MAX9921AUB+T Maxim Integrated Products, MAX9921AUB+T Datasheet
MAX9921AUB+T
Specifications of MAX9921AUB+T
Related parts for MAX9921AUB+T
MAX9921AUB+T Summary of contents
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... Low-Power Shutdown, Controlled with OE and DIAG Inputs o Operates with ±2V Ground Shifts Between Hall ® Sensor and MAX9921 PART Applications MAX9921AUB+T MAX9921AUB/V+T + Denotes a lead(Pb)-free/RoHS-compliant package Tape and reel. /V denotes an automotive qualified part. Pin Configuration appears at end of data sheet. 0.1μ 63.4kΩ ...
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Dual, 2-Wire Hall-Effect Sensor Interface with Diagnostics ABSOLUTE MAXIMUM RATINGS 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 DIAG GND..................................................-0.3V to +6.0V OUT1, OUT2, ...
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Dual, 2-Wire Hall-Effect Sensor Interface DC ELECTRICAL CHARACTERISTICS (continued 13.6V 5V, IN1 = IN2 = no connection, R BAT DIAG OE to +125°C, unless otherwise noted. Typical values are at T PARAMETER SYMBOL ...
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Dual, 2-Wire Hall-Effect Sensor Interface with Diagnostics 14mA IN 1 7mA 0mA t DEL 5V OUT1 0V 5V OUT2 0V 5V ERR 0V 5V DIAG 0V Figure 1. Timing Diagram 4 _______________________________________________________________________________________ APPROX. 50mA SHORT CIRCUIT HALL SENSOR OPEN CIRCUIT ...
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Dual, 2-Wire Hall-Effect Sensor Interface P R 14mA IN_ 7mA 0mA 5V OUT_ 0V Figure 2. Hall Input Pulse Rejection _______________________________________________________________________________________ with Diagnostics Timing Diagrams (continued DEL DEL 5 ...
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Dual, 2-Wire Hall-Effect Sensor Interface with Diagnostics (V = 14V +25°C, unless otherwise noted.) BAT A BAT SUPPLY CURRENT vs OPERATING MODE BAT 1 -40°C A 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 ...
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Dual, 2-Wire Hall-Effect Sensor Interface (V = 14V +25°C, unless otherwise noted.) BAT A IN_ BLANKING TIME AT HALL SWITCH POWER-UP vs. TEMPERATURE 100 -40 -25 - ...
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Dual, 2-Wire Hall-Effect Sensor Interface with Diagnostics (V = 14V +25°C, unless otherwise noted.) BAT A V OVERVOLTAGE THRESHOLD BAT vs. TEMPERATURE 20.5 20.4 20.3 20.2 20.1 V FALLING, ERR GOES LOW BAT 20.0 19.9 19.8 19.7 V ...
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Dual, 2-Wire Hall-Effect Sensor Interface PIN NAME Battery Power Supply. Connect BAT to the positive supply through an external reverse-polarity diode. Bypass BAT 1 BAT to ground with a 0.1µF capacitor. Current-Setting Input. Connect a 63.4kΩ, 1% resistor (R 2 ...
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Dual, 2-Wire Hall-Effect Sensor Interface with Diagnostics Functional Diagram BAT ISET REF GENERATION, DIAGNOSTICS, AND OVERVOLTAGE DETECT IN1 FILTER IN2 FILTER GND Detailed Description The MAX9921 connects two 2-wire Hall-effect sensors to a low-voltage µP. This device supplies current through ...
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Dual, 2-Wire Hall-Effect Sensor Interface Table 2. Diagnostic Truth Table (Diagnostic Mode) INPUT OUTPUT ERR DIAG OUT1 ...
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Dual, 2-Wire Hall-Effect Sensor Interface with Diagnostics Hall Input Short-to-Ground The Hall input shorted-to-ground fault is effectively a latched condition if the input remains loaded by the Hall switch when the shorting condition is removed. The cur- rent required to ...
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Dual, 2-Wire Hall-Effect Sensor Interface 14V V 8V IN_ 0V 11.5mA I IN_ 0A Figure 5. Hall Input Re-Energized When Open Input is Reconnected to Hall Sensor Table 3. Summary of Fault Protection and Recovery FAULT CRITERION DESCRIPTION V < ...
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Dual, 2-Wire Hall-Effect Sensor Interface with Diagnostics Figure 6. 3-Wire Hall-Effect Switches Configured as 2-Wire Applications Information Hall-Effect Sensor Selection The MAX9921 is optimized for use with 2-wire Hall- effect switches or with 3-wire Hall-effect switches ...
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Dual, 2-Wire Hall-Effect Sensor Interface Pin Configuration TOP VIEW BAT 1 10 ISET 2 9 IN1 3 8 MAX9921 IN2 4 7 GND 5 6 µMAX ______________________________________________________________________________________ PROCESS: BiCMOS DIAG For the latest package outline information and land patterns, go ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products ...