00W149A Power driver for portable CD BH6541KV Description Dimension (Units : mm) BH6541KV is a 3chPWM driver + 1ch sensorless spindle driver developed for driving motor and actuator of portable CD,MD. Lower power consumption can be achieved in the set by applying the power MOSFET. In addition, the size reduction in the set can be accomplished by using the VQFP48 package. 9.0±0.3 7.0±0.2 24 48 13 1.425±0.1 0.1±0.1 1 Features <PWM driver: 3ch> 1) Digital input, Direct PWM driving system <Spindle driver> 1) 3-phase full-wave sensorless driving system 2) Built-in start and brake function 3) Built-in half-bridge driver for power supply 25 0.5 12 0.2±0.1 0.4 9.0±0.3 7.0±0.2 36 37 0.15±0.1 0.1 VQFP48 Applications Portable CD, MD Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Limits Unit Control circuit supply voltage Vcc 7 V PVCC VG (19pin) 7 9 Pd 1.12 * Operating temperature range Topr Storage temperature range Tstg –30 ~ +85 –55 ~ +150 Power block supply voltage Pre-driver supply voltage Power dissipation V V W ˚C ˚C *Derating : 9.0mW/˚C for operation above Ta=25˚C On less than 3% (percentage occupied by copper foil),70mmx70mm, t=1.6mm, glass epoxy mounting. Recommended Operating Conditions (Ta=25˚C) Parameter Symbol Min. Typ. Max. Unit Control circuit supply voltage VCC 2.2 2.4 4.5 V PVCC 0.8 1.5 4.5 V VG (19pin) — 7.2 8.5 V Power block supply voltage Pre-driver supply voltage February, 2001 Electrical characteristics (Unless otherwise noted; Ta=25˚C, Vcc=2.4V, PVCC=2.4V, RL=8Ω+47µH(H bridge), RL=2Ω+47µH(spindle) Parameter Symbol Min. Typ. Max. Unit Current at no signal (VCC) ICC2 – 2 4 mA All channels no input Current at operating ICC2 – 5 9 mA All channels operating HBRON – 1.5 2.5 Ω Sum of ON resistance (upper+lower) SPRON – 1 2 Ω Sum of ON resistance (upper+lower) VCD 0 – Vcc–1.0V V CST charging current ICTSO –4.1 –2.5 –0.9 µA CSL discharging current ICTSI 1.4 3.5 5.7 mA CST charging current CSL discharging current ICLSO ICLSI –7.8 3.5 –5 7.5 –2.4 11.6 µA µA VG 6 7.2 8 V IBRON – 0.6 1.2 Ω VMON1 1.1 1.2 1.3 V Conditions <H bridge driver (ch1,2,3)> Output ON resistance <Spindle driver> Output ON resistance Detection comparator input <Charge-pump> Output voltage at no input <Half-bridge driver> Output ON resistance Sum of ON resistance (upper+lower) <PVCC/2 monitor pin> Monitor pin voltage1 Application Circuit FOCUS TRACKING 0.1µF COIL COIL 0.1µF 36 30 SLED MOTOR M 35 34 ch1 33 32 31 29 28 27 ch2 26 25 ch3 37 CLK 38 FE(F) 39 FE(R) 40 TE(F) 41 TE(R) 42 SL(F) 43 SL(R) 44 FG 45 HBIN 46 BRK AD_PVCC DSP 24 H-Bridge H-Bridge Pre Driver Pre Driver H-Bridge Charge Pump Oscilator Pre Driver Slope Signal Phase Control VG µ–COM MUTE 23 22 21 20 0.033µF 0.033µF 0.1µF 19 TSD 18 17 Logic 0.22µF 16 2200pF 15 2200pF 47 14 2200pF 48 PVCC/2 Monitor 13 Pre Driver Pre Driver 1 2 3 4 5 6 7 8 9 10 11 12 15kΩ Appendix Notes 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 described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.0