NCR401T datasheet(6/12 Pages) NEXPERIA

Part #	NCR401T

Description	10 mA LED driver in SOT23

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Manufacturer	NEXPERIA [Nexperia B.V. All rights reserved]

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Nexperia

NCR401T

10 mA LED driver in SOT23

NCR401T

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Product data sheet

16 October 2015

6 / 12

VSUP (V)

aaa-019591

0.4

0.8

1.2

IGND

(mA)

Tamb = 85 °C

Tamb = -40 °C

Tamb = 25 °C

IO = 0 A

Fig. 5. Ground current as a function of supply voltage; typical values

11. Application information

Fig. 6 shows a typical application circuit for an LED driver. The constant current ensures

a constant LED brightness. The output current slightly decreases when the power load at

the LED driver increases. This effect is due to self heating of the device and the negative

thermal coefficient of the output current.

aaa-019594

VSUP

LED

GND

Fig. 6. LED driver application diagram

The output can be switched ON and OFF by connecting a Resistor-Equipped Transistor

(RET), e.g. PDTC124XU; see Fig. 7

NCR401T Datasheet(PDF) 6 Page - Nexperia B.V. All rights reserved