CS5124XD8 ON Semiconductor, CS5124XD8 Datasheet

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CS5124XD8

Manufacturer Part Number
CS5124XD8
Description
IC CTRLR PWM CURRENT MODE 8-SOIC
Manufacturer
ON Semiconductor
Datasheet

Specifications of CS5124XD8

Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
440kHz
Duty Cycle
85%
Voltage - Supply
7.6 V ~ 20 V
Buck
No
Boost
No
Flyback
Yes
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-40°C ~ 105°C
Package / Case
8-SOIC (3.9mm Width)
Frequency-max
440kHz
Output Voltage
- 0.3 V to + 20 V
Output Current
200 mA
Mounting Style
SMD/SMT
Switching Frequency
440 KHz
Operating Supply Voltage
7.7 V to 20 V
Maximum Operating Temperature
+ 135 C
Fall Time
25 ns
Minimum Operating Temperature
- 40 C
Rise Time
45 ns
Synchronous Pin
No
Topology
Flyback, Forward
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CS5124XD8G
Manufacturer:
ON Semiconductor
Quantity:
34
Company:
Part Number:
CS5124XD8G
Quantity:
4 900
CS5124
High Performance,
Integrated Current Mode
PWM Controllers
specifically for DC−DC converters found in the telecommunications
industry. The CS5124 integrates many commonly required current
mode power supply features and allows the power supply designer to
realize substantial cost and board space savings.
Slope Compensation, Sleep On/Off, Undervoltage Lock Out, Thermal
Shutdown, Soft−Start Timer, Low Voltage Current Sense for Resistive
Sensing, Second Current Threshold for Pulse−by−Pulse overcurrent
Protection, a Direct Optocoupler Interface and Leading Edge Current
Blanking.
pin SOIC narrow package.
Features
July, 2009 − Rev. 7
The CS5124 is a fixed frequency current mode controller designed
The CS5124 integrates the following features: Internal Oscillator,
The CS5124 has supply range of 7.7 V to 20 V and is available in 8
400 kHz Oscillating Frequency
Line UVLO Monitoring
Low Current Sense Voltage for Resistive Current Sensing
Bias for Startup Circuitry
Thermal Shutdown
Sleep On/Off Pin
Soft−Start Timer
Leading Edge Blanking
Direct Optocoupler Interface
90 ns Propagation Delay
35 ns Driver Rise and Fall Times
Sleep Mode
Pb−Free Packages are Available
Semiconductor Components Industries, LLC, 2009
1
†For information on tape and reel specifications,
CS5124XD8
CS5124XD8G
CS5124XDR8
CS5124XDR8G
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Device
A
L
Y
W
G
ORDERING INFORMATION
PIN CONNECTIONS AND
UVLO
8
BIAS
V
MARKING DIAGRAM
SS
CC
http://onsemi.com
1
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
1
(Pb−Free)
(Pb−Free)
Package
SOIC−8
SOIC−8
SOIC−8
SOIC−8
Publication Order Number:
CASE 751
D SUFFIX
SOIC−8
8
2500 Tape & Reel
2500 Tape & Reel
GND
GATE
I
V
SENSE
95 Units/Rail
95 Units/Rail
FB
Shipping
CS5124/D

Related parts for CS5124XD8

CS5124XD8 Summary of contents

Page 1

... Year W = Work Week G = Pb−Free Package ORDERING INFORMATION Device Package CS5124XD8 SOIC−8 CS5124XD8G SOIC−8 (Pb−Free) CS5124XDR8 SOIC−8 CS5124XDR8G SOIC−8 (Pb−Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D ...

Page 2

L1 36−75V 200 100 V 0 100 V 17.4 k ENABLE C9 1000 pF 48VRTN MAXIMUM RATINGS Operating Junction Temperature Storage Temperature Range ESD Susceptibility ...

Page 3

ELECTRICAL CHARACTERISTICS 0.33 mF 1.0 nF (ESR = SENSE V(CC) GATE Characteristic General I Operating − V not switching CC GATE Low ...

Page 4

ELECTRICAL CHARACTERISTICS (continued 0.33 mF 1.0 nF (ESR = SENSE V(CC) GATE Characteristic Soft−Start Soft−Start Charge Current Soft−Start Discharge Current V Voltage when V Begins ...

Page 5

PIN # Pin Power Input Pin BIAS V Clamp Output Pin. This pin will control the gate of an N−channel MOSFET that in turn regulates Vcc. This pin is CC internally clamped at 15 ...

Page 6

V UVLO COMP REF − ENABLE + V 7.7 V/7.275 V INE UVLO COMP L − TSHUT + 150 C/125 C 2.62 V/2. UVLO − REMOTE BIAS (SLEEP) ...

Page 7

Soft−Start error amp is clamped at 2.9 V. During fault conditions the Soft−Start capacitor is discharged at 10 mA. Fault Conditions The CS5124 recognizes the following faults: UVLO off, Thermal Shutdown and Second Current REF(OK) Threshold. Once ...

Page 8

UVLO and Thermal Shutdown Interaction The UVLO pin and thermal shutdown circuit share the same internal comparator. During high temperature operation (T > 100 C) the UVLO pin will interact with the J thermal shutdown circuit. This interaction increases the ...

Page 9

If the second current sense threshold is tripped, the converter will shut off and restart in Soft−Start mode until the high current condition is removed. The dead time after a second threshold overcurrent condition will primarily be determined by ...

Page 10

... SEATING PLANE −Z− 0.25 (0.010 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE THERMAL DATA Parameter R qJC R qJA PACKAGE DIMENSIONS SOIC−8 D SUFFIX CASE 751−07 ISSUE AG ...

Page 11

... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...

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