Specification	MAX5949AESA+T

Applications	-48 V
Current - Supply	700 µA
Features	Fault Timeout
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	Circuit Breaker, Auto Retry, UVLO, OVP, Latched Fault
Supplier Device Package	8-SOIC
Type	Hot Swap Controller
Voltage - Supply [Max]	-20 V
Voltage - Supply [Min]	-80 V

MAX5949 Series

Part	Current - Supply	Package / Case	Package / Case	Package / Case	Type	Number of Channels [custom]	Features	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Applications	Operating Temperature [Max]	Operating Temperature [Min]	Programmable Features	Mounting Type
Analog Devices Inc./Maxim Integrated MAX5949BESA+
Analog Devices Inc./Maxim Integrated MAX5949AESA+T	700 µA	0.154 in	8-SOIC	3.9 mm	Hot Swap Controller	1	Fault Timeout	-20 V	-80 V	8-SOIC	-48 V	85 °C	-40 C	Auto Retry Circuit Breaker Latched Fault OVP UVLO	Surface Mount
Analog Devices Inc./Maxim Integrated MAX5949AESA	700 µA	0.154 in	8-SOIC	3.9 mm	Hot Swap Controller	1	Auto Retry Fault Timeout Latched Fault OVP UVLO	-80 V	-20 V	8-SOIC	-48 V	85 °C	-40 C	Circuit Breaker Current Limit Fault Timeout OVP UVLO	Surface Mount
Analog Devices Inc./Maxim Integrated MAX5949AESA+	700 µA	0.154 in	8-SOIC	3.9 mm	Hot Swap Controller	1	Fault Timeout	-20 V	-80 V	8-SOIC	-48 V	85 °C	-40 C	Auto Retry Circuit Breaker Latched Fault OVP UVLO	Surface Mount
Analog Devices Inc./Maxim Integrated MAX5949BESA+T	700 µA	0.154 in	8-SOIC	3.9 mm	Hot Swap Controller	1	Fault Timeout	-20 V	-80 V	8-SOIC	-48 V	85 °C	-40 C	Auto Retry Circuit Breaker Latched Fault OVP UVLO	Surface Mount

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	0	$ 4.46
	Tape & Reel (TR)	2500	$ 4.15

Description

General part information

MAX5949 Series

The MAX5949A/MAX5949B are hot-swap controllers that allow a circuit card to be safely hot plugged into a live backplane. The MAX5949A/MAX5949B operate from -20V to -80V and are well-suited for -48V power systems. These devices are pin and function compatible with the LT4250 and pin compatible with the LT1640.The MAX5949A/MAX5949B provide a controlled turn-on to circuit cards preventing glitches on the power-supply rail and damage to board connectors and components. The MAX5949A/MAX5949B provide undervoltage, overvoltage, and overcurrent protection. These devices ensure the input voltage is stable and within tolerance before applying power to the load.Both the MAX5949A and MAX5949B protect a system against overcurrent and short-circuit conditions by turning off the external MOSFET in the event of a fault condition. The MAX5949A/MAX5949B also provide protection against input voltage steps. During an input voltage step, the MAX5949A/MAX5949B limit the current drawn by the load to a safe level without turning off power to the load.Both devices feature an open-drain power-good status output (PWRGD-bar for the MAX5949A or PWRGD for the MAX5949B) that can be used to enable downstream converters.The MAX5949A/MAX5949B are available in an 8-pin SO package. Both devices are specified for the extended -40°C to +85°C temperature range.Applications-48V Distributed Power SystemsBase-Station Line CardsCentral-Office Line CardsCentral-Office SwitchingNegative Power-Supply ControlsNetwork Routers and SwitchesServer Line CardsTelecom Line Cards

Documents

Technical documentation and resources

MAX5949AESA+T | Datasheet

Datasheet

Package Drawing - Small-Outline IC, Narrow (0.15in)

Package Drawing