epc110

Connection Diagrams

Top View

CS

OUTN

SO

PD

GND

VDD

EN

SI

LED

SCK

VDD33

OUTH

VDD18

3

2

1

10

5

4

7

6

8

9

PIN Connections QFN16-VEED-

1VN4

LST

20.05.2011

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PIN Connections QFN16-VEED-

1VN4

LST

Top View

1

2

3

4

PD

GND

LED/SCK

EN/SI

NC_GND

NC_GND

NC_GND

NC_GND

10-Pin Chip Scale Package (CSP)

16-Pin QFN Package

10-Pin

CSP

16-Pin

QFN

Pin Name Type

Description

1

9

VDD

Power Supply

Positive power supply.

Operation mode: to be connect to VDD33.

During command PROG: to be connected to programming voltage.

2

7

GND

Power Supply

Negative power supply pin.

3

6

PD

Analog Input

Photo diode input.

4

4

CS

Digital Input

Terminated with internal pull up resistor

Light barrier:

Mode selection:

CS = 1: Operation Mode (LED, EN, OUTN active)

SPI interface:

Chip select,

CS = 0: Command/Program Mode (SCK, SI, SO active)

5

2

OUTH

Digital Output

Load depending

Light reserve detected - see Figure 8.

Refer to section Light Reserve Output OUTH

Open drain output

6

1

OUTN

SO

Digital Output

Open drain output

Light barrier:

Light pulses detected, amplified and filtered signal

see Functional Description

SPI interface:

Serial data output

7

15

EN

SI

Digital Input

Terminated with internal pull up resistor

Light barrier:

Fork light barrier controlled mode:

LED pulse stimulation

Fork light barrier standalone mode:

No function.

SPI interface:

Serial data input

8

14

LED

SCK

Digital Output

Digital Input

Light barrier:

Output to LED driver

SPI interface:

Serial input/output clock.

For start/stop condition of SPI communication (while CS = 1):

Set SCK =1 and SCK line in tristate mode (high ohmic)

12

VDD33

Power Supply

Positive power supply.

10

10

VDD18

Decoupling

Pin for external filter/decoupling of the internal 1.8V supply: 4.7nF ceramic type

Not for supply of external circuits

n/a

3, 5, 8,

11, 13,

16

NC_GND

Not connected. Connect this pins to GND (Guarding).

© 2011 ESPROS Photonics Corporation

Characteristics subject to change without notice

5

Datasheet epc110 - V2.1

www.espros.ch