iW7019 Product Summary

8-Channel LED Driver for

LCD Panel Backlighting

Rev. 1.6

iW7019

© 2016 Dialog Semiconductor (UK) Ltd.

Product Summary

4 of 9

Pin #

QFP44

Pin #

SOP32

Name

Type

Pin Description

1

X

NC

2

14

LED6

Analog Output LED cathode connection for string 6

3

XX

NC

4

15

LED7

Analog Output LED cathode connection for string 7

5

17

LEDGND

Ground

Ground for LED driver

6

17

LEDGND

Ground

Ground for LED driver

7

16

LED8

Analog Output LED cathode connection for string 8

8

X

NC

9

18

VFB

Analog In

Boost controller feedback pin (settled value is 1.2V)

10

19

DPGND

Digital Ground Digital Ground and Boost Pre-Driver’s ground

11

20

CS

Analog In/Out Boost pre-driver sense input

12

21

GDRV

Analog Out

Boost gate drive for external MOSFET

13

22

VCOMP

Analog In

Boost controller loop compensation

14

23

RT

Analog In

Programmable boost switching frequency (100K/150K/200K)

15

24

UVLO

Analog In

Boost UVLO comparator input. Voltage level is greater than 1.2V

for a healthy boost VIN. Customer has to put resistor divider on

16

25

LDO5_A

Analog Output Internal LDO output and analog power section supply.

17

17

LEDGND

Ground

Ground for LED driver

18

17

LEDGND

Ground

Ground for LED driver

19

26

LDO5_D

Analog Output Internal LDO output and digital power section supply.

20

27

RLS

Analog Input Short Level Threshold voltage setting(3/6/9V/12V, with default at

6V), using different resistor selection.

21

28

VIN

Supply Input Input voltage to the main supply rail.

22

29

CSB

Digital Input

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

high is defined as 5.0V

23

30

SCK

Digital Input

SCK, serial clock input for Serial Peripheral Interface (SPI). Logic

high is defined as 5.0V.

24

31

FAULTB

Analog Output Fault status (Active Low) - Open drain. Pull-up to LDO5A with a

100KOhm +5% resistor.

25

32

EN

Digital Input

Enable Input. Logic high is defined as 5.0V.

26

1

VSYNC/PWM

Digital Input

Vertical SYNC input. [optional direct PWM control] logic high is

defined as 5.0V.

27

2

VREF2P5

Analog Output Analog reference for Analog Dimming.

Pinout Description (continued)