One chip driver for slim CD-ROM/RW, DVD-ROM BH6546KV Dimension (Units : mm) BH6546KV is a 4-channel PWM driver that drives spindle/slide motor, and focus/track actuator coil of optical disc. In high speed and 180˚ PWM driving slim disc, the spindle driver can achieve low vibration/low noise. Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Limits Unit Power MOS supply voltage Control circuit supply voltage Maximum output current Power dissipation Operating temperature range Storage temperature range PVcc Vcc IoMAX Pd Topr Tstg 6 6 3 ∗1 1.18 ∗2 –30 ~ +85 –55 ~ +150 V V A W ˚C ˚C On less than 3% (percentage occupied by copper foil), 70mmx70mm, t=1.6mm, glass epoxy mounting. Recommended Operating Conditions Parameter Symbol PVcc Vcc Ta Limits 3.0 4.0 –10 ~ 5.5 ~ 5.5 ~ +70 0.1 ± 0.05 0.75 1.4 ± 0.05 1.6Max. CD-ROM, CD-RW, DVD-ROM Power MOS supply voltage Control circuit supply voltage Ambient temperature 13 12 0.5 ± 0.1 +0.05 0.22 -0.04 +0.05 0.145 -0.03 4˚ +6˚ -4˚ 0.08 S 0.08 M VQFP48C Applications ∗1 Intermittent current at maximum applied time of 5msec, 1/10 duty (Max.) ∗2 Derating : 9.5mW/˚C for operation above Ta=25˚C 24 48 1 1) Low vibration/low noise by 180˚ PWM driving 2) Charge-pump circuit is not necessary for output due to complement power MOSFET. 3) Low power consumption due to low ON resistance Spindle driver output: 0.5Ω (Typ.) Slide/Focus/Tracking driver output: 1.2Ω (Typ.) 4) 1 phase/3 phase FG output can be switched by FG switching pin. 5) VQFP48C contributes to make the set smaller and thinner. 25 0.5 ± 0.15 Features 7.0 ± 0.1 9.0 ± 0.2 36 37 Unit V V ˚C 1.0 ± 0.2 9.0 ± 0.2 7.0 ± 0.1 0.75 Description Electrical characteristics (Unless otherwise noted; Ta=25˚C, Vcc=5V, PVcc=5V, Vref=1.65V, RL(act,SL)=8Ω+47µH, RL(SP)=2Ω+47µH, RNF=0.33Ω) Parameter Symbol Min. Typ. Max. Unit Current at stand-by mode Current at no signal PWM driver Input dead zone (One side) (CH1,2) Input dead zone (One side) (CH3) Output offset voltage Voltage gain Oscillation frequency Output ON resistance (Top+Bottom) Three phase motor driver Hall input level Input dead zone (One side) I/O gain Oscillation frequency Output ON resistance (Top+Bottom) Output limit voltage Others Vref descent mute Vcc descent mute IST ICC — — — 5 0.1 10 mA mA Conditions VDZ1,2 VDZ3 VOO GVC f3CH RON 0 0 –50 12 240 — 10 20 — 14 300 1.2 30 50 50 16 360 2.1 mV mV mV dB kHz Ω VHI VDZSP gm fSP RONSP VLIMSP 200 2 0.35 65 — 0.16 — 30 0.50 85 0.5 0.20 — 100 0.65 105 1.0 0.24 mVpp mV Arms/V kHz Ω V VMVref VMVcc — 3.2 0.7 3.6 1.0 4.0 V V Io=500mA SPRNF=0.33Ω Io=500mA RNF=0.33Ω Application Circuit TRACKING 36 33 31 M 30 29 28 27 26 25 Pre Driver 24 FGSW 37 Pre Driver STAND BY 23 0.01µF 38 0.01µF 39 0.01µF 40 21 41 20 NFamp Logic NFamp OSC FG OUT 43 44 OSC 45 180deg MATRIX 46 47 48 LIMIT X5 FG 3phase 18 REVERSE PROTECT 17 30deg SHIFT 16 15 8 9 14 H.B. SPINDLE IN 19 Pre Driver TRACKING IN 100K 1 Vcc 2 3 4 5 6 7 0.1µF SPRNF 0.33Ω 22 Logic T.S.D. Pre Driver FOCUS IN NFamp 0.01µF 0.1µF 42 SLED IN Logic Pre Driver Vref IN DSP 32 Pre Driver COM 34 SLED FOCUS CHANGE FG STBY µ- 35 0.1µF SPINDLE 10 11 12 13 HALL3 HALL2 HALL1 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