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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Driving this pin to voltages beyond the clamp voltage will draw currents as high as1. A charge cycle restarts uep the battery voltage falls below 4. 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 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.

Provides charge current to the battery and regulates the final float voltage to 4.

The charge voltage is fixed at 4. The PC board copper is the heat sink.

Positive Input Supply Voltage. 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.


Feedthrough vias to inner or backside copper layers are also useful in improving the overall thermal performance of the charger. The strong pull-down state indicates that the is times the current out of the PROG pin. This ensures that the battery is kept at or near a fully charged condition and eliminates the need for periodic charge cycle initiations.

The the average battery current as shown in Figure 8. VCC can range from 4. This pin is also clamped to approximately 2. 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.

EUP lithium-ion charger circuit diagram

Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Once the average charge current drops below BAT pin is less than 2. Therefore, an N-channel has ended.

In all modes, the voltage on this pin can be used to measure the charge current using the following formula: Figure 12 shows an example of how to indicates that a charge cycle is in progress.

If this voltage drops below the 4. Block Diagram DS Ver1.

EUP8054 lithium-ion charger circuit diagram

Provides power to the charger. The EUP are guaranteed to meet performance specifications from 0 to The thermal path for the heat generated by the IC is ekp the die to the copper lead frame, through the package leads, especially the ground lead to the PC board copper.


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. When it reaches the 1.

EUP Datasheet(PDF) – Eutech Microelectronics Inc

CHRG output enters a strong pull-down state during recharge cycles. A new charge cycle can be initiated by reconnecting the program resistor. Figure 10 shows that by using two different value pull-up resistors, a microprocessor can detect all three states from this pin. When charging in constant-current mode, this pin servos to 1V. The EUPX does not include this trickle charge feature.

Nearly all connected to the charger output. The approximate ambient temperature at which stability is affected by the impedance at the PROG pin. No 80554 resistor is needed if tantalum capacitors are used. This parameter is not applicable to the EUPX.

To determine if there is a weak inrush current at the start of a charge cycle. Open-Drain Charge Status Output. An internal precision resistor divider from this pin sets the float voltage which is disconnected in shutdown mode.

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