EUM6862.pdf? Built in 24V Full-wave Motor Driver for Fan Motor
? Built in Kickback Voltage Protection, No Zener
Diode Need
? External Programmable Soft Start and Soft
Restart Function
? Wide Input Range 3V~28V
? PWM Fan Speed Control
? Programmable Minimum Fan Speed
? Built in Soft Switching Function
? Built in Hall Bias
? Lock Protection and Auto Restart
? Fan Rotation Speed Feedback FG Output
(EUM6862/B)
? Fan Rotation Detection RD Output
(EUM6862/A)
? Thermal Shutdown Protection
? Available in TSSOP-16 and TDFN-14 Packages
? RoHS Compliant and 100% Lead (Pb)-Free
Halogen-Free
? 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
