MAX16806 데이터 시트보기 (PDF) - Maxim Integrated

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MAX16806

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

Absolute Maximum Ratings

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)........... 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

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.

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)

PARAMETER

Supply Voltage Range

Ground Current

Shutdown Supply Current

Guaranteed Output Current

Output Current Accuracy

Dropout Voltage (Note 3)

Output Current Slew Rate

(External PWM Signal at DIM)

Short-Circuit Current

ENABLE INPUT

EN Input Current

EN Input-Voltage High

EN Input-Voltage Low

Enable Turn-On Time

5V REGULATOR

Output Voltage Regulation

(MAX16806)

Output Voltage Regulation

(MAX16805)

CURRENT SENSE

Regulated RSENSE Voltage

Input Current (CS+)

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

VIN

(Note 2)

5.5

40

V

IG

ILOAD = 350mA

2.5

4.5

mA

ISHDN

VEN ≤ 0.3V

12

40

µA

IOUT

RSENSE = 0.55Ω

350

mA

35mA < IOUT < 350mA, RSENSE tolerance

not included

3.0

%

ΔVDO

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

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

Current rising, DIM rising to 4V

Current falling, DIM falling to 0.6V

0.4

1.2

V

0.5

1.5

17

mA/µs

17

VOUT = 0V

600

mA

IEN

VIH

VIL

tON

EN rising edge to 90% of OUT

100

nA

2.8

V

0.6

V

225

µs

V5

6.5V < VIN < 40V

0 < IV5 < 0.5mA,

SW = GND

0 < IV5 < 2mA,

SW = open

4.9

5.1

5.3

4.9

5.1

5.3

V

V5

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

4.9

5.1

5.3

V

VRSNS

VSENSE = [VCS+ - VCS-], Binning

Adjustment register at factory default

(0x0F)

VCS+ = 210mV

192

198

204

mV

12

µA

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