End of Life. Last Available Purchase Date is 31-Dec-2014 Si9102 Vishay Siliconix 3-W High-Voltage Switchmode Regulator DESCRIPTION FEATURES 10 to 120 V Input Range The Si9102 high-voltage switchmode regulator is a mono- Current-Mode Control lithic BiC/DMOS integrated circuit which contains most of the components necessary to implement a high-efficiency dc-to- On-chip 200 V, 7 MOSFET Switch dc converter up to 3 watts. It can either be operated from SHUTDOWN and RESET a low-voltage dc supply, or directly from a 10 to 120 V un- High Efficiency Operation (> 80 %) regulated dc power source. Internal Start-Up Circuit This device may be used with an appropriate transformer to Internal Oscillator (1 MHz) implement most single-ended isolated power converter topologies (i.e., flyback and forward). The Si9102 is available in both standard and lead (Pb)-free 14-pin plastic DIP and 20-pin PLCC packages which are specified to operate over the industrial temperature range of - 40 C to 85 C. FUNCTIONAL BLOCK DIAGRAM OSC OSC FB COMP DISCHARGE IN OUT 14 (20) 13 (18) 9 (12) 8 (11) 7 (10) Error Amplifier OSC - 10 (14) 1 Clock ( / f ) + 2 OSC V REF 2 V Current-Mode 4 V (1 %) - Comparator R + Q Ref S Gen 3 (5) + DRAIN C/L - Comparator 5 (8) -V IN 1.2 V (BODY) 1 (2) Current To BIAS Sources Internal 4 (7) SOURCE Circuits V CC 6 (9) V CC Undervoltage 11 (16) SHUTDOWN 2 (3) Comparator S +V - IN Q 12 (17) 8.8 V + RESET R - + 9.4 V Note: Figures in parenthesis represent pin numbers for 20-pin package. Document Number: 70001 www.vishay.com S-70497-Rev. H, 19-Mar-07 1End of Life. Last Available Purchase Date is 31-Dec-2014 Si9102 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Parameter Limit Unit Voltages Referenced to - V (V < + V + 0.3 V) IN CC IN V 15 CC +V 120 V IN V 200 DS I (Peak) (Note: 300 s pulse, 2 % duty cycle) 2 A D I (rms) 250 mA D Logic Inputs (RESET, SHUTDOWN, OSC IN) - 0.3 V to V + 0.3 V CC V Linear Inputs (FEEDBACK, SOURCE) - 0.3 to 7 HV Pre-Regulator Input Current (continuous) 3 mA Storage Temperature - 65 to 125 Operating Temperature - 40 to 85 C Junction Temperature (T ) 150 J b 750 14-Pin Plastic DIP (J Suffix) a mW Power Dissipation (Package) c 1400 20-Pin PLCC (N Suffix) 14-Pin Plastic DIP 167 Thermal Impedance ( ) C/W JA 20-Pin PLCC 90 Notes: a. Device Mounted with all leads soldered or welded to PC board. b. Derate 6 mW/C above 25 C. c. Derate 11.2 mW/C above 25 C. 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 Voltages Referenced to - V IN V 9.5 to 13.5 V CC R 25 k to 1 M OSC Linear Inputs 0 to 7 V + V 10 to 120 V IN f 40 kHz to 1 MHz OSC Digital Inputs 0 to V CC a SPECIFICATIONS Test Conditions Limits Unless Otherwise Specified D Suffix - 40 to 85 C DISCHARGE = - V = 0 V IN V = 10 V, + V = 48 V CC IN b d c d R = 390 k, R = 330 k Parameter Symbol BIAS OSC Temp Min Typ Max Unit Reference OSC IN = - V (OSC Disabled) Room 3.92 4.0 4.08 IN Output Voltage V V R R = 10 M Full 3.86 4.14 L e Output Impedance Z Room 15 30 45 k OUT Short Circuit Current I V = - V Room 70 100 130 A SREF REF IN e Temperature Stability T Full 0.5 1.0 mV/C REF Oscillator e Maximum Frequency f R = 0 Room 1 3 MHz MAX OSC g R = 330 k Room 80 100 120 OSC Initial Accuracy f kHz OSC g R = 150 k Room 160 200 240 OSC Voltage Stability f/f f/f = f(13.5 V) - f(9.5 V)/f(9.5 V) Room 10 15 % e Temperature Coefficient T Full 200 500 ppm/C OSC www.vishay.com Document Number: 70001 2 S-70497-Rev. H, 19-Mar-07