Linear Technology LT1505
The LT1505 can charge batteries ranging from 2.5V to 20V with dropout voltage as low as 0.5V. The LT1505 is available in a 28-pin SSOP package.- Min Voltage : 11V
- Max Voltage : 26V
- Max Operating Temp : 70°C
- Min Operating Temp : 0°C
Source:
Octopart
| Part No. | LT1505 |
|---|---|
| Datasheet | LT1505 Download |
| Manufacturer |  Linear Technology |
| Description | Constant-Current/Voltage High Efficiency Battery Charger |
| Buy | Stock & Price |
FEATURES
s s s s LT1505 Constant-Current/Voltage High Efficiency Battery Charger DESCRIPTIO The LT®1505 PWM battery charger controller fast charges multiple battery chemistries including lithium-ion (Li-Ion), nickel-metal-hydride (NiMH) and nickel-cadmium (NiCd) using constant-current or constant-voltage control. Maximum current can be easily programmed by resistors or a DAC. The constant-voltage output can be selected for 3 or 4 series Li-Ion cells with 0.5% accuracy. A third control loop limits the current drawn from the AC adapter during charging*. This allows simultaneous operation of the equipment and fast battery charging without overloading the AC adapter. Synchronous N-channel FETs switching at 200kHz give high efficiency and allow small inductor size. A diode is not required in series with the battery because the charger automatically enters a 10µA sleep mode when the wall adapter is unplugged. A logic output indicates Li-Ion full charge when current drops to 20% of the programmed value.
