LT8490_15 datasheet(1/42 Pages) LINER

部品番号	LT8490

部品情報	High Voltage, High Current Buck-Boost Battery Charge Controller with Maximum Power Point Tracking

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メーカー	LINER [Linear Technology]

ホームページ	http://www.linear.com

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LT8490

1

8490f

For more information www.linear.com/LT8490

Typical applicaTion

FeaTures

DescripTion

High Voltage, High Current

Buck-Boost Battery Charge Controller with

Maximum Power Point Tracking (MPPT)

The LT®8490 is a buck-boost switching regulator battery

charger that implements a constant-current constant-

voltage (CCCV) charging profile used for most battery

types, including sealed lead-acid (SLA), flooded, gel and

lithium-ion. The device operates from input voltages

above, below or equal to the output voltage and can be

powered by a solar panel or a DC power supply. On-chip

logic provides automatic maximum power point tracking

(MPPT) for solar powered applications. The LT8490 can

perform automatic temperature compensation by sensing

an external thermistor thermally coupled to the battery.

STATUS and FAULT pins containing charger information

can be used to drive LED indicator lamps. The device is

available in a low profile (0.75mm) 7mm × 11mm 64-lead

QFN package.

Simplified Solar Powered Battery Charger Schematic

applicaTions

n

VIN Range: 6V to 80V

n

VBAT Range: 1.3V to 80V

n

Single Inductor Allows VIN Above, Below, or Equal

to VBAT

n

Automatic MPPT for Solar Powered Charging

n

Automatic Temperature Compensation

n

No Software or Firmware Development Required

n

Operation from Solar Panel or DC Supply

n

Input and Output Current Monitor Pins

n

Four Integrated Feedback Loops

n

Synchronizable Fixed Frequency: 100kHz to 400kHz

n

64-Lead (7mm × 11mm × 0.75mm) QFN Package

n

Solar Powered Battery Chargers

n

Multiple Types of Lead-Acid Battery Charging

n

Li-Ion Battery Charger

n

Battery Equipped Industrial or Portable Military

Equipment

L

, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot

Swap is a trademark of Linear Technology Corporation. All other trademarks are the property of

their respective owners.

LT8490

SOLAR PANEL

TG1 BOOST1

CSNIN

CSPIN

VIN

CSPOUT

CSNOUT

EXTVCC

AVDD

TEMPSENSE

GATEVCC

INTVCC

SW1 BG1 CSP CSN

STATUS

FAULT

AVDD

BG2 SW2 BOOST2 TG2

GND

RECHARGABLE

BATTERY

LOAD

THERMISTOR

+

–

8490 TA01a

AVDD

GATEVCC´

VBAT

8490 TA01b

0.5s/DIV

VPANEL

6V/DIV

IPANEL

1.36A/DIV

BACK PAGE APPLICATION

PERTURB &

OBSERVE

PERTURB &

OBSERVE

FULL PANEL SCAN

Maximum Power Point Tracking

同様の部品番号 - LT8490_15

メーカー	部品番号	データシート	部品情報
Linear Technology	LT8490	413Kb / 8P	High Efficiency MPPT Battery Charger Controller
Analog Devices	LT8490	1Mb / 48P	35V/3.2A Lead-Acid Step-Down Battery Charger with PowerPath and I2C Telemetry 01/19-REV.B
	LT8490	1Mb / 52P	35V/3.2A Multicell Lithium-Ion Step-Down Battery Charger with PowerPath and I2C Telemetry 10/18-REV.A
	LT8490	1Mb / 52P	35V/3.2A Multicell LiFePO4 Step-Down Battery Charger with PowerPath and I2C Telemetry 10/18-REV.A

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同様の説明 - LT8490_15

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Texas Instruments	BQ24650	2Mb / 33P	Synchronous Switch-Mode Battery Charge Controller for Solar Power With Maximum Power Point Tracking
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Linear Technology	LTC4000-1	489Kb / 40P	High Voltage High Current Controller for Battery Charging with Maximum Power Point Control
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Shenzhen Huazhimei Semi...	HM4072B	1Mb / 11P	4A multi-cell battery charge management IC with solar cell maximum power point tracking
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