LP3918TL/NOPB
NRNDCDMA PHONE HANDSETS 3V TO 5.5V 25-PIN DSBGA T/R
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LP3918TL/NOPB
NRNDCDMA PHONE HANDSETS 3V TO 5.5V 25-PIN DSBGA T/R
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Technical Specifications
Parameters and characteristics for this part
| Specification | LP3918TL/NOPB |
|---|---|
| Battery Chemistry | Lithium Ion |
| Battery Pack Voltage | 4.2 V |
| Charge Current - Max [Max] | 950 mA |
| Current - Charging | Constant - Programmable |
| Fault Protection | Reverse Current |
| Interface | I2C |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 25-WFBGA |
| Supplier Device Package | 25-uSMD |
| Voltage - Supply (Max) [Max] | 6 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.99 | |
| 10 | $ 1.78 | |||
| 25 | $ 1.68 | |||
| 100 | $ 1.43 | |||
| Digi-Reel® | 1 | $ 1.99 | ||
| 10 | $ 1.78 | |||
| 25 | $ 1.68 | |||
| 100 | $ 1.43 | |||
| Tape & Reel (TR) | 250 | $ 0.95 | ||
| 500 | $ 0.83 | |||
| Texas Instruments | SMALL T&R | 1 | $ 1.72 | |
| 100 | $ 1.42 | |||
| 250 | $ 1.02 | |||
| 1000 | $ 0.77 | |||
Description
General part information
LP3918 Series
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.
Documents
Technical documentation and resources
