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Part Number: MB3813A

 

 

Package Cooled: TSSOP

D/C: 96+

Description: The FUJITSU MB3813A/33A/43 are pulse width modulation (PWM) DC/DC converter ICs with independent output voltage and cur...


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MB3813A General Description


The FUJITSU MB3813A/33A/43 are pulse width modulation (PWM) DC/DC converter ICs with independent output voltage and current setting capability.

The use of on-chip output setting resistance enables high precision output voltage control. Also, an output voltage switching feature for use with either graphite-electrode or coke-electrode lithium-ion batteries makes this IC ideal for internal battery chargers in notebook personal computers and similar applications.
Cell count Output voltage Part number
3-cell 12.6 V/12.3 V MB3813A
2-cell 8.4 V/8.2 V MB3833A
1-cell 4.2 V/4.1 V MB3843

MB3813A Maximum Ratings

Parameter Symbol Condition Value Unit
Min. Max.
Power supply voltage VCC - - 20 V
Input voltage VIN Vin1, IN1, IN2 - 20 V
Control input voltage VCTL - - 20 V
Select input voltage VSEL - - 20 V
Output current IO - - 50 mA
Peak output current IO Duty5% (t = fOSC*Duty) - 500 mA
Allowable dissipation PD Ta+25°C - 440* mW
Storage temperature Tstg - 55 +125 °C
* :When mounted on a 10 by 10 centimeters square dual-sided epoxy base board
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.

MB3813A Features

• Output setting resistance is on-chip for high precision output voltage: ±1.0%
• SEL pin enables output voltage selection
• High precision reference voltage source: 2.5 V ± 1.0%
• High frequency operating capability: max. 500 kHz
• On-chip current detector amplifier with wide in-phase input voltage range: 0 V to VCC
• On-chip standby function
• On-chip input voltage detector circuit
• On-chip soft start control circuit
• On-chip output overshoot protection circuit for rapid load changes
• On-chip totem-pole output circuits for P-ch. MOS FET devices

MB3813A Connection Diagram

MB3813A Connection Diagram

MB3813A datasheet

MB3813A
PDF/DataSheet Download

  • Datasheet: MB3813A
  • File Size: 257554 KB
  • Manufacturer: FUJITSU [Fujitsu Media Devices Limited]
  • Click here to Download

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