LTC4229 Series

Ideal Diode and Hot Swap Controller

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Ideal Diode and Hot Swap Controller

Part	Supplier Device Package	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Type	Number of Channels [custom]	Current - Supply	Applications	Package / Case	Programmable Features	Features	Voltage - Supply [Max]	Voltage - Supply [Min]	Package / Case	Package / Case
Analog Devices Inc./Maxim Integrated LTC4229CUFD#TRPBF	24-QFN (4x5)	Surface Mount	70 °C	0 °C	Hot Swap Controller OR Controller	1	2 mA	General Purpose	24-WFQFN Exposed Pad	Auto Retry Current Limit Fault Timeout Latched Fault	OVP UVLO	18 V	2.9 V
Analog Devices Inc./Maxim Integrated LTC4229CUFD#PBF	24-QFN (4x5)	Surface Mount	70 °C	0 °C	Hot Swap Controller OR Controller	1	2 mA	General Purpose	24-WFQFN Exposed Pad	Auto Retry Current Limit Fault Timeout Latched Fault	OVP UVLO	18 V	2.9 V
Analog Devices Inc./Maxim Integrated LTC4229CG#TRPBF	24-SSOP	Surface Mount	70 °C	0 °C	Hot Swap Controller OR Controller	1	2 mA	General Purpose	24-SSOP	Auto Retry Current Limit Fault Timeout Latched Fault	OVP UVLO	18 V	2.9 V	5.3 mm	0.209 in
Analog Devices Inc./Maxim Integrated LTC4229IG#PBF	24-SSOP	Surface Mount	85 °C	-40 C	Hot Swap Controller OR Controller	1	2 mA	General Purpose	24-SSOP	Auto Retry Current Limit Fault Timeout Latched Fault	OVP UVLO	18 V	2.9 V	5.3 mm	0.209 in
Analog Devices Inc./Maxim Integrated LTC4229CG#PBF	24-SSOP	Surface Mount	70 °C	0 °C	Hot Swap Controller OR Controller	1	2 mA	General Purpose	24-SSOP	Auto Retry Current Limit Fault Timeout Latched Fault	OVP UVLO	18 V	2.9 V	5.3 mm	0.209 in
Analog Devices Inc./Maxim Integrated LTC4229IUFD#PBF	24-QFN (4x5)	Surface Mount	85 °C	-40 C	Hot Swap Controller OR Controller	1	2 mA	General Purpose	24-WFQFN Exposed Pad	Auto Retry Current Limit Fault Timeout Latched Fault	OVP UVLO	18 V	2.9 V
Analog Devices Inc./Maxim Integrated LTC4229IUFD#TRPBF	24-QFN (4x5)	Surface Mount	85 °C	-40 C	Hot Swap Controller OR Controller	1	2 mA	General Purpose	24-WFQFN Exposed Pad	Auto Retry Current Limit Fault Timeout Latched Fault	OVP UVLO	18 V	2.9 V
Analog Devices Inc./Maxim Integrated LTC4229IG#TRPBF	24-SSOP	Surface Mount	85 °C	-40 C	Hot Swap Controller OR Controller	1	2 mA	General Purpose	24-SSOP	Auto Retry Current Limit Fault Timeout Latched Fault	OVP UVLO	18 V	2.9 V	5.3 mm	0.209 in

Catalog

Ideal Diode and Hot Swap Controller

Description

The LTC4229 offers ideal diode and Hot Swap™functions for a power rail by controlling two external N-channel MOSFETs. The MOSFET acting as an ideal diode replaces a high power Schottky diode and the associated heat sink, saving power and board area. The Hot Swap MOSFET control allows a board to be safely inserted and removed from a live backplane by limiting inrush current. The supply output is also protected against short-circuit faults with a fast acting foldback current limit and electronic circuit breaker.The LTC4229 regulates the forward voltage drop across the external MOSFET to ensure smooth current transfer in diode-OR applications. The ideal diode turns on quickly to reduce the load voltage droop during supply switchover. If the input supply fails or is shorted, a fast turn-off minimizes reverse-current transients.The LTC4229 provides adjustable start-up delay, undervoltage and overvoltage protection, and reports fault and power good status for the supply. It can be configured for latch off or automatic retry after a fault.ApplicationsRedundant Power SuppliesSupply HoldupHigh Availability Systems and ServersTelecom and Network InfrastructurePower Prioritizer