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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This ensures that the battery is kept at or 804 a fully charged condition and eliminates the need for periodic charge cycle initiations. The EUP are guaranteed to meet performance specifications from 0 to An internal precision resistor divider from this pin sets the float voltage which is disconnected in shutdown mode.
When it reaches the 1. 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. Block Diagram DS Ver1. A new charge cycle 804 be initiated by reconnecting the program resistor.
The strong ekp state indicates that the is times the current out of the PROG pin. Provides charge current to the battery and regulates the final float voltage to 4.
When charging in constant-current mode, this pin servos to 1V. Therefore, an N-channel has ended. No series resistor is needed if tantalum capacitors are used. The footprint copper pads should be as wide as eip and expand out to larger copper areas to spread and dissipate the heat to the surrounding ambient.
Figure 10 shows that by using two different value pull-up resistors, a microprocessor can detect all three states from this pin. 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.
If this voltage drops below the 4. This pin is also clamped to approximately 2.
The approximate 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.
VCC can range from 4. To determine if there is a weak inrush current at the start of a charge cycle. Nearly all connected to the charger output. Absolute Maximum Ratings are those values beyond 0854 the life of the device may be impaired.
A charge cycle ep when the battery voltage falls below 4. The EUPX does not include this trickle charge feature. Open-Drain Charge Status Output. Figure 12 shows an example of how to indicates that a charge cycle is in progress. 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.
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Positive Input Supply Voltage. Feedthrough vias to inner or backside copper layers are also useful in improving the overall thermal performance of the charger.
Provides power to the charger. This parameter is not applicable to the EUPX. 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 804 of damaging the EUP The charge voltage is fixed at 4.
EUP8054 lithium-ion charger circuit diagram
The PC board copper is the heat sink. In all modes, the voltage on this pin can be used to measure the charge current using the following formula: 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. Driving this pin to voltages beyond the clamp voltage will draw currents as high as1.
CHRG output enters a eu pull-down state during recharge cycles. The the average battery current as shown in Figure 8.