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LB11961

Features: • Single-phase full-wave drive (16V, 1.0A transistors are built in)• Built-in variable speed function controlled by a thermistor inputThe LB11961 can implement quiet, low-vibration variable speed control using externally clocked high side transistordirect PWM drive.• Bu...

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SeekIC No. : 004390975 Detail

LB11961: Features: • Single-phase full-wave drive (16V, 1.0A transistors are built in)• Built-in variable speed function controlled by a thermistor inputThe LB11961 can implement quiet, low-vibra...

LB11961 Data Sheet

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Part Number:
LB11961
Supply Ability:
5000

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

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Product Details

Description



Features:

• Single-phase full-wave drive (16V, 1.0A transistors are built in)
• Built-in variable speed function controlled by a thermistor input
The LB11961 can implement quiet, low-vibration variable speed control using externally clocked high side transistor
direct PWM drive.
• Built-in regenerative diode (Di); only requires a minimal number of external components.
• Built-in HB
• Minimum speed setting pin (allows full-speed mode operation at startup)
• Operates in full-speed mode when the thermistor is removed.
• Built-in lock protection and automatic recovery circuits
• FG (speed detection) and RD (lock detection) outputs
• Built-in thermal shutdown circuit




Specifications

Absolute maximum ratings
Vm min [V] 4.5
Vm max [V] 16
IO max [A] 1


Parameter Symbol Conditions Ratings Unit
VCC maximum output voltage VCC max 18 V
OUT pin maximum output
current		 IOUT max 1.0 A
OUT pin output voltage VOUT max 18 V
HB maximum output current IHB max 10 mA
VTH input pin voltage VTH max 6 V
RD/FG output pin output voltage VRD/FG max 18 V
RD/FG output current IRD/FGmax 10 mA
Allowable power dissipation Pd max When mounted on a circuit board *1 1.1 W
Operating temperature Topr -30 to +90 °C
Storage temperature Tstg -55 to +150 °C
*1 Specified circuit board : 114.3 × 76.1 × 1.6mm3, glass epoxy.




Description

The LB11961 is a single-phase bipolar drive motor driver that easily implements direct PWM motor drive systems with
excellent efficiency. The LB11961 is optimal for fan motor drive in personal computer power supply systems and CPU
cooling fan systems






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