L6280 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

L6280

THREE CHANNELS MULTIPOWER DRIVER SYSTEM

STMicroelectronics 

PIN DESCRIPTION

PINS

1

2

3

4

5

6, 7,17,29,

39, 40

8

9

10

11

12

13

14

15

16

NAME

VS

HSD 1

SMPS OUT

HSD 1

HSD 2

GND

LSD 1A

LSD 2A

SENSE 1

LSD 1B

LSD 2B

VS +VDHS

VSS

Comp.

RES OUT

18

ROSC

19

COSC

20

CD

21

VDLS

22

tWD

23

CS

24

WR

25

A0

26

A1

27

A2

28

A3

30

D0

31

D1

32

D2

33

D3

34

LSD 2B

35

LSD 1B

36

SENSE 2

37

LSD 2A

38

LSD 1A

41

HSD 2

42

HSD 1

43

SENSE 3

44

LSD 1

L6280

FUNCTIONS

Power Supply Voltage Input

High Side CH 3 Power Output

Output of Switchmode Power Supply

High Side CH 1 Power Output

High Side CH 1 Power Output

Common Grounded Terminal

Low Side CH 1 Power Output

Low Side CH 1 Power Output

A Resistor Rsense, connected to this pin allows load current control for CH 1

Low Side CH 1 Power Output

Low Side CH 1 Power Output

Input Voltage for the HSD Gates Drive

Logic Supply Voltage Input

An RC series network allows the compensation of the SMPS regulation loop

The reset open drain output can be used to warn the microprocessor about VS

and VSS status

Together with COSC, sets the cycle time of the SMPS t = 1.1 ROCO

Together with COSC, sets the cycle time of the SMPS t = 1.1 ROCO and sets the

minimum ON time in the PWM current control loop

The value of this capacitor sets the reset delay tD = 7 x 104 CD

By-pass Capacitor of the LSD Gates Voltage drive

The value of this CWD sets the duration of the watchdog monostable tWD = 3 x 104 CWD.

If no watchdog signal is generated into the TWD time the device is automatically

switched off.

Enable Input (active when low)

Write Input. When WR is low the data is loaded into the µP interface

Operation Selection (see programming sequence).

Operation Selection (see programming sequence).

Channel Selection (see programming sequence).

Channel Selection (see programming sequence).

Data (see programming sequence).

Data (see programming sequence).

Data (see programming sequence).

Data (see programming sequence).

Low Side CH 2 Power Output

Low Side CH 2 Power Output

A Resistor Rsense, connected to this pin allows load current control for CH 2

Low Side CH 2 Power Output

Low Side CH 2 Power Output

High Side CH 2 Power Output

High Side CH 2 Power Output

A Resistor Rsense, connected to this pin allows load current control for CH 3

Low Side CH 3 Power Output

3/26

Share Link: