Features: • Output protection Zener diode with variable withstand voltageZ1, Z2 pins open: VOLM = 57V (24V specification)Z1, Z2 pins shorted: VOLM = 32V (12V specification)External Zener diode connected across Z1 - VCC pins:support for fans with large drive current• External resistor a...
LB1868: Features: • Output protection Zener diode with variable withstand voltageZ1, Z2 pins open: VOLM = 57V (24V specification)Z1, Z2 pins shorted: VOLM = 32V (12V specification)External Zener diode...
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• Output protection Zener diode with variable withstand voltage
Z1, Z2 pins open: VOLM = 57V (24V specification)
Z1, Z2 pins shorted: VOLM = 32V (12V specification)
External Zener diode connected across Z1 - VCC pins:
support for fans with large drive current
• External resistor allows configuration for 12V or 24V.
• Direct Hall element connection possible (built-in Hall amplifier with hysteresis supports core without auxiliary electrode)
• Built-in output transistor with 1.0A output current (strengthened negative-current support for core without auxiliary electrode)
• Built-in rotation detection function: Low during rotation and High during stop
• Built-in lockup protection with automatic recovery
• Built-in thermal shutdown
Parameter | Symbol | Conditions | Ratings | Unit |
Maximum input current | ICC max | t20 ms | 200 | mA |
Maximum applied output voltage | VOUT max | Internal | V | |
Maximum output current | IOUT max | 1.0 | A | |
Current flowing into RD pin | IRD max | 1.0 | mA | |
RD applied voltage | VRD max | 30 | V | |
Allowable power dissipation | Pd max | 1.1 | W | |
Operating temperature | Topr | 30 to +80 | °C | |
Storage temperature | Tstg | 55 to +150 | °C |
Absolute maximum ratings | |
---|---|
Vm min [V] | - |
Vm max [V] | - |
IO max [A] | 1 |