LTC4011
PRODUCTIONHigh Efficiency Standalone Nickel Battery Charger
- Part Models
- 2
- 1ku List Price
- Starting From $7.02
Overview
- Complete NiMH/NiCd Charger for 1 to 16 Cells
- No Microcontroller or Firmware Required
- 550kHz Synchronous PWM Current Source Controller
- No Audible Noise with Ceramic Capacitors
- PowerPath™ Control Support
- Programmable Charge Current: 5% Accuracy
- Wide Input Voltage Range: 4.5V to 34V
- Automatic Trickle Precharge
- –ΔV Fast Charge Termination
- Optional ΔT/Δt Fast Charge Termination
- Automatic NiMH Top-Off Charge
- Programmable Timer
- Automatic Recharge
- Multiple Status Outputs
- Micropower Shutdown
- 20-Lead Thermally Enhanced TSSOP Package
The LTC4011 provides a complete, cost-effective nickel battery fast charge solution in a small package using few external components. A 550kHz PWM current source controller and all necessary charge initiation, monitoring and termination control circuitry are included.
The LTC4011 automatically senses the presence of a DC adapter and battery insertion or removal. Heavily discharged batteries are precharged with a trickle current. The LTC4011 can simultaneously use both –ΔV and ΔT/Δt fast charge termination techniques and can detect various battery faults. If necessary, a top-off charge is automatically applied to NiMH batteries after fast charging is completed. The IC will also resume charging if the battery self-discharges after a full charge cycle.
All LTC4011 charging operations are qualified by actual charge time and maximum average cell voltage. Charging may also be gated by minimum and maximum temperature limits. NiMH or NiCd fast charge termination parameters are pin-selectable.
Integrated PowerPath control support ensures that the system remains powered at all times without allowing load transients to adversely affect charge termination.
Applications
- Integrated or Standalone Battery Charger
- Portable Instruments or Consumer Products
- Battery-Powered Diagnostics and Control
- Back-Up Battery Management
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Design Note 1
Technical Articles 3
Frequently Asked Question 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 |
|---|---|---|---|
| LTC4011CFE#PBF | 20-Lead TSSOP w/ EP | ||
| LTC4011CFE#TRPBF | 20-Lead TSSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only) |
||
| LTC4011CFE#PBF | PRODUCTION | |
| LTC4011CFE#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL |
||
| LTC4011CFE#PBF | PRODUCTION | |
| LTC4011CFE#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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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 |
| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC2955 | RECOMMENDED FOR NEW DESIGNS | Pushbutton On/Off Controller with Automatic Turn-On |
| Oscillators 1 | ||
| LTC6991 | PRODUCTION | TimerBlox: Resettable, Low Frequency Oscillator |
| Overvoltage & Overcurrent Protectors 1 | ||
| LTC4365 | RECOMMENDED FOR NEW DESIGNS | Overvoltage, Undervoltage and Reverse Supply Protection Controller |
