SiP2800/01/02/03/04/05
New Product
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Vishay Siliconix
Low Power Consumption Current Mode Controller
APPLICATIONS
D D D D D Efficiency-Enhanced DC/DC Converter Modules Low Quiescent Current Standby Power Supplies Offline (AC/DC) Power Supplies Universal Input Power Supplies Buck, Boost, and Buck-Boost Converters
FEATURES
D D D D D D Pin-for-Pin Compatible with UCC280X Controllers Enhanced Performance UC284X for New Designs 100-mA Typical Start-Up Current 500-mA Typical Operating Current Internal Soft Start at Power-On and After Fault 100-ns Internal Leading Edge Blanking
DESCRIPTION
The SiP280X family includes six high-speed, low power consumption, BiCMOS Current Mode Controllers. These integrated circuits contain all of the control and drive functions required for off-line and dc-to-dc current-mode switching power supplies. Their advanced architecture enables the implementation of full-featured designs with minimal external parts count. Maximum Duty Cycle
100% 50% 100% 100% 50% 50%
The SiP280X family controllers are available in both standard and lead (Pb)-free, SO-8 and TSSOP-8 packages, and are rated for operation over the industrial temperature range of --40 to 85 _C.
Part Number
SiP2800 SiP2801 SiP2802 SiP2803 SiP2804 SiP2805
Reference Voltage
5V 5V 5V 4V 5V 4V
Turn-On Threshold
7. 2 V 9. 4 V 12. 5 V 4. 1 V 12. 5 V 4. 1 V
Turn-Off Threshold
6. 9 V 7. 4 V 8. 3 V 3. 6 V 8. 3 V 3. 6 V
TYPICAL APPLICATION CIRCUIT
+48 V +
+
12 V/3 A
+
FB
VCC
COMP
SiP2801
RC REF GND
OUT CS
GND Flyback Converter for Point of Load Application
Document Number: 72660 S-41623—Rev. C, 30-Aug-04
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1
SiP2800/01/02/03/04/05
Vishay Siliconix
www. DataSheet4U. com
New Product
ABSOLUTE MAXIMUM RATINGS
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 V FB, Comp, CS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --0. 3 V to 6 V Power Disispation SO-8 . . . ...