LB1861M: Two-Phase Half-Wave Variable Speed Fan Motor Driver
The LB1860 series ICs are driver IC for two-phase unipolar drive DC brushless fan motors. They have functions such as driving, lock protection, restart and speed control.
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 lock protection and automatic return circuit built in
- Output transistors: Output current IO = 1.5 A, output circuit protection Zener diodes
- 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
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Data Sheets (1)
Package Drawings (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| LB1861M-MPB-E | Last Shipments | Pb-free
Halide free | SOIC-14W / MFP-14S | 751CB | 3 | Fan-Fold | 60 | |
| LB1861M-MPB-H | Last Shipments | Pb-free
Halide free | SOIC-14W / MFP-14S | 751CB | 3 | Fan-Fold | 60 | |
| LB1861M-TLM-E | Active, Not Rec | Pb-free
Halide free | SOIC-14W / MFP-14S | 751CB | 3 | Tape and Reel | 1000 | $0.98 |
| LB1861M-TLM-H | Active | Pb-free
Halide free | SOIC-14W / MFP-14S | 751CB | 3 | Tape and Reel | 1000 | $0.98 |
Specifications
| Product | Phase | VM Min (V) | VM Max (V) | VCC Min (V) | VCC Max (V) | IO Max (A) | IO Peak Max (A) | Control Type | Current Sense | Regulator Output | Fault Detection |
|---|
| LB1861M-TLM-H | 2 | | | | | 1.5 | | DC | None | | Thermal |
