NBM7100A/B 是一款電池能量管理器件，旨在在需要突發(fā)電流負(fù)載的低電壓、低功耗應(yīng)用中最大限度地提高不可充電一次電池的可用容量。這些器件克服了與從鋰原電池（例如 3 V 鋰二氧化錳 (LiMnO2) 紐扣電池）提取高脈沖電流（圖 1）相關(guān)的壓降和電池壽命限制。常用于無(wú)線、低功耗物聯(lián)網(wǎng)傳感器應(yīng)用。NBM7100A/B 包含兩級(jí)高效 DC-DC 轉(zhuǎn)換和智能學(xué)習(xí)算法。第一級(jí) DC-DC 轉(zhuǎn)換以低恒定電流將能量從鋰電池傳輸?shù)诫娙荽鎯?chǔ)元件。充電后，第二個(gè) DC-DC 轉(zhuǎn)換周期利用存儲(chǔ)的能量在 VDH 輸出引腳上提供具有高脈沖負(fù)載電流能力的穩(wěn)壓電壓。電池永遠(yuǎn)不會(huì)直接承受大負(fù)載脈沖電流，從而產(chǎn)生更長(zhǎng)、更可預(yù)測(cè)的電池壽命

特性

• Programmable constant battery load current: 2 mA to 16 mA

• Protection against battery voltage dips (Brown-out)

• Pulse output current: > 200 mA

• Low ripple regulated programmable output voltage, VDH: 1.8 V to 3.6 V

• Ultra-low standby current: < 50 nA

• Peak conversion efficiency > 90% with adaptive optimization

• Integrated fuel gauge

• Small 16 pin lead-free package (SOT763-1?/?DHVQFN16; 2.5 mm × 3.5 mm × 0.85 mm)

• Specified from -40 °C to +85 °C

目標(biāo)應(yīng)用

• Battery powered wireless microcontroller applications (IoT): Bluetooth?, LoRaWAN?, Sigfox?, LTE-M, NB-IoT, Zigbee, etc.

• Industrial: temperature, occupancy, e-metering, electronic shelf label, asset tracking, irrigation monitoring

• Consumer/wearable: location tags, heart rate monitor, blood glucose meter, remote controls, key fobs