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reference designLTC4020 | Demoboard DC2134A

Analog Devices LTC4020 | Demoboard DC2134A

LTC4020EUHF Demo Board | 15V to 55VIN, 6.3A Multi-Chemistry, Buck-Boost Battery Charger, up to 25.2Vbat

Overview

TopologyBoost Converter
Input voltage15-55 V
Output 128 V / 8 A
IC revisionA

Description

Demonstration circuit 2134A is a high power buck-boost multichemistry battery charger featuring the LTC®4020. The board will accept an input voltage between 15V and 55V. The float voltage of the battery output (BAT) is 25.2V,with 6.3A maximum charge current. The converter output (VOUT) has a voltage range of 21V to 28V, with 8A maximum load current. The LTC4020 contains a high efficiency synchronous buck-boost DC/DC controller, and uses a proprietary average current mode architecture.

The LTC4020 battery charger can provide a constantcurrent/constant-voltage charge algorithm (JP1: CC/CV,with mode pin grounded), constant-current charging (JP1:CC, with mode pin floated), or charging with an optimized4-step, 3-stage lead-acid battery charge profile (JP1: leadacid, with mode pin connected to INTVCC).

The LTC4020 data sheet gives a complete description of the IC operation and application information. The data sheet must be read in conjunction with this quick start guide.

More information

Parts approved by Analog Devices

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
Pins
Type
Mount
L(mm)
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
Packaging
SamplesAvailability & Sample
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7443556560
SPECWE-HCI SMT Flat Wire High Current Inductor, 5.6 µH, 22.8 A
Simu­lation
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance5.6 µH
Performance Rated Current22.8 A
Saturation Current @ 10%15 A
Saturation Current @ 30%33 A
DC Resistance3.7 mΩ
Self Resonant Frequency28 MHz
MaterialWE-PERM 2 
Packaging Unit150 
Pins2 
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MountSMT 
Length18.3 mm
Height8.9 mm
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Operating Temperature -40 °C up to +150 °C
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60800213421
SPECWR-PHD Jumper, –, –
Simu­lation–
Availability
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Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
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Packaging Unit1000 
Pins2 
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Rated Current3 A
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
PackagingBag 
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62000311121
SPECWR-PHD Pin Header, –, –
Simu­lation–
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
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Packaging Unit1000 
Pins3 
TypeStraight 
MountTHT 
Length6 mm
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Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
–Check availability