iW7028 Product Summary

10-Channel LED Driver for

LCD Panel Backlighting

Rev. 0.1 Preliminary

iW7028

© 2015 Dialog Semiconductor (UK) Ltd.

Product Summary

4 of 8

Pin Number

in SOP32

Name

Type

Pin Description

1

G8

Analog Output Gate of external MOSFET.

2

S8

Analog Input Source of external MOSFET.

3

S7

Analog Input Source of external MOSFET.

4

G7

Analog Output Gate of external MOSFET.

5

G6

Analog Output Gate of external MOSFET.

6

S6

Analog Input Source of external MOSFET.

7

S3

Analog Input Source of external MOSFET.

8

G3

Analog Output Gate of external MOSFET.

9

S1

Analog Input Source of external MOSFET.

10

G1

Analog Output Gate of external MOSFET.

11

VSS

Ground

Chip ground.

12

VIN

Supply Input Input voltage to the main supply rail.

13

VDD5

Analog Output 5V input and LDO compensation pin.

14

FAULTB

Analog Output Fault status (active low) - open drain. Pull-up to 5V with a 100K

W

+5% resistor.

15

FB1

Analog Output Analog DAC output interface with external Buck or Boost converter

for LED.

16

FB2

Analog Output Analog DAC output interface with external Buck or Boost converter

for LED.

17

CSB

Digital Input

Slave select input for SPI (Chip Select Bar). Active LOW.

18

MOSI

Digital Input

Master output, slave input for SPI.

19

SCK

Digital Input

Serial clock input for Serial Peripheral Interface (SPI)/In Direct

PWM Mode. It can be reused as PWM In.

20

MISO

Digital 3-State

Output

Master input, slave output for SPI.

21

VSYNC/

PWMIN

Digital Input

VSYNC clock input in SPI dimming mode.

22

CPLL/CLKIN

Analog In/Out PLL compensation output/External Clock In.

23

G16

Analog Output Gate of external MOSFET.

24

S16

Analog Input Source of external MOSFET.

25

G14

Analog Output Gate of external MOSFET.

Pinout Description (continued)