Section 80
00-02-0829
2018-02-26
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1.2 Description
The IX3212 PDM is a robust, compact, fully encapsulated unit and is designed for off-highway
mobile equipment and other industrial applications.
It features 12 tri-state digital inputs, eight analog inputs and 12 high-current (15 A) high-side
outputs. The unit also features a fully protected 5V sensor supply capable of driving 70 mA.
The 12 high-current outputs can be configured as H-Bridge pairs. The outputs also can be
configured for pulse-width-modulated (PWM) operation. Outputs 1 to 6 feature a 500 Hz PWM
frequency with better than 1 percent duty cycle resolution; these can be used to proportionally
drive outputs. Outputs 7 to 12 offer 100 Hz PWM frequency with 10 percent duty cycle
resolution. These outputs are best suited for applications where it is acceptable for output
levels to increase in incremental steps or with a defined ramp rate.
Each output channel incorporates output-overload-shutdown configurable in 2.5A increments,
diagnostic indication of short circuit, overload (based on shutdown value) and open circuit. An
indication is given when the entire module has total current overload. The regulated 5-volt
output is monitored and two bits indicate diagnostic status for an overload, short circuit or
short-to-supply.
The PDM uses CAN messages to receive configuration and control messages as well as send
feedback and diagnostics using J1939 Proprietary Group A constructs.
