Key facts
- Brand
- STMicroelectronics
- Model
- L9935
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-08
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STMicroelectronics L9935 Two-Phase Stepper Motor Driver Datasheet
The L9935 is a two-phase stepper motor driver circuit designed to drive bipolar stepper motors. It features 2x 1.1 A full bridge outputs with integrated chopping current regulation to minimize power dissipation during flyback. The device can be controlled via a serial interface (SPI) and includes comprehensive protection features such as short-circuit, open load, over-temperature pre-alarm, and error-flagging.
Read onlineSTMicroelectronics L9935 specifications
| Output current (average) | +1.2 A |
|---|---|
| Peak output current | +2.5 A |
| Max operating supply voltage | 24 V |
| Supply voltage range (DC) | -0.3 to 35 V |
Source: STMicroelectronics L9935 Two-Phase Stepper Motor Driver Datasheet
All STMicroelectronics L9935 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the maximum operating supply voltage for the L9935?
The maximum operating supply voltage is 24 V.
From: STMicroelectronics L9935 Two-Phase Stepper Motor Driver Datasheet
What is the typical standby consumption of the device?
The typical standby consumption is 40 pA.
From: STMicroelectronics L9935 Two-Phase Stepper Motor Driver Datasheet
What is the minimum duration for an open-load failure to be flagged?
A failure is flagged only if it lasts longer than 16 microseconds.
From: STMicroelectronics AN2378 L9935 Open-Load Detection Software Filter Algorithm Application Note
During which phase of operation does open-load detection occur?
Open-load detection is performed during flyback using fast decay.
From: STMicroelectronics AN2378 L9935 Open-Load Detection Software Filter Algorithm Application Note