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Product Overview
The BQ2204ASN from Texas Instruments is a nonvolatile SRAM controller designed to provide battery backup and power-fail protection for standard CMOS SRAMs. It integrates a precision voltage reference, power-fail comparator, and battery switchover circuitry in a compact 16-SOIC package. The device ensures data retention during power loss by automatically switching to a backup battery when the primary supply drops below a threshold. It supports both 5V and 3.3V SRAMs, making it versatile for various applications requiring reliable data storage.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5V to 5.5V (5V mode) / 3.0V to 3.6V (3.3V mode) |
| Backup Battery Voltage |
2.0V to 3.6V |
| Operating Temperature |
-40°C to +85°C |
| Package |
16-SOIC |
| Quiescent Current (VCC) |
1.5 mA (max) |
| Battery Backup Current |
1 µA (typ) |
| Power-Fail Detection Threshold |
4.5V (5V mode) / 2.9V (3.3V mode) |
| Output Drive |
TTL/CMOS compatible |
Key Features
- Automatic battery switchover on power loss
- Precision power-fail detection with hysteresis
- Low battery backup current (1 µA typical)
- Supports both 5V and 3.3V SRAMs
- Integrated battery freshness seal
- 16-pin SOIC package for space-constrained designs
- Industrial temperature range
Target Applications
- 5G base station control boards requiring nonvolatile memory for configuration data
- Automotive dashboard systems storing driver preferences and trip data
- Industrial PLCs retaining critical parameters during power outages
- Medical devices like patient monitors preserving alarm settings
- Smart meters storing consumption data
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
BQ2204ASN. Our core advantages include:
-
24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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BOM Kitting & Sampling Services: Specialized sourcing for
testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
BQ2204ASN 是德州儀器推出的一款非易失性 SRAM 控制器,專為標準 CMOS SRAM 提供電池備份和掉電保護而設計。它集成了精密電壓基準、掉電比較器和電池切換電路,採用緊湊的 16-SOIC 封裝。當主電源降至閾值以下時,器件會自動切換到備用電池,確保數據在斷電期間得以保留。它支持 5V 和 3.3V SRAM,適用於需要可靠數據存儲的多種應用。
詳細技術參數
| 參數 |
數值 |
| 供電電壓 (VCC) |
4.5V 至 5.5V (5V 模式) / 3.0V 至 3.6V (3.3V 模式) |
| 備用電池電壓 |
2.0V 至 3.6V |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
16-SOIC |
| 靜態電流 (VCC) |
1.5 mA (最大值) |
| 電池備份電流 |
1 µA (典型值) |
| 掉電檢測閾值 |
4.5V (5V 模式) / 2.9V (3.3V 模式) |
| 輸出驅動 |
TTL/CMOS 兼容 |
核心特性
- 掉電時自動切換至電池
- 帶滯回的精密掉電檢測
- 低電池備份電流 (典型值 1 µA)
- 支持 5V 和 3.3V SRAM
- 集成電池新鮮度密封
- 16 引腳 SOIC 封裝,節省空間
- 工業級溫度範圍
典型應用場景
- 5G 基站控制板,用於存儲配置數據的非易失性存儲
- 汽車儀表盤系統,保存駕駛員偏好和行程數據
- 工業 PLC,在斷電時保留關鍵參數
- 醫療設備如病人監護儀,保留報警設置
- 智能電錶,存儲用電數據
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 BQ2204ASN 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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全天候環球客戶支援:專業團隊為您提供即時報價及技術支援,無需漫長等待。
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