HV9985K6-G Supertex, HV9985K6-G Datasheet
HV9985K6-G
Specifications of HV9985K6-G
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HV9985K6-G Summary of contents
Page 1
... VDD1 GT1 CS1 GND1 VIN HV9985 GND (One Channel Shown PWMD1 CLK SKIP C SKIP ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 D1a R OVP1a CS1 OVP1b OVP1 Q1b FLT1 FDBK1 COMP1 C REF1 C1 R REF C R REF1 REF1 ● Tel: 408-222-8888 ● www.supertex.com HV9985 S ...
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... Ordering Information 40-Lead QFN 6.00x6.00mm body Device 1.00mm height (max) 0.50mm pitch HV9985 HV9985K6-G -G indicates package is RoHS compliant (‘Green’) Absolute Maximum Ratings Parameter VIN to GND VDD to GND, VDD 1-3 to GND All other pins to GND Junction temperature Storage ambient temperature range ...
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... V --- 150 kΩ 5.0V PWMD - GATE - GATE 2.0nF GATE 2.0nF GATE - % --- 1.37 V OVP rising - mV OVP falling 250 ns --- 100mV overdrive to the current 200 ns sense comparator 100 Ω GATE = Low < +85 C are guaranteed by design and characterization ● Tel: 408-222-8888 ● www.supertex.com HV9985 ...
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... RT = 400kΩ 560 kHz RT = 100kΩ 1000 kHz --- 300 ns 500pF capacitor at FLT pin 200 ns 500pF capacitor at FLT pin 700 ns --- 2.15 - --- 0.25 V REF = GND 250 ns FDBK = 2 • REF + 0.1V - μA --- - V --- < +85 C are guaranteed by design and characterization ● Tel: 408-222-8888 ● www.supertex.com HV9985 ...
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... FDA ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 5 EN VDD UVLO POR θ CLK A θ = 120 CLK B θ = 240 CLK C PWMDA BLANKING - CLKA 1 PWMDA 0.2V BLANKING PWMDA DIS 1 ● Tel: 408-222-8888 ● www.supertex.com HV9985 GND CLK RT GATE1 CS1 GND1 REF1 FDBK1 COMP1 ...
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... R Slope Compensation section). ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 6 –1.0V), this voltage determines the DD should be chosen so that the CS V – • I IN,PK is the maximum desired peak input current. IN,PK ● Tel: 408-222-8888 ● www.supertex.com HV9985 (see CS ...
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... IN,PK ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 7 between the ground of the boost P GATE Q1 VDD - DRAIN + C SC GATE GND discharged. Also DRAIN . When the FET is turned on, the O V DRAIN Fig. 3: Waveforms during turn-on ● Tel: 408-222-8888 ● www.supertex.com HV9985 + V DRAIN - is charged . The SC ...
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... PWM dimming response. By turning the disconnect switch off when PWMD goes low, the output capacitor is pre- vented from being discharged, and thus the PWM dimming response of the boost converter Improves dramatically. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 8 ● Tel: 408-222-8888 ● www.supertex.com HV9985 ...
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... Bordeaux Drive, Sunnyvale, CA 94089 • 300Ω • max ( COMP1 COMP2 COMP3 π = √ L • are the input inductor and output capacitor O = max ( IND1 IND2 IND3 > max ( COMP,MAX IND,MAX = ≈ 900ns(max) BLANK DELAY ● Tel: 408-222-8888 ● www.supertex.com HV9985 ...
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... Typically, the OVP resistor dividers would be located away from the IC. To prevent false trigerrings of the IC due to noise at the OVP pin, a small bypass capacitor (1.0nF) right at the OVP pin is recommended. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 10 ● Tel: 408-222-8888 ● www.supertex.com HV9985 ...
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... Layout Guidelines Input Return Terminal Star Connection of GND Reference GND2 VDD2 GND1 VDD1 HV9985 REF1 VDD REF2 GND GND Tab Connection ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 11 VDD Connection GND3 VDD3 REF3 REF Connection ● Tel: 408-222-8888 ● www.supertex.com HV9985 ...
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... PWM dimming of the three channels is accomplished by using the PWMD pins. The three pins directly 18 PWMD2 control the PWM dimming of the three channels and a square wave input should be applied at these pins. 19 PWMD3 ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 12 ● Tel: 408-222-8888 ● www.supertex.com HV9985 ...
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... FDBK2 external sense resistors. 23 FDBK3 1 REF1 The voltage at this pin sets the output current level for each channel. Recommended voltage range for 10 REF2 this pin is 0 – 1.25V. 22 REF3 ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 13 ● Tel: 408-222-8888 ● www.supertex.com HV9985 ...
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... GATE3 37 GND1 Ground return for each of the channels recommended that all the GNDs of the IC be connected 32 GND2 together in a STAR connection at the input GND terminal to ensure best performance. 30 GND3 ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 14 ● Tel: 408-222-8888 ● www.supertex.com HV9985 ...
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... MAX 1.00 0.05 JEDEC Registration MO-220, Variation VJJD-6, Issue K, June 2006. * This dimension is not specified in the JEDEC drawing. † This dimension differs from the JEDEC drawing. Drawings not to scale. Supertex Doc. #: DSPD-40QFNK66X6P050, Version C041009 θ Seating A3 Plane L1 Note 2 ...
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... Drawings are not to scale. Supertex Doc. #: DSPD-44QSOPQP, Version A062309. (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to http://www.supertex.com/packaging.html.) does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives Supertex inc. an adequate “ ...