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The L99SM81V is an automotive grade integrated driver for bipolar two-phase stepper motors capable of current controlled micro-stepping with programmable amplitude. The device features a 5 V voltage regulator to supply external sensors.
The integrated Serial Peripheral Interface (SPI) makes it possible to adjust device parameters, control all operating modes and read out diagnostic information. Digital I/Os are also optionally usable for more flexible and reliable application control.
主な特徴
- AEC-Q100 qualified
- Stepper motor driver with up to 1.35 A current capability
- Programmable stepping mode:
- Full step, Half step, Mini step, 1/8 Micro step, 1/16 Micro step
- Current regulation by integrated PWM control with fully integrated current sensing
- Equivalent 10 bit resolution on current regulation loop:
- Two 4-bit programmable full scale current amplitudes: one for RUN and one for HOLD mode
- 6-bit DAC for reference current generation (whatever programmed full scale amplitude)
- 4 programmable decay modes:
- Slow-mode, mixed-mode and 2x automatically selected decay-modes
- 3x programmable inputs for direct control of step clock, direction, hold and step modes
- 1x programmable analog output for Tj measurement or band-gap reference
- 2x programmable digital outputs for internally generated PWM ON duty cycles, error signals, coils voltage measurement synchronization signals
- Programmable MOSFETs switching speed: four options for EMC and power dissipation trade-off optimization
- PWM frequency wobbling for reduction of conducted EM energy
- Outputs protection and diagnosis (open load, short to battery, short to GND)
- Integrated ADC for coil voltage measurement and stall detection
- 5 V low drop voltage regulator short-circuit protected
- Very low current consumption in standby mode (typ. 10 µA)
- Thermal warning and shutdown
- ST SPI 4.0 interface for control and diagnostics
サンプル & 購入
| 製品型番 | パッケージ | 梱包タイプ | 温度（℃） | 製品ステータス | 概算価格（USS） | Quantity | ECCN (US) | Country of Origin | 詳細情報 | 販売代理店からオーダー | STからオーダー | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| L99SM81VY | PowerSSO 36 | Tube | - | - | NRND | - | - | EAR99 | - | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください | ||
| L99SM81VYTR | PowerSSO 36 | Tape And Reel | - | - | Active | 1.9592 | 1000 | EAR99 | - | 在庫チェック | ||
| L99SM81VQ6TR | VFQFPN 6X6 | Tape And Reel | - | - | Active | 1.9175 | 1000 | EAR99 | MALAYSIA | 在庫チェック | 購入 | |
| L99SM81VQ6 | VFQFPN 6X6 | Tray | - | - | Active | - | - | EAR99 | - | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください | ||
L99SM81VY
パッケージ
PowerSSO 36梱包タイプ
TubeUnit Price (US$)
*L99SM81VYTR
パッケージ
PowerSSO 36梱包タイプ
Tape And ReelUnit Price (US$)
1.9592*L99SM81VQ6
パッケージ
VFQFPN 6X6梱包タイプ
TrayUnit Price (US$)
*(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
評価ツール
| 製品型番 | 製品ステータス | パッケージ | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|
| L99SM81VQ6 | Active | VFQFPN 6X6 | Automotive | Ecopack2 | |
| L99SM81VQ6TR | Active | VFQFPN 6X6 | Automotive | Ecopack2 | |
| L99SM81VY | NRND | PowerSSO 36 | Automotive | Ecopack2 | |
| L99SM81VYTR | Active | PowerSSO 36 | Automotive | Ecopack2 |
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
