LT3752EFE#PBF

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Analog Devices

ACTIVE CLAMP SYNCHRONOUS FORWARD CONTROLLERS WITH INTERNAL HOUSEKEEPING CONTROLLER

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LT3752EFE#PBF

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Analog Devices

ACTIVE CLAMP SYNCHRONOUS FORWARD CONTROLLERS WITH INTERNAL HOUSEKEEPING CONTROLLER

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Technical Specifications

Parameters and characteristics for this part

Specification	LT3752EFE#PBF

Clock Sync	True
Control Features	Frequency Control, Enable, Soft Start
Duty Cycle (Max)	95 %
Frequency - Switching [Max]	500 kHz
Frequency - Switching [Min]	100 kHz
Function	Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive, Isolation Capable
Output Phases	1
Output Type	Transistor Driver
Package / Case	Exposed Pad, 38-TFSOP
Package / Case	31 Leads
Package / Case [custom]	0.173 "
Package / Case [custom]	4.4 mm
Supplier Device Package	38-TSSOP-EP
Synchronous Rectifier	True
Topology	Forward Converter
Voltage - Supply (Vcc/Vdd) [Max]	100 V
Voltage - Supply (Vcc/Vdd) [Min]	6.5 V

LT3752LT3752-1 Series

Active Clamp Synchronous Forward Controllers with Internal Housekeeping Controller

Part	Function	Output Type	Frequency - Switching [Max]	Frequency - Switching [Min]	Topology	Supplier Device Package	Number of Outputs	Package / Case [custom]	Package / Case	Package / Case	Package / Case [custom]	Control Features	Duty Cycle (Max)	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Mounting Type	Output Phases	Operating Temperature [Min]	Operating Temperature [Max]	Output Configuration	Grade	Qualification
Analog Devices LT3752IFE#PBF	Step-Up/Step-Down	Transistor Driver	500 kHz	100 kHz	Forward Converter	38-TSSOP-EP	1	0.173 "	38-TFSOP Exposed Pad	31 Leads	4.4 mm	Enable Frequency Control Soft Start	95 %	100 V	6.5 V	Surface Mount	1	-40 °C	125 ¯C	Isolation Capable Positive
Analog Devices LT3752HFE-1#WPBF	Step-Up/Step-Down	Transistor Driver	500 kHz	100 kHz	Forward Converter	38-TSSOP-EP	1	0.173 "	38-TFSOP Exposed Pad	31 Leads	4.4 mm	Enable Frequency Control Soft Start	95 %	100 V	6.5 V	Surface Mount	1	-40 °C	150 °C	Isolation Capable Positive	Automotive	AEC-Q100
Analog Devices LT3752HFE#PBF	Step-Up/Step-Down	Transistor Driver	500 kHz	100 kHz	Forward Converter	38-TSSOP-EP	1	0.173 "	38-TFSOP Exposed Pad	31 Leads	4.4 mm	Enable Frequency Control Soft Start	95 %	100 V	6.5 V	Surface Mount	1	-40 °C	150 °C	Isolation Capable Positive
Analog Devices LT3752EFE#PBF	Step-Up/Step-Down	Transistor Driver	500 kHz	100 kHz	Forward Converter	38-TSSOP-EP	1	0.173 "	38-TFSOP Exposed Pad	31 Leads	4.4 mm	Enable Frequency Control Soft Start	95 %	100 V	6.5 V	Surface Mount	1	-40 °C	125 ¯C	Isolation Capable Positive
Analog Devices LT3752HFE-1#WTRPBF	Step-Up/Step-Down	Transistor Driver	500 kHz	100 kHz	Forward Converter	38-TSSOP-EP	1	0.173 "	38-TFSOP Exposed Pad	31 Leads	4.4 mm	Enable Frequency Control Soft Start	95 %	100 V	6.5 V	Surface Mount	1	-40 °C	150 °C	Isolation Capable Positive	Automotive	AEC-Q100
Analog Devices LT3752HFE	Step-Up/Step-Down	Transistor Driver	500 kHz	100 kHz	Forward Converter	38-TSSOP-EP	1	0.173 "	38-TFSOP Exposed Pad	31 Leads	4.4 mm	Enable Frequency Control Soft Start	95 %	100 V	6.5 V	Surface Mount	1			Isolation Capable Positive
Analog Devices LT3752IFE-1	Step-Up/Step-Down	Transistor Driver	500 kHz	100 kHz	Forward Converter	38-TSSOP-EP	1	0.173 "	38-TFSOP Exposed Pad	31 Leads	4.4 mm	Enable Frequency Control Soft Start	95 %	16 V	10.5 V	Surface Mount	1	-40 °C	125 °C	Isolation Capable Positive
Analog Devices LT3752HFE#WTRPBF	Step-Up/Step-Down	Transistor Driver	500 kHz	100 kHz	Forward Converter	38-TSSOP-EP	1	0.173 "	38-TFSOP Exposed Pad	31 Leads	4.4 mm	Enable Frequency Control Soft Start	95 %	100 V	6.5 V	Surface Mount	1	-40 °C	150 °C	Isolation Capable Positive	Automotive	AEC-Q100
Analog Devices LT3752MPFE-1#PBF	Step-Up/Step-Down	Transistor Driver	500 kHz	100 kHz	Forward Converter	38-TSSOP-EP	1	0.173 "	38-TFSOP Exposed Pad	31 Leads	4.4 mm	Enable Frequency Control Soft Start	95 %	16 V	10.5 V	Surface Mount	1	-55 °C	150 °C	Isolation Capable Positive
Analog Devices LT3752IFE-1#PBF	Step-Up/Step-Down	Transistor Driver	500 kHz	100 kHz	Forward Converter	38-TSSOP-EP	1	0.173 "	38-TFSOP Exposed Pad	31 Leads	4.4 mm	Enable Frequency Control Soft Start	95 %	16 V	10.5 V	Surface Mount	1	-40 °C	125 ¯C	Isolation Capable Positive

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 11.38
		10	$ 7.97
		25	$ 7.10
		100	$ 6.12
		250	$ 5.64
		500	$ 5.35
		1000	$ 5.11
Newark	Each	1	$ 10.81
		10	$ 7.38
		25	$ 6.65
		50	$ 5.93
		100	$ 5.47
		250	$ 5.09

Description

General part information

LT3752LT3752-1 Series

The LT3752/LT3752-1 are current mode PWM controllers optimized for an active clamp forward converter topology. A DC/DC housekeeping controller is included for improved efficiency and performance. The LT3752 allows operation up to 100V input and the LT3752-1 is optimized for applications with input voltages greater than 100V.A programmable volt-second clamp allows primary switch duty cycles above 50% for high switch, transformer and rectifier utilization. Active clamp control reduces switch voltage stress and increases efficiency. A synchronous output is available for controlling secondary side synchronous rectification.The LT3752/LT3752-1 are available in a 38-lead plastic TSSOP package with missing pins for high voltage spacings.ApplicationsOffline and HV Car Battery Isolated Power Supplies48V Telecommunication Isolated Power SuppliesIndustrial, Automotive and Military Systems