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MB3845

Features: • Low on resistance switch (typ. 100m)• Low input voltage operation (2.5 V to 5.5 V)• Switch current (max. 0.6 A)• UVLO :VIN threshold 2.3V/2.1 V hysteresis 200 mV• ENABLE :EN threshold EN 1.4V/1.6 V for MB3842, EN 1/2 VIN for MB3845 :Power supply current at...

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SeekIC No. : 004413300 Detail

MB3845: Features: • Low on resistance switch (typ. 100m)• Low input voltage operation (2.5 V to 5.5 V)• Switch current (max. 0.6 A)• UVLO :VIN threshold 2.3V/2.1 V hysteresis 200 mV&...

MB3845 Data Sheet

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Part Number:
MB3845
Supply Ability:
5000

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

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Product Details

Description



Features:

• Low on resistance switch (typ. 100m)
• Low input voltage operation (2.5 V to 5.5 V)
• Switch current (max. 0.6 A)
• UVLO     :VIN threshold                                             2.3V/2.1 V hysteresis 200 mV
• ENABLE :EN threshold                                               EN 1.4V/1.6 V for MB3842, EN 1/2 VIN for MB3845
                :Power supply current at output off = 0A  EN < 0.8V for MB3842, EN = VIN for MB3845
• External setting for soft start time and switch current limit.
• Over-temperature detection (switch latched off), over-current detection (not latched)
• OC pin flag set following overcurrent detection, over-temperature detection, or UVLO detection.
• Reverse current prevention at OFF (VIN 1.5 V)
• Either channel may be operated alone.


Pinout

Connection Diagram


Specifications

Parameter Symbol Condition Rating Unit
Min. Max.
Power supply voltage VIN - 0.3 7.0 V
ENABLE voltage VEN - 0.3 7.0 V
Switch current ISW - - 1.8 A
Power dissipation
 PD Ta = +85°C - 216 mW
Storage temperature Tstg - -55 +125 °C
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 MB3845 is a power management switch with built-in 2-channel low-on resistance (typ. 100m) switch. Output control is by means of a control signal, and the MB3842 is designed for high-active operation (output on when EN is Hi), while the MB3845 is designed for low-active operation (output on when EN is low.)

To provide adaptability to a variety of operations, the MB3845 features low input voltage (VIN > 2.5V) operation and stable low-on resistance independent of input voltage. The switching current limit can be set from 100mA to 600mA by using external resistance, and when overcurrent conditions are detected the OC output goes low to provide an external notification signal.

MB3845 is divided between the two channels, which operate independently of each other. In addition, an off-state reverse current prevention function is provided to ensure accurate on/off switching action.




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