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PSSI2021SAY

Constant current source in SOT353 package

NXP Semiconductors. 

PSSI2021SAY

Constant current source in SOT353 package

Rev. 03 — 27 August 2009

Product data sheet

1. Product profile

1.1 General description

Resistor-equipped PNP transistor with two diodes on one chip in a SOT353 (SC-88A)

plastic package. Stabilized output current of between 15 µA and 50 mA by connection of

an external resistor between pins 4 and 5.

1.2 Features

I One chip integrated constant current source

I Output current setting by use of an external resistor

I Very small package

I Reduces component count and board space

1.3 Applications

I Automotive applications

I Generic constant current source

I Constant current LED driver

I Active bias control for audio amplifiers

1.4 Quick reference data

Table 1.

Symbol

Iout

VS

Quick reference data

Parameter

output current

supply voltage

Conditions

Min Typ

0.015 -

-

-

Max Unit

50

mA

75

V

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