MAX16807AUI datasheet(2/21 Pages) MAXIM

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Integrated 8-Channel LED Drivers with

Switch-Mode Boost and SEPIC Controller

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS (PWM CONTROLLER)

(VCC = +15V, V+ = +3V to +5.5V referenced to PGND, RT = 10kΩ, CT = 3.3nF, REF = open, COMP = open, CREF = 0.1µF, VFB = 2V,

CS = AGND, AGND = PGND = 0V; all voltages are measured with respect to AGND, unless otherwise noted. TJ = TA = -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.

VCC to AGND..........................................................-0.3V to +30V

Current into VCC (VCC > 24V)...........................................±30mA

V+ to PGND..............................................................-0.3V to +6V

OUT to AGND.............................................-0.3V to (VCC + 0.3V)

OUT Current (10µs duration) .................................................±1A

FB, COMP, CS, RTCT, REF to AGND.......................-0.3V to +6V

COMP Sink Current.............................................................10mA

OUT0–OUT7 to PGND............................................-0.3V to +40V

DIN, CLK, LE, OE, SET to PGND..................-0.3V to (V+ + 0.3V)

DOUT Current...................................................................±10mA

OUT0–OUT7 Sink Current...................................................60mA

Total PGND Current ..........................................................480mA

Continuous Power Dissipation (TA = +70°C)

28-Pin TSSOP (derate 27mW/°C* above +70°C) .......2162mW

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

Per JEDEC51 Standard (Multilayer Board).

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

REFERENCE

Output Voltage

VREF

IREF = 1mA, TJ = +25°C

4.95

5.05

Line Regulation

∆VLINE

12V< VCC < 25V, IREF = 1mA

0.4

Load Regulation

∆VLOAD

1mA < IREF < 20mA

Total Output-Voltage Variation

VREFT

(Note 2)

4.875

5.125

Output Noise Voltage

VNOISE

10Hz < f < 10kHz

µV

Output Short-Circuit Current

ISHORT

VREF = 0V

180

OSCILLATOR

Initial Accuracy

TJ = +25°C

kHz

Voltage Stability

12V < VCC < 25V

0.2

0.5

Temperature Stability

RTCT Ramp Peak-to-Peak

1.7

RTCT Ramp Valley

1.1

VRTCT = 2V, TJ = +25°C

7.9

8.3

8.7

Discharge Current

IDIS

VRTCT = 2V, -40

≤ TJ ≤ +125°C

7.5

8.3

9.0

Frequency Range

fOSC

1000

kHz

ERROR AMPLIFIER

FB Input Voltage

VFB

FB shorted to COMP

2.45

2.50

2.55

Input Bias Current

IB(FB)

-0.01

-0.1

µA

Open-Loop Gain

AVOL

≤ VCOMP ≤ 4V

100

Unity-Gain Bandwidth

fGBW

MHz

Power-Supply Rejection Ratio

PSRR

12V

≤ VCC ≤ 25V

COMP Sink Current

ISINK

VFB = 2.7V, VCOMP = 1.1V

COMP Source Current

ISOURCE

VFB = 2.3V, VCOMP = 5V

0.5

1.2

1.8

COMP Output-Voltage High

VOH

VFB = 2.3V, RCOMP = 15k

Ω to AGND

5.8

COMP Output-Voltage Low

VOL

VFB = 2.7V, RCOMP = 15k

Ω to VREF

0.1

1.1

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