MAX14872 datasheet(3/15 Pages) MAXIM

3 / 15 page

(VDD = 4.5V to 36V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = 12V, TA = +25°C) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DRIVER (M1, M2)

Driver Output Resistance

(High-Side + Low-Side)

RON

IM_ = 2.5A

TJ = 25°C

280

395

mΩ

TJ = 125°C

410

580

Driver Overload Current Limit

IM_OL

M1, M2 Leakage Current

IM_LKG

EN = High, VM1 = VM2 = 0V or VDD

-1

μA

M1, M2 Body Diode

Forward-Voltage

VBF

Low-side diode, EN = High, IF = 2.5A

1.5

High-side diode, EN = High, IF = 2.5A

1.5

CURRENT REGULATION (SNS, COM)

SNS Current Sense Threshold

VSNS_TH

VSNS rising (Note 3)

100

110

SNS Input Leakage Current

ISNS_LKG

VSNS = ±250mV

-1

μA

COM Leakage Current

ICOM_LKG

EN = High, VCOM = ±250mV

-1

μA

LOGIC SIGNALS (PWM, DIR, FWD, REV, EN, FAULT)

Input Logic-High Voltage

VIH

FWD, REV, PWM, DIR

Input Logic-Low Voltage

VIL

FWD, REV, PWM, DIR

0.8

EN Input Logic-High Voltage

VEN_IH

1.6

EN Input Logic-Low Voltage

VEN_IL

0.4

Input Leakage Current

IIL

PWM, DIR, FWD, REV, EN,

VINPUT = 5.5V or 0V

-1

μA

FAULT Output Low Voltage

VOL

FAULT asserted, ISINK = 5mA

0.5

FAULT Off Leakage Current

IF_LKG

FAULT deasserted, VFAULT = 5.5V

-1

μA

PROTECTION

Thermal-Shutdown Threshold

TSHDN

Temperature rising, FAULT asserted

+160

°C

Thermal-Shutdown Hysteresis

TSHDN_HYST

°C

MAX14870/MAX14872

Compact 4.5V to 36V

Full-Bridge DC Motor Drivers

www.maximintegrated.com

Maxim Integrated │ 3

Electrical Characteristics (continued)

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