MB3841PF-G-BND Fujitsu Microelectronics, Inc., MB3841PF-G-BND Datasheet
MB3841PF-G-BND
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MB3841PF-G-BND Summary of contents
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FUJITSU SEMICONDUCTOR DATA SHEET ASSP For Power Supply Applications Power Management Switch IC MB3841 DESCRIPTION The FUJITSU MB3841 is a one-channel power management switch IC with extremely low on resistance. The MB3841 is designed for a variety of switching applications, ...
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MB3841 PIN ASSIGNMENT CONTROL SS CURRENT O.C GND V CC OUT (TOP VIEW) ...
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PIN DESCRIPTION Pin no. Symbol Control signal input pin. Set “H” to turn the switch on, “L” to turn the switch off. 1 CONTROL At 0 less, the chip is in STBY state and current consumption is less ...
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MB3841 BLOCK DIAGRAM V IN Charge pump SS OSC V CC BGR CONTROL GND 4 SW load current detection COMP (HYS COMP (HYS) OUT CURRENT Temperature protection COMP DISCHARGE O.C ...
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ABSOLUTE MAXIMUM RATINGS Parameter Symbol Input voltage V Power supply voltage V Control voltage V CTL Switch current I SW Allowable dissipation P Storage temperature T STG WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, ...
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MB3841 ELECTRICAL CHARACTERISTICS Parameter Symbol Switch resistance IN1 IN pin disable current I IN2 I IN3 I CC1 V power supply current CC I CC2 V IUH UVLO threshold V IUL UVLO histeresis spread V IUHY CONTROL ...
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DIAGRAM 1. Normal operation CONTROL V OUT O.C DISCHARGE logic Fall CONTROL V OUT O.C DISCHARGE logic ON 1. ...
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MB3841 short OUT CONTROL V OUT O.C Over current latch DISCHARGE logic ON 8 1.15 V Latch set Latch release OFF ON ...
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TYPICAL CHARACTERISTICS 1. R vs. Limit Current Characteristics LIM 10 1 0.1 1000 2. C vs. T (SS) Characteristics SS ON 100 10 1 0.1 100 R – l LIM SW 10000 100000 LIM C – t ...
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MB3841 3. SW Resistance Temperature Characteristics Temperature dependency of SW resistance (V 100 voltage dependency of SW resistance (l IN 100 ...
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FUNCTIONAL DESCRIPTION Current Limit Setting The MB3841 provides highly accurate switching current setting, in the range 100 20% (with limit setting current placing resistance between the CURRENT and GND pins. Because the ...
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MB3841 TYPICAL APPLICATION Control signal LIM 12 O.C CONTROL GND SS V CURRENT CC OUT V IN Pull up resistance load ...
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SAMPLE APPLICATIONS (1) Bus Supplied Hub (GANG Mode Connection) Bus Supply (Up-board USB controller MB3841 CONTROL O GND R LIM V CURRENT CC V OUT IN MB3841 Pull up resistance Down-port 100 mA max/port 13 ...
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MB3841 Self Supplied Hub (NON-GANG Mode Connection) (2) USB controller Self supply MB3841 Pull up resistance CONTROL O GND R LIM V CURRENT CC V OUT IN MB3841 CONTROL O.C Pull C ...
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USAGE PRECAUTION 1. Never use settings exceeding maximum rated conditions. Exceeding maximum rated conditions may cause permanent damage to the LSI. Also recommended that recommended operating conditions be observed in normal use. Exceeding recommended operating conditions may adversely ...
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MB3841 PACKAGE DIMENSION 8-pin Plastic SOP (FPT-8P-M01) +0.25 +.010 6.35 .250 –0.20 –.008 INDEX 1.27(.050) TYP 3.81(.150)REF "A" 0.10(.004) 1994 FUJITSU LIMITED F08002S-4C 5.30±0.30 7.80±0.40 (.209±.012) (.307±.016) 0.45±0.10 Ø0.13(.005) M (.018±.004) 2.25(.089)MAX 0.05(.002)MIN (STAND OFF) +0.40 6.80 –0.20 ...
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MB3841 FUJITSU LIMITED All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information and circuit diagrams in this document are presented as examples ...