MB3833A Fujitsu Media Devices, MB3833A Datasheet
MB3833A
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MB3833A Summary of contents
Page 1
... SEL pin enables output voltage selection • 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 PACKAGE Output voltage MB3813A MB3833A MB3843 1.0% 16-pin plastic SSOP (FPT-16P-M05) DS04-27700-3E Part number ...
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... MB3813A/MB3833A/MB3843 (Continued) • 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 2 ...
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... PIN ASSIGNMENT Vin1 : 1 IN1 : 2 IN2 : 3 -IN2 : 4 -IN1 : CTL : 7 Vin2 : 8 MB3813A/MB3833A/MB3843 (Top view GND 15 : OUT SEL 9 : VREF (FPT-16P-M05) 3 ...
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... Output voltage switching pin “L” level output voltage: MB3813A 12.6 V MB3833A 8.4 V MB3843 4.2 V “H” level output voltage: MB3813A 12.3 V MB3833A 8.2 V MB3843 4.1 V Soft start capacitor connection pin Triangular wave frequency setting resistor connection pin Triangular wave frequency setting capacitor connection pin Power supply pin ...
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... BLOCK DIAGRAM MB3813A/MB3833A/MB3843 5 ...
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... IN V — CTL V — SEL I — Duty Duty) O OSC Tstg — Condition MB3813A MB3833A MB3843 — Vin1, IN1, IN2 Vin2 — — Duty Duty) OSC — — — — Value Unit Min. Max. — — — ...
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... Typ. Max. 2.500 2.525 V 1.0 10.0 mV MB3813A 1.0 10.0 mV MB3833A 1.0 10.0 mV MB3843 3.0 10.0 mV 2.0 2.2 V 0.2 0.35 V 11.0 11.8 V MB3813A 7.3 7.9 V MB3833A 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 A –1.0 –0.6 A 200 220 kHz 12.60 12.726 V MB3813A 8.40 8.484 V MB3833A 4.20 4.242 V MB3843 12.60 12.79 V MB3813A 8.40 8.53 V MB3833A 4.20 4.26 V MB3843 (Continued) 7 ...
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... +25 C) SEL Value Unit Remarks Typ. Max. 12.30 12.423 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 MB3813A k 5.9 7.7 k MB3833A 1.7 2.3 k MB3843 2.5 3.3 k –30 — nA — 100* — dB 800* — kHz 2.5 — ...
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... MB3813A 100 110 mV MB3833A MB3833A 100 110 mV MB3843 MB3843 100 150 MB3813A MB3833A MB3843 — V/V MB3813A 25 29 V/V MB3833A 25 29 V/V MB3843 1.0 — V 2.0 2 1.0 1.4 V — 1.0 A — — 0.8 V 100 200 A — 1.0 A (Continued) 9 ...
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... CC 14 CTL = 0 V — “H” level 14 at output voltage — +25 C) SEL Value Unit Remarks Typ. Max. — MB3813A — MB3833A — 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 5.4 mA ...
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... Temperature Control current vs. Control voltage 500 400 300 200 100 Control voltage VCTL (V) MB3813A/MB3833A/MB3843 Reference voltage vs. VREF load current VREF load current I Reference voltage vs. Control voltage 5 = Vin1 = ...
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... MB3813A/MB3833A/MB3843 Error amp. threshold voltage vs. Temperature 2.0 1.5 1.0 0.5 0.0 –0.5 –1.0 –1.5 –2.0 –40 – Temperature Error Amp. gain, phase vs. Frequency –10 –20 –30 – 100 k Frequency f (Hz) Triangular wave frequency vs 100 ...
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... Vin1 = CTL = MB3843 0 0 Power supply voltage OSC Vin1 = CTL = 330 100 Tenperature Vin1 = +25 C CTL = 5 V MB3833A MB3813A CTL = ( ...
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... PWM control signal. No external resistance is required at the error amplifier inversion input pin, 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 pin (pin 1) falls below 11 V (MB3813A), or below 7.3 V (MB3833A), or 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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... MB3813A/MB3833A/MB3843 METHOD OF SETTING THE CHARGING CURRENT The charging current level (output limit current level) is set at the Vin2 pin (pin 8). Charging current level (output limit current level (MAX) [ METHOD OF SETTING THE SOFT START TIME • At start up, the capacitor (Cs) connected to the CS pin (pin 11) begins charging. The error amplifier compares the soft start setting voltage, which is proportional to the CS pin voltage, to the output feedback voltage and produces a soft start by varying the ON duty at the OUT pin (pin 15) ...
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... APPLICATION EXAMPLE MB3813A/MB3833A/MB3843 17 ...
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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 (A) L 1.2 1.4 1.2 1.4 1.2 1.4 (Continued) ...
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... CS ( CTL ( MB3813A/MB3833A/MB3843 Soft start operation waveforms <MB3813A> Tek 100 200 400 600 800 1000 <MB3833A> Tek 100 200 400 600 800 <MB3843> Tek 100 200 400 600 800 V ...
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... Workers should be grounded by a ground line with 250 resistance in series between the worker 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 20 Package 16-pin plastic SSOP (FPT-16P-M05) Remarks ...
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... INDEX LEAD No 0.65(.026) 0.24±0.08 (.009±.003) 0.10(.004) 1999 FUJITSU LIMITED F16013S-3C-5 C MB3813A/MB3833A/MB3843 * : These dimensions do not inclule resin protrusion. 0.17±0.03 (.007±.001) * 4.40±0.10 6.40±0.20 (.173±.004) (.252±.008) Details of "A" part "A" 0.13(.005) M 0.50± ...
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... MB3813A/MB3833A/MB3843 FUJITSU LIMITED For further information please contact: Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 4-1-1, Kamikodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa 211-8588, Japan Tel: +81-44-754-3763 Fax: +81-44-754-3329 http://www.fujitsu.co.jp/ North and South America FUJITSU MICROELECTRONICS, INC. 3545 North First Street, San Jose, CA 95134-1804, U ...