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EEPROM-Programmable, High-Voltage, 350mA
LED Drivers with LED Current Foldback
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V EN = 12V, C V5 = 0.1μF, I V5 = 0, CS- = GND, R SENSE = 0.56 Ω , V DIM = 4V, DGND = GND, TFP/SCL = 5V, TFN/SDA = 0V,
SW = CFD = Open, T A = T J = -40°C to +125°C, unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
Minimum Regulated V SENSE
Programming Range
SYMBOL
V SENSE(MIN)
CONDITIONS
MIN
99.4
TYP
103
MAX
106.6
UNITS
mV
Maximum Regulated V SENSE
Programming Range
Regulated V SENSE Default
Voltage
V SENSE(MAX)
V SENSE(DEF)
Binning Adjustment register at factory
default (0x0F)
192
198
198
204
mV
EXTERNAL PWM DIMMING INPU T
DIM Input Current
0.5
μA
Turn-On Time
Turn-Off Time
t ON
t OFF
After DIM rising to 4V (Note 4)
After DIM falling to 0.6V (Note 4)
28
19
52
38
μs
μs
THERMAL FOLDBACK (MAX16806 with MAX6613)
Maximum Thermal Foldback
Knee Point Programming Range
TF KNEE(MAX)
326
335
354
mV
Minimum Thermal Foldback Knee
Point Programming Range
Minimum Thermal Foldback
Temperature Programming Range
TF KNEE(MIN)
TF (MIN)
1143
1174
+60
1213
°C
Maximum Thermal Foldback
Temperature Programming Range
TF (MAX)
+135
Thermal Foldback Default
Threshold Temperature
Thermal Foldback Default
Threshold Voltage
V TH
TF VTH
Thermal Foldback Knee Point register at
factory default (0x00)
+60
1.174
°C
V
Minimum Thermal Foldback Slope
Maximum Thermal Foldback Slope
Thermal Foldback Default Slope
TF SL(MIN)
TF SL(MAX)
Thermal Foldback Slope Gain register at
factory default (0x03)
3.88
15.52
4
16
4
4.12
16.48
V/V
V/V
V/V
TFP/SCL (SCL for MAX16805)
Voltage Compliance Range
V TFP
I 2 C interface active
Remote thermal sensor active
-0.3
+0.3
V5
V5
V
TFN/SDA (SDA for MAX16805)
Voltage Compliance Range
Minimum Thermal Foldback
Clamp Current Reduction Range
V TFN
TF C(MIN)
+25 o C ≤ T A ≤ +125 o C
-0.3
40
V5
V
%
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3
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