HV461 Supertex, Inc., HV461 Datasheet
HV461
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HV461 Summary of contents
Page 1
... DC source, or both. The HV461 also has an internal boost converter that can be used to provide the gate drive voltages for the two MOSFETS on the primary side and the two secondary rectifi ...
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... AAA *May be part of top marking 48-Lead LQFP (FG) Conditions V --- f = 100kHz PWM 19.6608MHz SW outputs NC osc Open loop confi g, External V Conditions V --- 2.97 - 3.63V, SW outputs unloaded 2.50 - 2.93V, SW outputs unloaded -10µA OUT 10µA OUT 200pF 200pF L --- % --- HV461 GD ...
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... Min Typ Max Units 2.75 2.85 2.95 2. 0.10 - same as V regulation point HV461 Conditions 25ºC a --- I = ±100µA out 25ºC A --- 100µA source out Conditions V --- V --- 5.0V IN --- --- --- Conditions V --- V --- ...
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... 0 14.4 16.0 17.6 72.0 80.0 88.0 4 HV461 Conditions 1mA OUT %* C = 10µF FAULT %* C = 10µF FAULT 10µF FAULT Conditions V --- 0. -0 --- ±100uA OUT I = ±100uA OUT dB --- dB --- --- --- dB f<10kHz Conditions V --- AMP ≠ 00 P-P AMP = 00 ...
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... ring 1 cycle 4.5 5.0 5.5 -250 0 +250 - - 300 - - 300 5 HV461 Conditions Hz loop fi lter = (33µF+10kΩ)||4.7µF Hz loop fi lter = (33µF+10kΩ)||4.7µF V --- V --- loop fi lter = (33µF+10kΩ)||4.7µF Conditions 1.250V IN(DC) V/V AMP = 00 V/V AMP = 01 V/V AMP = 10 V/V AMP = 11 V --- ...
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... HV461 Conditions R = 500kΩ PWM R = 83kΩ PWM ns --- ns --- --- 1.0mA sink OUT --- 20mA sink OUT 20mA source OUT 4nF 4nF L PWM = 0.625V ...
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... Siezed ErrAmp OFF SW1 XX Off XX Off XX Switching Switching Off Off On On Off Off On t DLY t ON SYNC(ON) Free 7 SW2 SW3 Off Off Off Switching Switching Switching Switching OFF Decay time dependent on value of cap connected to SINEREF. Siezed HV461 SW4 Off ...
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... REN ring generator application. The basic design t ON(delay) SYNC(ON) Free AMP 00 AMP 00 t SYNC(delay) amplitude changes SYNC(ON) sync'd to zero crossings equations for elements connected to different pins are given in the Pin Descriptions Table beginning on page 11. 8 HV461 SYNC(OFF) sync at 0º or 180º Siezed AMP 00 ...
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... Figure 5: Block Diagram and Typical Applicatin Circuit 9 HV461 ...
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... Figure 6: Typical Power Stage for 15 REN Ring Generator 10 HV461 ...
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... PWMSYNC The external source should be open drain. If the PWMSYNC pins of multiple HV461s are tied together, their PWM frequencies will be phase- locked to the HV461 with the highest free-running frequency. A maximum of 10 HV461s may be tied together. If unused, this pin should be left unconnected. A capacitor from this pin to ground sets the integration time of the FAULT detection circuitry. A larger capacitor provides less suseptability to ...
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... DC offset in conjunction with AMPx and OFFx. Gain = R /R FB2 FB1 nominal. Output impedance is approximately 16kΩ. An external 33nF capacitor from this pin to P-P =0. 0.4V MIN DCL MAX DCL 12 HV461 011 = 30Hz 111 = 60Hz ( and see schematic) FB3 FB1 FB4 FB2 15 · f RING ...
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... JEDEC Registration MS-026, Variation BBC, Issue D, Jan. 2001. Drawings not to scale. (The package drawing(s) in this data sheet may not refl ect the most current specifi cations. For the latest package outline information go to http://www.supertex.com/packaging.html.) Doc.# DSFP - HV461 B111607 D D1 ...