Rainbow-electronics MAX4981 Manual do Utilizador descarregar pdf (Página 2)

MAX4978–MAX4981

Overvoltage Protector with

Active Current Limit

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

= 5.0V, V

= 0V, T

= -40°C to +85°C, unless otherwise noted. Typical values are at T

= +25°C.) (Note 2)

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.

(Voltages referenced to GND.)

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

OUT ........................................................................... -0.3V to IN

EN, BAT .................................................................. -0.3V to +6V

SDT Continuous Current ................................................. ±50mA

Continuous Power Dissipation (T

= +70°C)

8-Pin 2mm x 3mm TDFN (derate 16.7mW/°C

above +70°C) ........................................................... 1333mW

Junction-to-Case Thermal Resistance (

) (Note 1)

8-Pin 2mm x 3mm TDFN ......................................... 10.8°C/W

Junction-to-Ambient Thermal Resistance (

) (Note 1)

8-Pin 2mm x 3mm TDFN ............................................ 60°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, 10s) ................................+300°C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Voltage Range V

2.3 28 V

Input Supply Current I

OUT

< I

LIM_MIN

130 190 µA

UVLO Supply Current I

UVLO

= 2.3V 35 60 µA

Shutdown Supply Current I

SHDN

= 5V 15 23 µA

falling 4.2

MAX4978

rising 4.3 4.4 4.5

falling 2.5

IN Undervoltage Lockout V

UVLO

MAX4979/MAX4980/

MAX4981

rising 2.56 2.63 2.70

IN Undervoltage Lockout

Hysteresis

falling 5.5

MAX4978/MAX4980/

MAX4981

rising 5.6 5.7 5.8

falling 6.5

IN Overvoltage Lockout V

OVLO

MAX4979

rising 6.65 6.80 6.95

IN Overvoltage Lockout Hysteresis 1%

BAT Overvoltage Trip Level V

BOTL

MAX4980/MAX4981, V

BAT

rising 4.3 4.4 4.5 V

BAT Overvoltage Hysteresis MAX4980/MAX4981 1 %

BAT Input Leakage Current I

LKGB

MAX4980/MAX4981, V

BAT

= 4.2V 1 µA

Switch On-Resistance R

OUT

= 100mA 85 160 mΩ

=+25°C 850 900 950

= 0°C to +85°C 800 1000

MAX4978, MAX4979,

MAX4980

= -40°C to +0°C 780 1000

=+25°C 1850 1950 2050

Overcurrent Protection Threshold I

LIM

MAX4981

= -40°C to +85°C 1750 1950 2150

Thermal Shutdown T

SHDN

rising 160 °C

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, refer to www.maxim-ic.com/thermal-tutorial

1 2 3 4 5 6 7 8 9 10

Comentários a estes Manuais

Sem comentários

Rainbow-electronics MAX4981 Manual do Utilizador Página 2

Comentários a estes Manuais

Manuais e produtos relacionados com Sensores Rainbow-electronics MAX4981