MAX5910ESA+ Maxim Integrated Products, MAX5910ESA+ Datasheet

IC HOT-SWAP SWITCH 65V 8-SOIC

MAX5910ESA+

Manufacturer Part Number
MAX5910ESA+
Description
IC HOT-SWAP SWITCH 65V 8-SOIC
Manufacturer
Maxim Integrated Products
Series
Simple Swapper™r
Type
Hot-Swap Switchr
Datasheet
1.MAX5910ESA.pdf (11 pages)

Specifications of MAX5910ESA+

Applications
IP Phones, Power over LAN, Network Routers and Switches
Internal Switch(s)
Yes
Current Limit
280mA
Voltage - Supply
10 V ~ 65 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX5910/MAX5917 are fully integrated hot-swap
switches for positive supply rails. These devices allow
the safe insertion and removal of circuit cards into live
backplanes or ports without causing glitches on the
backplane power-supply rail. They also monitor various
circuit parameters and disconnect the load if a fault
condition occurs, alerting the host with a logic-level
IFAULT output. The MAX5910/MAX5917 operate over a
+10V to +65V input voltage range. They are designed
to permit hot plugging of an internet appliance such as
an IP phone but are not limited to that application.
During startup, an internal power FET regulates the cur-
rent between the backplane power source and the load
to 280mA for the MAX5910, 567mA for the MAX5917A,
and 420mA for the MAX5917B. After startup, the FET is
fully enhanced to reduce its on-resistance. To ensure
robust operation, the MAX5910/MAX5917 contain built-
in safety features that prevent damage to the internal
FET. They include an enable input, which responds to
positive logic signals (+3.3V or +5V), allowing the host
system to disconnect the load.
The MAX5910/MAX5917 Simple Swapper™ hot-swap ICs
monitor four parameters for fault conditions: undervoltage
lockout (UVLO), power-not-good, zero-current detection,
and thermal shutdown. These devices are available in the
extended temperature range, -40°C to +85°C. The
MAX5910 comes in an 8-pin SO package and the
MAX5917A/B is available in a 16-pin SO package.
19-1706; Rev 0; 7/01
Pin Configurations appear at end of data sheet.
Simple Swapper is a trademark of Maxim Integrated Products, Inc.
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.
IP Phones
Power-Over-LAN
Power-Over-MDI
Remote Power Distribution
Network Routers
Network Switches
Internet Appliances
+65V Simple Swapper Hot-Swap Switches
________________________________________________________________ Maxim Integrated Products
General Description
Applications
o Provides Safe Hot Swap for +10V to +65V Power
o IEEE 802.3af Compliant (MAX5917A)
o Startup into 500µF Load (MAX5917A)
o 280mA Current Limit for MAX5910
o 567mA Current Limit for MAX5917A
o 420mA Current Limit for MAX5917B
o Zero-Current Load Detection
o Integrated 2.2 Power FET
o Status Output Reports Fault Conditions
o Internal Switch-Protection Circuitry
o Built-In Thermal Shutdown
*Future product—contact factory for availability.
MAX5910ESA
MAX5917AESE*
MAX5917BESE
Supplies
V
IN
PART
(+42V)
ON
OFF
Typical Operating Circuit
ENABLE
V
UVLO
IN
TEMP. RANGE
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
Ordering Information
MAX5910
MAX5917
PGOOD
GND
IFAULT
V
OUT
10k
10k
PIN-PACKAGE
Features
16 SO
16 SO
+3.3V
8 SO
L
O
A
D
1

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MAX5910ESA+ Summary of contents

Page 1

... Network Routers Network Switches Internet Appliances Pin Configurations appear at end of data sheet. Simple Swapper is a trademark of Maxim Integrated Products, Inc. ________________________________________________________________ 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. o Provides Safe Hot Swap for +10V to +65V Power Supplies o IEEE 802 ...

Page 2

Simple Swapper Hot-Swap Switches ABSOLUTE MAXIMUM RATINGS GND................................................-0.3V to +70.0V IN OUT ENABLE to GND..................................................-0.3V to +12.0V PGOOD, IFAULT to GND ....................................-0.3V to +12.0V UVLO to GND ..............................................-0. PGOOD, IFAULT Sink Current ............................................10mA ...

Page 3

Simple Swapper Hot-Swap Switches ELECTRICAL CHARACTERISTICS (continued +42V, GND = 0, UVLO = open circuit +25°C.) A PARAMETER SYMBOL Zero-Current Detection Threshold Hysteresis IFAULT Output Delay PGOOD Output Delay Thermal Shutdown Temperature ...

Page 4

Simple Swapper Hot-Swap Switches (V = +42V, GND = 0, UVLO = open circuit SUPPLY CURRENT vs. SUPPLY VOLTAGE 2.0 1.6 1.2 0.8 0.4 NO LOAD SUPPLY VOLTAGE (V) MAX5910 ...

Page 5

Simple Swapper Hot-Swap Switches (V = +42V, GND = 0, UVLO = open circuit MAX5910 TURN-OFF WAVEFORMS ( MAX5910 toc07 20ms/div A: ...

Page 6

Simple Swapper Hot-Swap Switches (V = +42V, GND = 0, UVLO = open circuit MAX5917B TURN-OFF WAVEFORMS ( MAX5910 toc13 20ms/div A: ...

Page 7

Simple Swapper Hot-Swap Switches (V = +42V, GND = 0, UVLO = open circuit MAX5917B I vs. TEMPERATURE OUT 450 430 410 390 370 350 -40 - TEMPERATURE ( C) MAX5917B I vs. (V ...

Page 8

Simple Swapper Hot-Swap Switches PIN MAX5910 MAX5917A 15 12 Detailed Description The MAX5910/MAX5917 are fully integrated hot-swap ...

Page 9

Simple Swapper Hot-Swap Switches Thermal Shutdown Fault The MAX5910/MAX5917 monitor their internal die tem- perature. If the temperature of the die exceeds +140°C, the internal FET is turned off and IFAULT and PGOOD are pulled low. The output is ...

Page 10

Simple Swapper Hot-Swap Switches IN OSC. BANDGAP REFERENCE GND UVLO TOP VIEW UVLO N.C. 3 ENABLE 4 10 ______________________________________________________________________________________ CHARGE PUMP R SENSE I REG VREF ON/OFF R UV1 THERMAL SHUTDOWN ...

Page 11

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

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