EUP datasheet, EUP circuit, EUP data sheet: EUTECH – Standalone Linear Li-Ion Battery Charger With Thermal Regulation in ThinSOT. EUP Price, EUP Stock, Buy EUP from electronic components distributors. Instant result for EUP Buy Eutech Microelectronics EUP at Win Source. Source EUP Price, Find EUP Datasheet,Check EUP In stock & RFQ from online electronic .
|Published (Last):||10 June 2010|
|PDF File Size:||19.67 Mb|
|ePub File Size:||12.7 Mb|
|Price:||Free* [*Free Regsitration Required]|
The PC board copper is the heat sink. Block Diagram DS Ver1. This parameter is not applicable to the EUPX.
To determine if there is a weak inrush current at the start of a eeup cycle. In all modes, the voltage on this pin can be used to measure the charge current using the following formula: This feature protects the EUP from excessive temperature and allows the user to push the limits of the power handling capability of a given circuit board without risk of damaging the EUP This pin is also clamped to approximately 2.
The charge current can be set according to typical 8504 worst-case ambient temperature 0854 the assurance that the charger will automatically reduce the current in worst-case conditions. Provides charge current to the battery and regulates the final float voltage to 4.
CHRG output enters a strong pull-down state during recharge cycles.
Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. The EUP are guaranteed to meet performance specifications from 0 to This ensures that the battery is kept at or near a fully charged condition and eliminates the need for periodic charge cycle initiations.
The charge voltage is fixed at 4. Other heat sources on the board, not related to the chargermust also be considered when designing a PC board layout because they will affect overall temperature rise and the maximum charge current.
If this voltage drops below the 4.
The thermal path for the heat generated by the IC is from the die to the copper lead frame, through the package leads, especially the ground lead to the PC board copper.
A new charge cycle can be initiated by reconnecting the program resistor. Figure 12 shows an example of how to rup that a charge cycle is in progress.
Nearly all connected to the charger output. When charging in constant-current mode, this pin servos to 1V. Feedthrough vias to inner or backside copper layers are also useful in improving the overall thermal performance of the charger. Therefore, an N-channel has ended.
(PDF) EUP8054 Datasheet download
An internal precision resistor divider from this pin sets the float voltage which is disconnected in shutdown mode. The the average battery current as shown in Figure 8. The wup ambient temperature at which stability is affected by the impedance at the PROG pin.
Once the average charge current drops below BAT pin is less than 2.
Eupp Input Supply Voltage. VCC can range from 4. Driving this pin to voltages beyond the clamp voltage will draw currents as high as1.
Provides power to the charger. The footprint copper pads should be as wide as possible and expand out to larger copper areas to spread 804 dissipate the heat to the surrounding ambient. A charge cycle restarts when the battery voltage falls below 4.
No series resistor is needed if tantalum capacitors are used.
EUPStandalone Linear Li-Ion Battery Charger
Open-Drain Charge Status Output. The EUPX does not include this trickle charge feature. When it reaches the 1. Figure 10 shows that by using two different value pull-up resistors, a microprocessor can detect all three states from this pin.
The strong pull-down state indicates that the is times the current out of the PROG pin. State Diagram of a Typical Charge Cycle An internal undervoltage lockout circuit monitors the input voltage and keeps the charger in shutdown mode until VCC rises above the undervoltage lockout threshold.