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Texas Instruments TIDA-010208
10s-16s battery pack reference design with accurate cell measurement and high-side MOSFET control
Overview
| Topology | Flyback Converter |
| Input voltage | 2.5-24 V |
| Output 1 | 5 V |
| IC revision | E1 |
Description
This reference design is a low standby and ship-mode current consumption and high cell voltage accuracy 10s–16s Lithium-ion (Li-ion), LiFePO4 battery pack design. It monitors each cell voltage, pack current, cell and MOSFET temperature with high accuracy and protects the Li-ion, LiFePO4 battery pack against cell overvoltage, cell undervoltage, overtemperature, charge and discharge over current and discharge short-circuit situations. It adopts high-side N-channel MOSFET architecture and has strong driving on and off capability. Through an efficient auxiliary power supply strategy, this reference design achieves 100-μA standby and 10-μA ship mode consumption, saving more energy and allowing longer shipping time and idle time. These features make this reference design highly applicable for e-bike and e-scooter battery pack applications.
Features
- Ultra-low current consumption:
- typical 100-μA when in standby mode
- typical 10-μA when in shipping mode
- High cell voltage accuracy without calibrations:
- ±5 mV at 25°C; ±10 mV at 0°C–60°C; ±15 mV at –40°C to 85°C
- Robust battery cell protection, including:
- Primary: cell overvoltage, cell undervoltage, two levels overcurrent discharge, overcurrent charge, discharge short circuit and overtemperature
- Secondary: cell over voltage, cell undervoltage and overtemperature
- Other system protections, including: cell open wire and thermal host watchdog
- Reverse charger and high voltage on PACK side
- High-side N-channel MOSFETs and strong driving capability
Typical applications
- Battery pack with protection, gauge & external communication, Battery pack: e-bike/e-scooter/light electric vehicle.(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 | – |