BH6573FV Optical disc ICs PWM driver for CD BH6573FV BH6573FV is a 4-channel PWM driver developed for driving stepping motor, and DC motor of DSC, and also developed for driving DC motor, and actuator of CD / MD. This IC has achieved lower power consumption of the set by using power MOSFET in output. !Applications CD, MD, DSC, DVC !Features 1) Four channels of power MOS-H bridges are contained. 2) Available for PWM input. 3) Applicable for stepping-motor drive. 4) Separating VM into CH1, CH2 and CH3 / 4. 5) Low on-resistance 1.3Ω (typ.) 6) Low power consumption. 7) SSOP-B24 package. !Absolute maximum ratings (Ta=25°C) Parameter Symbol Limits Unit H-bridge power supply voltage VM 6 V Control circuit power supply voltage VDD 6 Driver output current IO 1000 Power dissipation Pd 1025 V ∗1 mA ∗2 mW Operating temperature range Topr −40~+85 °C Storage temperature range Tstg −55~+150 °C ∗1 The current is guaranteed 1.0A is case of the current is turned on/off in a duty-ratio of less than 1/10 with a maximum on-time of 5msec. ∗2 When a 70mm×70mm, 1.6mm thick glass epoxy substrate having a copper foil content of less than 3% is mounted. When the circuit if used at Ta of 25°C or more, subtract 8.2mW per degree from the rating. !Recommended operating conditions Symbol Min. Typ. Max. Unit H-bridge power supply voltage VM 1.6 5.0 5.5 V Control circuit power supply voltage VDD 2.0 3.0 5.5 V Parameter 1/8 BH6573FV Optical disc ICs !Block diagram 23 PSB2 PSB1 24 22 21 20 19 18 16 H BRIDGE (Pow MOS) H BRIDGE (Pow MOS) INTERFACE 17 15 14 13 INTERFACE PREDRIVE PREDRIVE PREDRIVE PREDRIVE H BRIDGE (Pow MOS) INTERFACE H BRIDGE (Pow MOS) INTERFACE VDD 1 2 3 4 5 6 7 8 9 10 11 12 !Pin descriptions Pin No. Pin name Pin No. Pin name 1 GND GND 13 GND GND 2 IN1R CH1 Reverse input 14 IN4R CH4 Reverse input 3 IN1F CH1 Forward input 15 IN4F CH4 Forward input 4 OUT1F CH1 Forward output 16 OUT4F CH4 Forward output 5 VM1 Power supply for CH1 power block 17 OUT4R CH4 Reverse output 6 OUT1R CH1 Reverse output 18 VM3 7 OUT2R CH2 Reverse output 19 OUT3R CH3 Reverse output 8 VM2 Power supply for CH2 power block 20 OUT3F CH3 Forward output 9 OUT2F CH2 Forward output 21 IN3F CH3 Forward input 10 IN2F CH2 Forward input 22 IN3R CH3 Reverse input 11 IN2R CH2 Reverse input 23 PSB2 CH3, 4 power save control pin 12 VDD Power supply for pre block 24 PSB1 CH1, 2 power save control pin Functions Functions Power supply for CH3, 4 power block 2/8 BH6573FV Optical disc ICs !Input output circuits VM1 VDD 5 12 OUT1F 32.2k 4 2, 3, 10, 11, 14, 15, 21, 22 6 OUT1R GND 1, 13 1, 13 GND VM2 VDD 8 12 OUT2F 40k 9 23, 24 7 OUT2R GND 1, 13 1, 13 GND VM3 VM3 18 OUT4F OUT3F 16 18 17 OUT3R 20 19 OUT4R 1, 13 GND 1, 13 GND 3/8 BH6573FV Optical disc ICs !Electrical characteristics (unless otherwise noted, Ta=25°C, VM=5V, VDD=3V, fIN=176kHz, RL=8Ω-47uH) Parameter Symbol Min. Typ. Max. Unit − 200 350 µA Conditions Measuring circuit <H-bridge power supply voltage> Upon no signal IMST Fig.1 <Control circuit power supply voltage> Upon no signal IDD1 − 0 1 µA Upon operation IDD2 − 6 70 µA "H" level input voltage VIH VDD −0.4 − − V Fig.1 "L" level input voltage VIL − − 0.3 V Fig.1 "H" level input current IIH − − 1 µA Fig.1 "L" level input current IIL −1 − − µA Fig.1 Output in-resistance 1 RON − 1.3 2.0 Ω Output in-resistance 2 RON − 1.8 2.6 Ω tRISE − 0.2 1 usec tFALL − 0.2 1 usec tMIN 220 − − nsec Fig.1 Drivimg 4channels Fig.1 <Logic input character> Propagation delay time Minimum input pulse width Fig.1 Sum of on-resistance of top and that of bottom (VM=5V, VDD=3V) Fig.1 Sum of on-resistance of top and that of bottom (VM=2.5V, VDD=3V) Fig.1 Fig.1 Output pulse more than 1/2tMIN Fig.1 This product is not designed for protection against radioactive rays. 4/8 BH6573FV Optical disc ICs !Measuring circuit H H L H L L H A L A IIN3R 23 22 PSB2 PSB1 24 8Ω 47µH 8Ω 47µH VO3 VO4 V V H L L A IIN3F 21 H A IIN4F 20 19 18 16 H BRIDGE (Pow MOS) H BRIDGE (Pow MOS) INTERFACE 17 IIN4R 15 14 13 INTERFACE PREDRIVE PREDRIVE PREDRIVE PREDRIVE H BRIDGE (Pow MOS) INTERFACE H BRIDGE (Pow MOS) INTERFACE VDD 1 2 3 A 4 5 A IIN1R IIN1F L H 7 8 9 V V VO2 VO1 8Ω H 6 8Ω 47µH 10 11 A 12 A IIN2R IIN2F A IDD 47µH L H L H L VDD A IMST VM Fig.1 !Circuit operation Truth table PSB1∗ IN1∼4R OUT1∼4F OUT1∼4R L L Hi-Z Hi-Z H L H L H H H L H L H H H H L L L L X X Hi-Z Hi-Z PSB2∗ H H H H IN1∼4F ∗ PSB mode PSB1 PSB2 OUT1, 2 OUT3, 4 H H Output is followed by truth table Output is followed by truth table H L Output is followed by truth table Hi-Z L H Hi-Z Output is followed by truth table L L Hi-Z Hi-Z 5/8 BH6573FV Optical disc ICs µ-COM TRACKING FOCUS 3V 23 PSB2 PSB1 24 22 21 20 19 18 H BRIDGE (Pow MOS) INTERFACE 17 16 H BRIDGE (Pow MOS) 15 14 5V 13 INTERFACE PREDRIVE PREDRIVE PREDRIVE PREDRIVE H BRIDGE (Pow MOS) INTERFACE H BRIDGE (Pow MOS) INTERFACE VDD 4 5 6 7 8 9 M M SLED SPINDLE 10 11 12 SPINDLE 3 SLED 2 TRACKING 1 FOCUS PSB !Application example DSP Fig.2 6/8 BH6573FV µ-COM STEPPING MOTER 3V 23 PSB2 PSB1 24 22 21 20 19 18 H BRIDGE (Pow MOS) INTERFACE 17 16 H BRIDGE (Pow MOS) 15 14 5V 13 INTERFACE PREDRIVE PREDRIVE PREDRIVE PREDRIVE H BRIDGE (Pow MOS) INTERFACE H BRIDGE (Pow MOS) INTERFACE VDD 1 2 3 4 5 6 7 8 9 10 11 12 IN2 IN1 IN4 STEPPING MOTER IN3 PSB Optical disc ICs DSP Fig.3 7/8 BH6573FV Optical disc ICs !Operation notes 1. Connect a bypass capacitor (0.1µF) across the supply voltage lines close to the IC pins. 2. Avoid short circuit between each driver output (4, 6, 7, 9, 16, 17, 19, 20pin) and power supply (5, 8, 12, 18pin), or GND (1, 13pin). And avoid short circuit between output terminals (4-6, 7-9, 16-17, 19-20). !External dimensions (Units : mm) 7.8±0.2 13 0.3Min. 7.6±0.3 5.6±0.2 24 1.15±0.1 0.1 1 0.65 12 0.15±0.1 0.1 0.22±0.1 SSOP-B24 8/8 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