MAX16806 datasheet(2/19 Pages) MAXIM

Part #	MAX16806

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

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Manufacturer	MAXIM [Maxim Integrated Products]

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EEPROM-Programmable, High-Voltage, 350mA

LED Drivers with LED Current Foldback

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(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)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

IN to GND ...............................................................-0.3V to +45V

DIM, OUT, EN to GND ................................-0.3V to (VIN + 0.3V)

IN Slew Rate (20V < VIN < 45V) ...................................250mV/µs

SDA, SCL (MAX16805), TFN/SDA,

TFP/SCL (MAX16806) to GND...............................-0.3V to +6V

CFD, CS+, V5 to GND ..............................................-0.3V to +6V

DGND and CS- to GND.........................................-0.3V to +0.3V

OUT Short Circuited to GND Duration (VIN < +16V)..........1 hour

Maximum Current Into Any Pin (except IN and OUT) ......±20mA

Continuous Power Dissipation (TA = +70°C)

20-Pin Thin QFN (derate 34.5mW/°C above +70°C)....2758.6mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage Range

VIN

(Note 2)

5.5

40

V

Ground Current

IG

ILOAD = 350mA

2.5

4.5

mA

Shutdown Supply Current

ISHDN

VEN

≤ 0.3V

12

40

µA

Guaranteed Output Current

IOUT

RSENSE = 0.55

Ω

350

mA

Output Current Accuracy

35mA < IOUT < 350mA, RSENSE tolerance

not included

3.0

%

IOUT = 350mA, 12V < VIN < 40V

0.4

1.2

Dropout Voltage (Note 3)

∆VDO

IOUT = 350mA, 6.5V < VIN < 12V

0.5

1.5

V

Current rising, DIM rising to 4V

17

Output Current Slew Rate

(External PWM Signal at DIM)

Current falling, DIM falling to 0.6V

17

mA/µs

Short-Circuit Current

VOUT = 0V

600

mA

ENABLE INPUT

EN Input Current

IEN

100

nA

EN Input-Voltage High

VIH

2.8

V

EN Input-Voltage Low

VIL

0.6

V

Enable Turn-On Time

tON

EN rising edge to 90% of OUT

225

µs

5V REGULATOR

0 < IV5 < 0.5mA,

SW = GND

4.9

5.1

5.3

Output Voltage Regulation

(MAX16806)

V5

6.5V < VIN < 40V

0 < IV5 < 2mA,

SW = open

4.9

5.1

5.3

V

Output Voltage Regulation

(MAX16805)

V5

0 < IV5 < 2mA, 6.5V < VIN < 40V

4.9

5.1

5.3

V

CURRENT SENSE

Regulated RSENSE Voltage

VRSNS

VSENSE = [VCS+ - VCS-], Binning

Adjustment register at factory default

(0x0F)

192

198

204

mV

Input Current (CS+)

VCS+ = 210mV

12

µA

Input Current (CS-)

VCS+ = 210mV

-75

µA

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