XRP2997 datasheet(4/7 Pages) EXAR

Part #	XRP2997

Description	8-Channel Constant Current Linear LED Driver With Smart TalkTM

PDF	7 Pages

Scroll/Zoom	100%

Manufacturer	EXAR [Exar Corporation]

Direct Link	http://www.exar.com

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4 / 7 page

8--C

ell C

stta

ntt C

urrrre

ntt L

Liin

arr L

D D

Drriiv

err W

Wiitth

arrtt T

allk

kTTM

4/7

Rev. 2.2.0

TYPICAL PERFORMANCE CHARACTERISTICS

All data taken at VCC = 5V, RISET = 8kΩ, TA = 25°C, unless otherwise specified - Schematic and BOM from Application

Information section of this datasheet.

Fig. 4: Current per Channel vs Temperature

Fig. 5: PWM Dimming: Current per Channel vs Duty Cycle

Fig. 6: Current per Channel vs Input Voltage

Fig. 7: Current per Channel vs Voltage per Channel

Fig. 8: Maximum Output Current vs Voltage per Channel

Fig. 9: Current per Channel vs RSET resistor

100

Duty cycle (%)

1kHz

100Hz

25kHz

4.2

4.4

4.6

4.8

5.2

5.4

5.6

Input Voltage (V)

0.5

1.0

1.5

2.0

2.5

3.0

Voltage per channel (V)

100

010

Rset (kΩ)

XRP2997 Datasheet(PDF) 4 Page - Exar Corporation

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