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The L6474 device, realized in analog mixed signal technology, integrates a dual low RDS(on)DMOS full bridge with all power switches equipped with an accurate on-chip current sensing circuitry suitable for non-dissipative current control and overcurrent protections. Thanks to a new current control, a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations.
All data registers, including those used to set analogue values (i.e.: current control value, current protection trip point, deadtime, etc.) are sent through a standard 5 Mbit/s SPI.
A very rich set of protections (thermal, low bus voltage, overcurrent) makes the L6474 device “bullet proof” as required by the most demanding motor control applications.主な特徴
- Operating voltage: 8 - 45 V
- 7.0 A output peak current (3.0 Ar.m.s.)
- Low RDS(on)power MOSFETs
- Programmable power MOS slew rate
- Up to 1/16 microstepping
- Current control with adaptive decay
- Non-dissipative current sensing
- SPI interface
- Low quiescent and standby currents
- Programmable non-dissipative overcurrent protection on all power MOS
- Two-level overtemperature protection
サンプル & 購入
| 製品型番 | 製品ステータス | 数量 | 概算価格（USS） | パッケージ | 梱包タイプ | 温度（℃） | ECCN (US) | Country of Origin | 詳細 | 販売代理店からオーダー | STからオーダー | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小値 | max | |||||||||||
| L6474H |
アクティブ
|
1000 | 2.221 | HTSSOP28 | Tube | -40 | 150 | EAR99 | MALAYSIA | 在庫チェック | 購入 | |
| L6474PDTR |
アクティブ
|
1000 | 2.53 | PowerSO 36 | Tape And Reel | -40 | 150 | EAR99 | ITALY | 在庫チェック | サンプル入手 | |
| L6474HTR |
アクティブ
|
1000 | 2.221 | HTSSOP28 | Tape And Reel | -40 | 150 | EAR99 | MALAYSIA | 在庫チェック | 購入 | |
| L6474PD |
アクティブ
|
1000 | 2.53 | PowerSO 36 | Tube | -40 | 150 | EAR99 | ITALY | 在庫チェック | 購入 | |
(*) 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
ビデオ
開発ツール･ハードウェア
開発環境
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写真 品名 製造元 Description 
X-NUCLEO-IHM01A1 ST Stepper motor driver expansion board based on L6474 for STM32 Nucleo 製品型番Stepper motor driver expansion board based on L6474 for STM32 Nucleo
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ソフトウェア製品
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写真 品名 製造元 Description 
X-CUBE-SPN1 ST Stepper motor driver software expansion for STM32Cube 製品型番Stepper motor driver software expansion for STM32Cube
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評価ツール
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写真 品名 製造元 Description 
EVAL6474H -- Stepper motor driver mounting the L6474 
STEVAL-3DP001V1 ST Evaluation board for 3D printer 製品型番Stepper motor driver mounting the L6474
Evaluation board for 3D printer
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| 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** |
|---|---|---|---|---|---|
| L6474H |
アクティブ
|
HTSSOP28 | インダストリアル | Ecopack2 | |
| L6474HTR |
アクティブ
|
HTSSOP28 | インダストリアル | Ecopack2 | |
| L6474PD |
アクティブ
|
PowerSO 36 | インダストリアル | Ecopack1 (*) | |
| L6474PDTR |
アクティブ
|
PowerSO 36 | インダストリアル | Ecopack1 (*) |
(**) 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.
