L6228：DMOS driver for bipolar stepper motor
The L6228 device is a DMOS fully integrated stepper motor driver with non-dissipative overcurrent protection, realized in BCD technology, which combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. The device includes all the circuitry needed to drive a two phase bipolar stepper motor including: a dual DMOS full bridge, the constant off time PWM current controller that performs the chopping regulation and the phase sequence generator, that generates the stepping sequence. Available in PowerDIP24 (20 + 2 + 2), PowerSO36 and SO24 (20 + 2 + 2) packages, the L6228 device features a non-dissipative overcurrent protection on the high-side Power MOSFETs and thermal shutdown.
Key Features
- Operating supply voltage from 8 to 52 V
- 2.8 A output peak current (1.4 A RMS)
- RDS(ON)
0.73 Ω typ. value at Tj
= 25 °C
- Operating frequency up to 100 KHz
- Non-dissipative overcurrent protection
- Dual independent constant tOFF
PWM current controllers
- Fast/slow decay mode selection
- Fast decay quasi-synchronous rectification
- Decoding logic for stepper motor full and half step drive
- Cross conduction protection
- Thermal shutdown
- Undervoltage lockout
- Integrated fast freewheeling diodes
产品规格
应用手册
Design Notes & Tips
简报
选型指南
手册
解决方案评估工具
| 型号 | 制造商 | Description |
|---|
| EVAL6228QR | | L6228Q: Dual full bridge with PWM current control and translator for stepper reference design board |
样片和购买
| 型号 | Quantity | Unit Price (US$)
* | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| L6228PD | 1000 | 3.48 | PowerSO 36 | Tube | -40 | 150 | NEC | EAR99 | MALAYSIA |
| L6228D | 1000 | 3.346 | SO-24 | Tube | -40 | 150 | NEC | EAR99 | MALAYSIA |
| L6228N | 1000 | 3.346 | PDIP 24 .3 | Tube | -40 | 150 | NEC | EAR99 | MALAYSIA |
| L6228PDTR | 1000 | 3.48 | PowerSO 36 | Tape And Reel | -40 | 150 | NEC | EAR99 | MALAYSIA |
| L6228DTR | 1000 | 3.346 | SO-24 | Tape And Reel | -40 | 150 | NEC | EAR99 | MALAYSIA |
质量和可靠性
| 型号 | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| L6228PD | PowerSO 36 | Industrial | Ecopack2 (**) | |
| L6228D | SO-24 | Industrial | Ecopack1 | |
| L6228N | PDIP 24 .3 | Industrial | Ecopack1 | |
| L6228PDTR | PowerSO 36 | Industrial | Ecopack2 (**) | |
| L6228DTR | SO-24 | Industrial | Ecopack1 | |
