Work in Progress SiP2800, SiP2801, SiP2802, SiP2803, SiP2804, SiP2805 Vishay Siliconix Low Power Consumption Current Mode Controller DESCRIPTION FEATURES Pin-for-pin compatible with UCC280X The SiP280X family includes six high-speed, low power controllers consumption, BiCMOS Current Mode Controllers. These Available Enhanced performance UC284X integrated circuits contain all of the control and drive for new designs functions required for off-line and DC/DC current-mode Available 100 A typical start-up current switching power supplies. Their advanced architecture enables the implementation of full-featured designs with 500 A typical operating current minimal external parts count. Internal soft start at power-on and after fault 100 ns internal leading edge blanking The SiP280X family controllers is available in lead (Pb)-free, Material categorization: For definitions of compliance SO-8 packages, and are rated for operation over the please see www.vishay.com/doc 99912 industrial temperature range of -40 C to 85 C. APPLICATIONS 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 Part Number Maximum Duty Cycle Reference Voltage Turn-On Threshold Turn-Off Threshold SiP2800 100 % 5 V 7.2 V 6.9 V SiP2801 50 % 5 V 9.4 V 7.4 V SiP2802 100 % 5 V 12.5 V 8.3 V SiP2803 100 % 4 V 4.1 V 3.6 V SiP2804 50 % 5 V 12.5 V 8.3 V SiP2805 50 % 4 V 4.1 V 3.6 V TYPICAL APPLICATION CIRCUIT + 48 V + + 12 V/3 A + V CC FB COMP SiP2801 OUT RC REF CS GND GND Flyback Converter for Point of Load Application * Pb containing terminations are not RoHS compliant, exemptions may apply. Document Number: 72660 For technical questions, contact: powerictechsupport vishay.com www.vishay.com S11-0598-Rev. E, 25-Apr-11 1 This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000SiP2800, SiP2801, SiP2802, SiP2803, SiP2804, SiP2805 Vishay Siliconix a ABSOLUTE MAXIMUM RATINGS Parameter Limit Unit b 12 V CC V FB, Comp, CS -0.3 to 6 Power Dissipation SO-8 1W Power Dissipation TSSOP-8 830 mW Storage Temperature -55 to 150 C Notes: a. Currents are positive into, negative out of the specificed terminal. b. In normal operation V is powered through a current limiting resistor. An absolute maximum of 12 V applies when V is driven from a low CC CC impedance source such that I does not exceed 30 mA. CC Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING RANGE Parameter Limit Unit Operating Temperature Range -40 to 85 C SPECIFICATIONS Test Conditions Unless Specified Limits V = 10 V, R = 100 k., C = 330 pF CC T T a b a C = 0.1 F, -40 C < T < 85 C Parameter Symbol Min. Typ. Max. Unit REF A Reference SiP2800 / SiP2801 / 4.925 5.000 5.075 SiP2802 / I = 0.2 mA, T = 25 C LOAD A SiP2804 Reference Voltage V V REF SiP2803 / 3.940 4.000 4.060 SiP2805 SiP2800 / SiP2801 / SiP2802 / SiP2804 4.88 5.00 5.10 SiP2803 / SiP2805 3.90 4.00 4.08 V 0.2 mA < I < 5 mA Load Regulation 10 30 mV LOAD LOAD V = 10 V to Clamp, T = 25 C 1.9 CC A Line Regulation V mV/V LINE V = 10 V to Clamp 2.5 CC V Noise 130 V NOISE 10 Hz < f < 10 kHz, T = 25 C A I Short Circuit Current -5 -35 mA SC Oscillator SiP2800 / SiP2801 / 40 46 52 SiP2802 / f Frequency kHz OSC SiP2804 SiP2803 / 26 31 36 SiP2805 Temperature Stability 2.5 % V Amplitude 2.25 2.40 2.55 P-P V V Peak Voltage 2.45 P www.vishay.com For technical questions, contact: powerictechsupport vishay.com Document Number: 72660 2 S11-0598-Rev. E, 25-Apr-11 This document is subject to change without notice. THE PRODUCT DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000