Specification	MAX5921AESA+

Applications	-48 V
Current - Supply	700 µA
Features	Fault Timeout, Thermal Limit, Auto Retry
Internal Switch(s)	False
Mounting Type	Surface Mount
Number of Channels [custom]	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Programmable Features	UVLO, Current Limit, OVP, Circuit Breaker
Supplier Device Package	8-SOIC
Type	Hot Swap Controller
Voltage - Supply [Max]	-20 V
Voltage - Supply [Min]	-80 V

MAX5921 Series

Part	Current - Supply	Package / Case	Package / Case	Package / Case	Applications	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Features	Type	Number of Channels [custom]	Programmable Features	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]
Analog Devices Inc./Maxim Integrated MAX5921AESA+	700 µA	0.154 in	8-SOIC	3.9 mm	-48 V	8-SOIC	85 °C	-40 C	Auto Retry Fault Timeout Thermal Limit	Hot Swap Controller	1	Circuit Breaker Current Limit OVP UVLO	Surface Mount	-20 V	-80 V
Analog Devices Inc./Maxim Integrated MAX5921EESA+	700 µA	0.154 in	8-SOIC	3.9 mm	-48 V	8-SOIC	85 °C	-40 C	Auto Retry Fault Timeout Thermal Limit	Hot Swap Controller	1	Circuit Breaker Current Limit OVP UVLO	Surface Mount	-20 V	-80 V
Analog Devices Inc./Maxim Integrated MAX5921BESA+	700 µA	0.154 in	8-SOIC	3.9 mm	-48 V	8-SOIC	85 °C	-40 C	Auto Retry Fault Timeout Thermal Limit	Hot Swap Controller	1	Circuit Breaker Current Limit OVP UVLO	Surface Mount	-20 V	-80 V
Analog Devices Inc./Maxim Integrated MAX5921BESA+T	700 µA	0.154 in	8-SOIC	3.9 mm	-48 V	8-SOIC	85 °C	-40 C	Auto Retry Fault Timeout Thermal Limit	Hot Swap Controller	1	Circuit Breaker Current Limit OVP UVLO	Surface Mount	-20 V	-80 V
Analog Devices Inc./Maxim Integrated MAX5921EESA+T	700 µA	0.154 in	8-SOIC	3.9 mm	-48 V	8-SOIC	85 °C	-40 C	Auto Retry Fault Timeout Thermal Limit	Hot Swap Controller	1	Circuit Breaker Current Limit OVP UVLO	Surface Mount	-20 V	-80 V
Analog Devices Inc./Maxim Integrated MAX5921AESA+T	700 µA	0.154 in	8-SOIC	3.9 mm	-48 V	8-SOIC	85 °C	-40 C	Auto Retry Fault Timeout Thermal Limit	Hot Swap Controller	1	Circuit Breaker Current Limit OVP UVLO	Surface Mount	-20 V	-80 V
Analog Devices Inc./Maxim Integrated MAX5921FESA+	700 µA	0.154 in	8-SOIC	3.9 mm	-48 V	8-SOIC	85 °C	-40 C	Auto Retry Fault Timeout Thermal Limit	Hot Swap Controller	1	Circuit Breaker Current Limit OVP UVLO	Surface Mount	-20 V	-80 V
Analog Devices Inc./Maxim Integrated MAX5921FESA+T	700 µA	0.154 in	8-SOIC	3.9 mm	-48 V	8-SOIC	85 °C	-40 C	Auto Retry Fault Timeout Thermal Limit	Hot Swap Controller	1	Circuit Breaker Current Limit OVP UVLO	Surface Mount	-20 V	-80 V

Pricing

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

Distributor	Package	Quantity	$

Digikey	N/A	92	$ 7.73
		1500	$ 7.73
	Tube	1	$ 7.02
		10	$ 6.34
		25	$ 6.05
		100	$ 5.25
		300	$ 5.01
		500	$ 4.57
		1000	$ 3.98
		2500	$ 3.83

Description

General part information

MAX5921 Series

The MAX5921/MAX5939 hot-swap controllers allow a circuit card to be safely hot plugged into a live backplane. The MAX5921/MAX5939 operate from -20V to -80V and are well suited for -48V power systems. These devices are pin compatible with both the LT1640 and LT4250 and provide improved features over these devices.The MAX5921/MAX5939 provide a controlled turn-on to circuit cards preventing damage to board connectors, board components, and preventing glitches on the power-supply rail. The MAX5921/MAX5939 provide undervoltage, overvoltage, and overcurrent protection. These devices ensure that the input voltage is stable and within tolerance before applying power to the load.Both the MAX5921 and MAX5939 protect a system against overcurrent and short-circuit conditions by turning off the external MOSFET in the event of a fault condition. The MAX5921/MAX5939 protect against input voltage steps by limiting the load current to a safe level without turning off power to the load.The device features an open-drain power-good status output, active-low PWRGD or PWRGD for enabling downstream converters (seeSelector Guide). A built-in thermal shutdown feature is also included to protect the external MOSFET in case of overheating. The MAX5939 features a latched fault output. The MAX5921 contains built-in autoretry circuitry after a fault condition.The MAX5921/MAX5939 are available in an 8-pin SO package and operate in the extended -40°C to +85°C temperature range.ApplicationsBase-Station Line CardsCentral-Office Line CardsNetwork Routers and SwitchesServer Line CardsTelecom Line Cards