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STK681-332-E Datasheet(PDF) 6 Page - Sanyo Semicon Device |
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STK681-332-E Datasheet(HTML) 6 Page - Sanyo Semicon Device |
6 / 14 page STK681-332-E No. A1591-6/14 Sample Application Circuit Motor Drive Conditions (H: High-level input; L: Low-Level Input) IN1 IN2 ENABLE Remarks H L L L H L Stop H H L Turns the power supply OFF. ENABLE must be set Low when VDD is rising or falling. Forward (CW) H L H Reverse (CCW) L H H No input signal is needed that turns off the upper- and lower-side drive devices when switching the rotational direction. L L L or H GND side MOSFET ON Brake H H H VCC side MOSFET ON * Output control is enabled by applying an external PWM signal to the ENABLE pin. The product can run at a minimum external PWM pulse width of 1 μs. In the case when the high pulse width is less than 16 μs, however, the IC may fail to detect a short-circuit condition when an output short-circuit occurs. If VDD is turned off in the condition with the ENABLE pin set to high during motor rotation or PWM operation, the FAULT signal is output when VDD is falling, indicating error condition. For this reason, ENABLE must be set to low when VDD is rising or falling. When both IN1 and IN2 are set low, the MOSFET on the VCC side is driven. To minimize the loss when stopped, set IN1 = IN2 = High and ENABLE = Low to turn off the gate signal to the VCC side MOSFETs. Setting the current limit using the Vref pin Output current peak (Iop) = (Vref ÷ 4.9) ÷ Rs “4.9” in the above formula indicates the portion of the Vref voltage that is divided using the circuit inside the control IC. Vref = (R2 ÷ (R1+R2)) × 3.3V Rs is the external current detection resistance value of the HIC, and Vref ≤ 2.0V must be satisfied so that overcurrent detection is not triggered. 15 16 17 18 13 19 9 7 8 12 6 4 10 3 2 14 VDD (5V) IN1 IN2 ENABLE (DC or PWM) Vref S.GND GND N.C Motor VCC=24V OUT1 OUT2 C1 47 μF to /50V 10 μF/50V C2 STK681-332-E CCW CW 11 5 N.C 1 FAULT Rs R1 R2 C3 0.1 μF N.C |
Similar Part No. - STK681-332-E_11 |
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Similar Description - STK681-332-E_11 |
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