HV9110 High-Voltage Current-Mode PWM Controller General Description Features 10 to 120V input voltage range The Supertex HV9110 is a BiCMOS/DMOS single-output, Current-mode control pulse width modulator IC intended for use in high-speed, high-efciency switch mode power supplies. It provides all the High efciency functions necessary to implement a single-switch current mode Up to 1.0MHz internal oscillator PWM, in any topology, with a minimum of external parts. Internal start-up circuit Low internal noise Because the HV9110 utilizes Supertexs proprietary BiCMOS/ 50% maximum duty cycle DMOS technology, it requires less than one tenth of the operating power of conventional bipolar PWM ICs, and can operate at more than twice their switching frequency. The dynamic range Applications for regulation is also increased, to approximately 8 times that of similar bipolar parts. It starts directly from any DC input DC/DC converters voltage between 10 and 120VDC, requiring no external power Distributed power systems resistor. The output stage is push-pull CMOS and thus requires ISDN equipment no clamping diodes for protection, even when signicant lead PBX systems length exists between the output and the external MOSFET. The Modems clock frequency is set with a single external resistor. Accessory functions are included to permit fast remote shutdown (latching or nonlatching) and under voltage shutdown. For similar ICs intended to operate directly from up to 450VDC input, please consult the data sheets for the HV9120 and HV9123. For detailed circuit and application information, please refer to application notes AN-H13 and AN-H21 to AN-H24. Functional Block Diagram OSC OSC FB COMP IN OUT 14 13 8 7 Error Amplifier OSC 10 To VDD VREF + 2V T Q Modulator Comparator 4V R 4 Q + REF OUTPUT S GEN + Current Limit 5 Comparator -VIN To 1 Current 1.2V Internal BIAS 3 Sources Circuits SENSE 6 VDD VDD 11 2 Undervoltage +VIN Comparator S SHUTDOWN Q + R RESET 8.1V 12 8.6V Pre-regulator/Startup 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com + HV9110 Ordering Information 14-Lead Narrow Body SOIC 8.65x3.90mm body Device 1.75mm height (max) 1.27mm pitch HV9110 HV9110NG-G -G indicates package is RoHS compliant (Green) Pin Conguration Absolute Maximum Ratings OSC IN NC VREF Parameter Value SHUTDOWN RESET Input voltage, V 120V COMP IN FB Logic voltage, V 15.5V DD OSC OUT VDD Logic linear input, -VIN -0.3V to V +0.3V DD OUTPUT FB and sense input voltage SENSE +VIN Storage temperature -65C to +150C BIAS 14-Lead Narrow Body SOIC (NG) Power dissipation 750mW Stresses beyond those listed under Absolute Maximum Ratings may Product Marking cause permanent damage to the device. These are stress ratings only, Top Marking and functional operation of the device at these or any other conditions Y = Last Digit of Year Sealed HV9110NG beyond those indicated in the operational sections of the specications is WW = Week Sealed YWW LLLLLLLL not implied. Exposure to absolute maximum rating conditions for extended L = Lot Number periods may affect device reliability. C = Country of Origin* Bottom Marking A = Assembler ID* = Green Packaging CCCCCCCCC AAA *May be part of top marking 14-Lead Narrow Body SOIC (NG) Electrical Characteristics (Unless otherwise specied, V = 10V, +V = 48V, -V = 0V, R = 390K, R = 330K, T = 25C.) DD IN IN BIAS OSC A Sym Parameter Min Typ Max Units Conditions Reference - 3.92 4.00 4.08 R = 10M L V Output voltage V REF R = 10M, L - 3.82 4.00 4.16 T = -55C to 125C A Z Output impedance 15 30 45 K --- OUT I Short circuit current - - 125 250 A V = -V SHORT REF IN V Change in V with temperature - 0.25 - mV/C T = -55C to 125C REF REF A Oscillator f Oscillator frequency - 1.0 3.0 - MHz R = 0M MAX OSC - 80 100 120 R = 330K OSC 1 f Initial accuracy KHz OSC - 160 200 240 R = 150K OSC - Voltage stability - - - 15 % 9.5V< V <13.5V DD - Temperature coefcient - 170 - ppm/C T = -55C to 125C A Notes: Guaranteed by design. 1. Stray capacitance on OSC In pin must be 5.0pF. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com 2