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Texas Instruments LM5164 | Demoboard TIDA-010030
Accurate gauging and 50-µA standby current, 13S, 48-V Li-Ion battery pack reference design
Overview
| Topology | Buck Converter |
| Input voltage | 48-55 V |
| Switching frequency | 1000 kHz |
| Output 1 | 6 V |
| IC revision | A |
Description
This reference design is a low standby and ship mode current consumption and high SOC gauging accuracy 13S, 48-V Li-ion battery pack design. It monitors each cell voltage, pack current and temperature with high accuracy and protects the Li-ion battery pack against overvoltage, undervoltage, over temperature and over current situations. The SOC gauging, based on bq34z100-g1, takes advantage of an impedance tracking algorithm and achieves as high as 2% accuracy at room temperature. Through a well-designed auxiliary power supply strategy and high efficiency, low quiescent current DC-DC converter LM5164, this design achieves 50-μA stand-by and 5-μA ship mode consumption, saving more energy and allowing longer shipping time and idle time. Also, this design supports a well running firmware, which helps to decrease product research time.
Features
- 2% battery pack SOC accuracy at room temperature
- 50-μA current consumption when in standby mode
- 15-μA current consumption when in shipping mode
- Robust and programmable protection, including: cell over voltage, cell under voltage, overcurrent discharge, short circuit, overtemperature and undertemperature
- Support 100-mA cell balancing
- High-side charging and discharging MOSFETs and support pre-discharge function
Typical applications
- Motor drives, drones
- e-bike battery pack / e-scooter battery pack / Mowing robot battery pack / UPS Li-Ion battery pack / Other over 10S battery pack applications
- Appliances, power and garden tools
- telecom
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) | ISAT (A) | fres (MHz) | Size | Version | Pins | Mount | L (mm) | H (mm) | IR (mA) | Working Voltage (V (AC)) | Operating Temperature | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150060RS75000 | SPEC | 26 files RAY files
| Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | 625 | Red | 630 | 250 | 2 | AlInGaP | 140 | – | – | – | 0603 | – | – | SMT | 1.6 | 0.7 | – | – | -40 °C up to +85 °C | – | – | – | – | – | – | ||
 | 74279265 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | – | 0603 | SMT | – | SMT | 1.6 | 0.8 | 200 | – | -55 °C up to +125 °C | 600 | 720 | 200 MHz | 850 | 0.45 | Wide Band | ||
 | 7447713680 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD SMT Power Inductor | – | – | – | – | – | – | – | 68 | 1.6 | 9.4 | 1030 | Performance | 2 | SMT | 10 | 3 | 1100 | – | -40 °C up to +150 °C | – | – | – | – | 0.33 | – | ||
 | 61301411121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | – | – | – | 14 | THT | 35.56 | – | 3000 | 250 | -40 °C up to +105 °C | – | – | – | – | – | Straight | |
 | 61300211121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | – | – | – | 2 | THT | 5.08 | – | 3000 | 250 | -40 °C up to +105 °C | – | – | – | – | – | Straight | |
 | 61300411121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | – | – | – | 4 | THT | 10.16 | – | 3000 | 250 | -40 °C up to +105 °C | – | – | – | – | – | Straight |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 150060RS75000 | SPEC | |
| 74279265 | SPEC | |
| 7447713680 | SPEC | |
| 61301411121 | SPEC | – |
| 61300211121 | SPEC | – |
| 61300411121 | SPEC | – |
| Samples |
|---|
| 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) | ISAT (A) | fres (MHz) | Size | Version | Pins | Mount | L (mm) | H (mm) | IR (mA) | Working Voltage (V (AC)) | Operating Temperature | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | Samples |
|---|
