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DS-CoreControl-TDA21302

Number

Name

Description

1

OVP

Over voltage trip output

2

PGOOD

Open drain power good signal output pin

3

VID4

Voltage Identification DAC Input. Internally pull up to 3V.

4

VID3

Voltage Identification DAC Input. Internally pull up to 3V.

5

VID2

Voltage Identification DAC Input. Internally pull up to 3V.

6

VID1

Voltage Identification DAC Input. Internally pull up to 3V.

7

VID0

Voltage Identification DAC Input. Internally pull up to 3V.

8

VID125

Voltage Identification DAC Input. Internally pull up to 3V.

9

VOSS

Connect a resistor to GND to set the initial offset voltage.

10

ADJ

Connect a resistor to GND to set the Droop Voltage.

11

SS

Soft-Start. Connect with a capacitor to GND to set the Soft-Start Interval. Pulling down this pin

below 1V shall shut the converter down.

12

FB

Internal error amplifier inverting input pin

13

COMP

Output of the error amplifier and input of the PWM comparator

14

VDIF

Output pin of the differential converter output voltage sense

15

ISN4

Differential current sense negative input pin connects to the drain pin of channel 4 Sync FET

16

ISN3

Differential current sense negative input pin connects to the drain pin of channel 3 Sync FET

17

ISN2

Differential current sense positive input pin connects to the drain pin of channel 2 Sync FET

18

ISN1

Differential current sense positive input pin connects to the drain pin of channel 1 Sync FET

19

VSEN

The positive input pin of the differential converter output voltage sense amplifier

20

SGND

The negative input pin of the differential converter output voltage sense amplifier

21

GND

Ground pin of the IC

22

PWM3

Channel 3 PWM output pin. Connect to high level for 2 phase operation.

23

ISP3

Differential current sense positive input pin connects to the source pin of channel 3 Sync FET

24

ISP1

Differential current sense positive input pin connects to the source pin of channel 1 Sync FET

25

PWM1

Channel 1 PWM output pin

26

PWM2

Channel 2 PWM output pin

27

ISP2

Differential current sense positive input pin connects to the source pin of channel 2 Sync FET

28

ISP4

Differential current sense positive input pin connects to the source pin of channel 4 Sync FET

29

PWM4

Channel 4 PWM output pin. Connect to high level for 2 or 3 phase operation.

30

VCC

IC power supply pin connects to 5V

31

DVD

Connect the external voltage divider to program the controller under voltage lockout based on

the input voltage of the power stage voltage

32

RT

Connect a resistor to GND to set the channel switching frequency