The L6506/Dis a linear integrated circuit designed to sense and control the current in stepping motors and similar devices. When used in conjunction with the L293, L298, L7150, L6114/L6115, the chip set forms a constant current drive for an inductive load and performs all the interface function from the control logic thru the power stage. Two or more devices may be synchronized using the sync pin. In this mode of operation, the oscillator in the master chip sets the operating frequency in all chips.
The L6506/L6506D is a linear integrated circuit designed to sense and control current in stepping motors and similar inductive loads. It includes a comparator, logic, and oscillator section and is typically used with drivers like the L298 or L7150 to form a constant current drive. The device can be synchronized via the sync pin for multiple units. Applications include bipolar stepper motor drivers and microstepping implementations. The datasheet details absolute maximum ratings, electrical characteristics, oscillator behavior, and application circuits with component equations for programming peak current.
| Supply Voltage | 4.5 to 7 V |
|---|---|
| Quiescent Supply Current | 2 to 5 mA |
| Input Voltage Range | -0.3 to 3 V |
| Operating Frequency Range | 5 to 70 kHz |
| Junction Temperature | 150 °C |
The operating frequency range is 5 to 70 kHz.
Peak current is programmed by selecting the value of the sense resistor and Vref.
It is typically used with drivers such as the L298, L7150, or L6114/L6115.