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MB3888

Features: • Output voltage setting using external resistor : 1 cell to 4 cells• High efficiency : 96% (VIN = 19 V, Vo = 16.8 V)• Wide range of operating supply voltages : 8 V to 25 V• Output voltage setting accuracy : 5 V ± 0.74% (Ta = -10 °C to 85 °C)• Charging curre...

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SeekIC No. : 004413318 Detail

MB3888: Features: • Output voltage setting using external resistor : 1 cell to 4 cells• High efficiency : 96% (VIN = 19 V, Vo = 16.8 V)• Wide range of operating supply voltages : 8 V to 25...

MB3888 Data Sheet

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Part Number:
MB3888
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

• Output voltage setting using external resistor                                             : 1 cell to 4 cells
• High efficiency                                                                                               : 96% (VIN = 19 V, Vo = 16.8 V)
• Wide range of operating supply voltages                                                     : 8 V to 25 V
• Output voltage setting accuracy                                                                   : 5 V ± 0.74% (Ta = -10 °C to 85 °C)
• Charging current accuracy                                                                            : ±5%
• Built-in frequency setting capacitor enables frequency setting using external resistor only
• Oscillation frequency range                                                                          : 100 kHz to 500 kHz
• Built-in current detection amplifier with wide in-phase input voltage range : 0 V to VCC
• In standby mode, leave output voltage setting resistor open to prevent inefficient current loss
• Built-in standby current function                                                                  : 0 mA (standard)
• Built-in soft-start function independent of loads
• Built-in totem-pole output stage supporting P-channel MOS FETs devices


Pinout

Connection Diagram


Specifications

Parameter Symbol Conditions Rating Unit
Min. Max.
Power supply voltage VCC VCC,VCC(O)terminal - 28 V
Output current IOUT - - 60 mA
Peak output current IOUT Duty 5% (t =1 / fOSC*Duty) - 700 mA
Power dissipation PD Ta +25 °C - 540* mW
Storage temperature TSTG - -55 +125 °C
* : The package is mounted on the dual-sided epoxy board (10 cm*10 cm) .
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
                 temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.


Description

The MB3888 is a DC/DC converter IC suitable for down-conversion, using pulse-width (PWM) charging and enabling output voltage to be set to any desired level from one cell to four cells.

The MB3888 provides a broad power supply voltage range and low standby current as well as high efficiency, making it ideal for use as a built-in charging device in products such as notebook PC.

The MB3888 is covered by US Patent Number 6,147,477.




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