Three-phase motor pre-driver for LBP BA6680FS Description BA6680FS is a three-phase motor pre-driver. PWM driving system is adopted in this IC as well as incorporation of a booster to drive N-channel (upper and lower) MOS FET. Current limit, FG amplifier, FG hysteresis amplifier and charge-pump are incorporated as other functions. Dimension (Unit : mm) 0.11 17 1 16 0.3Min. 1.8 ± 0.1 7.8 ± 0.3 5.4 ± 0.2 13.6 ± 0.2 32 0.8 0.36 ± 0.1 Features SSOP-A32 1)Three-phase motor pre-driver 2)Upper and lower N-channel MOS FET driving 3)PWM driving 4)Built-in charge-pump circuit 5)Built-in FG amplifier and hysteresis amplifier 6)Built-in current limit circuit Applications Paper feed motor for LBP, Motor for OA appliances Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Limits Power supply voltage Vcc Power dissipation Pd 36 950 Operating temperature range Topr -10 Storage temperature range Tstg ∗Derating : 7.6mW/˚C for operation above Ta=25˚C -40 Parameter Symbol Min. VCC 16 V mW ∗ ~ +75 ~ +150 Recommended Operating Conditions (Ta=25˚C) Power supply voltage Unit Typ. - ˚C ˚C Max. Unit 28 V 0.15 ± 0.1 0.1 Electrical characteristics (Unless otherwise noted; Ta=25˚C, Vcc=25.5V) Parameter Circuit current VREG voltage Symbol Min. Typ. Max. Unit ICC VREG 11.7 5.4 15.7 5.9 19.7 6.4 mA V IHA -3.0 -0.7 - µA VHAR 1.0 - 4.9 V Boost voltage VG VCC+6 VCC+7 VCC+8 V Upper gate High voltage VHG VCC+6 VCC+7 VCC+8 Lower gate High voltage VLG 9.5 10.5 11.5 V V Current detection voltage VCL 0.342 0.380 0.413 V GVFG 45 54 - dB Hall input bias current Hall common-mode input voltage range FG amplifier open loop gain Conditions IVREG=-1mA f=3kHz Application Circuit Hw C102 Hv Hu R110 C103 CP1 OSC 10 24 FG C110 R108 C108 R107 C109 23 22 21 CP2 12 11 Vb 20 19 18 Hw- Hw+ Hv- Hu- 17 16 Hv+ Hu+ 15 Vcc 9 BA6680FS Regurater 6V/10.5V R101 Q101 14 VREG R102 OSC UHG FG sout TSD FG out Hall AMP ULG FGin- VHG FGin+ VLG 3 4 RDS035L03 5 6 RDS035L03 Pre C111 13 WHG Charge Pump 26 25 ACC DEC WLG PWM CPout CNF 27 28 29 30 31 32 RCP Pref Rfe Cfe C107 R109 R106 C106 R105 2 CL R104 C112 C104 C105 GND 7 8 RDS035L03 1 R103 RDS035L03 M 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