LTC4100
PRODUCTIONSmart Battery Charger Controller
- Part Models
- 2
- 1ku List Price
- Starting From $8.35
Overview
- Single Chip Smart Battery Charger Controller
- 100% Compliant (Rev. 1.1) SMBus Support Allows for Operation with or without Host
- SMBus Accelerator Improves SMBus Timing
- Wide Output Voltage Range: 3.5V to 26V
- Hardware Interrupt and SMBAlert Response Eliminate Interrupt Polling
- High Efficiency Synchronous Buck Charger
- 0.5V Dropout Voltage; Maximum Duty Cycle > 98%
- AC Adapter Current Limit Maximizes Charge Rate
- ±0.8% Voltage Accuracy; ±4% Current Accuracy
- Up to 4A Charging Current Capability
- 10-Bit DAC for Charge Current Programming
- 11-Bit DAC for Charger Voltage Programming
- User-Selectable Overvoltage and Overcurrent Limits
- High Noise Immunity SafetySignal Sensor
- Available in a 24-Pin SSOP Package
The LTC4100 Smart Battery Charger is a single chip charging solution that dramatically simplifies construction of an SBS compliant system. The LTC4100 implements a Level 2 charger function whereby the charger can be programmed by the battery or by the host. A SafetySignal on the battery being charged is monitored for temperature, connectivity and battery type information. The SMBus interface remains alive when the AC power adapter is removed and responds to all SMBus activity directed to it, including SafetySignal status (via the ChargerStatus command). The charger also provides an interrupt to the host whenever a status change is detected (e.g., battery removal, AC adapter connection).
Charging current and voltage are restricted to chemistry specific limits for improved system safety and reliability. Limits are programmable by two external resistors. Additionally, the maximum average current from the AC adapter is programmable to avoid overloading the adapter when simultaneously supplying load current and charging current. When supplying system load current, charging current is automatically reduced to prevent adapter overload.
Applications
- Portable Instruments and Computers
- Data Storage Systems and Battery Backup Servers
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Design Note 1
Technical Articles 1
Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC4100EG#PBF | 24-Lead SSOP | ||
| LTC4100EG#TRPBF | 24-Lead SSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 6, 2022 - 22_0171 Laser Top Mark Conversion for SSOP Packages Assembled in PNG |
||
| LTC4100EG#PBF | PRODUCTION | |
| LTC4100EG#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Monitors & Fuel Gauges 1 | ||
| LTC2942-1 | Obsolete | 1A Battery Gas Gauge with Internal Sense Resistor and Temperature/Voltage Measurement |
| Hot Swap Controllers 1 | ||
| LTC4364 | RECOMMENDED FOR NEW DESIGNS | Surge Stopper with Ideal Diode |
| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC2955 | RECOMMENDED FOR NEW DESIGNS | Pushbutton On/Off Controller with Automatic Turn-On |
| Level Translators & Buffers 1 | ||
| LTC4307 | PRODUCTION | Low Offset Hot Swappable 2-Wire Bus Buffer with Stuck Bus Recovery |
Evaluation Kits
LTC4100EG | 3-/4-Cell Li-Ion Smart Battery Charger, DCIN = 15V to 20V, up to 4A Charge Current, (Requires DC1223)