Integrated Circuits (ICs)

LTC4352IDD#PBF

Active

Analog Devices Inc./Maxim Integrated

IDEAL DIODE CONTROLLER, LOW VOLTAGE, 2.9 TO 18 V, -40 TO 85 DEG C, DFN-EP-12

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DocumentsR536 Reliability Data Datasheet

Integrated Circuits (ICs)

LTC4352IDD#PBF

Active

Analog Devices Inc./Maxim Integrated

IDEAL DIODE CONTROLLER, LOW VOLTAGE, 2.9 TO 18 V, -40 TO 85 DEG C, DFN-EP-12

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DocumentsR536 Reliability Data Datasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC4352IDD#PBF

Applications	Telecom Infrastructure, Redundant Power Supplies
Current - Supply	1.4 mA
Delay Time - OFF	200 ns
Delay Time - ON	250 ns
FET Type	N-Channel
Internal Switch(s)	False
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	12-WFDFN Exposed Pad
Ratio - Input:Output	N:1
Supplier Device Package	12-DFN (3x3)
Type	N+1 ORing Controller
Voltage - Supply [Max]	18 V
Voltage - Supply [Min]	2.9 V

LTC4352 Series

Low Voltage Ideal Diode Controller with Monitoring

Part	Voltage - Supply [Max]	Voltage - Supply [Min]	Ratio - Input:Output	Supplier Device Package	Type	Package / Case	Current - Supply	Delay Time - ON	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Applications	Delay Time - OFF	FET Type	Package / Case [x]	Package / Case [y]
Analog Devices Inc./Maxim Integrated LTC4352CDD#TRPBF	18 V	2.9 V	N:1	12-DFN (3x3)	N+1 ORing Controller	12-WFDFN Exposed Pad	1.4 mA	250 ns	Surface Mount	70 °C	0 °C	Redundant Power Supplies Telecom Infrastructure	200 ns	N-Channel
Analog Devices Inc./Maxim Integrated LTC4352HDD#TRPBF	18 V	2.9 V	N:1	12-DFN (3x3)	N+1 ORing Controller	12-WFDFN Exposed Pad	1.4 mA	250 ns	Surface Mount	150 °C	-40 C	Redundant Power Supplies Telecom Infrastructure	200 ns	N-Channel
Analog Devices Inc./Maxim Integrated LTC4352CDD#PBF	18 V	2.9 V	N:1	12-DFN (3x3)	N+1 ORing Controller	12-WFDFN Exposed Pad	1.4 mA	250 ns	Surface Mount	70 °C	0 °C	Redundant Power Supplies Telecom Infrastructure	200 ns	N-Channel
Analog Devices Inc./Maxim Integrated LTC4352IDD#PBF	18 V	2.9 V	N:1	12-DFN (3x3)	N+1 ORing Controller	12-WFDFN Exposed Pad	1.4 mA	250 ns	Surface Mount	85 °C	-40 C	Redundant Power Supplies Telecom Infrastructure	200 ns	N-Channel
Analog Devices Inc./Maxim Integrated LTC4352CMS#TRPBF	18 V	2.9 V	N:1	12-MSOP	N+1 ORing Controller	12-TSSOP	1.4 mA	250 ns	Surface Mount	70 °C	0 °C	Redundant Power Supplies Telecom Infrastructure	200 ns	N-Channel	0.118 in	3 mm
Analog Devices Inc./Maxim Integrated LTC4352HMS#PBF	18 V	2.9 V	N:1	12-MSOP	N+1 ORing Controller	12-TSSOP	1.4 mA	250 ns	Surface Mount	150 °C	-40 C	Redundant Power Supplies Telecom Infrastructure	200 ns	N-Channel	0.118 in	3 mm
Analog Devices Inc./Maxim Integrated LTC4352IMS#TRPBF	18 V	2.9 V	N:1	12-MSOP	N+1 ORing Controller	12-TSSOP	1.4 mA	250 ns	Surface Mount	85 °C	-40 C	Redundant Power Supplies Telecom Infrastructure	200 ns	N-Channel	0.118 in	3 mm
Analog Devices Inc./Maxim Integrated LTC4352CMS#PBF	18 V	2.9 V	N:1	12-MSOP	N+1 ORing Controller	12-TSSOP	1.4 mA	250 ns	Surface Mount	70 °C	0 °C	Redundant Power Supplies Telecom Infrastructure	200 ns	N-Channel	0.118 in	3 mm
Analog Devices Inc./Maxim Integrated LTC4352HDD#PBF	18 V	2.9 V	N:1	12-DFN (3x3)	N+1 ORing Controller	12-WFDFN Exposed Pad	1.4 mA	250 ns	Surface Mount	150 °C	-40 C	Redundant Power Supplies Telecom Infrastructure	200 ns	N-Channel
Analog Devices Inc./Maxim Integrated LTC4352IMS#PBF	18 V	2.9 V	N:1	12-MSOP	N+1 ORing Controller	12-TSSOP	1.4 mA	250 ns	Surface Mount	85 °C	-40 C	Redundant Power Supplies Telecom Infrastructure	200 ns	N-Channel	0.118 in	3 mm

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	501	$ 9.64	1m+
	Tube	1	$ 10.11	1m+
		10	$ 7.03
		25	$ 6.24
		100	$ 5.35
		250	$ 4.92
		500	$ 4.66
		1000	$ 4.44
Newark	Each	1	$ 8.39	1m+
		10	$ 6.53
		25	$ 5.72
		50	$ 5.21
		100	$ 4.70
		363	$ 4.36

Description

General part information

LTC4352 Series

The LTC4352 creates a near-ideal diode using an external N-channel MOSFET. It replaces a high power Schottky diode and the associated heat sink, saving power and board area. The ideal diode function permits low loss power ORing and supply holdup applications.The LTC4352 regulates the forward voltage drop across the MOSFET to ensure smooth current transfer in diode-OR applications. A fast turn-on reduces the load voltage droop during supply switch-over. If the input supply fails or is shorted, a fast turn-off minimizes reverse currents.The controller operates with supplies from 2.9V to 18V. For lower voltages, an external supply is needed at the VCCpin. Power passage is disabled during undervoltage or overvoltage conditions. The controller also features an open MOSFET detect circuit that ﬂags excessive voltage drop across the pass transistor in the on state. A REV pin enables reverse current, overriding the diode behavior when desired.ApplicationsRedundant Power SuppliesSupply HoldupTelecom InfrastructureComputer Systems and Servers