3

T6818/T6828

4530C–BCD–11/03

Pin Configuration

Figure 2. Pining SO14

GND

OUT3

VS

CS

DI

CLK

GND

GND

OUT1

OUT2

VCC

INH

DO

GND

1

2

3

4

5

6

7

14

13

12

11

10

9

8

Pin Description

Pin

Symbol

Function

1GND

T6818: ground; reference potential; internal connection to pin 7, 8 and 14; cooling tab

T6828: additional connection to heat slug

2

OUT3

Half-bridge output 3; formed by internally connected power MOS high-side switch 3 and low-side switch 3

with internal reverse diodes; short circuit protection; overtemperature protection; diagnosis for short and

open load

3

VS

Power supply for output stages OUT1, OUT2 and OUT3, internal supply

4

CS

Chip select input; 5-V CMOS logic level input with internal pull up;

low = serial communication is enabled, high = disabled

5

DI

Serial data input; 5-V CMOS logic level input with internal pull down; receives serial data from the control

device; DI expects a 16-bit control word with LSB being transferred first

6

CLK

Serial clock input; 5-V CMOS logic level input with internal pull down;

controls serial data input interface and internal shift register (f

7

GND

Ground; see pin 1

8

GND

Ground; see pin 1

9

DO

Serial data output; 5-V CMOS logic level tristate output for output (status) register data; sends 16-bit

status information to the microcontroller (LSB is transferred first); output will remain tristated unless

device is selected by CS = low, therefore, several ICs can operate on one data output line only.

10

INH

Inhibit input; 5-V logic input with internal pull down; low = standby,

high = normal operation

11

VCC

Logic supply voltage (5 V)

12

OUT2

Half-bridge output 2; see pin 2

13

OUT1

Half-bridge output 1; see pin 2

14

GND

Ground; see pin 1