Product overview
Description
The L6228Q is a DMOS fully integrated stepper motor driver with non-dissipative overcurrent protection, realized in BCDmultipower 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 VFQFPN32 5 mm x 5 mm package, the L6228Q features a non-dissipative overcurrent protection on the high side power MOSFETs and thermal shutdown.
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All 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 @ 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 free wheeling diodes
Circuit Diagram
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STMicroelectronics - L6228Q
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L6228Q | Active | VFQFPN 32 5x5x1.0 mm | Industrial | Ecopack2 | |
| L6228QTR | Active | VFQFPN 32 5x5x1.0 mm | Industrial | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Order from distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| L6228Q | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tray | VFQFPN 32 5x5x1.0 mm | -40 | 150 | THAILAND | | ||
| L6228QTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | VFQFPN 32 5x5x1.0 mm | -40 | 150 | THAILAND | | ||
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors