NBM7100-Q100
Coin cell battery life booster with adaptive power optimization
The NBM7100A/B-Q100 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-Q100 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 |
|---|---|---|---|
NBM7100A-Q100 | I²C | Yes | ≥ 200 mA |
NBM7100B-Q100 | SPI | No | ≥ 200 mA |
Features and benefits
Automotive product qualification in accordance with AEC-Q100 (Grade 3)
Specified from -40 °C to +85 °C
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: 20 nA (typ)
Peak conversion efficiency up to 93% with adaptive optimization
Integrated fuel gauge
Small 16 pin lead-free package (SOT763-1/DHVQFN16; 2.5 mm × 3.5 mm × 0.85 mm) with side wettable flanks
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
Automotive: tire pressure monitors (TPMS), key fobs
Parametrics
| Type number | Product status | Storage element voltage | Boosting Factor | Supported storage element | Max storage cap voltage | Pulse ILOAD [max] (mA) | Package version | Package name |
|---|---|---|---|---|---|---|---|---|
| NBM7100ABQ-Q100 | Production | I²C | Yes | Not Supported | 11 | 200 | SOT763-1 | DHVQFN16 |
| NBM7100BBQ-Q100 | Production | SPI | No | Not Supported | 11 | 200 | SOT763-1 | DHVQFN16 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| NBM7100ABQ-Q100 | NBM7100ABQ-Q100X (935691316115) |
Active | M7100A |
DHVQFN16 (SOT763-1) |
SOT763-1 | SOT763-1_115 | |
| NBM7100BBQ-Q100 | NBM7100BBQ-Q100X (935691317115) |
Active | M7100B |
DHVQFN16 (SOT763-1) |
SOT763-1 | SOT763-1_115 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| NBM7100ABQ-Q100 | NBM7100ABQ-Q100X | NBM7100ABQ-Q100 |
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| NBM7100BBQ-Q100 | NBM7100BBQ-Q100X | NBM7100BBQ-Q100 |
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Documentation (6)
| File name | Title | Type | Date |
|---|---|---|---|
| NBM7100_Q100 | Coin cell battery life booster with adaptive power optimization | Data sheet | 2025-04-11 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| SOT763-1 | 3D model for products with SOT763-1 package | Design support | 2019-10-03 |
| 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 |
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
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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.