Overview
The STK681-360-E is a hybrid IC designed by onsemi for use in PWM current control forward/reverse DC motor drivers with brush motors. This component is tailored for applications requiring precise motor control and is particularly suited for office equipment such as photocopiers and printers. It offers advanced features like forward, reverse, and brake operations, all controlled by external input PWM signals.
Key Specifications
| Parameter | Symbol | Conditions | Ratings | Unit |
|---|---|---|---|---|
| Maximum supply voltage 1 | Vcc1 max | Vcc2=0V | 52 | V |
| Maximum supply voltage 2 | Vcc2 max | No signal | -0.3 to +7.0 | V |
| Input voltage | VIN max | Logic input pins | -0.3 to +7.0 | V |
| Output current 1 | IO max | VDD=5.0V, DC current | 5.8 A | A |
| Brake current | IOB max | VDD=5.0V, square wave current, operating time 60ms (single pulse, low side brake) | 8 A | A |
| Allowable power dissipation | PdPK max | No heat sink | 3.1 W | W |
| Operating substrate temperature | Tc | Metal surface temperature of the package | 105 °C | °C |
| Junction temperature | Tj max | 150 °C | °C | |
| Storage temperature | Tstg | -40 to +125 °C | °C |
Key Features
- Allows forward, reverse, and brake operations in accordance with the external input PWM signal.
- 5.8A peak startup output current and 8A peak brake output current.
- Built-in current detection resistor (0.05Ω : resistor tolerance ±2%) and supports constant-current control.
- Eliminates the need to design for the dead time when switching between forward and reverse operation modes.
- Over temperature current suppression function to protect the driver from destruction in abnormal motor locked states.
- PWM pin frequency range: 0 to 20 kHz with a minimum pulse width of at least 10μs.
Applications
- Office photocopiers
- Printers
- Other office equipment requiring precise DC motor control.
Q & A
- What is the STK681-360-E used for?
The STK681-360-E is used as a hybrid IC for PWM current control in forward/reverse DC motor drivers with brush motors.
- What are the maximum supply voltages for Vcc1 and Vcc2?
The maximum supply voltage for Vcc1 is 52V, and for Vcc2, it is -0.3 to +7.0V.
- What is the peak output current and brake current?
The peak output current is 5.8A, and the peak brake current is 8A.
- Does the STK681-360-E have built-in current detection?
- What is the operating substrate temperature range?
The operating substrate temperature range is 0 to 105°C.
- What is the junction temperature limit?
The junction temperature limit is 150°C.
- What are the storage temperature limits?
The storage temperature limits are -40 to +125°C.
- What is the PWM pin frequency range?
The PWM pin frequency range is 0 to 20 kHz with a minimum pulse width of at least 10μs.
- What applications is the STK681-360-E typically used in?
The STK681-360-E is typically used in office equipment such as photocopiers and printers.
- Does the STK681-360-E have over temperature current suppression?
