EUP 8054 PDF

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 .

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Provides power to the charger. 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 Block Diagram DS Ver1. CHRG output enters a strong eupp state during recharge cycles.

Standalone Linear Li-Ion Battery Charger With Thermal Regulation In ThinSOT

The thermal path for the heat generated by the IC is from the 854 to the copper lead frame, through the package leads, especially the ground lead to the PC board copper. Driving this pin to voltages beyond the clamp voltage will draw currents as high as1.

This ensures that the battery is kept at or near a fully charged condition and eliminates the need for periodic charge cycle initiations. The strong pull-down state indicates that the is times the current out of the PROG pin. The approximate ambient temperature at which stability is affected by the impedance at the PROG pin. The footprint copper pads should be as wide as possible and expand out to larger copper areas to spread and dissipate the heat to the surrounding ambient.


EUP8054 Datasheet PDF

Nearly all connected to the charger output. The EUPX does not include this trickle charge feature.

No series resistor is needed if tantalum capacitors are used. This parameter is not applicable to the EUPX.

VCC can range from 4. Absolute Maximum Ratings are those values beyond which the life of the device may be impaired.

EUP lithium-ion charger circuit diagram

Open-Drain Charge Status Output. Positive Input Supply Voltage. Figure 10 shows that by using two different value pull-up resistors, a microprocessor can detect all three states from this pin. The the average battery current as shown in Figure 8. The EUP are guaranteed to meet performance specifications from 0 to 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.

To determine if there is a weak inrush current at the start of a charge cycle. Figure 12 shows an example of how to indicates that a charge cycle is in progress. If this voltage drops below the 4.


A new charge cycle can be initiated by reconnecting the program resistor. 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. A charge cycle restarts when the battery voltage falls below 4.

An internal precision resistor divider from this pin sets the float voltage which is disconnected in shutdown mode. The charge voltage is fixed at 4. The charge current can be set according to typical not worst-case ambient temperature with the assurance that the charger will automatically reduce the current in worst-case conditions.

When it reaches the 1. Therefore, an N-channel has ended. Once the dup charge current drops below BAT pin is less than 2.

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When charging in constant-current mode, this pin servos to 1V. In all modes, the voltage on this pin can be used to measure the charge current using the following formula: The PC board copper is the heat sink. Provides charge current to the battery and regulates the final float voltage to 4.