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.
Type number | Bus interface | Auto start | Pulse ILOAD |
---|---|---|---|
NBM5100A | I²C | Yes | ≥ 150 mA |
NBM5100B | SPI | No | ≥ 150 mA |
Features and benefits
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: 20 nA (typ)
Peak conversion efficiency up to 93% 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
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
Parametrics
Type number | Product status | Storage element voltage | Boosting Factor | Supported storage element | Supported harvester | Pulse ILOAD [max] (mA) | Package version | Package name |
---|---|---|---|---|---|---|---|---|
NBM5100ABQ | Production | I²C | Yes | Supported | 5.5 | 150 | SOT763-1 | DHVQFN16 |
NBM5100BBQ | Production | SPI | No | Supported | 5.5 | 150 | SOT763-1 | DHVQFN16 |
Package
Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
---|---|---|---|---|---|---|---|
NBM5100ABQ | NBM5100ABQX (935691193115) |
Active | M5100A |
DHVQFN16 (SOT763-1) |
SOT763-1 | SOT763-1_115 | |
NBM5100BBQ | NBM5100BBQX (935691194115) |
Active | M5100B |
DHVQFN16 (SOT763-1) |
SOT763-1 | SOT763-1_115 |
Environmental information
Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
---|---|---|---|---|
NBM5100ABQ | NBM5100ABQX | NBM5100ABQ | ||
NBM5100BBQ | NBM5100BBQX | NBM5100BBQ |
Documentation (8)
File name | Title | Type | Date |
---|---|---|---|
NBM5100 | Coin cell battery life booster with adaptive power optimization | Data sheet | 2024-08-06 |
SOT763-1 | 3D model for products with SOT763-1 package | Design support | 2019-10-03 |
nexperia_document_leaflet_battery_life_booster_NBM5100_NBM7100 | Coin cell battery life booster | Leaflet | 2023-06-22 |
Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
DHVQFN16_SOT763-1_mk | plastic, 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 body | Marcom graphics | 2017-01-28 |
SOT763-1 | plastic, 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 body | Package information | 2023-05-11 |
NBM5100_NBM7100_GUI_bert_v_1_9 | GUI for NBM5100 NBM7100 evaluation board | Software | 2023-10-27 |
UM90022 | NBM5100; NBM7100 Evaluation board module | User manual | 2023-07-11 |
Support
If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.
Models
File name | Title | Type | Date |
---|---|---|---|
SOT763-1 | 3D model for products with SOT763-1 package | Design support | 2019-10-03 |
Ordering, pricing & availability
Sample
As a Nexperia customer you can order samples via our sales organization.
If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.