BD6641KUT ROHM Co. Ltd., BD6641KUT Datasheet
BD6641KUT
Related parts for BD6641KUT
BD6641KUT Summary of contents
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... Recording and playback MD ●Product lineup Parameter VCC operating power supply voltage range VM operating power supply voltage range Operating temperature range Output current Rotation speed Package Spindle/brake input BD6641KUT 2.1～6.5V 0～3V -25～+75℃ 500mA ～5000rpm（typ.） TQFP64U H: Brake ON BD6643KN 2.1～6.5V 0～3V -25～ ...
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... Circuit current STBY H level input voltage STBY L level input voltage STBY H level input current STBY L level input current Output ON resistance ～Boost circuit～ Output voltage Symbol VCC VM VG Iomax **1375（BD6641KUT） Pd ***760（BD6643KN） Topr Tstg Tjmax Symbol Min. Typ. VCC 2.1 2.2 VM － ...
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... V V 650 mV ISET=50kΩ 200 kHz V 0 µA PWM=VCC - µA PWM=0V Brake ON（BD6641KUT） V Brake OFF（BD6643KN） Brake OFF（BD6641KUT） 0.4 V Brake ON（BD6643KN） 1 µA BRAKE=VCC - µA BRAKE=0V V Io=-500µA 0.4 V Io=500µ µA VIN=VCC - µA VIN=0V 1 µ ...
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Operating range (2 6 VCC [V] Fig. 1 Circuit current (at operation in all blocks) 1.2 ...
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... PWM Switching Predriver SPVM SPUOUT SPVOUT SPWOUT SPPG Triangle Wave OSC SGND GND 200pF±10% ※1 The BD6641KUT and BD6643KN are common to the block diagram. Refer to P.11/16 ※2 The BD6643KN does not have MSK pin. Refer to P.11/16 7.5k Ω 10～ 30k Ω F µ Refer to ...
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... Pin arrangement diagram (BD6641KUT NO. Pin name 1 S2 Stepping decoder 2 input pin 2 S3 Stepping decoder 3 input pin 3 VG Charge pump output pin 4 N.C 5 H2VM H-bridge 2 power block power supply pin 6 N.C 7 C2M Charge pump capacitor 2 connection pin − ...
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Pin arrangement diagram (BD6643KN ◎Pin function table NO. Pin name 1 S2 Stepping decoder 2 input pin 2 S3 Stepping decoder 3 input pin 3 VG Charge pump output pin 4 H2VM H-bridge ...
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... Control the motor’s rotation speed external PWM signal input. The brake (deceleration) ON/OFF can be switched by external BRK signal input. ・Mask Set (BD6641KUT/spindle) The FG maximum frequency can be set to 700Hz/1090Hz/1515Hz by setting the MSK pin to OPEN/GND/VCC. (The setting maximum frequency may not be reached for some motors.) ・ ...
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Description of basic spindle driver operation 1) Startup from the stop condition of the motor Generally, the appropriate motor driving logic is unclear because no BEMF voltage is generated in the stopping motor coil. For the BD6641KVT/BD6643KN, appropriate ...
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... OSC FG BRK ※Fig. 15 shows the waveforms for the BD6643KN. In BD6641KUT, only BRK signal is reversing signal output FG signal is set by zero cross signal EX-OR composition. It has the width of electrical angle 60°. There is an edge in zero cross timing which can be used in servo systems as a rotation speed signal of the motor. When the motor is off and frequency that is in proportion to the rotation speed and is always output during braking ...
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... RLV2 and GND pins from 10kΩ to 30kΩ to startup well. Some motors may rotate in the reverse direction at startup. The optimum capacitance is 0.1µF. BD6641KUT: Brake ON at BRK pin voltage>VCC–0.4V. BD6643KN: Brake ON at BRK pin voltage<0.4V. 11/16 ...
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... I/O circuit diagram (Standard resistance value Pin No. for BD6641KUT Pin No. for BD6643KN ( 1 ) Logic input S1 [48] VCC S2 [1] S3 [2] IN1F [14] IN1R [15] IN2F [46] IN2R [47] PWM [23] BRK(－) [25] GND Fig Charge pump C1P ...
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... GND Fig Sled output SLVM [32] SLPG [40 Sled BEMF detection comparator VCC SLCOM [38] GND ( 10 ) Spindle MSK pin BD6641KUT VCC 18.5K MSK GND [27 Spindle OSC pin VCC ISET [29] GND ( 14 ) Spindle rotor position detection level setting pin VCC 5K ...
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Absolute maximum ratings An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down the devices, thus making impossible to identify breaking mode, such as a ...
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... Reduced by 11mW/°C (BD6641KUT) and by 7.6mW/°C (BD6643KN) over Ta=25°C, when mounted on a glass epoxy board (70mm×70mm×1.6mm). + isolation and P substrate layers between adjacent elements to keep them isolated. P–N junctions are Pin B C Pin A ...
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Selecting a Model Name When Ordering ROHM model Part number 6641 = QFP package 6643 = QFN package TQFP64U <Dimension> 9.0 ± 0.3 7.0 ± 0 0.125 ...
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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 ...