LM3434SQX National Semiconductor Corporation, LM3434SQX Datasheet - Page 7

• Manufacturer Part Number: LM3434SQX
• Description: Lm3434 Common Anode Capable High Brightness Led Driver With High Frequency Dimming
• Manufacturer: National Semiconductor Corporation

I
Top trace: EN input, 2V/div, DC
Middle trace: V
Bottom trace: I
T = 100µs/div
I
Top trace: DIM input, 2V/div, DC
Bottom trace: I
T = 10µs/div
LED
LED
= 6A nominal, V
= 6A nominal, V
LED
LED
EE
input current, 2A/div, DC
, 2A/div, DC
Showing Inductor Ripple Current
, 2A/div, DC
30kHz PWM Dimming Waveform
IN
IN
= 3.3V, V
= 3.3V, V
V
SENSE
Startup Waveform
(ADJ = 1.0V)
EE
EE
vs. Temperature
= -12V, V
= -12V
LED
= 3V, SS = open
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I
Top trace: EN input, 2V/div, DC
Middle trace: V
Bottom trace: I
T = 100µs/div
LED
= 6A nominal, V
Average LED Current vs. DIM Duty Cycle
LED
EE
(30kHz dimming, I
input current, 2A/div, DC
, 2A/div, DC
IN
= 3.3V, V
Shutdown Waveform
EE
= -12V, V
LED
LED
= 6A nominal)
= 3V, SS = open
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