Datasheet

DS_INLC10AQ Revision 1.0_B

Inova Semiconductors Confidential

Page 3 of 35

1.0

Block Diagram

Figure 1: INLC10AQ block diagram

The device implements a communication for the reception of control commands and for providing device

status and configuration data.

Low side, configurable constant current sinks are provided for controlling 3 LEDs (i.g. RGB).

The main unit computes the PWM duty cycles from the incoming commands and applies the corresponding

control values to the three PWM units.

The main unit is also in charge of a periodic temperature measurement and an appropriate duty cycle

adjustment for the red PWM channel.

The actual device temperature is obtained via an integrated analog-digital converter (ADC).

Besides the temperature the ADC can also measure various other analog values. These measurements are

always triggered by a command from the host. The result of the corresponding A/D conversion is also

retrieved by a host command. As each device is individually calibrated to compensate for production

variations, the corresponding parameters can be stored in an on-die non-volatile memory.

This one-time-programmable memory (OTP) is read at hardware reset and the parameters are copied from

the OTP to directly accessible registers.