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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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λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
L(µH)
ISAT(A)
RDC typ.(mΩ)
IRP,40K(A)
SamplesAvailability & Sample
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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, –, –

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

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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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