MB3813A Fujitsu, MB3813A Datasheet
MB3813A
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MB3813A Summary of contents
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... Precision with Constant-current Function) MB3813A/MB3833A/MB3843 DESCRIPTION The FUJITSU MB3813A/33A/43 are pulse width modulation (PWM) DC/DC converter ICs with independent output voltage and current setting capability. These products are covered by US Patent Number 6,147,477. 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 ...
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... MB3813A/MB3833A/MB3843 (Continued) • High precision reference voltage source : 2.5 V • High frequency operating capability : Max 500 kHz • On-chip current detector amplifier with wide in-phase input voltage range : • On-chip standby function • On-chip input voltage detector circuit • On-chip soft-start control circuit • ...
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... PIN ASSIGNMENT Vin1 1 IN1 2 IN2 3 IN2 4 IN1 CTL 7 Vin2 8 MB3813A/MB3833A/MB3843 (TOP VIEW) 16 GND 15 OUT SEL 9 VREF (FPT-16P-M05) 3 ...
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... Reference voltage output terminal Output voltage switching terminal “L” level output voltage : MB3813A 12.6 V MB3833A 8.4 V MB3843 “H” level output voltage : MB3813A 12.3 V MB3833A 8.2 V MB3843 Soft-start capacitor connection terminal Triangular wave frequency setting resistor connection terminal Triangular wave frequency setting capacitor connection terminal ...
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... BLOCK DIAGRAM MB3813A/MB3833A/MB3843 5 ...
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... MB3813A/MB3833A/MB3843 ABSOLUTE MAXIMUM RATINGS Parameter Power supply voltage Input voltage Control input voltage Select input voltage Output current Peak output current Allowable dissipation Storage temperature * : When mounted centimeters square dual-sided epoxy base board WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc ...
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... No warranty is made with respect to uses, operating conditions, or combinations not represented on the data sheet. Users considering application outside the listed conditions are advised to contact their FUJITSU representatives beforehand. MB3813A/MB3833A/MB3843 Condition Min MB3813A 12 MB3833A 8 MB3843 7 1 ...
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... V 1.0 10.0 mV MB3813A 1.0 10.0 mV MB3833A 1.0 10.0 mV MB3843 3.0 10.0 mV 1.8 2.0 2.2 V 0.2 0.35 V 10.2 11.0 11.8 V MB3813A 6.7 7.3 7.9 V MB3833A 5.8 6.3 6.8 V MB3843 1.0 2.0 V MB3813A 0.7 1.4 V MB3833A 0.57 1.2 V MB3843 150 300 A MB3813A 270 540 A MB3833A 310 620 A MB3843 1.0 1.0 A 1.4 1.0 0.6 A 180 200 220 kHz 12.474 12.60 12.726 V MB3813A 8.316 8.40 8.484 V MB3833A 4.158 4.20 4.242 V MB3843 12.41 12.60 12.79 V MB3813A 8.27 8.40 8.53 V MB3833A 4.13 4.20 4.26 V MB3843 (Continued) ...
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... V, IN2 4.2 V 1.0 7.0 3 4.1 1.2 5 1.7 8 Vin2 0 V 400 5 FB 1.5 V Vin1 SEL Value Unit Remarks Typ Max V MB3813A 8.20 8.282 V MB3833A 4.10 4.141 V MB3843 12.30 12.49 V MB3813A 8.20 8.33 V MB3833A 4.10 4.16 V MB3843 2.5 10.0 mV MB3813A 2.5 10.0 mV MB3833A 2.5 10.0 mV MB3843 1.0 2.0 mA MB3813A 1.0 2.0 mA MB3833A 1.0 2.0 mA MB3843 1.0 A MB3813A 1.0 A MB3833A 1.0 A MB3843 10.1 13.2 k MB3813A 5.9 7.7 k MB3833A 1.7 2.3 k MB3843 2.5 3 (Continued) 9 ...
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... Value Unit Remarks Min Typ Max 100* dB 800* kHz 2.3 2.5 V 0.8 0.9 V 120 60 A 0.6 2 100 110 100 150 MB3813A MB3833A MB3843 V/V MB3813A V/V MB3833A V/V MB3843 0.9 1.0 V 2.0 2 1.0 1.4 V 1.0 1.0 A (Continued) ...
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... CTL SEL CTL output 14 voltage “H” level SEL Value Unit Remarks Typ Max 18 V 0.8 V 100 200 A 1 MB3813A 18 V MB3833A 18 V MB3843 0.8 V MB3813A 0.8 V MB3833A 0.8 V MB3843 1.0 A 1.0 A 1.0 A 260 390 A 3.4 5 ...
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... MB3813A/MB3833A/MB3843 TYPICAL CHARACTERISTICS Reference voltage vs. Power supply voltage Power supply voltage V Reference voltage vs. Temperature 2.0 1.5 1.0 0.5 0.0 0.5 1.0 1.5 2 Temperature Control current vs. Control voltage 500 400 300 200 100 Control voltage V 12 Reference voltage vs Vin1 20.5 V CTL V CC ...
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... Triangular wave frequency vs. R resistance in1 CTL 5 V 100 k CT 100 pF CT 270 pF CT 330 1500 100 k R resistance ( ) T MB3813A/MB3833A/MB3843 Error amp. Threshold voltage vs. Temperature 2.0 Vin1 16 V 1.5 1.0 0.5 0.0 0.5 1.0 1.5 2 100 Temperature 180 135 10 k ...
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... V Vin1 CTL MB3843 OSC Z V Vin1 CTL 330 100 Temperature Vin1 CTL 5 V MB3833A MB3813A CTL Power supply voltage V (V) CC ...
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... PWM control signal. No external resistance is required at the error amplifier inversion input terminal, because the output voltage setting resistance is connected within the IC. The output voltage settings are defined as : MB3813A 12.6 V/12.3 V, MB3833A 8.4 V/8.2 V, MB3843 4.2 V/4.1 V, the optimum levels respectively for use with 3-cell, 2-cell and 1-cell lithium-ion batteries. ...
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... Protection Functions (1) Input voltage detector circuit (VIDET) When the input voltage supply from the AC adapter or other source detected at the Vin1 terminal (pin 1) falls below 11 V (MB3813A below 7.3 V (MB3833A below 6.3 V (MB3843) , the internal reference voltage circuit switches off. (2) Under voltage lockout circuit (UVLO) Power surges at power-on, or momentary under-voltage situations can cause abnormal operation in a control IC, which may lead to damage or deterioration in systems ...
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... This built-in circuit responds to rapid fluctuations in charging current such as can occur when inserting or removing a chargeable battery, by clamping an inverted input signal ( IN1 or IN2) from the error amps (Error Amp.1 or Error Amp.2) to suppress changes in output voltage. MB3813A/MB3833A/MB3843 RS output sensing resistance ) to the CT terminal (pin 13) and a timing ...
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... MB3813A/MB3833A/MB3843 CTL, SEL TERMINAL EQUIVALENT CIRCUITS CTL SEL 10 1.4 V ...
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... APPLICATION EXAMPLE MB3813A/MB3833A/MB3843 19 ...
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... MB3813A/MB3833A/MB3843 REFERENCE DATA Charging voltage vs. Charging current < MB3813A > 0.2 0.4 0.6 0.8 1.0 Charging current I (A) L Charging voltage vs. Charging current < MB3833A > 0.2 0.4 0.6 0.8 1.0 Charging current I (A) L Charging voltage vs. Charging current < MB3843 > 0.2 0.4 0.6 0.8 1.0 Charging current I ( ...
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... CTL (V) BATT ( (V) 5 CTL 0 0 MB3813A/MB3833A/MB3843 Soft-start operation waveforms < MB3813A > 200 400 600 800 < MB3833A > 200 400 600 800 < MB3843 > 200 400 600 800 V Vin CTL 330 Vin2 2 0.1 F ...
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... Workers should be grounded by a ground line with 250 k and ground. • Do not apply negative voltages. The use of negative voltages below 0.3 V may create parasitic transistors on LSI lines, which can cause abnomal operation. ORDERING INFORMATION Part number MB3813APFV MB3833APFV MB3843PFV resistance in series between the worker Package ...
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... LEAD No 0.65(.026) 0.24±0.08 (.009±.003) 0.10(.004) 1999 FUJITSU LIMITED F16013S-3C-5 C MB3813A/MB3833A/MB3843 Note These dimensions do not include resin protrusion. Note 2 ) Pins width and pins thickness include plating thickness. 0.17±0.03 (.007±.001) * 4.40±0.10 6.40±0.20 (.173±.004) (.252±.008) Details of " ...
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... MB3813A/MB3833A/MB3843 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 of semiconductor device applications, and are not intended to be incorporated in devices for actual use. Also, ...