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| HV809 Off-Line High Voltage EL Lamp Driver Ordering Information Package Options Device HV809 8-Lead SO HV809LG 8-Lead SO + Slug HV809SG 7-Pin TO-220 HV809K2 Die HV809X Features Processed with HVCMOS(R) technology 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 Adjustable On/Off pulsing frequency General Description 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. 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. Applications Electronic Organizers Handheld Portable Computers Display Signs Portable Instrumentation Equipment Pin Configurations HVIN VDD osc2 osc1 1 2 3 4 8 7 6 5 VA VB GND REL-osc Absolute Maximum Ratings HVIN, Input Voltage VDD, Internal Logic Voltage Operating Temperature Range Storage Temperature Range Power Dissipation SO-8 SO-8 + Slug 7 Pin TO-220 Note: *All voltages are referenced to GND. top view SO-8 TAB: GND Pin 01: Pin 02: Pin 03: Pin 04: Pin 05: Pin 06: Pin 07: TAB: osc1 VDD REL-osc GND VB VA HVIN GND +210V +15V -25C to +85C -55C to +150C 500mW 1.5 Watts 15 Watts 12 3 456 7 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, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website. 1 HV809 Electrical Characteristics DC Characteristics (Over recommended operating conditions unless otherwise specified, TA = 25C) Symbol Parameter Min Typ Max 70 IIN High voltage supply current 9 IINQ Quiescent supply current 400 100 ISINK ISOURCE Iosc1 VH VA-B VDD IDD (OUT) osc2 sink current osc2 source current osc1 logic input leakage current osc1 hysteresis voltage Min differential output voltage across lamp Internal supply voltage Maximum output VDD current 8 10 300 100 10 2.5 400 12 4 mA A A A A A V V V mA HVIN = 200V No load on VDD For HV809K2, VDD = 1.0V Units mA Conditions HVIN = 170V, REL = 1.0M, CL = 350nF HVIN = 170V, REL = 1.0M, CL = 50nF HVIN = 170V, REL-osc = 1.0M, osc1 = GND, No Load HVIN = 170V, REL-osc = 1.0M osc1 = VDD, No Load Vosc2 = 1.0V Vosc2 = VDD -1.0V Vosc1 = 0V and VDD AC Characteristics (Over recommended operating conditions unless otherwise specified, TA = 25C) Symbol fEL Parameter VA-B output drive frequency Min 320 0.8 tr tf Output rise time Output fall time Typ 400 1.0 180 50 Max 480 1.2 250 100 Units Hz KHz s s Conditions REL-osc = 1.0M, osc1 = GND, CL = 350nF REL-osc = 390K, osc1 = GND, CL = 150nF CL = 150nF, HVIN = 170V CL = 150nF, HVIN = 170V Recommended Operating Conditions Symbol HVIN CL TA Parameter High voltage input Load capacitance Min 50 Typ Max 200 350 150 Operating temperature -25 85 Units V nF nF C REL-osc = 1.0M, HVIN = 170V REL-osc = 390K, HVIN = 170V Conditions Function Table osc1 GND VDD Outputs VA and VB Enabled Disabled 2 HV809 Block Diagram HVIN Linear Regulator Q VA Q VDD osc1 osc2 REL-osc GND Logic and osc Q VB Q Typical Applications Enable 120VAC HV80 9 Disable EL Lamp Cin Cdd Rel GND HVIN Figure 1: AC Off-Line EL Lamp 3 HV809 Typical Application 3 to 12VDC Vbatt 50V to 200VDC 1 2 3 R 4 osc1 REL-osc 5 REL DC-DC Converter HVIN VDD osc2 VA 8 VB 7 GND 6 EL Lamp HV809 C Figure 2: Pulsing EL Lamp 3 to 12VDC Vbatt DC-DC Converter 50V to 200VDC 1 2 3 R 4 HVIN VDD osc2 osc1 VA 8 VB 7 GND 6 REL-osc 5 REL EL Lamp HV809 C Figure 3: Push Button Delayed Turn Off 11/12/01 (c)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 |
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