stk681-320 ON Semiconductor, stk681-320 Datasheet
stk681-320
Available stocks
Related parts for stk681-320
stk681-320 Summary of contents
Page 1
... Ordering number : ENA0762A STK681-320 Overview The STK681-320 is a hybrid IC for use in current control forward/reverse DC motor driver with brush. Applications • Office photocopiers, printers, etc. Features • Allows forward, reverse, and brake operations in accordance with the external input signal. • 5.2A startup output current and 8A peak brake output current. ...
Page 2
... Note: A fixed-voltage power supply must be used. Package Dimensions unit:mm (typ) 29.2 25.6 (20.47) 1 1.0 (5.6) 18 1.0=18.0 (20.4) STK681-320 Conditions With signals applied With signals applied V CC 2=5.0V, DC current, Tc≤70° 2=5.0V, DC current, Tc=90° 2=5.0V, DC current, Tc=105° 2=5.0V, square wave current, operating time 3.6ms, Tc=105°C Conditions Forward or reverse operation If= =23Ω ...
Page 3
... Derating Curve of Motor Current vs. STK681-320 Operating Board Temperature, Tc The range of DC operating current lies within the above derating curve in the allowable operating range. The above motor current valid within the chopping operating range of DC operating. The above operating substrate temperature, Tc, is measured immediately when the motor is started. ...
Page 4
... C2 10μF/50V Vref1a Vref1b RSO RSI STK681-320 OUT1 OUT2 82kΩ Current control Overheating current control 5.1kΩ STK681-320 OUT1 14 8 OUT2 6 Vref2 S.P NC ...
Page 5
... This IC is not designed for use in an H-bridge driver for power supplies because the I/O response time of its GND side driving device, required when switching the motor rotational direction, is several scores of microseconds. It should be used only for DC motor drivers. STK681-320 IN1 IN2 INH ...
Page 6
... This pin is used to monitor the voltage across the current sensing resistor, Rs. Must be connected to the RSI pin. RSI 19 This pin is connected to the RSO pin and serves as an input to the circuit that compares the input with Vref1. STK681-320 Forward Reverse Brake rotation rotation ...
Page 7
... Substrate temperature rise , ΔTc (no heat sink) - Internal average power dissipation, PdAV (2) Internal average power dissipation, Pd, in the DC current-motor current characteristics (typ values for Pd) (3) Overheating current control characteristics Overheating current control functions to prevent driver failure if a motor lock malfunction occurs. STK681-320 ΔTc - PdAV 80 70 ...
Page 8
... Derating curve of the package power dissipation, PdPK, against the ambient temperature, Ta The package power dissipation, PdPK, refers to the internal average power dissipation, Pd, permissible if used without a heat sink Vdf - If 1.4 1.2 1.0 0.8 0.6 0.4 0 Vsat1 - 1.2 1.0 0.8 0.6 0.4 0.2 0 2.5 3.0 3.5 4 STK681-320 PdPK - Ta 3.5 3.0 2.5 2.0 1.5 1.0 0 Ambient temperature °C 1.0 Tc=25° 1=24V, 0 2=5.0V, Tc=25°C 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 ...
Page 9
... F3 A.S.O 100 STK681-320 250 V CC 1=24V 1=24V 2=5.0V 2=5.0V, Tc=25°C Tc=25°C, 200 OUT1-OUT2, Pin load=1kΩ, 12pin=High 150 100 0.5 ITF02516 100 Tc=25° Tj=150°C, ...
Page 10
... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of June, 2011. Specifications and information herein are subject to change without notice. STK681-320 INH ...