Datasheet Linear Technology LTC4121
| Manufacturer | Linear Technology |
| Series | LTC4121 |
40V 400mA Synchronous Step-Down Battery Charger
Datasheets
Datasheet LTC4121, LTC4121-4.2
PDF, 383 Kb, Language: en, File uploaded: Sep 30, 2017, Pages: 30
40V 400mA Synchronous Step-Down Battery Charger
40V 400mA Synchronous Step-Down Battery Charger
Extract from the document
Prices
Packaging
| LTC4121EUD#PBF | LTC4121EUD#TRPBF | LTC4121IUD#PBF | LTC4121IUD#TRPBF | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Package | 3x3 QFN-16 Package Outline Drawing | 3x3 QFN-16 Package Outline Drawing | 3x3 QFN-16 Package Outline Drawing | 3x3 QFN-16 Package Outline Drawing |
| Package Code | UD | UD | UD | UD |
| Package Index | 05-08-1691 | 05-08-1691 | 05-08-1691 | 05-08-1691 |
| Pin Count | 16 | 16 | 16 | 16 |
Parametrics
| Parameters / Models | LTC4121EUD#PBF | LTC4121EUD#TRPBF | LTC4121IUD#PBF | LTC4121IUD#TRPBF |
|---|---|---|---|---|
| Battery Chemistry | Li-Ion, Li-Polymer, LiFePO4, Lead Acid | Li-Ion, Li-Polymer, LiFePO4, Lead Acid | Li-Ion, Li-Polymer, LiFePO4, Lead Acid | Li-Ion, Li-Polymer, LiFePO4, Lead Acid |
| Buck Output Current, A | 400mA | 400mA | 400mA | 400mA |
| Charge Termination | Timer | Timer | Timer | Timer |
| Demo Boards | DC1977A-A,DC1977A-B | DC1977A-A,DC1977A-B | DC1977A-A,DC1977A-B | DC1977A-A,DC1977A-B |
| Export Control | no | no | no | no |
| Features | Maximum Power Point Tracking (Sampled Voc) | Maximum Power Point Tracking (Sampled Voc) | Maximum Power Point Tracking (Sampled Voc) | Maximum Power Point Tracking (Sampled Voc) |
| Float Voltage, V | Up to 18V | Up to 18V | Up to 18V | Up to 18V |
| Max Charge Current, A | 0.4 | 0.4 | 0.4 | 0.4 |
| Number of Cells | Up to 18V Battery Voltage | Up to 18V Battery Voltage | Up to 18V Battery Voltage | Up to 18V Battery Voltage |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 |
| Type of Charger | Switching | Switching | Switching | Switching |
| Vin Max, V | 40 | 40 | 40 | 40 |
| Vin Min, V | 4.4 | 4.4 | 4.4 | 4.4 |
Eco Plan
| LTC4121EUD#PBF | LTC4121EUD#TRPBF | LTC4121IUD#PBF | LTC4121IUD#TRPBF | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Other Options
Model Line
Series: LTC4121 (4)
Manufacturer's Classification
- Power Management > Battery Management > Battery Charger IC > Switching Battery Chargers
- Power Management > Energy Harvesting
