CS4161

Features:

· Undervoltage Lockout
· Cross-conduction Prevention Logic
· Divide by 1 and Divide by 2 Modes
· Guaranteed Monotonic
· On Chip Flyback Diodes
· Fault Protection Overvoltage Load Dump Protection to 60V


Pinout




Specifications

Supply Voltage (VCC) (continuous) -40ûC to +105ûC ..........-0.5 to 24V
(100ms pulse transient) -40ûC to +105ûC...........................-0.5 to 60V
Input Voltage (VIN) .................................................. -0.3 to VCC +0.3V
Operating Temperature Range .........................................-40 to 105
Storage Temperature Range (TSTG) ............................... -65 to 150
Junction Temperature Range ...........................................-40 to 150
ESD (Human Body Model) ............................................................... 2kV
Lead Temperature Soldering
    Wave Solder (through hole styles only)...........10 sec. max, 260 peak


Description

The CS4161 is a Stepper Motor Driver that implements an H-Bridge design in order to drive two coils in an eight step sequence per revolution in the divide by 1 mode; 16 step sequence in the divide by 2 mode. The H-Bridge is capable of delivering 85mA to the load.

The sequencer insures that the odometer is monotonic. CS4161 sequencer is configured such that simultaneous conduction does not occur. Before each successive output sequence the part is taken through a state where both outputs are turned off individually. This tends to minimize the inductive kick back energy that the part must absorb. On chip clamp diodes are across each output to protect the part from the kick back energy that it must absorb.

The CS4161 includes overvoltage  and short circuit protection circuitry. It is lead for lead compatible with the CS-8441. The CS4161 includes an additional undervoltage lockout (UVLO) function which disables the output stage until the supply voltage rises above 5.6V, typically. The UVLO has hysteresis to prevent any power up glitching.