CS5126XD8 Просмотр технического описания (PDF) - ON Semiconductor
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CS5126XD8 Datasheet PDF : 12 Pages
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CS5124, CS5126
High Performance,
Integrated Current Mode
PWM Controllers
The CS5124/6 is a fixed frequency current mode controller
designed specifically for DC–DC converters found in the
telecommunications industry. The CS5124/6 integrates many
commonly required current mode power supply features and allows
the power supply designer to realize substantial cost and board space
savings. The product matrix is as follows:
CS5124: 400 kHz w/VBIAS Pin, 195 mV first current sense threshold.
CS5126: 200 kHz w/SYNC Pin, 335 mV first current sense threshold.
The CS5124/6 integrates the following features: Internal Oscillator,
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 Over Current
Protection, a Direct Optocoupler Interface and Leading Edge Current
Blanking.
The CS5124/6 has supply range of 7.7 V to 20 V and is available in
8 pin SO narrow package.
Features
• Line UVLO Monitoring
• Low Current Sense Voltage for Resistive Current Sensing
• External Synchronization to Higher or Lower Frequency Oscillator
(CS5126 Only)
• Bias for Start Up Circuitry (CS5124 Only)
• 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
http://onsemi.com
8
1
SO–8
D SUFFIX
CASE 751
PIN CONNECTIONS AND
MARKING DIAGRAM
1
VCC
BIAS
UVLO
SS
CS5124 8
GND
GATE
ISENSE
VFB
1
VCC
UVLO
SYNC
SS
CS5126 8
GND
GATE
ISENSE
VFB
A
WL, L
YY, Y
WW, W
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
CS5124XD8
CS5124XDR8
CS5126XD8
CS5126XDR8
Package
Shipping
SO–8
SO–8
SO–8
SO–8
95 Units/Rail
2500 Tape & Reel
95 Units/Rail
2500 Tape & Reel
© Semiconductor Components Industries, LLC, 2001
1
April, 2001 – Rev. 4
Publication Order Number:
CS5124/D
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