MAX4987AE datasheet(2/10 Pages) MAXIM

2 / 10 page

Overvoltage-Protection Controller

with USB ESD Protection

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = +2.2V to +28V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN = +5V and 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.

(All voltages referenced to GND.)

IN ............................................................................-0.3V to +30V

OUT.............................................................-0.3V to +(IN + 0.3V)

VCC, EN, ACOK, CD+, CD- ......................................-0.3V to +6V

Continuous Power Dissipation (TA = +70°C) for multilayer board:

8-Pin TDFN (derate 16.7mW/°C above +70°C) .........1333mW

Package Junction-to-Ambient Thermal Resistance

(

θJA) (Note 1) ................................................................60.0°C/W

Package Junction-to-Case Thermal Resistance

(

θJC) (Note 1) ................................................................10.8°C/W

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

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

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

Lead Temperature (soldering) .........................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

ANALOG SWITCH

Input-Voltage Range

VIN

2.2

VCC Input Voltage

VCC

5.5

EN = 0V, VIN > VUVLO

150

Input Supply Current

IIN

EN = 5V, VIN > VUVLO

100

µA

UVLO Supply Current

IUVLO

VIN < VUVLO

µA

MAX4987AE

2.3

(VIN falling)

MAX4987BE

3.8

MAX4987AE

2.35

2.55

2.75

IN Undervoltage Lockout

VUVLO

(VIN rising)

MAX4987BE

3.85

4.2

4.45

IN Undervoltage Lockout Hysteresis

(VIN rising)

5.55

6.15

6.45

Overvoltage Trip Level

VOVLO

(VIN falling)

5.5

IN Overvoltage Lockout Hysteresis

Switch On-Resistance

RON

VIN = 5V, IOUT = 500mA

100

200

Overcurrent Protection Threshold

ILIM

1.5

4.2

Maximum Output Capacitance

VIN = 5V, no overcurrent shutdown

1000

µF

CD+ and CD- Leakage Current

ILKG_CD

VCC = 5.5V, VCD_ = 0V, 3.3V

-300

+300

CD+ and CD- Capacitance

CCD

f = 1MHz, VCD_ = 0.5P-P

3pF

DIGITAL SIGNALS

ACOK Output Low Voltage

VOL

ISINK = 1mA

0.4

ACOK High-Leakage Current

VACOK = 5.5V, flag deasserted

µA

EN Input-Voltage High

VIH

1.4

EN Input-Voltage Low

VIL

0.4

EN Input-Leakage Current

ILEAK

VEN = 5.5V

-1

µA

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a 4-layer

board. For detailed information on package thermal considerations, go to www.maxim-ic.com/thermal-tutorial.

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