HV809 Off-Line High Voltage EL Lamp Driver Ordering Information Package Options Device 8-Lead SO 8-Lead SO + Slug 7-Pin TO-220 Die HV809 HV809LG HV809SG HV809K2 HV809X Features General Description ❏ Processed with HVCMOS® technology The Supertex HV809 is an off-line high voltage EL lamp driver integrated circuit designed for driving EL lamps of up to 350nF at 400Hz. The input supply voltage can be a rectified nominal 120V AC source or any other DC source up to 200V. The HV809 will supply the EL lamp with an AC square wave with a peak-to-peak voltage of two times the input DC voltage. ❏ Input voltage up to 200V DC ❏ 400V peak-to-peak output voltage ❏ Output load up to 350nF (100 in2 for 3.5nF/in2 lamp) ❏ Adjustable output lamp frequency The HV809 has two internal oscillators, a low output voltage linear regulator, and a high voltage output H-bridge. The high voltage output H-bridge frequency is set by an external resistor connected between the REL-osc and GND pins. The EL lamp is connected between VA and VB. For the HV809 in the 8-pin package, an external RC network can be connected between the oscillator’s osc1 and osc2 pins to pulse the EL lamp on and off. ❏ Adjustable On/Off pulsing frequency Applications ❏ Electronic Organizers ❏ Handheld Portable Computers Pin Configurations ❏ Display Signs ❏ Portable Instrumentation Equipment HVIN VDD osc2 osc1 7 3 6 4 5 VA VB GND REL-osc SO-8 TAB: GND +210V VDD, Internal Logic Voltage +15V Operating Temperature Range Storage Temperature Range Power Dissipation 8 2 top view Absolute Maximum Ratings HVIN, Input Voltage 1 SO-8 -25°C to +85°C -55°C to +150°C 500mW SO-8 + Slug 1.5 Watts 7 Pin TO-220 15 Watts Note: *All voltages are referenced to GND. 12 3 456 7 Pin 01: Pin 02: Pin 03: Pin 04: Pin 05: Pin 06: Pin 07: TAB: osc1 VDD REL-osc GND VB VA HVIN GND 7 -Pin TO-220 For detailed circuit and application information, please refer to Application Note AN-H36. 11/12/01 Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, 1 refer to the most current databook or to the Legal/Disclaimer page on the Supertex website. HV809 Electrical Characteristics DC Characteristics (Over recommended operating conditions unless otherwise specified, TA = 25°C) Symbol IIN IINQ Parameter Min Typ Max Units 70 mA HVIN = 170V, REL = 1.0MΩ, CL = 350nF 9 mA HVIN = 170V, REL = 1.0MΩ, CL = 50nF 400 µA HVIN = 170V, REL-osc = 1.0MΩ, osc1 = GND, No Load 100 µA High voltage supply current Quiescent supply current Conditions HVIN = 170V, REL-osc = 1.0MΩ osc1 = VDD, No Load ISINK osc2 sink current 300 µA Vosc2 = 1.0V ISOURCE osc2 source current 100 µA Vosc2 = VDD -1.0V Iosc1 osc1 logic input leakage current ±10 µA Vosc1 = 0V and VDD VH osc1 hysteresis voltage 2.5 V VA-B Min differential output voltage across lamp VDD Internal supply voltage IDD (OUT) Maximum output VDD current 8 10 400 V HVIN = 200V 12 V No load on VDD 4 mA For HV809K2, ∆VDD = 1.0V AC Characteristics (Over recommended operating conditions unless otherwise specified, TA = 25°C) Symbol fEL Parameter VA-B output drive frequency Min Typ Max Units Conditions 320 400 480 Hz REL-osc = 1.0MΩ, osc1 = GND, CL = 350nF 0.8 1.0 1.2 KHz REL-osc = 390KΩ, osc1 = GND, CL = 150nF tr Output rise time 180 250 µs CL = 150nF, HVIN = 170V tf Output fall time 50 100 µs CL = 150nF, HVIN = 170V Typ Max Units 200 V 350 nF REL-osc = 1.0MΩ, HVIN = 170V 150 nF REL-osc = 390KΩ, HVIN = 170V 85 °C Recommended Operating Conditions Symbol Parameter HVIN High voltage input CL Load capacitance TA Operating temperature Min 50 -25 Function Table osc1 Outputs VA and VB GND Enabled VDD Disabled 2 Conditions HV809 Block Diagram HVIN Linear Regulator Q VA Q VDD Q osc1 Logic and osc osc2 REL-osc VB Q GND ∗Τηε ΕΝΑβλ Typical Applications Enable 120VAC HV80 9 Disable EL Lamp Cdd Cin Rel GND HVIN Figure 1: AC Off-Line EL Lamp 3 HV809 Typical Application 3 to 12VDC Vbatt DC-DC Converter 50V to 200VDC 1 HVIN VA 8 2 VDD VB 7 3 osc2 GND 6 4 osc1 REL-osc 5 EL Lamp R HV809 REL C Figure 2: Pulsing EL Lamp 3 to 12VDC Vbatt DC-DC Converter 50V to 200VDC R 1 HVIN VA 8 2 VDD VB 7 3 osc2 GND 6 4 osc1 REL-osc 5 HV809 EL Lamp REL C Figure 3: Push Button Delayed Turn Off 11/12/01 ©2001 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited. 4 1235 Bordeaux Drive, Sunnyvale, CA 94089 TEL: (408) 744-0100 • FAX: (408) 222-4895 www.supertex.com