MIC2582JBM Micrel Semiconductor, MIC2582JBM Datasheet

MIC2582JBM

Manufacturer Part Number

MIC2582JBM

Description

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC2582JBM.pdf (22 pages)

Specifications of MIC2582JBM

Case

SOP8

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MIC2582JBMTR

Manufacturer:

Quantity:

6 464

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Download datasheet (191Kb)

General Description

The MIC2582 and MIC2583 are single channel positive

voltage hot swap controllers designed to allow the safe

insertion of boards into live system backplanes. The MIC2582

and MIC2583 are available in 8-pin SOIC and 16-pin QSOP

packages, respectively. Using a few external components

and by controlling the gate drive of an external N-Channel

MOSFET device, the MIC2582/83 provide inrush current

limiting and output voltage slew rate control in harsh, critical

power supply environments. Additionally, a circuit breaker

function will latch the output MOSFET off if the current limit

threshold is exceeded for a determined period. The MIC2583R

option includes an auto-restart function upon detecting an

overcurrent condition.

Typical Application

May 2005

MIC2582/MIC2583

/FAULT

Signal

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

GND

12V

CONNECTOR

BACKPLANE

CONNECTOR

PCB EDGE

Medium

(or Short) Pin

Long Pin

*Undervoltage (Input) = 10.5V

*Undervoltage (Output) &

Power-Good (Output) = 11.0V

*START-UP Delay = 12ms

*/POR Delay = 50ms

*Circuit Breaker Response Time = 1.5ms

**D1 is BZX84C18

*(See Functional Description and Applications Information)

47k

(18V)

Short Pin

**D1

Long Pin

76.8k

Figure 1. MIC2583/83R Typical Application Circuit

9.76k

3.3‰

1 F

/FAULT

CPOR

VCC

0.006

0.1 F

SENSE

MIC2583/83R

SENSE

GND

7, 8

Features

• MIC2582:

• 2.3V to 13.2V supply voltage operation

• Surge voltage protection up to 20V

• Current regulation limits inrush current regardless of

• Programmable inrush current limiting

• Electronic circuit breaker

• Dual-level overcurrent fault sensing eliminates false

• Fast response to short circuit conditions (<1 s)

• Programmable output undervoltage detection

• Undervoltage Lockout (UVLO) protection

• Auto-restart function (MIC2583R)

• Power-On Reset and Power-Good status outputs

• /FAULT status output (MIC2583 and MIC2583R)

Applications

• RAID systems

• Base stations

• PC board hot swap insertion and removal

• Hot swap CompactPCI cards

• Network switches

CFILTER

load capacitance

tripping

(Power-Good for the MIC2583 and MIC2583R only)

PWRGD

Pin-for-pin functional equivalent to the LTC1422

8200pF

Single Channel Hot Swap Controllers

(PowerPAK“ SO-8)

GATE

/POR

DIS

Si7892DP

MIC2582/MIC2583

0.01 F

Power-Good Output

93.1k

12.4k

Power-On Reset Output

LOGIC

47k

LOGIC

500 F

LOAD

47k

MIC2582/MIC2583

DOWNSTREAM

CONTROLLER

/RESET

12V@6A

OUT

Micrel

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