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MAX16805 Datasheet, PDF (3/19 Pages) Maxim Integrated Products – EEPROM-Programmable, High-Voltage, 350mA LED Drivers with LED Current Foldback
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EEPROM-Programmable, High-Voltage, 350mA
LED Drivers with LED Current Foldback
ELECTRICAL CHARACTERISTICS (continued)
(VIN = VEN = 12V, CV5 = 0.1µF, IV5 = 0, CS- = GND, RSENSE = 0.56Ω, VDIM = 4V, DGND = GND, TFP/SCL = 5V, TFN/SDA = 0V,
SW = CFD = Open, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Minimum Regulated VSENSE
Programming Range
Maximum Regulated VSENSE
Programming Range
SYMBOL
VSENSE(MIN)
VSENSE(MAX)
CONDITIONS
MIN TYP MAX UNITS
99.4 103 106.6
mV
192 198 204
Regulated VSENSE Default
Voltage
VSENSE(DEF)
Binning Adjustment register at factory
default (0x0F)
EXTERNAL PWM DIMMING INPUT
DIM Input Current
Turn-On Time
Turn-Off Time
tON
After DIM rising to 4V (Note 4)
tOFF
After DIM falling to 0.6V (Note 4)
THERMAL FOLDBACK (MAX16806 with MAX6613)
Maximum Thermal Foldback
Knee Point Programming Range
TFKNEE(MAX)
Minimum Thermal Foldback Knee
Point Programming Range
TFKNEE(MIN)
198
mV
0.5
µA
28
52
µs
19
38
µs
326 335 354
mV
1143 1174 1213
Minimum Thermal Foldback
Temperature Programming Range
Maximum Thermal Foldback
Temperature Programming Range
TF(MIN)
TF(MAX)
+ 60
°C
+135
Thermal Foldback Default
Threshold Temperature
VTH
Thermal Foldback Knee Point register at
factory default (0x00)
+60
°C
Thermal Foldback Default
Threshold Voltage
TFVTH
1.174
V
Minimum Thermal Foldback Slope
Maximum Thermal Foldback Slope
TFSL(MIN)
TFSL(MAX)
3.88
4
4.12
V/V
15.52 16 16.48 V/V
Thermal Foldback Default Slope
TFP/SCL (SCL for MAX16805)
Voltage Compliance Range
Thermal Foldback Slope Gain register at
factory default (0x03)
4
VTFP
I2C interface active
Remote thermal sensor active
-0.3
+0.3
V/V
V5
V
V5
TFN/SDA (SDA for MAX16805)
Voltage Compliance Range
VTFN
-0.3
V5
V
Minimum Thermal Foldback
Clamp Current Reduction Range
TFC(MIN) +25oC ≤ TA ≤ +125oC
40
%
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