step-Down Step-Up/Step-Down	Surface Mount	16 Leads 20-TSSOP Exposed Pad	0.173 " 4.4 mm	-40 C	125 °C	560 V	20-TSSOP-EP
Analog Devices Inc./Maxim Integrated LT8315HFE#PBF	220 Hz	140 kHz	800 mA	Flyback	1	Isolation Capable Positive	18 V	Step-Down Step-Up/Step-Down	Surface Mount	16 Leads 20-TSSOP Exposed Pad	0.173 " 4.4 mm	-40 °C	150 °C	560 V	20-TSSOP-EP
Analog Devices Inc./Maxim Integrated LT8315EFE#PBF	220 Hz	140 kHz	800 mA	Flyback	1	Isolation Capable Positive	18 V	Step-Down Step-Up/Step-Down	Surface Mount	16 Leads 20-TSSOP Exposed Pad	0.173 " 4.4 mm	-40 C	125 °C	560 V	20-TSSOP-EP
Analog Devices Inc./Maxim Integrated LT8315IFE#PBF	220 Hz	140 kHz	800 mA	Flyback	1	Isolation Capable Positive	18 V	Step-Down Step-Up/Step-Down	Surface Mount	16 Leads 20-TSSOP Exposed Pad	0.173 " 4.4 mm	-40 C	125 °C	560 V	20-TSSOP-EP
Analog Devices Inc./Maxim Integrated LT8315IFE#TRPBF	220 Hz	140 kHz	800 mA	Flyback	1	Isolation Capable Positive	18 V	Step-Down Step-Up/Step-Down	Surface Mount	16 Leads 20-TSSOP Exposed Pad	0.173 " 4.4 mm	-40 C	125 °C	560 V	20-TSSOP-EP

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	0	$ 7.08	1m+

Description

General part information

LT8315 Series

The LT8315 is a high voltage flyback converter with integrated 630V/300mA switch. No opto-isolator is needed for regulation. The device samples the output voltage from the isolated flyback waveform appearing across a third winding on the transformer. Quasi-resonant boundary mode operation improves load regulation, reduces transformer size, and maintains high efficiency.At start-up, the LT8315 charges its INTVCCcapacitor via a current source attached to the DRAIN pin. During normal operation, the current source turns off and the device draws its power from a third winding on the transformer.The LT8315 operates from a wide range of input supply voltages and can deliver up to 15W of power. It is available in a thermally enhanced 20-pin TSSOP package with four pins removed for high-voltage spacing.ApplicationsIsolated Telecom, Automotive, Industrial, Medical Power SuppliesIsolated Off Line Housekeeping Power SuppliesElectric Vehicles and Battery Stacks

Documents

Technical documentation and resources

LT8315HFE#TRPBF | Datasheet

Datasheet

R570 Reliability Data

Reliability Data