LTC4091

RECOMMENDED FOR NEW DESIGNS

36V Battery Charger and Power Backup Manager

Data Sheet Product Selection Table
Part Models
4
1ku List Price
Starting From $3.89
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Part Details

  • Seamless Transition Between Primary Power Source and Li-Ion Battery
  • 2A High Voltage Step-Down Regulator with Adaptive Output Control
  • Internal 75mΩ Ideal Diode Plus Optional External Ideal Diode Controller Provides Low Loss PowerPath™ When Primary Supply Not Present
  • Wide Input Voltage Range: 6V to 36V (60V Abs Max)
  • 4.45V Max Output Voltage
  • Full Featured Li-Ion Battery Charger
  • Pin Selectable 4.1V and 4.2V Charge Voltage Options
  • Thermally Enhanced Low Profile (0.75mm) 6mm × 3mm 22-Lead DFN Package
LTC4091
36V Battery Charger and Power Backup Manager
Typical Application 1 Vout, Ibat V3 Vbat Package Image 1
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Documentation

Data Sheet 1

User Guide 1

Technical Articles 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

Parts Product Life Cycle Description
PowerPath, Ideal Diodes, and Load Switches 1
LTC4417
RECOMMENDED FOR NEW DESIGNS Prioritized PowerPath™ Controller
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LTC4368
RECOMMENDED FOR NEW DESIGNS 100V UV/OV and Reverse Protection Controller with Bidirectional Circuit Breaker
USB Power Manager (PowerPath, Battery Charger) 1
LTC4090
LTC4090-5
USB Power Manager with 2A High Voltage Bat-Track Buck Regulator
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Evaluation Kits

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schematic 4
DC2558A

LTC4091 Demo Board | 36V Battery Charger and Power Backup Manager

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Product Details

Demonstration circuit 2558A is a high voltage switching buck regulator, Li-Ion cell charger and power backup manager. It is based on the LTC4091 and provides the following functions: 2A buck regulator with 7.5V-36V (60V absolute max) input range and with output voltage tracking cell voltage, full-featured cell charger with selectable 4.1V or 4.2V maximum charge voltage, and a power path manager for the cell. Output voltage is strictly limited to 4.45V. Temperature protection is optional with an external NTC temperature sensor.
DC2558A
LTC4091 Demo Board | 36V Battery Charger and Power Backup Manager
DC2558A Evaluation Board DC2558A Evaluation Board - Top View DC2558A Evaluation Board - Bottom View DC2558A

Latest Discussions

3 Years Ago
RE: LTC4091: What's a quiescent current value?
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