MB3776A-P Fujitsu Microelectronics, Inc., MB3776A-P Datasheet

no-image

MB3776A-P

Manufacturer Part Number
MB3776A-P
Description
Switching Regulator Controller
Manufacturer
Fujitsu Microelectronics, Inc.
Datasheet
FUJITSU SEMICONDUCTOR
ASSP
Switching Regulator Controller
MB3776A
DESCRIPTION
FEATURES
• Wide supply voltage range: (2 V to 15 V)
• Wide oscillation frequency range, high-frequency oscillation: (10 kHz to 500 kHz)
• Push-pull output. Drive current set with external resistor
• Bulit-in idle period circuit
• Internally set error amplifier gain, few external components
• Bulit-in power-down function
PACKAGES
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.
DATA SHEET
8-pin Plastic DIP
(DIP-8P-M01)
For Power Supply Applications
8-pin Plastic SOP
(FPT-8P-M01)
8-pin Plastic SOL
(FPT-8P-M02)
8-pin Plastic SSOP
DS04-27201-3E
(FPT-8P-M03)

Related parts for MB3776A-P

MB3776A-P Summary of contents

Page 1

... 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 • ...

Page 2

... MB3776A PIN ASSIGNMENT –IN CLT (TOP VIEW (DIP-8P-M01) (FPT-8P-M01) (FPT-8P-M02) (FPT-8P-M03) FB OSC GND OUT ...

Page 3

... 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 ...

Page 4

... 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 ...

Page 5

... –30°C to +75°C dT Symbol Condition V — TH Symbol Condition C = 1000 3.0k DUTY 0 MB3776A ( Value Unit Min. Typ. Max. 487 507 527 mV –5 — –5 — –3 — –1.0 –0.2 1 ...

Page 6

... 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 ...

Page 7

... MEASURMENT CIRCUIT TEST INPUT CTL MB3776A SOURCE C = 1000 0 =820 B I 25000/R SOURCE MB3776A R T OUTPUT (mA ...

Page 8

... MB3776A DIAGRAM FB Terminal Waveform Saw-tooth Waveform Output 0 V Output Terminal Waveform 0 mA CTL Input Current I CTL V Power Supply Voltage ...

Page 9

... V 1.0 0.0 0 “H” Level output current I Timing resistor vs. Oscillator frequency 500 k 100 10000 MB3776A +25 C Output bias current “H” Level output 820 +25 C –6 –12 – ...

Page 10

... MB3776A (Continued) Control terminal voltage vs. Control terminal current –1.0 –0.5 0 0.0 0.4 0.8 Control terminal voltage V Power supply voltage vs. Input on voltage Power supply voltage V 10 Control terminal voltage vs –1 +25 C –0.5 0 1.2 1.6 2.0 (V) CTL (V) CC ...

Page 11

... 4.7 F – 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 ...

Page 12

... MB3776A ORDERING INFORMATION Part number MB3776A-P MB3776APF MB3776APNF MB3776APFV 12 Package 8-pin Plastic DIP (DIP-8P-M01) 8-pin Plastic SOP (FPT-8P-M01) 8-pin Plastic SOL (FPT-8P-M02) 8-pin Plastic SSOP (FPT-8P-M03) Remarks ...

Page 13

... FUJITSU LIMITED D08006S-2C-3 C 6.20±0.25 (.244±.010) 0.51(.020)MIN 0.25±0.05 (.010±.002) 0.46±0.08 (.018±.003) +0.30 1.52 –0 +.012 .060 –0 2.54(.100) TYP MB3776A 15°MAX 7.62(.300) TYP Dimensions in mm (inches). (Continued) 13 ...

Page 14

... MB3776A (Continued) 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 ...

Page 15

... M (.017±.004) 0.10(.004) MB3776A 1.55±0.20(.061±.008) 0.15±0.10 (STAND OFF) (.006±.004) 5.00±0.30 (.197±.012) 0.20±0.05 0.50±.020 (.008±.002) (.020±.008) Details of " ...

Page 16

... MB3776A (Continued) 8-pin Plastic SSOP (FPT-8P-M03) * 3.50±0.10 (.138±.004) INDEX 0.80(.0315) 0.35±0.10 TYP (.014±.004) 2.40(.094)REF 1994 FUJITSU LIMITED F08005S-1C This dimension does not include resin protrusion. +0.20 1.25 –0.10 +.008 .049 –.004 4.20±0.10 5.20(.205) (.165±.004) NOM " ...

Page 17

... 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 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, ...

Related keywords