onsemi FAN5403BUCX Battery Chargers
Charger IC Lithium Ion/Polymer 20-WLCSP (1.96x1.56)
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
FAN5403BUCX
Detailed Description
IC BATT CHG LI-ION 1CELL 20WLCSP
Package
20-UFBGA, WLCSP
Key Features
Package / Case: 20-UFBGA, WLCSP; Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
FAN5403BUCX Datasheet
Quick Jump:
Technical Specifications
onsemi FAN5403BUCX Battery Chargers technical specifications.
General
Interface
I²C, USB
Package / Case
20-UFBGA
Mounting Type
Surface Mount
Operating Temperature
-30°C ~ 85°C (TA)
Lifecycle Status
Obsolete
Battery Chemistry
Lithium Ion/Polymer
Number of Cells
1
Charge Current Max
1.25A
Fault Protection
Over Temperature, Over Voltage, Short Circuit
Current Charging
Constant - Programmable
Alternate Parts Comparison (FAN5403BUCX vs FAN65004B vs FAN4174IS5X vs FAN53555UC04X)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 20-UFBGA | 35-PowerWFQFN | SC-74A, SOT-753 | 20-UFBGA |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -30°C ~ 85°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 85°C | -40°C ~ 85°C (TA) |
| Interface | I²C, USB | -- | -- | -- |
| Battery Chemistry | Lithium Ion/Polymer | -- | -- | -- |
| Battery Pack Voltage | 4.5V (Max) | -- | -- | -- |
| Charge Current Max | 1.25A | -- | -- | -- |
| Current Charging | Constant - Programmable | -- | -- | -- |
| Fault Protection | Over Temperature, Over Voltage, Short Circuit | -- | -- | -- |
| Number of Cells | 1 | -- | -- | -- |
| Programmable Features | Current, Timer, | -- | -- | -- |
| Voltage Supply Max | 6V | -- | -- | -- |
| Action |
More Parts in Battery Chargers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.