HV9105 Supertex Inc, HV9105 Datasheet
HV9105
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HV9105 Summary of contents
Page 1
... CCITT I.430 performance recommenda- tions (60% efficiency at .025W out). The HV9105/08 provides all the functions necessary to build a single-switch current-mode converter of any common topology, with a minimum of external parts. In addition to high efficiency, because it uses Supertex’s propri- ...
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... HV9105 49.0 49.4 HV9108 99.0 99.4 HV9108 100 110 3.96 4.00 25 nulled at trim 60 80 0.5 0.8 See Fig See Fig. 1 1.0 1.2 150 7.8 8.6 7.0 8.1 2 HV9105/HV9108 = 25°C, unless otherwise specified) A Max Unit Conditions 4. 10MΩ KΩ µA 130 REF IN mV/°C MHz R = 0Ω OSC 48 KHz 15 % 9.5V < V < 13.5V DD ppm/° ...
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... Off, Latched L → Off, Latched, No Change (Continued 820KΩ 910KΩ,T IN BIAS OSC Min Typ 0.35 7.5 9 7.0 1.0 -25 200 240 3.5 35 Output 3 HV9105/HV9108 = 25°C, unless otherwise specified) A Max Unit Conditions 0 Shutdown = -V IN µA 13.5 V 100 SOURCE 2 µA 5.0 V ...
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... Comparator + 8.1V – + 8.6V Pin numbers in parentheses are for PLCC package 50 90% Drain 50% 50 9108 9105 Drain ( Source V ( (16) 11 Shutdown S Q Reset R (17) 12 HV9105/HV9108 ≤ 10ns F ≤ 10ns F ...
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... Frequency Output Switching Frequency vs. Oscillator Resistance 1M HV9108 HV9105 100k 10k 100 k 10k R (Ω) OSC PSRR 0.1V swept 10Hz – 1MHz 100K1% 100K1% 10.0V – 4.00V + Reference V 0.1µF HV9105/HV9108 240° 180° 120° 60° 0° -60° -120° -180° 1MHz ...
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... FET shuts off. Bias Circuit An external bias resistor, connected between the bias pin and V is required by the HV9105/08 to set currents in a series of current mirrors used by the analog sections of the chip. Nominal external bias current requirement is 7.5µA, which can be set by a 820KΩ ...
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... REF BIAS Discharge 9 +V OSC • 20-pin PJ Package top view 1235 Bordeaux Drive, Sunnyvale, CA 94089 TEL: (408) 744-0100 • FAX: (408) 222-4895 www.supertex.com HV9105/HV9108 NC 13 Discharge 12 OSC In 11 OSC Out 11/12/01 ...