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    NBM5100

    Coin cell battery life booster with adaptive power optimization

    The NBM5100A/B is a battery energy management device designed to maximize usable capacity from non-rechargeable, primary batteries when used in low-voltage, low-power applications requiring burst current loads. The devices overcome voltage drop and battery life limitations associated with extracting high pulse currents (Figure 1) from lithium primary batteries such as 3.6 V lithium thionyl chloride (Li-SOCl2), which are commonly used in wireless, low-power IoT sensor applications.

    The NBM5100A/B contains two stages of high efficiency DC-DC conversion and an intelligent learning algorithm. The first stage DC-DC conversion transfers energy from the lithium battery at a low constant current to a capacitive storage element. Once charged, a second DC-DC conversion cycle utilizes this stored energy to supply a regulated voltage with high pulse load current capability on the VDH output pin. The battery is never directly subjected to large load pulse currents, resulting in a longer, more predictable battery lifetime.

    The proprietary learning algorithm monitors the energy used during repetitive load pulse cycles and optimizes first stage DC-DC conversion to minimize the residual charge in the storage capacitor.

    A serial interface allows a microcontroller to change default configuration settings and read-back system information.

    Table 1. Related devices

    Type number

    Bus interface

    Auto

    start

    Pulse

    ILOAD

    NBM5100A

    I²C

    Yes

    ≥ 150 mA

    NBM5100B

    SPI

    No

    ≥ 150 mA

    Figure 1. IoT pulsed load profile

    特性

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

    • Protection against battery voltage dips (Brown-out)

    • Pulse output current: > 150 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

    • Integrated capacitor voltage balancing circuit

    • 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

    目标应用

    • 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: locations tags, heart rate monitor, blood glucose meter, remote controls, key fobs

    Figure 1. Simplified Application

    参数类型

    Type numberProduct statusBus interfaceAuto startStorage cap charge balance functionMax storage cap voltage (V)Pulse ILOAD [max] (mA)Package versionPackage name
    NBM5100ABQProductionI²CYesSupported5.5150SOT763-1DHVQFN16
    NBM5100BBQProductionSPINoSupported5.5150SOT763-1DHVQFN16

    封装

    型号封装尺寸版本回流焊/波峰焊包装状态标示可订购的器件编号,(订购码(12NC))
    NBM5100ABQ
    DHVQFN16
    (SOT763-1)
    SOT763-1SOT763-1_115ActiveM5100ANBM5100ABQX
    ( 9356 911 93115 )
    NBM5100BBQ
    DHVQFN16
    (SOT763-1)
    SOT763-1SOT763-1_115ActiveM5100BNBM5100BBQX
    ( 9356 911 94115 )

    环境信息

    型号可订购的器件编号化学成分RoHSRHF指示符无铅转换日期
    NBM5100ABQNBM5100ABQXNBM5100ABQ
    NBM5100BBQNBM5100BBQXNBM5100BBQ
    品质及可靠性免责声明

    文档 (6)

    文件名称标题类型日期
    NBM5100Coin cell battery life booster with adaptive power optimizationData sheet2023-06-29
    nexperia_document_leaflet_battery_life_booster_NBM5100_NBM7100Coin cell battery life boosterLeaflet2023-06-22
    DHVQFN16_SOT763-1_mkplastic, dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 0.85 mm bodyMarcom graphics2017-01-28
    NBM5100_NBM7100_GUI_bert_v_1_9GUI for NBM5100 NBM7100 evalsuation boardSoftware2023-10-27
    UM90022NBM5100; NBM7100 evalsuation board moduleUser manual2023-07-11
    SOT763-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm bodyPackage information2023-05-11

    支持

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    订购、定价与供货

    样品

    安世半导体客户可通过我们的销售机构或直接通过在线样品商店订购样品: https://extranet.nexperia.com.

    样品订单通常需要2-4天寄送时间。

    如果您尚未取得安世半导体的直接采购帐号,我们的全球与区域经销网络可以协助您取得样品

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