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Swap Controller. 34653 Datasheet

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Swap Controller. 34653 Datasheet






34653 Controller. Datasheet pdf. Equivalent




34653 Controller. Datasheet pdf. Equivalent





Part

34653

Description

Negative Voltage Hot Swap Controller



Feature


www.DataSheet4U.com Freescale Semicondu ctor Advance Information Document Numb er: MC34653 Rev. 8.0, 2/2007 1.0 A Neg ative Voltage Hot Swap Controller The 3 4653 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 s.
Manufacture

Freescale Semiconductor

Datasheet
Download 34653 Datasheet


Freescale Semiconductor 34653

34653; ystem. It regulates the inrush current, from the supply to the load’s filter capacitor, to a user-programmable limit , allowing the system to safely stabili ze. A disable function allows the user to disable the 34653 manually or throug h a microprocessor and safely disconnec t the load from the main power line. Th e 34653 has active high and active low power good output si.


Freescale Semiconductor 34653

gnals that can be used to directly enabl e a power module load. Undervoltage and overvoltage detection circuitry monito rs the input voltage to check that it i s within its operating range. A start-u p delay timer ensures that it is safe t o turn on the Power MOSFET and charge t he load capacitor. A two-level current limit approach to controlling the inrus h current and swit.


Freescale Semiconductor 34653

ching on the load limits the peak power dissipation in the Power MOSFET. Both c urrent limits are user programmable. Fe atures • Integrated Power MOSFET and Control IC in a Small Outline Package Input Voltage Operation Range from - 39 V to - 74 V • Programmable Overcu rrent Limit with Auto Retry • Program mable Charging Current Limit Independen t of Load Capacitor • Star.

Part

34653

Description

Negative Voltage Hot Swap Controller



Feature


www.DataSheet4U.com Freescale Semicondu ctor Advance Information Document Numb er: MC34653 Rev. 8.0, 2/2007 1.0 A Neg ative Voltage Hot Swap Controller The 3 4653 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 s.
Manufacture

Freescale Semiconductor

Datasheet
Download 34653 Datasheet




 34653
www.DataSheet4U.com
Freescale Semiconductor
Advance Information
Document Number: MC34653
Rev. 8.0, 2/2007
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.
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.
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.
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
• 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
HOT SWAP
EF SUFFIX (Pb-Free)
98ASB42564B
8-PIN SOICN
ORDERING INFORMATION
Device
MCZ34653EF/ R2
MC34653EF/ R2
Temperature
Range (TA)
-40°C to 85°C
Package
8 SOICN
34653
GND
System
Power
Supply
(Backplane)
DISABLE
VPWR
PG
PG
VOUT
Application
Dependent
Load
-48 V
VIN
Optional
External
Components
ILIM ICHG
Optional
External
Components
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.
© Freescale Semiconductor, Inc., 2007. All rights reserved.




 34653
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
DISABLE
VPWR
Referenced VPWR
Logic
Fixed
Oscillator
ILIM
ICHG
3.1 V
8.0 µA
External
Resistors
Detection
-
1.3 V +
UVLO
-
1.3 V +
UV
+
1.3 V -
OV
Logic
Thermal
Shutdown
Programmable
Current Limit
Sensor MOSFET
Gate Control
Driver
VIN
PG
PG
Power MOSFET
VIN
Figure 2. 34653 Simplified Internal Block Diagram
VOUT
34653
2
Analog Integrated Circuit Device Data
Freescale Semiconductor




 34653
PIN CONNECTIONS
PIN CONNECTIONS
PG
PG
VOUT
VIN
1
2
3
4
8 ICHG
7 ILIM
6 DISABLE
5 VPWR
Figure 3. 8-SOICN Pin Connections
Table 1. 8-SOICN Pin Definitions
A functional description of each pin can be found in the FUNCTIONAL PIN DESCRIPTION section beginning on page 8.
Pin
Pin Name
Formal Name
Definition
1 PG Power Good Output This is an active high power good output signal. This pin is referenced to VIN.
(Active High)
2 PG Power Good Output This is an active low power good output signal. This pin is referenced to VIN.
(Active Low)
3
VOUT
Voltage Output
This pin is the drain of the internal Power MOSFET and supplies a current limited voltage
to the load.
4 VIN Negative Supply This is the most negative power supply input. All pins except DISABLE are referenced
Voltage Input
to this input.
5
VPWR
Positive Supply This is the most-positive power supply input. The load connects between this pin and the
Voltage Input
VOUT pin.
6 DISABLE Disable Input Control This pin is used to easily disconnect or connect the load from the main power line by
disabling or enabling the 34653. It can also be used to reset the fault conditions that
cause a “Power No Good” signal. This pin is referenced to VPWR.
7 ILIM Current Limit Control This pin is used to set the overcurrent limit during normal operation.
8
ICHG
Charging Current This pin is used to set the load’s input capacitor charging current limit, hence limiting the
Limit Control
inrush current to a known constant value.
Analog Integrated Circuit Device Data
Freescale Semiconductor
34653
3






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