LB1861

Features: `Two-speed mode select function requiring less external component additions: Full speed and Low Speed.Or,thermistor-controlled continuous variable-speed function according to ambient operation temperatures. Motor starts rotating at a low speed. `Motor lock protection and automatic return...

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LB1861 Picture
SeekIC No. : 004391153 Detail

LB1861: Features: `Two-speed mode select function requiring less external component additions: Full speed and Low Speed.Or,thermistor-controlled continuous variable-speed function according to ambient opera...

floor Price/Ceiling Price

Part Number:
LB1861
Supply Ability:
5000

Price Break

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

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Upload time: 2024/10/27

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Product Details

Description



Features:

`Two-speed mode select function requiring less external component additions: Full speed and Low Speed.Or,thermistor-controlled continuous variable-speed function according to ambient operation temperatures.
Motor starts rotating at a low speed.
`Motor lock protection and automatic return circuit built in
`Output transistors: Output current IO = 1.5 A, output circuit protection Zener diodes (LB1860: M-Vz = 57 V/ LB1861:
M-Vz = 32 V)
Enables low-level noise protection with chip capacitor.
`Built-in thermal shutdown circuit
`Built-in rotation detect function
. (Drive mode: ''L'', Stop mode: ''H')
`The LB1860 series can be operated from either 12 V or 24 V power supply by changing an external resistor. (Strong protection against power supply surge)
` Connectable direct to a Hall element






Pinout






Specifications

Parameter
Symbol
Conditions
Ratings
Unit
Maximum input current
ICC max
t 20 ms
200
mA
Output supply voltage
VOUT
Internal
V
Output current
IOUT
1.5
A
RD flow-in current
IRD
10
mA
RD supply voltage
VRD
50
V
Allowable power dissipation
Pd1 max
Mounted on 20 * 15 * 1.5 mm glass epoxy board
1.
W
Pd2 max
(0.8)
W
Operating temperature
Topr
-30to+80
°C
Storage temperature
Tstg
-55to+125
°C





Description

The LB1861 series ICs are drivers for two-phase unipolar drive DC brushless fan motors. They have functions such as driving,lock protection, restart and speed control.




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