max5932esat Maxim Integrated Products, Inc., max5932esat Datasheet

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max5932esat

Manufacturer Part Number
max5932esat
Description
Max5932 Positive High-voltage, Hot-swap Controller
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
The MAX5932 is a fully integrated hot-swap controller for
+9V to +80V positive supply rails. The MAX5932 allows
for the safe insertion and removal of circuit cards into a
live backplane without causing glitches on the back-
plane power-supply rail. This device is pin and function
compatible to LT1641-1. The MAX5932 features a pro-
grammable foldback-current limit. If the device remains
in current limit for more than a programmable time, the
external n-channel MOSFET latches off. Other features
include a programmable undervoltage lockout and a
programmable output-voltage slew rate through an
external n-channel MOSFET.
The MAX5932 provides a power-good output (PWRGD)
to indicate the status of the output voltage. For a variety
of PWRGD/PWRGD, latch/autoretry-fault management,
autoretry duty-cycle options, refer to the MAX5933 and
MAX5934 data sheets.
The MAX5932 operates in the -40°C to +85°C extended
temperature range. This device is available in an
8-pin SO package.
19-3264; Rev 0; 4/04
Typical Application Circuit appears at end of data sheet.
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.
Hot Board Insertion
Electronic Circuit Breaker
Industrial High-Side Switch/Circuit Breaker
Network Routers and Switches
24V/48V Industrial/Alarm Systems
Positive High-Voltage, Hot-Swap Controller
General Description
Applications
o
o
o
o
o
o
o
o
o
o
MAX5932ESA
TOP VIEW
PART
PWRGD
GND
ON
FB
1
2
4
3
Ordering Information
-40°C to +85°C
TEMP RANGE
MAX5932
SO
Maxim Integrated Products
Pin Configuration
8
7
6
5
V
GATE
SENSE
TIMER
CC
PIN-PACKAGE
8 SO
Features

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max5932esat Summary of contents

Page 1

Rev 0; 4/04 Positive High-Voltage, Hot-Swap Controller General Description The MAX5932 is a fully integrated hot-swap controller for +9V to +80V positive supply rails. The MAX5932 allows for the safe insertion and removal of circuit cards into a live ...

Page 2

Positive High-Voltage, Hot-Swap Controller (Voltages referenced to GND) V .........................................................................-0.3V to +85V CC SENSE, FB, ON ..........................................-0. TIMER, PWRGD......................................................-0.3V to +85V GATE ......................................................................-0.3V to +95V Maximum GATE Current ....................................-50mA, +150mA Maximum Current into Any Other Pin................................±50mA Stresses beyond ...

Page 3

Positive High-Voltage, Hot-Swap Controller (V = +24V, GND = 0V -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL ON Low-to-GATE Low Propagation Delay ON High-to-GATE High Propagation Delay FB Low-to-PWRGD Low ...

Page 4

Positive High-Voltage, Hot-Swap Controller MAX5932 FB SENSE 5V PWRGD GATE 5kΩ TIMER GND Figure 1. Test Circuit 1.313V FB t PLHFB PWRGD 1V Figure PWRGD Timing Test Circuit and Timing Diagrams 24V 1.313V ON ...

Page 5

Positive High-Voltage, Hot-Swap Controller (V = +48V +25°C, unless otherwise noted vs 2.7 2.4 2.1 1 +85° +25°C A 1.5 1.2 0 -40°C A 0.6 ...

Page 6

Positive High-Voltage, Hot-Swap Controller (V = +48V +25°C, unless otherwise noted TIMER PULLUP CURRENT vs. TEMPERATURE -60 -65 -70 -75 -80 -85 -90 -40 - TEMPERATURE (°C) ON LOW-VOLTAGE THRESHOLD vs. TEMPERATURE 1.265 ...

Page 7

Positive High-Voltage, Hot-Swap Controller PIN NAME On/Off Control Input used to implement the undervoltage lockout threshold and resets the part after fault condition (see the Detailed Description section). Power-Good Comparator Input. Connect a resistive divider ...

Page 8

Positive High-Voltage, Hot-Swap Controller PWRGD SENSE CC MAX5932 V GEN P CHARGE REF PUMP GEN 0.5V GATE DRIVER OPEN DRAIN 1.233V UNDERVOLTAGE V CC LOCKOUT 8.3V LOGIC 0.5V 1.233V Functional Diagram AND GATE V P 80µA TIMER ...

Page 9

Positive High-Voltage, Hot-Swap Controller Detailed Description The MAX5932 is a fully integrated hot-swap controller for positive supply rails. The device allows for the safe insertion and removal of circuit cards into live backplanes without causing glitches on the backplane power-supply ...

Page 10

Positive High-Voltage, Hot-Swap Controller Applications Information Hot-Circuit Insertion When circuit boards are inserted into a live backplane, the supply bypass capacitors on the boards draw high peak currents from the backplane power bus as they charge up. The transient currents ...

Page 11

Positive High-Voltage, Hot-Swap Controller RESPONSE TIME TO OVERCURRENT 100 (mV) CC SENSE Figure 8. Response Time to Overcurrent TIMER provides a method for programming the maxi- mum time ...

Page 12

Positive High-Voltage, Hot-Swap Controller V IN SHORT PIN R1 D1 49.9kΩ 30V 1% 1N5256B R2 3.4kΩ 0.68µF GND Figure 10. Overvoltage Detection OVERVOLTAGE WAVEFORMS 10µs/div Figure 11. Overvoltage Waveforms R SENSE Q1 0.025Ω IRF530 R5 10Ω 5% 0.1µF ...

Page 13

Positive High-Voltage, Hot-Swap Controller V IN SHORT PIN R1 0.1µF 294kΩ 10.2kΩ 5 TIMER 1% C2 0.68µF GND Figure 12. Active-Low Enable Module GATE DRIVE vs ...

Page 14

Positive High-Voltage, Hot-Swap Controller IRF530 Figure 14. Recommended Layout for R1, R2, and *SMBJ51A 49.9kΩ 3.4kΩ 0.68µF GND *DIODES, INC. TRANSISTOR COUNT: 1573 PROCESS: BiCMOS SENSE R SENSE Q1 0.01Ω IRF530 R5 ...

Page 15

Positive High-Voltage, Hot-Swap Controller (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information TOP VIEW FRONT VIEW Maxim cannot ...

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