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reference designBQ25858 | Demoboard BQ25858EVM

Texas Instruments BQ25858 | Demoboard BQ25858EVM

Evaluation module for automotive and I2C controlled, 70V bidirectional buck-boost converter

Overview

TopologyBattery Management System
Input voltage4.4-70 V
Switching frequency200-600 kHz
Output 120 A
IC revisionA

Description

The BQ25858 evaluation module (EVM) is a complete evaluation systems for the BQ25858-Q1 IC. The BQ25858EVM has a max input and output of 55V and a max output current of 10A.The BQ25858-Q1 IC is a wide voltage, bidirectional switched-mode buck-boost controller. This device offers high-efficiency power conversion over a wide voltage range with output CC-CV control. This IC has a wide input range of 4.2V to 60V and a wide output range of up to 60V

Features

Wide input voltage operating range: 4.2V to 55VWide output operating range: up to 55VSynchronous buck-boost DC/DC controller with NFET driversAdjustable switching frequency from 200kHz to 600kHzOptional synchronization to external clockOptional gate driver supply input for optimized efficiencyI 2C-controlled or resistor programmable optionsPower up from battery (reverse mode) output 4V to 55VHigh safety integrationAdjustable input overvoltage and undervoltage protectionOutput overvoltage and overcurrent protection

Typical applications

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150060VS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 570 nm, Bright Green
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]570 nm
Emitting ColorBright Green 
Peak Wavelength [typ.]572 nm
Luminous Intensity [typ.]40 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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784373170150
SPECWE-LHCA Low Profile High Current Inductor, –, –
Simu­lation–
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHCA Low Profile High Current Inductor
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Inductance15 µH
Saturation Current21.7 A
DC Resistance17 mΩ
Performance Rated Current12.4 A
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