DRV3901-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C, TA
-
Functional Safety-Compliant
- Developed for functional safety applications
- Documentation to aid ISO26262 system design up to ASIL D
- Highly integrated squib driver solution targeted at automotive EV pyro-fuse application
- Integration of power supplies, current regulation, diagnostics, and safety functions
- SPI or HW pin-based triggering for flexible interface options and rapid firing reaction
- Diagnostic functions for system energy reservoir capacitor and squib health monitoring
- Built-in-self-test and diagnostic functions for power supplies, interfaces, drivers, and monitors
- Architecture for reliable operation with redundant power supplies, low-side and high-driver drivers, and secondary monitoring logic
- Up to 28-V (40-V abs. max) operating voltage
- Compact HVSSOP-28 (DGQ) leaded package
- Two-wire load interface with protected, current controlled high-side and protected secondary low-side switches
- Integrated charge pump for minimal MOSFET drop out voltage
- 4-wire, addressable, 24-bit SPI with CRC protection
- Allows multiple device to operate on the same SPI
- Allows for broadcast commands to multiple devices.
- Configurable deployment currents (1.2 A / 2 ms, 1.75 A / 0.5 ms, up to 3.4 A / 0.5 ms)
- Configurable deployment interface options
- 2-pin HW trigger with PWM or level signaling
- Protected SPI command with CRC
- Comprehensive off-state diagnostics
- Device built-in-self-test
- Driver output and switch test
- Interface test
- Energy reservoir capacitor test
- Squib resistance test
- Configurable fault indicator (nFAULT)
The DRV3901-Q1 is a highly integrated squib driver intended for automotive EV pyro-fuse applications. It includes the power supplies, current sensing and regulation, and diagnostics and protection functions needed to drive a squib load. It incorporates several key functions unique to the device that are different from traditional squib drivers. These functions include a hardware pin trigger interface, an energy reservoir capacitor diagnostic, an addressable SPI, and optimized driver stage with integrated charge pump and additional deployment current options.
The hardware pin trigger (TRGx) interface allows for a deployment command to be issued directly in hardware to the DRV3901-Q1. This allows the flexiblity to either trigger the deployment with MCU hardware pins, directly with an overcurrent sensor, or through other external hardware circuit monitors. The hardware trigger pins support a 2-pin interface with both threshold or PWM based options to ensure robustness against miss deployment while still providing flexiblity to support a variety of interface options. Additionally, CRC protected deployment commands can be sent through the SPI bus as a secondary method.
To support a diagnostic for the system energy reservoir capacitor, the DRV3901-Q1 integrates a switch and monitor circuit to be able to bias and monitor the discharge voltage of the reservoir capacitor. This enables the device and the external MCU to detect a loss/failure of the reservoir capacitor or its approximate value in normal operation.
An addressable SPI, allow multiple devices to be controlled on a shared SPI bus. In addition to reducing required MCU resources, the addressable SPI incorporates a broadcast command structure that allows multiple drivers to be coordinated to trigger simultaneously or with staggered delays. The SPI incorporate multiple robustness functions including a CRC, address readback capability, and various bus fault detection mechanisms.
The power stage utilizes a protected high-side and low-side switch to ensure robustness against unintended driving due to a variety of fault conditions. An integrated charge pump ensures minimal drop out voltage across the switches during deployment to enable operation down to low supply voltages. A wide variety of deployment options are available to optimize for different types of squib loads or for specific application requirements.
詳細リクエスト
NDA (秘密保持契約) 締結下で、FMEDA (故障モード、影響、および診断分析)、安全性分析レポート、安全性マニュアルなどの機能安全情報が入手可能です。リクエストする
技術資料
| 上位の文書 | タイプ | タイトル | フォーマットオプション | 最新の英語版をダウンロード | 日付 | |
|---|---|---|---|---|---|---|
| * | データシート | DRV3901-Q1 Single Channel Squib Driver For Automotive EV Pyro-Fuse データシート (Rev. A) | PDF | HTML | 2026/07/22 | ||
| 技術記事 | スクイブ ドライバとコンタクタドライバを活用し、HEV/EV のバッテリ 切断システムの安全性と効率を向上させる方法 (Rev. A 翻訳版) | PDF | HTML | 英語版 (Rev.A) | PDF | HTML | 2025/05/01 | |
| ホワイト・ペーパー | より安全で、よりスマートで、よりコネクテッドなバッテリ管理システムの設計 (Rev. A 翻訳版) | PDF | HTML | 英語版 (Rev.A) | PDF | HTML | 2025/04/03 | |
| 証明書 | DRV3901Q1EVM EU Declaration of Conformity (DoC) | PDF | HTML | 2023/09/27 |
設計と開発
その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。
DRV3901-Q1EVM — DRV3901-Q1 評価基板
DRV3901-Q1EVM-FW — DRV3901-Q1EVM firmware
DRV3901-Q1EVM-GUI — DRV3901-Q1EVM GUI
TIDA-020075 — 車載、高電圧バッテリ管理システム、2チャネル、パイロヒューズ ドライバ ボードのリファレンス デザイン
フル ハイブリッド (FHV)、プラグインハイブリッド車 (PHV)、バッテリ電気自動車 (BEV) の各バッテリ ジャンクション ボックスは、バッテリ パックを接続解除するコア機能を内蔵しており、過電流、永続的な損傷、または熱暴走からバッテリを保護します。このリファレンス デザインは、車載グレード、機能安全準拠のシングルまたはデュアル スクイブ ドライバのデザインを製作する方法を提示します。
ボードのサイズは 44mm × 130mm です。
| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| HVSSOP (DGQ) | 28 | Ultra Librarian |
購入と品質
推奨製品には、この TI 製品に関連するパラメータ、評価基板、またはリファレンス デザインが存在する可能性があります。