MAX5937LCESA+ datasheet, PDF - EEWORLD Datasheet

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MAX5937LCESA+: Descriptionhot swap voltage controllers 48v- hot-swap controller; CategoryPower/power management The power supply circuit; File Size380KB，23 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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MAX5937LCESA+ Overview

hot swap voltage controllers 48v- hot-swap controller

MAX5937LCESA+ Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Maxim
Parts packaging code	SOIC
package instruction	SOP, SOP8,.25
Contacts	8
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	IT OPERATES FROM A -10V TO -80V SUPPLY
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G8
JESD-609 code	e3
length	4.9 mm
Humidity sensitivity level	1
Number of channels	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP8,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
power supply	-10/-80 V
Certification status	Not Qualified
Maximum seat height	1.75 mm
Maximum supply current (Isup)	1.4 mA
surface mount	YES
technology	BICMOS
Temperature level	INDUSTRIAL
Terminal surface	MATTE TIN
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	3.9 mm

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19-3281; Rev 1; 1/05

-48V Hot-Swap Controllers with V

Step Immunity and No R

SENSE

General Description

The MAX5936/MAX5937 are hot-swap controllers for

-10V to -80V rails. The MAX5936/MAX5937 allow circuit

line cards to be safely hot-plugged into a live back-

plane without causing a glitch on the power supply.

These devices integrate a circuit-breaker function

requiring no R

SENSE

The MAX5936/MAX5937 provide a controlled turn-on

for circuit cards, limiting inrush, preventing glitches on

the power-supply rail, and preventing damage to board

connectors and components. Before startup, the

devices perform a Load Probe™ test to detect the

presence of a short-circuit condition. If a short-circuit

condition does not exist, the device limits the inrush

current drawn by the load by gradually turning on the

external MOSFET. Once the external MOSFET is fully

enhanced, the MAX5936/MAX5937 provides overcur-

rent and short-circuit protection by monitoring the volt-

age drop across the R

DS(ON)

of the external power

MOSFET. The MAX5936/MAX5937 integrate a 400mA

fast GATE pulldown to guarantee that the power

MOSFET is rapidly turned off in the event of an overcur-

rent or short-circuit condition.

The MAX5936/MAX5937 protect the system against

input voltage (V

) steps by providing V

step immuni-

ty. The MAX5936/MAX5937 provide an accurate UVLO

voltage. The MAX5936 has an open-drain, active-low

PGOOD

output and the MAX5937 has an open-drain,

active-high PGOOD output.

The MAX5936/MAX5937 are offered with 100mV,

200mV, and 400mV circuit-breaker thresholds, in addi-

tion to a non-circuit-breaker option. These devices are

offered in latched and autoretry fault management, are

available in 8-pin SO packages, and specified for the

extended (-40°C to +85°C) temperature range (see the

Selector Guide).

♦

-10V to -80V Operation

♦

No R

SENSE

Required

♦

Drives Large Power MOSFETS

♦

Programmable Inrush Current Limit During Hot

Plug

♦

100mV, 200mV, 400mV, and No-Circuit-Breaker

Threshold Options

♦

Circuit-Breaker Fault with Transient Rejection

♦

Shorted Load Detection (Load Probe) Before

Power MOSFET Turn-On

♦

±2.4% Accurate Undervoltage Lockout (UVLO)

♦

Autoretry and Latched Fault Management

Available

♦

Low Quiescent Current

Features

MAX5936/MAX5937

Ordering Information

PART

MAX5936_

_ESA

MAX5937_

_ESA

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

8 SO

Note:

The first “_” represents A for the autoretry and L for the

latched fault management option.

The second “_” represents the circuit-breaker threshold.

See the Selector Guide for additional information.

Selector Guide and Typical Operating Circuit appear at end

of data sheet.

Applications

Servers

Telecom Line Cards

Network Switches

Solid-State Circuit Breaker

Network Routers

UVLO 2

STEP_MON

GND 1

Pin Configuration

TOP VIEW

PGOOD

(PGOOD)

OUT

GATE

MAX5936

MAX5937

Load Probe is a trademark of Maxim Integrated Products, Inc.

( ) FOR THE MAX5937.

________________________________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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