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MB39A106

Features: • Built-in bootstrap diode• Built-in timer-latch overcurrent protection circuit (requiring no current sense resistor)• Built-in timer-latch overvoltage protection circuit• Synchronous rectification system providing high efficiency• Power supply voltage range...

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SeekIC No. : 004413328 Detail

MB39A106: Features: • Built-in bootstrap diode• Built-in timer-latch overcurrent protection circuit (requiring no current sense resistor)• Built-in timer-latch overvoltage protection circuit...

MB39A106 Data Sheet

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Part Number:
MB39A106
Supply Ability:
5000

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

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Product Details

Description



Features:

• Built-in bootstrap diode
• Built-in timer-latch overcurrent protection circuit (requiring no current sense resistor)
• Built-in timer-latch overvoltage protection circuit
• Synchronous rectification system providing high efficiency
• Power supply voltage range: 6.5 V to 18 V
• PWRGOOD terminals (open-drain) to output the protection status
• Symmetrical-phase system reducing the input capacitor loss
• Built-in channel control function
• Reference voltage: 3.5 V ± 1 %
• Error amplifier threshold voltage: 1.23 V ± 1 % (0 °C to + 85 °C)
• Support for frequency setting using an external resistor (Frequency setting capacitor integrated)
• Oscillation frequency range: 100 kHz to 500 kHz
• Standby current : 0 mA (Typ)
• Built-in circuit for load-independent soft-start and discharge control
• Built-in totem-pole output for Nch MOS FET


Pinout

Connection Diagram


Specifications

Parameter Symbol Conditions Rating Unit
Min Max
Power-supply voltage VCC - - 20 V
Boot voltage VCB CB terminal - 25 V
Output current IO - - 120 mA
Peak output current IOP Duty 5%
(t = 1/fOSC*Duty)		 - 800 mA
Power dissipation PD Ta +25 °C - 1390* mW
Storage temperature Tstg - -55 +125 °C


* : The packages are 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 MB39A106 is a symmetrical-phase type of two-channel, DC/DC converter IC using pulse width modulation (PWM) , incorporating an overcurrent protection circuit (requiring no current sense resistor) and an overvoltage protection circuit. Providing high output driving capabilities, the MB39A106 is suitable for down-conversion.

The MB39A106 adopts both synchronous rectification to provide high efficiency and symmetrical phasing (two anti-phase triangular waves) which contributes to making the input capacitor small.

The MB39A106 contains a Bootstrap diode resulting in a reduced number of components used. It also contains a variety of protection features which output the protection status upon detection of an overvoltage or overcurrent while reducing the number of external protective devices required.

The MB39A106 is an ideal built-in power supply for driving products with high speed CPU's such as home TV game devices and notebook PC's.




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