HV9112 Supertex, Inc., HV9112 Datasheet
HV9112
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HV9112 Summary of contents
Page 1
... It provides all the functions necessary to implement a single-switch current mode PWM, in any topology, with a minimum of external parts. Because the HV9112 utilizes Supertex’s proprietary BiCMOS/ DMOS technology, it requires less than one tenth of the operating power of conventional bipolar PWM ICs, and can operate at more than twice their switching frequency ...
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... OSC KHz 200 240 R = 150KΩ OSC - 0.1V SYNC 170 - ppm/° -55°C to 125°C A 49.6 % --- - - ns --- - 0 % --- 80 125 ns --- 1.2 1 1.5V, 80 120 ns SENSE V ≤ 2.0V COMP 4. shorted to comp FB 25 500 4. --- --- 1.3 - MHz --- Ω --- - 3. 4. --- HV9112 IN ...
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... --- - - ns Shutdown and reset low - 2.0 V --- - - V --- 5.0 μ -35 μ 10mA, OUT - 0 -10mA OUT 25 Ω ±10mA OUT 20 Ω 30 Ω ±10mA, OUT T = -55°C to 125°C 30 Ω 500pF 500pF L HV9112 > 9. SENSE IN ...
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... Current Limit – Comparator To 1.2V Internal Circuits Undervoltage – Comparator + 8.1V 8. Shutdown 50 90% Output 0 50% 50 VDD ( (8) -VIN 3 (5) Current Sense VDD 11 (16) Shutdown S Q Reset R 12 (17) HV9112 ≤ 10ns t F ≤ 10ns Output ...
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... Open Loop Gain/Phase -10 100 1K 10K 100K 1M Frequency (Hz) R vs. t (9113 only) DISCHARGE OFF 100K OSC 10K OSC OSC (Ω) DISCHARGE HV9112 1M 180 120 60 0 -60 -120 -180 ...
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... Bias Circuit An external bias resistor, connected between the BIAS pin and VSS is required by the HV9112 to set currents in a se- ries of current mirrors used by the analog sections of the chip. The nominal external bias current requirement with 20µA, which can be set by a 390KΩ to 510KΩ resistor if a ...
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... Error Amplifi er The error amplifi the HV9112 is a true low-power dif- ferential input operational amplifi er intended for around the amplifi er compensation mixed CMOS-bipolar con- struction: A PMOS input stage is used so the common mode range includes ground and the input impedance is very high ...
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... JEDEC Registration MS-012, Variation AB, Issue E, Sept. 2005. Drawinngs 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-HV9112 A101007 Seating ...