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DEMO MANUAL EVAL-LT8376-AZ
BOARD PHOTO
PERFORMANCE SUMMARY
PARAMETER
Input Voltage EMIVIN Range
Switching Frequency (f
)
SW
Spread Spectrum (SSFM) Range
I
LED
Open LED Voltage V
(OVP)
OUT
Typical Efficiency
Internally-Generated PWM Dimming Range
Internally-Generated PWM Dimming Frequency
Peak Current Limit
EMIVIN Undervoltage Lockout (UVLO) Falling
EMIVIN Enable Turn-On (EN) Rising
2
Specifications are at T
A
CONDITION
Operating
R5 = 287k, JP2 = NO SSFM
R5 = 287k, JP2 = SSFM
R1 = 0.05Ω, R8, R15 = 100k,
43V < V
< 57V, V
= 36V
IN
LED
R7 = 1M, R6 = 24.9k
V
= 50V, V
= 36V, I
= 1.5A
IN
LED
LED
with Filters
without Filters
JP3 = INT, JP4 = INT
JP3 = INT, JP4 = INT
R12 = 118k, R5 = 287k
R3 = 402k, R2 = 12.7k
R3 = 402k, R2 = 12.7k
= 25°C
MIN
43
350
1/128
3.3
TYP
MAX
UNITS
57
V
350
kHz
440
kHz
1.5
A
41
V
96
%
96.5
%
100
%
192
Hz
3.6
3.9
A
39.8
V
42.3
V
Rev. 0
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