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Texas Instruments BQ76942 | Demoboard TIDA-010247
High-side N-MOSFET control (up to 32s) battery pack reference design with stacked battery monitor
Overview
| Topology | Battery Management System |
| Input voltage | 60-120 V |
| Output 1 | 60 V |
| IC revision | A |
Description
This reference design is a high-side, N-channel MOSFET control (up to 32s) battery pack, using the stacked BQ769x2 battery monitor family. This design monitors each cell voltage, pack current, cell and MOSFET temperature and protects the battery pack for secure safe use. The high-side N-channel MOSFET architecture and optimized driving circuits provide easy switch control. This reference design achieves low stand-by and ship-mode consumption and optimizes the current gaps between two groups. This reference design is for high-cell-count, high voltage and battery-pack applications.
Features
- 300-μA consumption in standby mode
- 10-µA consumption in ship mode
- ±5-mV voltage accuracy at 25°C without calibration
- Robust and programmable battery cell and system protection
- High-side N-channel MOSFETs and strong driving capability
Typical applications
- Other industrial battery pack (3-series–10-series), Non-military drones
- Vacuum cleaners, Cordless power tools and garden tools
- E-bike, e-scooter, and LEV
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | ISAT(A) | Size | Version | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(Ω) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 625 nm, Red | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]625 nm | Emitting ColorRed | Peak Wavelength [typ.]630 nm | Luminous Intensity [typ.]250 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | – | – | MountSMT | – | Size0603 | – | – | – | – | – | – | – | |||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | – | – | – | – | MountSMT | – | Size0603 | VersionSMT | Impedance @ 100 MHz600 Ω | Maximum Impedance720 Ω | Maximum Impedance200 MHz | Rated Current 2850 mA | DC Resistance0.45 Ω | TypeWide Band | ||||
 | WE-PD SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | – | – | – | – | – | – | – | Inductance68 µH | Performance Rated Current1.45 A | Saturation Current @ 30%1.18 A | DC Resistance240 mΩ | Self Resonant Frequency9 MHz | Operating Voltage120 V | MountSMT | Saturation Current0.95 A | Size7345 | VersionStandard | – | – | – | – | DC Resistance0.38 Ω | – | ||||
 | WE-MAPI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | – | – | – | – | – | – | – | Inductance1 µH | Performance Rated Current4.95 A | Saturation Current @ 30%5.95 A | DC Resistance39 mΩ | Self Resonant Frequency72 MHz | Operating Voltage80 V | MountSMT | Saturation Current4.5 A | Size3015 | VersionSMT | – | – | – | – | DC Resistance0.047 Ω | – |