Datasheet > NBM7100ABQ

NBM7100ABQ

更新时间： 2024-11-08 15:18:47

品牌	Logo	应用领域
安世 - NEXPERIA		/
页数	文件大小	规格书
56页	1447K
描述
Coin cell battery life booster with adaptive power optimizationProduction

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中文翻译

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NBM7100ABQ 数据手册

NBM7100A; NBM7100B

Coin cell battery life booster with adaptive power

optimization

Rev. 1 — 29 June 2023

Product data sheet

1. General description

2. Features and benefits

•

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)

The NBM7100A/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 (Fig. 1) from lithium primary batteries such

as 3 V lithium manganese dioxide (LiMnO₂) coin cells.

which are commonly used in wireless, low-power IoT

sensor applications.

•

The NBM7100A/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.

•

Specified from -40 °C to +85 °C

3. Applications

•

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

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

I_LOAD

NBM7100A I²C

NBM7100B SPI

Yes

≥ 200 mA

C_STORE

LX1

LX2 CAP

VDHS

VDH

VBT

LOAD

TX/RX

100 mA

VDP

NBM7100A

SENSOR

SCL

SDA

Sleep

Temperature

Pressure

Flow

RF MCU

10 mA

RDY

ADR

START

Occupancy

etc...

TST

VSS

VSSP

1-100 µA

time (ms)

aaa-036448

aaa-036457

Fig. 2. Simplified Application

Fig. 1. IoT pulsed load profile

12 3 4 5 6 7...56

中文翻译

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