MAX17007 datasheet(4/35 Pages) MAXIM

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Dual and Combinable QPWM Graphics

Core Controllers for Notebook Computers

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ELECTRICAL CHARACTERISTICS (continued)

(VIN = 12V, VDD = VCC = EN1 = EN2 = 5V, VREFIN1 = 2V, SKIP = GND, TA = 0 to +85°C, unless otherwise noted. Typical values are

at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

CURRENT LIMIT

CSH1, CSH2

2.3

Current-Sense Input Range

CSL1, CSL2

2.3

Current-Sense Input (CSH_)

Leakage Current

CSH_ = GND or VCC, TA = +25°C

-0.2

+0.2

µA

Current-Sense Input (CSL_)

Leakage Current

CSL_= CSL_ = 2V, TA = +25°C

µA

TA = +25°C

VCSH_ - VCSL_

ILIM1 = ILIM2 = REF

TA = 0°C to +85°C

VCSH_ - VCSL_, ILIM1 = ILIM2 = VCC

VCSH_ - VCSL_, ILIM1 = ILIM2 = OPEN

Current-Limit Threshold (Fixed)

VCSLIMT_

VCSH_ - VCSL_, ILIM1 = ILIM2 = GND

Current-Limit Threshold

(Negative)

VNEG

VCSH_ - VCSL_,

SKIP = VCC

-1.2 x

VCSLIMIT_

Current-Limit Threshold

(Zero Crossing)

VZX

VCSH_ - VCSL_,

SKIP = GND or OPEN;

ILIM1 = ILIM2 = REF

Ultrasonic Frequency

SKIP = OPEN (3.3V); VCSL1 = VREFIN1 +

50mV; VCSL2 = VFB2 + 50mV

kHz

VCSL1 = VREF1 + 50mV

Ultrasonic Current-Limit

Threshold

SKIP = OPEN (3.3V)

VCSL2 = VFB2+ 50mV

Current-Balance Amplifier (GMI)

Offset

[V(CSH1,CSL1) - V(CSH2,CSL2)] at ICCI = 0

-3

Current-Balance Amplifier (GMI)

Transconductance

ICCI / [V(CSH1,CSL1) - V(CSH2,CSL2)];

VCCI = VCSL1 = VCSL2 = 0.5V to 2V, and

V(CSH_,CSL_) = -60.0mV to +60.0mV,

ILIM1 = GND

180

µS

GATE DRIVERS

Low state (pulldown)

1.7

4.0

DH1, DH2 Gate Driver

On-Resistance

RON(DH)

BST_ - LX_ forced

to 5V

High state (pullup)

1.7

4.0

High state (pullup)

1.3

3.0

DL1, DL2 Gate Driver

On-Resistance

RON(DL)

Low state (pulldown)

0.6

2.5

DH1, DH2 Gate Driver

Source/Sink Current

IDH

DH_ forced to 2.5V, BST_ - LX_ forced to 5V

1.2

DL1, DL2 Gate Driver

Source Current

IDL(SOURCE) DL_ forced to 2.5V

DL1, DL2 Gate Driver

Sink Current

IDL(SINK)

DL_ forced to 2.5V

2.4

DH_ low to DL high

Driver Propagation Delay

DL_ low to DH high

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