iW7027 Product Summary

16-Channel LED Driver for

LCD Panel Backlighting

Rev. 0.3 Preliminary

iW7027

© 2015 Dialog Semiconductor (UK) Ltd.

Product Summary

4 of 9

Pin #

Name

Type

Pin Description

QFP44 QFN48

1

1

VIN

Supply Input

Input voltage to the main supply rail.

2

2

VDD5

Analog Output 5V input and LDO Compensation Pin.

3

3

FAULTB

Analog Output Fault status (Active Low) - Open drain. pull-up to 5V with a

100KOhm +5% resistor.

4

4

FB1

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

for LED

5

5

FB2

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

for LED.

6

SENS_GND

6

7

CSB

Digital Input

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

7

8

MOSI

Digital Input

Master output, slave input for SPI.

8

9

SCK

Digital Input

SCK, serial clock input for Serial Peripheral Interface (SPI)/In drect

PWM mode , can be reused as PWM In.

9

10

MISO

Digital 3 State

Output

Master input, slave output for SPI.

10

11

VSYNC/

PWMIN

Digital Input

VSYNC clock input in SPI dimming mode.

11

12

CPLL/CLKIN

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

12

13

G16

Analog Output Gate of external MOSFET.

13

14

S16

Analog Input

Source of external MOSFET.

14

15

S15

Analog Input

Source of external MOSFET.

15

16

G15

Analog Output Gate of external MOSFET.

16

17

G14

Analog Output Gate of external MOSFET.

17

18

S14

Analog Input

Source of external MOSFET.

XXXX

19

EXPGND

18

20

S13

Analog Input

Source of external MOSFET.

19

21

G13

Analog Output Gate of external MOSFET.

20

22

G12

Analog Output Gate of external MOSFET.

21

23

S12

Analog Input

Source of external MOSFET.

22

24

S11

Analog Input

Source of external MOSFET.

23

25

G11

Analog Output Gate of external MOSFET

24

26

G10

Analog Output Gate of external MOSFET

Pinout Description (continued)