Datasheet > MC34653

MC34653

更新时间： 2024-11-10 01:13:47

品牌	Logo	应用领域
恩智浦 - NXP		连接器
页数	文件大小	规格书
24页	1805K
描述
1.0 A Negative Voltage Hot Swap Controller

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MC34653 数据手册

Archived by Freescale Semiconductor, Inc., 2008

Document Number: MC34653

Rev. 8.0, 2/2007

Freescale Semiconductor

Advance Information

1.0 A Negative Voltage Hot

Swap Controller

34653

The 34653 is a highly integrated -48 V hot swap controller with an

internal Power MOSFET. It provides the means to safely install and

remove boards from live -48 V backplanes without having to power

down the entire system. It regulates the inrush current, from the

supply to the load’s filter capacitor, to a user-programmable limit,

allowing the system to safely stabilize. A disable function allows the

user to disable the 34653 manually or through a microprocessor and

safely disconnect the load from the main power line.

HOT SWAP

The 34653 has active high and active low power good output

signals that can be used to directly enable a power module load.

Undervoltage and overvoltage detection circuitry monitors the input

voltage to check that it is within its operating range. A start-up delay

timer ensures that it is safe to turn on the Power MOSFET and charge

the load capacitor.

EF SUFFIX (Pb-Free)

98ASB42564B

A two-level current limit approach to controlling the inrush current

and switching on the load limits the peak power dissipation in the

Power MOSFET. Both current limits are user programmable.

8-PIN SOICN

Features

• Integrated Power MOSFET and Control IC in a Small Outline

Package

• Input Voltage Operation Range from -39 V to -74 V

• Programmable Overcurrent Limit with Auto Retry

• Programmable Charging Current Limit Independent of Load

Capacitor

ORDERING INFORMATION

Temperature

Device

Package

Range (T )

MCZ34653EF/R2

MC34653EF/R2

-40°C to 85°C

8 SOICN

• Start-Up and Retry Delay Timer

• Overvoltage and Undervoltage Detection

• Active High and Low Power Good Output Signals

• Thermal Shutdown

• Pb-Free Packaging Designated by Suffix Code EF

34653

DISABLE

Application

Dependent

GND

System

VPWR

VOUT

Load

Power

Supply

(Backplane)

-48 V

VIN

Optional

External

Components

ICHG

Optional

External

Components

ILIM

Figure 1. 34653 Simplified Application Diagram

* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

12 3 4 5 6 7...24

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与MC34653相关器件

型号	品牌	获取价格	描述	数据表
MC34653EF	NXP	获取价格	1.0 A Negative Voltage Hot Swap Controller
MC34653EF/R2	FREESCALE	获取价格	1.0 A Negative Voltage Hot Swap Controller
MC34653EFR2	NXP	获取价格	1.0 A Negative Voltage Hot Swap Controller
MC34670	FREESCALE	获取价格	IEEE 802.3af PD With Current Mode Switching Regulator
MC34671	FREESCALE	获取价格	Power Management IC
MC34671AEP	NXP	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 2 X 3 MM, 0.65 MM HEIGHT, 0.50 MM PITCH, ROHS C
MC34671AEP/R2	FREESCALE	获取价格	High Input Voltage 600mA Charger for Single-cell Li-Ion Batteries
MC34671AEPR2	NXP	获取价格	Battery Charger, single cell, 0.6Amp, QFN 8, Reel
MC34673	FREESCALE	获取价格	High Input Voltage 1.2A Charger for Single-cell Li-Ion Batteries
MC34673AEP	FREESCALE	获取价格	High Input Voltage 1.2A Charger for Single-cell Li-Ion Batteries

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