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LB1867M

Features: • 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...

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SeekIC No. : 004391158 Detail

LB1867M: Features: • 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 dio...

LB1867M Data Sheet

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Part Number:
LB1867M
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• 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






Pinout

Connection Diagram




Specifications

Absolute maximum ratings
Vm min [V] -
Vm max [V] -
IO max [A] 1


Parameter
Symbol
Conditions
Ratings
Unit
Maximum input current
ICC max
t 20 ms
200
MA
Maximum current flowing into RD pin
VOUT max
Internal
V
Maximum output current
IOUT max
1.0
A
Maximum current flowing into RD pin
IRD max
10
MA
Maximum RD applied voltage
VRD max
30
V
Allowable power dissipation

Pd max

 *With specified substrate

800

 MW
Operating temperature

Topr

 30 to +80
°C
Storage temperature
Tstg
-55 to +150
°C





Description

The LB1867M is a 2-phase unipolar brushless motor driver. With only a few peripheral parts, lockup protection and automatic recovery can be implemented. The IC can be configured for 12V or 24V operation and a wide range of variations, from LOW speed to H-High speed and from 60 cm to 120 cm square using the same PCB. This makes it easy to design highly reliable fan motor installations.






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