STK66083P

Ordering number : EN4939 Thick Film Hybrid IC STK66083P Non-Chopping Current Drive Print Head Driver Applications Printers that require head drivers Various relay drive applications Features A total of 116 devices, including drive power transistors and flyback voltage take-up diodes, are incorporated into a single package to reduce the total printed circuit board mounting area. A constant-current drive scheme can be implemented by setting the individual phase head current rise times to arbitrary values. Furthermore, the STK66083P’s ability to handle a high supply voltage (VCC1 = 36 V) allows the current rise times to be shortened. The built-in input pull-up resistors allow the STK66083P to be driven by open collector type TTLICs in the previous stage. Also, the provision of a base drive pin allows the STK66083P to support an enable function. Since the D1 to D12 flywheels for each phase are connected to the power supply, the flyback energy due to the winding inductance (L) can be returned to the power supply. This allows the power dissipation in the power supply and other circuits to be reduced. Specifications Maximum Ratings at Ta = 25°C Package Dimensions unit: mm 4094 [STK66083P] Parameter Maximum supply voltage 1 Maximum supply voltage 2 Phase output current 1 Phase output current 2 Operating substrate temperature Junction temperature Storage temperature Transistor withstand voltages Symbol Conditions VCC max1 VCC max2 Iop1 max No signal One pulse: 1 ms...