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LTC4099

Features: Switching Regulator with Bat-TrackTM Adaptive Output Control Makes Optimal Use of Limited Input Power I2C Port for Optimal System Performance and Status Information Input Overvoltage Protection Bat-Track Control of External Step-Down Switching Regulator Maximizes Effi ciency from Automot...

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SeekIC No. : 004402463 Detail

LTC4099: Features: Switching Regulator with Bat-TrackTM Adaptive Output Control Makes Optimal Use of Limited Input Power I2C Port for Optimal System Performance and Status Information Input Overvoltage Prote...

LTC4099 Data Sheet

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Part Number:
LTC4099
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/23

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Product Details

Description



Features:

Switching Regulator with Bat-TrackTM Adaptive Output Control Makes Optimal Use of Limited Input Power
I2C Port for Optimal System Performance and Status Information
Input Overvoltage Protection
Bat-Track Control of External Step-Down Switching Regulator Maximizes Effi ciency from Automotive and Other High Voltage Sources
Instant-On Operation with Low Battery
Optional Overtemperature Battery Conditioner Improves High Temperature Battery Safety Margin
Ideal Diode Seamlessly Connects Battery When Input Power is Limited or Unavailable
Full-Featured Li-Ion/Polymer Battery Charger
1.5A Maximum Charge Current with Thermal Limiting
Slew Control Reduces Switching EMI
Ultra-Thin (0.55mm) 20-Lead 3mm * 4mm QFN


Application

Media Players
Portable Navigation Devices
Smart Phones
Industrial Handhelds
 Portable Medical Instruments


Pinout

Connection Diagram


Specifications

VBUS, WALL (Transient) t < 1ms,
Duty Cycle < 1% ...................................... 0.3V to 7V
VBUS, WALL (Static), BAT, BATSENS, IRQ,
NTC, DVCC ............................................... 0.3V to 6V
SDA, SCL .......... 0.3V to Max (VBUS, VOUT, BAT) + 0.3V
IOVSENS .................................................................±10mA
ICLPROG ....................................................................3mA
IPROG, INTCBIAS .........................................................2mA
IOUT, ISW, IBAT, IVBUS ...................................................2A
Maximum Junction Temperature........................... 125
Operating Temperature Range.................. 40 to 85
Storage Temperature Range ................... 65 to 125
IIRQ .........................................................................50mA
IACPR ......................................................................±5mA


Description

The LTC®4099 is an I2C controlled high effi ciency USB PowerPath™ controller and full-featured Li-Ion/Polymer battery charger. It seamlessly manages power distribution from multiple sources including USB, a wall adapter and a Li-Ion/Polymer battery.

The LTC4099 automatically limits its input current for USB compatibility. For automotive and other high voltage applications, the LTC4099 interfaces with an external switching regulator. Both the USB input and the auxiliary input controller feature Bat-Track optimized charging to provide maximum power to the application and reduced heat in high power density applications.

The I2C port allows digital control of important application parameters including input current limit, charge current and fl oat voltage. Several status bits can also be read back via I2C.

An overvoltage protection circuit guards the LTC4099 from high voltage damage on the low voltage VBUS pin. The LTC4099 is available in the ultra-thin (0.55mm) 20-lead 3mm × 4mm QFN surface mount package.




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