MAX17061A datasheet(2/24 Pages) MAXIM

2 / 24 page

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(Circuit of Figure 1. VIN = 12V, CCCV = 0.022µF, RCCV = 5.1kΩ, VISET = VOSC = VDD = VCC = 5V, RFSET = 464kΩ, VPWMI = GND,

TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°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.

IN to GND ..............................................................-0.3V to +28V

FB_, LX_ to GND ....................................................-0.3V to +45V

PGND_ to GND......................................................-0.3V to +0.3V

VCC, VDD, PWMI, SDA, SCL to GND ........................-0.3V to +6V

ISET, CCV, PWMO, FSET, OSC,

OV to GND ...............................................-0.3V to VCC + 0.3V

Continuous Power Dissipation (TA = +70°C)

28-Pin Thin QFN (derate 16.9mW/°C above +70°C) .1667mW

Operating Temperature Range ...........................-40°C to +85°C

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

Storage Temperature Range .............................-60°C to +150°C

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

8-String White LED Driver with

SMBus for LCD Panel Applications

_______________________________________________________________________________________

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IN Input Voltage Range

7.5

Rising edge

7.08

7.2

7.32

IN UVLO Threshold

Falling edge

6.86

6.98

7.1

MAX17061A is enabled

110

IN Input Current

VIN = 26V

MAX17061A is disabled, TA = +25°C

μA

VCC Input Voltage

4.5

5.5

VCC UVLO Threshold

Rising edge, typical hysteresis = 10mV

4.00

4.25

4.45

VCC Quiescent Current

MAX17061A is enabled

1.24

VCC Shutdown Current

MAX17061A is disabled

μA

BOOST CONVERTER

LX On-Resistance

20mA from LX_ to PGND

0.15

0.3

LX Leakage Current

45V on LX_, TA = +25°C

μA

VOSC = VCC

0.9

1.0

1.1

MHz

VOSC = open

675

750

825

Operating Frequency

VOSC = GND

450

500

550

kHz

OSC High-Level Threshold

VCC -

0.4

OSC Midlevel Threshold

1.5

VCC -

2.0

OSC Low-Level Threshold

0.4

Minimum Duty Cycle

PWM mode (Note 1)

Maximum Duty Cycle

95.5

LX Current Limit

Duty cycle = 75% (Note 1)

1.6

CONTRL INPUT

SDA, SCL Logic Input-High Level

2.1

SDA, SCL Logic Input-Low Level

0.8

PWMI Logic Input-High Level

2.1

PWMI Logic Input-Low Level

0.8

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