PCA9901_1

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 01 — 3 December 2009

13 of 27

NXP Semiconductors

PCA9901

One wire single LED driver

9.

Application design-in information

002aac609

CTRL

ISET

LEDOUT

GND

HOST

CONTROLLER

PCA9901

GND

Rext(1)

(1) Accuracy of the output current directly proportional to the accuracy of the external resistor.

R

ext

1.23

400

×

I

LEDOUT

-------------------------

=

Fig 10. Application diagram

10. Limiting values

Table 4.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

supply voltage

−0.3

+6.0

V

input voltage

CTRL pin

−0.3

V

ISET pin

−0.3

V

input current

ISET

-

125

μA

output current

LEDOUT

-

50

mA

ISET

-

125

μA

storage temperature

−65

+150

°C

ambient temperature

operating

−40

+85

°C

electrostatic discharge

voltage

HBM

−2000

+2000

V

MM

−200

+200

V

CDM

−500

+500

V

voltage on pin LEDOUT

HBM

[1]

−2000

+2000

V

[1]

ESD rating on that specific pin may be higher. Will be updated if needed when device available and ESD

test performed.