Rainbow-electronics MAX9921 Bedienungsanleitung PDF herunterladen (Seite 2)

MAX9921

Dual, 2-Wire Hall-Effect Sensor Interface

with Diagnostics

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

BAT

= 13.6V, V

DIAG

= 0V, V

= 5V, IN1 = IN2 = no connection, R

ISET

= 63.4kΩ, R

= 10kΩ at ERR, OUT1 and OUT2, T

= -40°C

to +125°C, unless otherwise noted. Typical values are at T

= +25°C.) (Note 1)

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.

BAT to GND............................................................-0.3V to +60V

ISET to BAT ...........................................................-2.0V to +0.3V

IN1, IN2 to GND..........-5.0V to the lower of +60V or (V

BAT

+ 1V)

DIAG, OE to GND..................................................-0.3V to +6.0V

OUT1, OUT2, ERR to GND....................................-0.3V to +6.0V

Short-Circuit Duration of OUT1, OUT2, ERR to GND

or to 5.5V (individually)............................................Continuous

Current into Any Pin Except IN1, IN2 ...............................±20mA

Current into IN1, IN2.......................................................±100mA

Continuous Power Dissipation (T

= +70°C)

10-Pin µMAX (derate 5.6mW/°C above +70°C) .........444.4mW

Operating Temperature Range .........................-40°C to +125°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

GENERAL

BAT Supply Range V

BAT

618V

BAT

Low for ERR Output Active V

5.2 V

BAT

High for ERR Output Active V

22 V

BAT

Normal mode 1 1.3 mA

BAT Supply Current

Shutdown mode, V

= V

DIAG

= 0V 1 µA

HALL INPUTS (IN1 and IN2)

Input Current for Output High I

-11.5 mA

Input Current for Output Low I

-7.2 mA

Input Current Hysteresis for

High/Low Detection

IN,HYS

0.76 mA

Input Pullup Impedance R

BAT

= 6V, inputs IN1, IN2 with

= -14mA

50 Ω

Input Voltage Interpreted as

Shorted to Battery

Measured with respect to V

BAT

100 mV

Current Range Interpreted as

Open Circuit

-2 +0.02 mA

Current Level Interpreted as

Shorted Sensor to Ground

Not a sustained condition, reverts to -50µA

when detected

-23 mA

1 2 3 4 5 6 7 ... 14 15

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