MAX16805 데이터 시트보기 (PDF) - Maxim Integrated

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MAX16805

EEPROM-Programmable, High-Voltage, 350mA LED Drivers with LED Current Foldback

Maxim Integrated 

MAX16805/MAX16806

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

SYMBOL

CONDITIONS

Input Current (CS-)

Minimum Regulated VSENSE

Programming Range

VCS+ = 210mV

VSENSE(MIN)

Maximum Regulated VSENSE

Programming Range

VSENSE(MAX)

Regulated VSENSE Default

Voltage

VSENSE(DEF)

Binning Adjustment register at factory

default (0x0F)

EXTERNAL PWM DIMMING INPUT

DIM Input Current

Turn-On Time

tON

After DIM rising to 4V (Note 4)

Turn-Off Time

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)

Minimum Thermal Foldback

Temperature Programming Range

TF(MIN)

Maximum Thermal Foldback

Temperature Programming Range

TF(MAX)

Thermal Foldback Default

Threshold Temperature

VTH

Thermal Foldback Knee Point register at

factory default (0x00)

Thermal Foldback Default

Threshold Voltage

TFVTH

Minimum Thermal Foldback Slope

Maximum Thermal Foldback Slope

Thermal Foldback Default Slope

TFSL(MIN)

TFSL(MAX)

Thermal Foldback Slope Gain register at

factory default (0x03)

TFP/SCL (SCL for MAX16805)

Voltage Compliance Range

VTFP

I2C interface active

Remote thermal sensor active

TFN/SDA (SDA for MAX16805)

Voltage Compliance Range

VTFN

Minimum Thermal Foldback

Clamp Current Reduction Range

TFC(MIN) +25°C ≤ TA ≤ +125°C

MIN TYP MAX UNITS

-75

µA

99.4 103 106.6

mV

192

198

204

198

mV

0.5

µA

28

52

µs

19

38

µs

326

335

354

mV

1143 1174 1213

+60

°C

+135

+60

°C

1.174

V

3.88

4

4.12

V/V

15.52 16 16.48 V/V

4

V/V

-0.3

V5

V

+0.3

V5

-0.3

V5

V

40

%

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