PREVIEW
SX68141M

Package : SOP36
RoHS : YES
The SX68141M is a high voltage 3-phase motor drivers, which are driven by a sinusoidal control and suitable for 8- and 10-pole motor systems. Whereas a typical 10-pole DC motor outputs a rotation signal of 15 pulses, the IC can output a 12-pulse rotation signal which is equivalent to an 8-pole motor. This enables your application to use an existing 8-pole DC motor system for 10-pole DC motor driving with no change. The IC supports Hall elements and Hall IC inputs. In addition, with its sensorless-controlled sine-wave driving system at startup, the IC offers suppressed audible noise, such as in a spoke motor startup operation. Supplied in a thin SOP36 package, where a controller, a gate driver, the output transistors of three phases, and bootstrap diodes are highly integrated, the SX6814xM series requires only a few external components for building a motor driver. This also allows a motor driver to be highly reliable in performance and design-friendly with its compactness.
Data Download
Design Support
- Technical Documents
- Tools / Models
Technical Documents
Tools / Models
Features
- Pb-free (RoHS Compliant)
- Low Noise, High Efficiency (Sinusoidal Current Waveform)
- Suppressed Audible Noise at Startup and Stop
- Reduced Number of Parts Achieved by Built-in Bootstrap Diodes with Current-limiting Resistors
- Hall Element and Hall IC Inputs
- Selectable Rotation Pulse Signal FG Output(0.8 ppr, 1.0 ppr, 2.4 ppr, 3.0 ppr)
- Application-specific Optimal Settings with External Signals:– Rotation Speed– Phase Adavance Angle– Rotation Direction– Enabling/Disabling of Motor Lock Detection
- Various Phase Advance Settings
(External Phase Advance; Internal Phase Advance with Linear to Cubic Function Operations) - 3.3 V Reference Voltage Output(Used for Driving Hall Elements etc.)
- Standby Function
- Adjustable Oscillation Freuqnecy (OSCR Pin)
- Thermal Shutdown (TSD)
- Protections Include:– VREG Pin Undervoltage Lockout (UVLO_VREG)– Undervoltage Lockout for Power Supplies VBx Pin (UVLO_VB) VCC1 Pin (UVLO_VCC)– Overcurrent Limit (OCL)– Overcurrent Protection (OCP)– Motor Lock Protection (MLP)– Reverse Rotation Detection– Hall Signal Abnormality Detection
Application
For motor drives such as:- Fan Motor for Air Conditioner
- Fan Motor for Air Purifier and Electric Fan
Specifications
| Type | Power IC |
|---|---|
| Breakdown Voltage | 250 V |
| Output Current | 2.0 A |
|
RDS(ON) max./ VCE(SAT) typ. |
1.5Ω |
| Output Element | MOSFET |
| Input Threshold | ― V |
| UVLO | YES |
| Overcurrent (OCP or OCL) | OCP/OCL |
| Temperature Detection | Thermal Shutdown |
| Fault Signal Output | YES |
| 3 Shunt Support | NO |
| Bootstrap Diode | |
| Simultaneous On-state Protection | NO |
| Reg Output | YES |
| Package Weight (Typ.) | 1.4 g |
| Automotive Qualified | NO |
Remarks
| VDSS | IO | RDS(ON) (max.) | Part Number |
|---|---|---|---|
| 250V | 2.0A | 1.5Ω | SX68141M |
| 600V | 1.0A | 6.0Ω | SX68140M |
| 1.5A | 3.6Ω | SX68144M | |
| 2.0A | 2.5Ω | SX68145M |
Typical Application

Block Diagram

Pin Configuration Definitions

Physical Dimensions

Questions or Comments?
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