MB3800PNF-G-BND-JN-EFE1

MB3800PNF-G-BND-JN-EFE1 Datasheet


MB3800

Part Datasheet
MB3800PNF-G-BND-JN-EFE1 MB3800PNF-G-BND-JN-EFE1 MB3800PNF-G-BND-JN-EFE1 (pdf)
Related Parts Information
MB3800PF-G-BND-JN-EFE1 MB3800PF-G-BND-JN-EFE1 MB3800PF-G-BND-JN-EFE1
MB3800PF-G-BND-JNE1 MB3800PF-G-BND-JNE1 MB3800PF-G-BND-JNE1
PDF Datasheet Preview
MB3800

Switching Regulator Controller

The MB3800 is a single-channel switching regulator control IC for low voltage applications incorporating a soft start function and short circuit detection function. The device has a low minimum operating voltage of V and is ideal for the power supply of battery-operated electronic equipment.
• Wide supply voltage operating range V to 15 V
• Low current consumption Typically mA in operation, 1 uA or less in stand-by
• High speed operation is possible Maximum 1 MHz
• The error amplifier gain is set inside the IC, so peripheral components are minimized.
• Incorporates a soft start circuit.
• Incorporates a timer-latch type short circuit detection circuit SCP .
• Totem-pole type output with adjustable on/off current for NPN transistors
• Incorporates a stand-by function.
• Two types of packages SOP-8 2 types

Application
• LCD monitor/panel
• Power supply module
• Portable apparatus etc.
• San Jose, CA 95134-1709
• 408-943-2600

MB3800

Contents

Description 1 Features 1 Application 1 Pin Assignment 3 Pin Description 3 Block Diagram 4 Absolute Maximum Ratings 4 Recommended Operating Conditions 5 Electrical Characteristics 6 Diagram 7 How to Set the Time Constant for Soft Start and

Short Circuit Detection 8 Soft Start 8 Short Circuit Protection 8

Typical Characteristics 9

Functional Description 12 Switching Regulator Function 12 Power Supply Control Function 12 Other Functions 13

Application Example 13

Notes On Use 14
Ordering Information 14

RoHS Compliance Information 14

Package Dimensions 15 Document History 17 Sales, Solutions, and Legal Information 18

Page 2 of 18

MB3800

Pin Assignment

IN SCP VCC BR/CTL

TOP VIEW

SOE008 SOB008

Pin Description

Pin No. 1 2 3 4 5 6 7 8

Symbol SCP VCC

BR/CTL OUT GND OSC FB

I Error amplifier inverting input pin

Soft start and SCP setting capacitor connection pin

Power supply pin

I Output current setting and control pin

O Totem-pole type output pin

Ground pin

Capacitor and resistor connection pin for setting the oscillation frequency

O Error amplifier output pin

Page 3 of 18

Block Diagram

MB3800

Reference voltage supply
36 kΩ

Error Amp
500 Ω

Sawtooth wave oscillator

V PWM

Comp. + + +

DTC V

Output drive control circuit
6 GND

Soft start SCP
2 SCP
4 BR/CTL

OUT 5
30 kΩ

Absolute Maximum Ratings

Parameter Power supply voltage Output source current Output sink current Allowable dissipation
Ordering Information

Part Number MB3800PF-❏❏❏E1 MB3800PNF-❏❏❏E1

Package 8-pin Plastic SOP SOE008 8-pin Plastic SOP SOB008

Remarks

RoHS Compliance Information

The LSI products of Cypress with “E1” are compliant with RoHS Directive , and has observed the standard of lead, cadmium, mercury, Hexavalent chromium, polybrominated biphenyls PBB , and polybrominated diphenyl ethers PBDE The product that conforms to this standard is added “E1” at the end of the part number.

Page 14 of 18

Package Dimensions

Package Code SOE008

MB3800

INDEX AREA

A A1 10
4 E1 E

TOP VIEW

C A-B D

BOTTOM VIEW

DETAIL A
b SIDE VIEW

SEATING PLANE C

C A-B D 8

GAUGE PLANE

A' L L1

DETAIL A
b SECTION A-A'

DIMENSION SYMBOL

MIN. NOM. MAX.
1 27 6
/ / ' , 0 1 6 , 2 1 6 5 , 1 0 , / / , 0 7 5
' , 0 1 6 , 2 1 , 1 * 1 ' 7 2 / 5 1 & , 1 * 3 5 6 0 < 0
' , 0 1 6 , 2 1 , 1 * ' , 1 & / 8 ' 0 2 / ' / 6 + ' , 0 1 6 , 2 1 , 1 * ' 2 6 1 2 7 , 1 & / 8 ' , 1 7 5 / ' / 6 + 2 5 3 5 2 7 5 8 6 , 2 1 , 1 7 5 / ' / 6 + 2 5 3 5 2 7 5 8 6 , 2 1 6 + / / 1 2 7 & ' P 3 5 6 , ' ' D Q G ' , 0 1 6 , 2 1 5 ' 7 5 0 , 1 ' ' 7 8 0 +
7 + 3 & * 7 2 3 0 < % 6 0 / / 5 7 + 1 7 + 3 & * % 2 7 2 0 ' , 0 1 6 , 2 1 , 1 * D Q 5 ' 7 5 0 , 1 7 + 2 8 7 5 0 2 6 7 5 0 2 7 + 3 / 6 7 , % 2 ' & / 8 6 , 9 2 0 2 / / 6 + 7 + % 5 % 8 5 6 * 7 % 8 5 6 1 ' , 1 7 5 / ' / 6 + % 8 7 , 1 & / 8 ' , 1 * 1 0 , 6 0 7 & % 7 + 7 2 1 % 2 7 2 0 2 7 + 3 / 6 7 , % 2 ' <
' 7 8 0 6 % 7 2 % ' 7 5 0 , 1 ' 7 ' 7 8 0 +
1 , 6 7 + 0 , 0 8 0 1 8 0 % 5 2 7 5 0 , 1 / 3 2 6 , 7 , 2 1 6 2 5 7 + 6 3 & , , ' 3 & * / 1 * 7 +
7 + ' , 0 1 6 , 2 1 3 / < 7 2 7 + / 7 6 & 7 , 2 1 2 7 + / ' % 7 1 P 7 2 P 5 2 0 7 + / 7 , 3
' , 0 1 6 , 2 1 E ' 2 6 1 2 7 , 1 & / 8 ' 7 + ' 0 % 5 3 5 2 7 5 8 6 , 2 1 / / 2 % / ' 0 % 5 3 5 2 7 5 8 6 , 2 1 6 + / / % P 7 2 7 / , 1 & 6 2 7 + E ' , 0 1 6 , 2 1 0 , 0 8 0 7 5 , & 2 1 ' , 7 , 2 1 7 + ' 0 % 0 1 2 % / 2 & 7 2 7 + / 2 5 ' , 8 2 7 + 2 7
7 + , 6 & + 0 5 7 8 5 , 6 2 3 7 , 2 1 / / , 7 , 6 1 2 7 3 5 6 1 7 + 1 3 , 1 , ' 1 7 , , 0 8 6 % / 2 & 7 , 7 + , 7 + , 1 ' 5 , 1 ' , & 7 '
, 6 ' , 1 ' 6 7 + 9 5 7 , & / ' , 6 7 1 & 5 2 0 7 + 6 7 , 1 * 3 / 1 7 2 7 + / 2 6 3 2 , 1 2 7 + 3 & * % 2 ' & / 8 ' , 1 * 7 + / , 1 2 5 7 + 5 0 1 + 1 & 0 1 2 & 9 , 7 ' 2 3 & * & 2 1 , * 8 5 7 , 2 1 6

JEDEC SPECIFICATION NO. REF N/A

Page 15 of 18

MB3800

Package Code SOB008
Updated Ordering Information:

Change the package name from FPT-8P-M01 to SOE008

Change the package name from FPT-8P-M02 to SOB008
5731413

HIXT
04/21/2017

Deleted the part numbers, MB3800PF- ❏❏❏ and MB3800PNF- ❏❏❏

Deleted the words in the Remarks, “Lead Free version”

Updated Package Dimensions Updated to Cypress format

Deleted “Marking Format Lead Free version ”

Deleted “Labeling Sample Lead free version ”

Deleted “MB3800PF- ❏❏❏ E1, MB3800PNF- ❏❏❏ E1, Recommended Conditions of

Moisture Sensitivity Level”

Page 17 of 18

MB3800

Sales, Solutions, and Legal Information

Worldwide Sales and Design Support

Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at Cypress Locations.

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Solutions

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Datasheet ID: MB3800PNF-G-BND-JN-EFE1 508282