BD7902CFS ROHM Co. Ltd., BD7902CFS Datasheet
BD7902CFS
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BD7902CFS Summary of contents
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• • • Ω • • • ...
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Parameter Symbol POWER MOS SPVM1,2,SLRNF1,2 power suuply voltage Preblock/BTL powerblock V ,SLVDD,AVM CC power supply voltage PWM control block power supply voltage Power dissipation Operating temperature range Storage temperature ∗1 POWER MOS output terminals (9, ...
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LEVEL LEVEL LEVEL SHIFT SHIFT SHIFT 94k 47k − 94k + 47k − + REVERSE FG DETECT HALL BIAS ...
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Pin No. Pin name Function 1 HU+ Hall amp. U positive input 2 HU− Hall amp. U negative input 3 HV+ Hall amp. V positive input 4 HV− Hall amp. V negative input 5 HW+ Hall ...
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Three-phase motor driver output Hall signal input 54pin 54pin PWM driver output SLED1 BTL driver input FO, TK, LD ...
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Parameter Symbol Circuit current Quiescent current 1 IQ1 Quiescent current 2 IQ2 Quiescent current 3 IQ3 Stanby-on current 1 IST1 Stanby-on current 2 IST2 Sled driver block Input dead zone (one side) VDZSL Input output ...
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Parameter Symbol Loading driver block Output offset voltage VOFLD Output saturation voltage "H" VOHLD Output saturation voltage "L" VOLLD Voltage gain GVLD CTL1, CTL2 Input high voltage VIH Input low voltage VIL Others VC drop-muting VMVC V drop-muting VMV CC ...
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DV VINFC VINTK OUT-A5 OUT-A4 OUT- IQDV IQVC LEVEL LEVEL LEVEL SHIFT SHIFT SHIFT 94k 47k − 94k ...
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SLED POWER SUPPLY SW-SL SW-SL VSLRNF1 V V VSLRNF2 SLRNF2 SLRNF1 SLVM OUT SW-RL 47µ SW-IL SW- ∗A3, A4 and A5 require no coil. (47µH) OUTSP U V ...
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INPUT CTL SWITCH Designation VIN Circuit current IQ1 − IQ2 − IQ3 − − IST1 L ...
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INPUT CTL SWITCH Designation VIN Spindle driver block 〈 Hall bias 〉 VHB 1.65V 〈 Hall amplifier 〉 IHIB 1.65V ...
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INPUT CTL SWITCH Designation VIN Actuator driver block VOFFT 1.65V 3.3V VOHFT (0V) 0V VOLFT (3.3V) ...
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HU+ HU− FWD HV+ HV− HW+ HW− SPIN Vref SOURCE U Hi-Z SINK SOURCE V Hi-Z SINK SOURCE W Hi-Z SINK Forward rotation mode < < FWD REV ...
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Hall amplifier input (forward rotation) HU+ HU− HV ΙΙ ΙΙΙ < Hall ...
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SPRNF SLRNF VC Gain expression Input-output gain gm (A/V) Output-limit current Ilim (A) Gain with the added resistor gm (A/V) FWD rotation Dead zone + Dead zone − SPIN SLIN1, 2 Spindle Sled 1.0/RNF 0.5/RNF 0.47/RNF 0.47/RNF 15k/{SPRNF×(Rin+15k)} 0.5×47k/{SLRNF×(Rin+47k)} Rin ...
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TRACKING TRACKING FOCUS IN LOADING IN = =12V LEVEL LEVEL SHIFT SHIFT 94k 47k − 94k + 47k − + REVERSE FG DETECT ...
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AMBIENT TEMPERATURE : Ta (°C) ∗ On less than 25.7% (percentage occupied by copper foil), 70×70mm2, t=1.6mm glass epoxy mounting. Fig.4 Power dissipation ...
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Appendix No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product ...