MAX17008GTI datasheet(2/36 Pages) MAXIM

Part #	MAX17008GTI

Description	Dual and Combinable QPWM Graphics Core Controllers for Notebook Computers

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Manufacturer	MAXIM [Maxim Integrated Products]

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Dual and Combinable QPWM Graphics

Core Controllers for Notebook Computers

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = 12V, VDD = VCC = VEN1 = VEN2 = 5V, VREFIN1 = 2V, SKIP = GND, TA = 0 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.

BST1, BST2 to GND ...............................................-0.3V to +34V

BST1, BST2 to VDD.................................................-0.3V to +28V

TON1, TON2 to GND..............................................-0.3V to +28V

VDD to GND ..............................................................-0.3V to +6V

VDD to VCC ............................................................-0.3V to +0.3V

LX1 to BST1..............................................................-6V to +0.3V

LX2 to BST2..............................................................-6V to +0.3V

DH1 to LX1 ..............................................-0.3V to (VBST1 + 0.3V)

DH2 to LX2 ..............................................-0.3V to (VBST2 + 0.3V)

ILIM1, ILIM2, REF to GND ..........................-0.3V to (VCC + 0.3V)

CSH1, CSH2, CSL1, CSL2, FB2, REFIN1 to GND....-0.3V to +6V

EN1, EN2, SKIP, PGOOD1, PGOOD2 to GND.........-0.3V to +6V

DL1 to GND ................................................-0.3V to (VDD + 0.3V)

DL2 to PGND..............................................-0.3V to (VDD + 0.3V)

PGND to GND ......................................................-0.3V to + 0.3V

REF Short Circuit to GND ...........................................Continuous

Continuous Power Dissipation (TA = +70°C)

28-Pin TQFN T2844-1

(derate 20.8mW/°C above +70°C) ............................1667mW

Extended Operating Temperature Range .........-40°C to +105°C

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

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

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

Soldering Temperature ....................................................+260°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

PWM CONTROLLER

Input Voltage Range

VIN

4.5

26

V

Quiescent Supply Current

(VDD, VCC)

IDD + ICC

Output forced above regulation voltage,

VEN1 = VEN2 = 5V

1.7

2.5

mA

Shutdown Supply Current

(VDD, VCC)

ISHDN

EN1 = EN2 = GND, TA = +25°C

0.1

5

µA

RTON1 = RTON2 =

97.5k

(600kHz)

142

(-15%)

174

194

(+15%)

RTON1 = RTON2 =

200k

(300kHz)

305

(-10%)

336

368

(+10%)

On-Time (Note 1)

tON1, tON2

VIN = 12V,

VCSL1 = VCSL2 =

VCCI = 1.2V,

separate or

combined mode

RTON1 = RTON2 =

302.5k

(200kHz)

425

(-15%)

500

575

(+15%)

ns

Minimum Off-Time

tOFF(MIN)

(Note 1)

250

400

ns

TON1, TON2, Shutdown Supply

Current

ITON1,

ITON2

EN1 = EN2 = GND, VTON1 = VTON2 = 26V,

VDD = 0 or 5V, TA = +25°C

0.01

1

µA

REFIN1 Voltage Range

VREFIN1

(Note 2)

0

VREF

V

FB2 Regulation Voltage

VFB2

Adjustable mode

0.7

V

FB2 Input Voltage Range

Preset mode

1.7

2.3

V

FB2 Combined-Mode Threshold

Combined mode

3.8

VCC -

1V

VCC -

0.4

V

REFIN1 Dual Mode™

Switchover Threshold

3.8

VCC -

1V

VCC -

0.4

V

REFIN1, FB2 Bias Current

IREFIN1,

IFB2

REFIN1 = 0.5V to 2V;

VFB2 = 0.7V, TA = +25°C

-0.1

+0.1

µA

VCSL1

Measured at CSL1, REFIN1 = VCC,

VIN = 2V to 26V,

SKIP = VCC (Note 2)

1.043

1.05

1.057

V

TA = +25°C

-12

+12

REFIN1 = 500mV,

SKIP = VCC

TA = 0°C to +85°C

-20

+20

SMPS1 Voltage Accuracy

VCSL1 -

VREFIN1

REFIN1 = 2V,

SKIP = VCC

-20

+20

mV

Dual Mode is a trademark of Maxim Integrated Products, Inc.

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