MAX20481
Four- to Seven-Input Automotive Power-System Monitor Family
業界唯一の車載認定、ASIL-B電源システムモニタ、ウィンドウウォッチドッグ内蔵
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主な特長
アプリケーション/用途
| Reset Out | Open Drain |
| tRESET (min) | Adjustable |
| Watchdog Feature | Input (WDI) |
| Supervisor Features | Overvoltage/Window Monitor |
| Package/Pins | TQFN/16 |
| Budgetary Price (See Notes) | 1.5 |
簡易ブロック図
Technical Docs
| データシート | Four- to Seven-Input Automotive Power-System Monitor Family | Jan 28, 2022 |
パラメーター
| Reset Out | Open Drain |
| tRESET (min) | Adjustable |
| Watchdog Feature | Input (WDI) |
| Supervisor Features | Overvoltage/Window Monitor |
| Package/Pins | TQFN/16 |
| Budgetary Price (See Notes) | 1.5 |
主な特長
- Small Solution
- 2.35V to 5.50V Operating Supply Voltage
- No External Component Required
- 150µA Operating Current
- High Precision
- Selectable 102.5% to 110% OV Monitors
- Selectable 97.5% to 90% UV Monitors
- ±1% Accuracy
- 0.5% Step Size
- ASIL B Compliance
- Highly Integrated
- Five Fixed-Voltage Monitoring Inputs
- Two Differential DVS Tracking-Voltage Monitoring Inputs with Remote-Ground Sense
- Windowed Watchdog with Disable Pin for SoC Programming
- Error-Correcting Code (ECC) on Internal OTP
- Factory-Programmable Active-Low RESET Pin
- 16-Pin Side-Wettable TQFN with Exposed Pad (3mm x 3mm)
- AEC-Q100 Qualified
- -40°C to +125°C Operating Temperature
アプリケーション/用途
- 車載ADASシステム
- 自動運転処理システム
- 電源システム監視およびMCU/SoC監視
- リモートセンサーモジュール
説明
The MAX20481 is a complete ASIL-compliant SoC power system monitor with up to seven voltage-monitor inputs. Each input has factory OTP programmable OV/UV thresholds of between 2.5% and 10% with ±1% accuracy. Two of the inputs have a separate remote ground-sense input for use with high-current SoC supplies.
The MAX20481 contains a factory-programmable windowed watchdog with digital input pins for both refreshing and disabling the watchdog. The active-low RESET pin of the device can be set at the factory to assert under a variety of conditions.
The MAX20481 significantly reduces system size and component count while improving reliability compared to separate ICs or discrete components. The MAX20481 meets ASIL B reliability levels in a standalone application. The device is designed to operate from -40°C to +125°C ambient temperature.
Technical Docs
| データシート | Four- to Seven-Input Automotive Power-System Monitor Family | Jan 28, 2022 |
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