Batterie-Lademanagement- und -Regler-Einheit
LP3918
- Fully Integrated Li-Ion Battery Charger with Thermal Regulation
- USB Charge Mode
- 7 Low Noise LDO’s
- 2 x 300 mA
- 3 x 150 mA
- 2 x 80 mA
- I2C Compatible Interface for Controlling LDO Outputs and Charger Operation
- Thermal Shutdown
- Under Voltage Lockout
- 25-Bump Thin DSBGA Package 2.5 x 2.5 mm
- Options Available on Request, Please Contact Sales Office for Further Information;
- Level Detect on HF_PWR & PWR_ON
- LDO Charging Mode
- Custom Default Settings on Charger, and LDO O/P's.
Key Specifications
- 50mA to 950mA Programmable Charge Current
- 3.0V to 5.5V Input Voltage Range
- 200mV Typ. Dropout Voltage on 300 mA LDO’s
- 2% (Typ) Output Voltage Accuracy on LDO’s
All trademarks are the property of their respective owners.
The LP3918 is a fully integrated charger and multi-regulator unit designed for CDMA cellular phones. The LP3918 contains a Li-Ion battery charger, 7 low noise low dropout (LDO) voltage regulators and a high-speed serial interface to program on/off conditions and output voltages of individual regulators, and also to read status information from the PMU.
The Li-Ion charger integrates a power FET, reverse current blocking diode, sense resistor with current monitor output, and requires only a few external components. Charging is thermally regulated to obtain the most efficient charging rate for a given ambient temperature.
LDO regulators provide high PSRR and low noise ideally suited for supplying power to both analog and digital loads.
Technische Dokumentation
| Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | LP3918 Battery Charge Management and Regulator Unit datasheet (Rev. D) | 03 Mai 2013 |
Bestellen & Qualität
- RoHS
- REACH
- Bausteinkennzeichnung
- Blei-Finish/Ball-Material
- MSL-Rating / Spitzenrückfluss
- MTBF-/FIT-Schätzungen
- Materialinhalt
- Qualifikationszusammenfassung
- Kontinuierliches Zuverlässigkeitsmonitoring
- Werksstandort
- Montagestandort