Nexperia B.V. NBM7100A; NBM7100B - Coin cell battery life booster with adaptive power optimization NBM7100ABQX

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NBM7100A; NBM7100B - Coin cell battery life booster with adaptive power optimization - NBM7100ABQX - Nexperia B.V.
Nijmegen, Netherlands
NBM7100A; NBM7100B - Coin cell battery life booster with adaptive power optimization
NBM7100ABQX
NBM7100A; NBM7100B - Coin cell battery life booster with adaptive power optimization NBM7100ABQX
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 (Figure 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. 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. 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) Specified from -40 °C to +85 °C 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 Figure 1. Simplified Application

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 (Figure 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.

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.

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)
  • Specified from -40 °C to +85 °C

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

Figure 1. Simplified Application

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Technical Specifications

  Nexperia B.V.
Product Category Supervisory Circuits and Battery Monitor Chips
Product Number NBM7100ABQX
Product Name NBM7100A; NBM7100B - Coin cell battery life booster with adaptive power optimization
Type SOT763-1
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