LM3492HCMH datasheet(9/29 Pages) TI1

Il numero della parte	LM3492HCMH

Spiegazioni elettronici	Two-Channel, Individual Dimmable LED Driver

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Produttore elettronici	TI1 [Texas Instruments]

Homepage	http://www.ti.com

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Input Voltage (V)

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D001

VOUT = 27V

VOUT = 30V

VOUT = 33V

VOUT = 36V

Input Voltage (V)

6

8

10

12

14

16

18

20

22

24

160

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200

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D001

VOUT = 27V

VOUT = 30V

VOUT = 33V

VOUT = 36V

LM3492HC-Q1, LM3492HC

www.ti.com

SNVS797B – MARCH 2012 – REVISED OCTOBER 2015

Typical Characteristics (continued)

Unless otherwise specified the following conditions apply: TJ = 25°C, VIN = 12 V with configuration in typical application circuit

for ILED = 250 mA shown in this data sheet.

ILED = 0.25 A

Dimming frequency = 200 Hz

Figure 12. LED 50% Dimming Waveforms

Figure 11. Steady-State Operation

ILED = 0.25 A

Dimming frequency = 200 Hz

ILED = 0.25 A

Dimming frequency = 200 Hz

Figure 14. 10000:1 LED Dimming Waveforms

Figure 13. 1000:1 LED Dimming Waveforms

ILED = 0.15 A

RRT = 178 kΩ

ILED = 0.15 A

RRT = 499 kΩ

Figure 15. Switching Frequency vs Input Voltage

Figure 16. Switching Frequency vs Input Voltage

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