VCNL4020

www.vishay.com

Vishay Semiconductors

Rev. 1.1, 20-Jul-12

3

Document Number: 83476

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

CIRCUIT BLOCK DIAGRAM

Note

• nc must not be electrically connected

Pads 6 and 7 are only considered as solder pads

TEST CIRCUIT

Fig. 1 - Idle Current vs. Ambient Temperature

Fig. 3 - Proximity Value vs. Distance

Fig. 4 - Forward Current vs. Temperature

22621

10 IR cathode

9

GND

8

GND

6

nc

7

nc

IR anode

1

SDA

2

INT

3

SCL

4

V

DD

5

IRED

VCNL 4020

ASIC

Ambi

PD

Proxi

PD

Kodak gray card

(18 % reflectivity)

VCNL4020

IRED

30 mm x 30 mm

Proxi-PD

22300-2

2.4

1.0

1.2

1.4

1.8

1.6

2.0

2.2

110

- 50 - 30

10

50

90

- 10

30

70

22301

V

V

V

V

V

V

V

2.4

1.0

1.2

1.4

1.6

1.8

2.0

2.2

3.8

2.4

2.6

2.8

3.0

3.2

3.4

3.6

22302

100 °C

80 °C

55 °C

25 °C

- 10 °C

- 40 °C

100 000

1

100

1000

10 000

10

0.1

1

10

100

Distance to Reflecting Card (mm)

LED current 200 mA

Media: Kodak gray card

Mod. frequency = 390 kHz

LED current 100 mA

LED current 20 mA

250

0

50

100

150

200

140

- 60

- 20

20

60

100

22304

20 mA

40 mA

60 mA

80 mA

100 mA

120 mA

140 mA

160 mA

180 mA

200 mA

V