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L6611DTR, L6611N, L6615

L6611DTR, L6611N, L6615 Selling Leads, Datasheet

MFG:STMicroelectronics  Category:Integrated Circuits (ICs)  Package Cooled:ST  D/C:08+

L6611DTR Picture

L6611DTR, L6611N, L6615 Datasheet download

Five Points

Part Number: L6611DTR

Category: Integrated Circuits (ICs)

MFG: STMicroelectronics

Package Cooled: ST

D/C: 08+

Description: IC CTRLR HOUSEKEEPING BCD 20-DIP

 

 
 
 
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About L6611DTR

PDF/DataSheet Download

Datasheet: L6611DTR

File Size: 623981 KB

Manufacturer: STMICROELECTRONICS [STMicroelectronics]

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About L6611N

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Datasheet: L6611N

File Size: 623981 KB

Manufacturer: STMICROELECTRONICS [STMicroelectronics]

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    Fax: 86-755-83282993
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About L6615

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Datasheet: L6615

File Size: 401745 KB

Manufacturer: STMICROELECTRONICS [STMicroelectronics]

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L6611DTR Parameters

Technical/Catalog InformationL6611DTR
VendorSTMicroelectronics
CategoryIntegrated Circuits (ICs)
Type-
Voltage - Supply4.2 V ~ 7 V
Current - Supply5mA
Voltage - Input-
Package / Case20-SOIC (7.5mm Width)
PackagingTape & Reel (TR)
ApplicationsProgrammable Housekeeping Controller
Operating Temperature0°C ~ 125°C
Lead Free StatusContains Lead
RoHS StatusRoHS Non-Compliant
Other Names L6611DTR
L6611DTR
497 4022 2 ND
49740222ND
497-4022-2

L6611N Parameters

Technical/Catalog InformationL6611N
VendorSTMicroelectronics
CategoryIntegrated Circuits (ICs)
Type-
Voltage - Supply4.2 V ~ 7 V
Current - Supply5mA
Voltage - Input-
Package / Case20-DIP (300 mil)
PackagingTube
ApplicationsProgrammable Housekeeping Controller
Operating Temperature0°C ~ 125°C
Lead Free StatusLead Free
RoHS StatusRoHS Compliant
Other Names L6611N
L6611N

L6611N General Description

The L6611 is a control and housekeeping IC developed in BCD technology; it is intended for acting at the secondary side of desktop PC's or server's switching power supplies, in presence of standard voltage rails (+3.3V, +5V, ±12V) generated by a main converter and of a supply line generated by an auxiliary converter. The typical application circuit is showed on the front page.

The Housekeeping's main function is to control and monitor the voltages generated by both the main and the auxiliary converter: it senses those voltages, sends feedback signals to the primary controllers for regulation and, upon detection of an undervoltage (UV), or overvoltage (OV) condition, reports such fault and takes proper action to protect the system.

However, the peculiar feature of this IC is its digital programming capability that enables an accurate trimming of the output voltage rails during production test via software, without any use of external discrete trimming components or need for manual intervention on the PSU. It is also possible to program some of the monitoring functions and select how UV and OC conditions are handled in the main converter: whether latched-mode (the information is latched and released only by forcing the restart of the IC) or bouncing-mode (an attempt is made to automatically restart the converter after 1 second wait).

A key feature of this IC is its contribution to a very low external component count. Besides the extensive use of onboard programmable switches, which prevents the need for external trimming components, the IC embeds reference voltages, error amplifiers and most of the housekeeping circuitry normally required.

L6611N Maximum Ratings

Symbol Parameter Value Unit
Vdd Supply voltage -0.5 to +7 V
  Voltage on PROG, PS-ON/Clock, DFAULT, VREF, and error
amplifier pins
-0.5toVdd+0.5 V
  Voltage on MFAULT, PW-OK, Dmon and positive UV, OV,OC,AC
sense pins.
-0.5 to +16 V
  Voltage on and -12V UV/OV sense pin -16 to +5 V
  Maximum current in ESD clamp diodes 10 mA
TJ Operating Junction Temperature -25 to 150 °C
TSTO Storage Temperature -50 to 150 °C
TL Lead Temperature (soldering, 10 seconds) 300 °C

L6611N Features

· OV/UV DETECTION FOR 3.3V, +5V, ±12V RAILS AND 5V (OR 3.3V) AUX. VOLTAGE
· AC MAINS UV (BROWNOUT) DETECTION WITH HYSTERESIS
· ON-LINE DIGITAL TRIMMING FOR 5V/12V, 3.3V, 5V (OR 3.3V) AUX. FEEDBACK REFERENCES AND AC MAINS UV.
· DIGITALLY SELECTABLE OPTIONS
· ERROR AMPLIFIERS FOR 5V/12V RAILS (MAIN SUPPLY), 3V3 POST-REGULATOR (MAG_AMP OR LINEAR) AND AUXILIARY SUPPLY.
· MAIN SUPPLY ON/OFF CONTROL AND POWER GOOD SIGNAL
· 50mA CROWBAR DRIVE FOR AUXILIARY OUTPUT OVP.
· OPEN GROUND PROTECTION
· 8ms DIGITAL SOFT START
· 64 ms UV/OC BLANKING AT START-UP

L6611N Typical Application

·SWITCHING POWER SUPPLIES FOR ESKTOP PC'S, SERVERS AND WEB ERVERS
·SUPERVISOR FOR DISTRIBUTED POWER

L6611N Connection Diagram

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