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TB6598FN Datasheet(PDF) 2 Page - Toshiba Semiconductor |
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TB6598FN Datasheet(HTML) 2 Page - Toshiba Semiconductor |
2 / 17 page TB6598FN/FNG 2005-01-19 2 Block Diagram Some functional blocks, circuits, or constants may be omitted or simplified in the block diagram for explanatory purposes. Pin Functions Pin Name Pin No. Functional Description Remarks AO2 1 Output 2 (Ch. A) Ch. A motor winding connection pin RFA 2 Winding current detection pin (Ch. A) AO1 3 Output 1 (Ch. A) Ch. A motor winding connection pin Vref 4 Internal reference voltage +0.6 V (typ.) GND 5 Ground pin VCC 6 Small-signal power supply pin VCC (ope) = 2.7 V to 5.5 V Vlim 7 Winding current setting pin Icoil (A) = Vlimit (V)/external RF (Ω) EN1 8 Enable input 1 EN2 9 Enable input 2 IN1 10 Control input 1 IN2 11 Control input 2 OSC 12 Internal oscillation frequency setting pin Connect an oscillator capacitor externally VM 13 Motor power supply pin VM (ope) = 4.5 V to 13.5 V BO2 14 Output 2 (Ch. B) Ch. B motor winding connection pin RFB 15 Winding current detection pin (Ch. B) BO1 16 Output 1 (Ch. B) Ch. B motor winding connection pin VM AO1 AO2 RFA BO1 BO2 RFB EN1 8 9 10 11 EN2 IN1 IN2 Control Logic 12 OSC OSC 7 Vlim Timing Logic 5 6 GND VCC Pre-Drive H-Bridge B 13 3 1 2 Timing Logic Pre-Drive H-Bridge B TSD 16 14 15 4 Vref Vref 0.6 V Band Gap |
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