MB3776A Fujitsu, MB3776A Datasheet
MB3776A
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MB3776A Summary of contents
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... For Power Supply Applications Switching Regulator Controller MB3776A DESCRIPTION MB3776A is a PWM system switching regulator controller. Because of its low operating supply voltage and power- down, the MB3776A is ideal for use in DC/DC converters for battery-powered portable equipment. FEATURES • Wide supply voltage range • ...
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... MB3776A PIN ASSIGNMENT - IN CLT (TOP VIEW (DIP-8P-M01) (FPT-8P-M01) (FPT-8P-M02) (FPT-8P-M03) FB OSC GND OUT ...
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... BLOCK DIAGRAM 0.6 V Reference CTL 2 voltage 0.1 V 1.25 V Internal bias & reference voltage Error Amp 100 + 0 OSC 7 Saw-tooth waveform 0 Comp - Output drive + control + 470 0 GND MB3776A OUT ...
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... MB3776A ABSOLUTE MAXIMUM RATINGS Parameter Symbol Power supply voltage Error amp. input voltage Output source current Output sink current Power dissipation Operating temperature Storage temperature *: The packages are mounted on the epoxy board (10 cm WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc ...
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... –30°C to +75°C dT Symbol Condition V — TH Symbol Condition C = 1000 3.0 k DUTY 0 MB3776A ( Value Unit Min Typ Max 487 507 527 mV –5 — –5 — –3 — –1.0 – ...
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... MB3776A 5. Output Section Parameter Output source current Output sink current High-level output voltage Output voltage 6. Control Section Parameter Input off condition Input on condition Control terminal current 7. All Device Parameter Stand by current Average supply current 6 Symbol Condition 820 , SOURCE ...
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... DIAGRAM FB Terminal Waveform Saw-tooth Waveform Output 0 V Output Terminal Waveform 0 mA CTL Input Current I CTL V Power Supply Voltage MB3776A SOURCE C = 1000 0 =820 B I 25000/R SOURCE MB3776A R T OUTPUT (mA ...
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... MB3776A TYPICAL CHARACTERISTIC Output bias current vs. Output source current - 100 200 300 400 Output bias current I "L" Level output 200 200 100 100 "L" Level output current I Ambient temp. vs. Oscillator frequency ...
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... Power supply voltage vs. Input on voltage Power supply voltage V Control terminal voltage vs 1 +25˚C - 0.5 0 1.6 2.0 0 (V) CTL Ta = +25˚ (V) CC MB3776A Control terminal current +25˚ Control terminal voltage V (V) CTL 9 ...
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... 4 CTL 2 k 820 Synchronization To synchronize MB3776A controllers, the OSC terminal of each IC is shared and the same specified capacitor and resistor used on a signal IC application is connected for self-excitation oscillation. The CTL terminal controls power on/off of each IC 1000 pF ...
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... Applying a negative voltage of 0 less to an LSI may generate a parasitic transistor, resulting in malfunction. ORDERING INFORMATION Part number MB3776A-P MB3776APF MB3776APNF MB3776APFV resistors in series. Package 8-pin Plastic DIP (DIP-8P-M01) 8-pin Plastic SOP (FPT-8P-M01) 8-pin Plastic SOP (FPT-8P-M02) 8-pin Plastic SSOP (FPT-8P-M03) MB3776A Remarks 11 ...
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... MB3776A PACKAGE DIMENSIONS 8-pin Plastic DIP (DIP-8P-M01) 4.36(.172)MAX 3.00(.118)MIN +0.30 0.99 –0 +.012 .039 –0 +0.35 0.89 –0.30 +.014 .035 –.012 1994 FUJITSU LIMITED D08006S-2C +0.40 9.40 –0.30 +.016 .370 –.012 1 PIN INDEX 6.20±0.25 (.244±.010) 0.51(.020)MIN 0.25±0.05 (.010±.002) 0.46±0.08 (.018± ...
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... Note 4) Pins width do not include tie bar cutting remainder. 0.17 .007 * 2 5.30±0.30 7.80±0.40 (.209±.012) (.307±.016) "A" 0.47±0.08 0.13(.005) M Dimensions in mm (inches) . Note : The values in parentheses are reference values. MB3776A +0.03 –0.04 +.001 –.002 Details of "A" part +0.25 2.00 –0.15 (Mounting height) +.010 .079 –.006 0.25(.010) 0~8 ˚ ...
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... MB3776A 8-pin Plastic SOP (FPT-8P-M02) +0.25 +.010 * 1 5.05 .199 –0.20 –.008 1.27(.050) 0.10(.004) 0.10(.004) 2002 FUJITSU LIMITED F08004S-c-4 Note These dimensions include resin protrusion. Note These dimensions do not include resin protrusion. Note 3) Pins width and pins thickness include plating thickness. ...
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... Details of "A" part 1.25 .049 "A" 0~8 ˚ 0.10(.004) M 0.50±0.20 (.020±.008) 0.60±0.15 (.024±.006) Dimensions in mm (inches) . Note : The values in parentheses are reference values. MB3776A +0.20 –0.10 (Mounting height) +.008 –.004 0.25(.010) 0.10±0.10 (.004±.004) (Stand off) 15 ...
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... MB3776A 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, such as descriptions of function and application circuit examples, in this document are presented solely for the purpose of reference to show examples of operations and uses of Fujitsu semiconductor device ...