ALTAIR04-900 datasheet(1/29 Pages) STMICROELECTRONICS

Part #	ALTAIR04-900

Description	Off-line all-primary-sensing switching regulator

PDF	29 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

1 / 29 page

January 2011

Doc ID 18211 Rev 2

1/29

29

ALTAIR04-900

Off-line all-primary-sensing switching regulator

Features

■ Primary side constant voltage operations with

no optocoupler

■ Adjustable and main-independent maximum

output current for safe operations during

overload/short circuit conditions

■ 900 V avalanche rugged internal power section

■ Quasi-resonant valley switching operation

■ Low standby consumption

■ Overcurrent protection against transformer

saturation and secondary diode short circuit

■ SO16 package

Applications

■ SMPS for energy metering

■ Auxiliary power supplies for 3-phases input

industrial systems

■ AC-DC adapters

Description

ALTAIR04-900 is a high-voltage all-primary-

sensing switcher intended for operating directly

from the rectified mains with minimum external

parts. It combines a high-performance low-

voltage PWM controller chip and a 900 V

avalanche-rugged power section in the same

package.

SO16N

Figure 1.

Block diagram

3.3 V

ZCD/F B

I FF

STA RT ER

SOURCE

TURN -ON

LOGI C

+Vi

n

+V out

Istart-up

Int ernal s upply bus

Vref

Intern.

s upply

bus

DRA IN

BLA NKING

TIME

LE B

Vc c

Iref

2.5 V

R

S

Q

COMP

-

+

-

+

-

S/H

DE MAG

LOGIC

GND

S

R

Q

IREF

R

P ROT ECTION &

FE EDFORWARD

LOGI C

Prot

IFF

Vc

-

+

1 V

S

R

Q

UV LO

Prot

RFF

SUPP LY

& UV LO

Rfb

Rz cd

Rsens e

Rcomp

Cc om p

Cref

3.3 V

ZCD/F B

I FF

STA RT ER

SOURCE

TURN -ON

LOGI C

+Vi

n

+V out

Istart-up

Int ernal s upply bus

Vref

Intern.

s upply

bus

DRA IN

BLA NKING

TIME

BLA NKING

TIME

LE B

Vc c

Iref

2.5 V

R

S

Q

COMP

-

+

-

+

-

+

-

+

-

S/H

DE MAG

LOGIC

DE MAG

LOGIC

GND

S

R

Q

S

R

Q

IREF

R

P ROT ECTION &

FE EDFORWARD

LOGI C

P ROT ECTION &

FE EDFORWARD

LOGI C

Prot

IFF

Vc

-

+

-

+

1 V

S

R

Q

S

R

Q

UV LO

Prot

RFF

SUPP LY

& UV LO

Rfb

Rz cd

Rsens e

Rcomp

Cc om p

Cref

www.st.com

Similar Part No. - ALTAIR04-900

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	ALTAIR05T-800	481Kb / 28P	Off-line all-primary-sensing switching regulator 25-Oct-2010
STMicroelectronics	ALTAIR05T-800TR	481Kb / 28P	Off-line all-primary-sensing switching regulator 25-Oct-2010

More results

Similar Description - ALTAIR04-900

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	NCP1000	115Kb / 16P	Integrated Off-Line Switching Regulator December, 2003 ??Rev. 7
STMicroelectronics	HVLED805	456Kb / 29P	Off-line LED driver with primary-sensing 14-Oct-2010
STMicroelectronics	ALTAIR05T-800	481Kb / 28P	Off-line all-primary-sensing switching regulator 25-Oct-2010
Texas Instruments	TPS92310	429Kb / 19P	Off-Line Primary Side Sensing Controller with PFC
	TPS92311	432Kb / 19P	Off-Line Primary Side Sensing Converter with PFC
	TPS92315	1Mb / 27P	Off-Line Primary-Side Sensing Controller
	TPS92314	916Kb / 26P	Off-Line Primary Side Sensing Controller with PFC
	TPS92310DGS	865Kb / 23P	TPS92310 Off-Line Primary Side Sensing Controller With PFC
	TPS92314DR	922Kb / 26P	Off-Line Primary Side Sensing Controller with PFC
	TPS92311	332Kb / 24P	Off-Line Primary Side Sensing Converter with PFC

More results

ALTAIR04-900 Datasheet(PDF) 1 Page - STMicroelectronics

ALTAIR04-900 Datasheet(HTML) 1 Page - STMicroelectronics

Similar Part No. - ALTAIR04-900

Similar Description - ALTAIR04-900

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

Datasheet Download

Link URL