MAX1645BEEI+T
UnknownADVANCED CHEMISTRY-INDEPENDENT, LEVEL 2 BATTERY CHARGER WITH INPUT CURRENT LIMITING
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MAX1645BEEI+T
UnknownADVANCED CHEMISTRY-INDEPENDENT, LEVEL 2 BATTERY CHARGER WITH INPUT CURRENT LIMITING
Technical Specifications
Parameters and characteristics for this part
| Specification | MAX1645BEEI+T |
|---|---|
| Battery Chemistry | Multi-Chemistry |
| Battery Pack Voltage [Max] | 18.4 V |
| Charge Current - Max [Max] | 3 A |
| Interface | SMBus, I2C |
| Mounting Type | Surface Mount |
| Number of Cells [Max] | 4 |
| Number of Cells [Min] | 1 |
| Operating Temperature [Max] | 85 C |
| Operating Temperature [Min] | -40 ¯C |
| Package / Case | 28-SSOP |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 28-QSOP |
| Voltage - Supply (Max) [Max] | 28 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 0.00 | |
Description
General part information
MAX1645B Series
The MAX1645B is a high-efficiency battery charger capable of charging batteries of any chemistry type. It uses the Intel System Management Bus (SMBus™) to control voltage and current-charge outputs.When charging lithium-ion (Li+) batteries, the MAX1645B automatically transitions from regulating current to regulating voltage. The MAX1645B can also limit line input current so as not to exceed a predetermined current drawn from the DC source. A 175s charge safety timer prevents "runaway charging" should the MAX1645B stop receiving charging voltage/current commands.The MAX1645B employs a next-generation synchronous buck control circuitry that lowers the minimum input-to-output voltage drop by allowing the duty cycle to exceed 99%. The MAX1645B can easily charge one to four series Li+ cells.ApplicationsNotebook ComputersPersonal Digital AssistantsPoint-of-Sale Terminals
Documents
Technical documentation and resources