U6229B datasheet(1/8 Pages) TEMIC

No de pièce	U6229B

Description	DC/DC Converter - Power Supply 28 V

Download	8 Pages

Scroll/Zoom	100%

Fabricant	TEMIC [TEMIC Semiconductors]

Site Internet	http://www.temic.de

Logo

1 / 8 page

U6229B

Preliminary Information

Rev. A1, 21-Apr-99

1 (8)

DC/DC Converter – Power Supply 28 V

Description

The U6229B is a multifunctional power supply IC which

provides four different voltages dedicated to supply

components

of

complex

microcontroller

systems.

Supplied by a battery voltage in the wide range from 6 V

to 26 V, the U6229B generates typically 28.4 V with a

step-up converter, PWM, external power MOSFET and

150

mH inductivity. This voltage is fed to a step-down

converter with external 150

mH inductivity to generate a

7-V auxiliary voltage with a small ripple. By means of

this voltage, two linear regulators with only a small power

dissipation provide a constant 5-V (

±3%) supply for

microcontrollers and an even more accurate 5-V (

±2%)

supply as a reference for sensors and a/d converters.

Features

D Voltage outputs

– 28.4-V step-up converter with I

v 1.2 A

– 7-V step-down converter with I

v400 mA

– 5-V logic supply with I

v14 mA

– 5-V reference voltage with I

v14 mA

D Logic input ENABLE

– Enables the step-up converter

D Analog input VKL15

– Energy-reserve mode switches off the step-up

converter at VBatt < 5.25 V

– Controls start-up behavior

D Logic output NRES

– N-reset output with over/ under voltage

monitoring of both 5-V supplies

Ordering Information

Extended Type Number

Package

Remarks

U6229B

SO20

Block Diagram

Step-up

PWM

Step-down

Logic

supply

Reference

voltage

Start-up circuit

and

over voltage

protection

Oscillator

Internal

reference

Over / under

voltage

control

VCC / VREF

VBL

VA1

VHL

VH

VCC

VREF

28.4 V

Supply

7 V

Supply

5 V

Logic

supply

5 V

Reference

supply

GATE

SOURCE

SGND

VKL15

VBatt

ENABLE

GND

OSC

RSET

AGND

NRES

96 12284

converter

Figure 1. Block diagram with external circuit

Numéro de pièce similaire - U6229B

Fabricant	No de pièce	Fiches technique	Description
TEMIC Semiconductors	U6220B	183Kb / 14P	1.3 GHz PLL for TV- and VCR- Tuner
List of Unclassifed Man...	U62256	78Kb / 9P	STANDARD 32K X 8 SRAM
Zentrum Mikroelektronik...	U62256A	164Kb / 10P	STANDARD 32K X 8 SRAM
	U62256ADA07	164Kb / 10P	STANDARD 32K X 8 SRAM
	U62256ADA07G1	164Kb / 10P	STANDARD 32K X 8 SRAM

More results

Description similaire - U6229B

Fabricant	No de pièce	Fiches technique	Description
Texas Instruments	LM2825	976Kb / 21P	[Old version datasheet] Integrated Power Supply 1A DC-DC Converter
National Semiconductor ...	LM2825	633Kb / 12P	Integrated Power Supply 1A DC-DC Converter
Texas Instruments	LM2825N-50	945Kb / 21P	[Old version datasheet] LM2825 Integrated Power Supply 1A DC-DC Converter
Toshiba Semiconductor	TA8161F	333Kb / 8P	DC/DC CONVERTER SYSTEM IC FOR POWER SUPPLY
Analog Devices	ADDC02828SA	204Kb / 16P	28 V/100 W DC/DC Converter with Integral EMI Filter REV. 0
	ADDC02805S	186Kb / 16P	28 V/100 W DC/DC Converter with Integral EMI Filter REV. A
	ADDC02828SA	183Kb / 16P	28 V/100 W DC/DC Converter with Integral EMI Filter REV. 0
Murata Power Solutions ...	D1U54-D-2000-12	784Kb / 8P	54mm 1U Front End DC-DC Power Supply Converter
C&D Technologies	TPS_DNX301	130Kb / 4P	DC/DC Power Supply
Toshiba Semiconductor	CMF02TE12L.Q	159Kb / 4P	Switching Mode Power Supply Applications DC/DC Converter Applications

More results

U6229B Fiches technique(PDF) 1 Page - TEMIC Semiconductors

U6229B Fiches technique(HTML) 1 Page - TEMIC Semiconductors

Numéro de pièce similaire - U6229B

Description similaire - U6229B

Html Pages

1 2 3 4 5 6 7 8

Fiches technique Télécharger

Lien URL