UCD3138064RMHT datasheet(47/104 Pages) TI

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BIT

PIN_NAME

DPWM2A

DPWM1B

DPWM1A

DPWM0B

DPWM0A

9.3.13 Temperature Sensor Control

Temperature sensor control register provides internal temperature sensor enabling and trimming capabilities.

The internal temperature sensor is disabled by default.

Figure 9-20. Internal Temp Sensor

Temperature sensor is calibrated at room temperature (25 °C) via a calibration register value.

The temperature sensor is measured using ADC12 (via channel 14). The temperature is then calculated using a

mathematical formula involving the calibration register (this effectively adds a delta to the ADC measurement).

The temperature sensor can be enabled or disabled.

9.3.14 I/O Mux Control

I/O Mux Control register may be used in order to choose a single specific functionality that is desired to be

assigned to a physical device pin for your application. See the UCD3138x programmer's manual for details on

the available configurations.

9.3.15 Current Sharing Control

UCD3138x provides three separate modes of current sharing operation.

• Analog bus current sharing

• PWM bus current sharing

• Master/Slave current sharing

• AD02 has a special ESD protection mechanism that prevents the pin from pulling down the current-share bus

if power is missing from the UCD3138x

The simplified current sharing circuitry is shown in the drawing below. The digital pulse connected to SW3

transforms SW3 into a pulse-width-modulated current source. Details on the frequency and resolution of this

feature are in the digital power fusion peripherals manual.

www.ti.com

UCD3138064

SLUSB72D – MARCH 2013 – REVISED APRIL 2021

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UCD3138064RMHT Datasheet(PDF) 47 Page - Texas Instruments