L6610D

Mounting Type: Surface Mount
Series: -
Voltage - Input: -
Packaging: Tube
Current - Supply: 5mA
Manufacturer: STMicroelectronics
Operating Temperature: 0°C ~ 105°C
Package / Case: 24-SOIC (0.295", 7.50mm Width)
Supplier Device Package: 24-SO
Applications: Programmable Housekeeping Controller
Voltage - Supply: 4.2 V ~ 7 V


Features:

· OV/UV DETECTION FOR 3.3V, ±5V, ±12V RAILS AND 5V (OR 3.3V) AUX. VOLTAGE
· OC DETECTION ON 12V AND 5V (OR 3.3V) RAILS
· 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

Application

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


Pinout




Specifications

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 -5V and -12V UV/OV sense pins	-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

Description

The L6610 is a control and housekeeping IC developed in BCD technology; L6610 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: L6610 senses those voltages, sends feedback signals to the primary controllers for regulation and, upon detection of an undervoltage (UV), overvoltage (OV) or overcurrent (OC) condition, reports such fault and takes proper action to protect the system.

However, the peculiar feature of L6610 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. L6610 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 L6610 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.

Parameters:

Technical/Catalog Information	L6610D
Vendor	STMicroelectronics
Category	Integrated Circuits (ICs)
Type	-
Voltage - Supply	4.2 V ~ 7 V
Current - Supply	5mA
Voltage - Input	-
Package / Case	24-SOIC (7.5mm Width)
Packaging	Tube
Applications	Programmable Housekeeping Controller
Operating Temperature	0°C ~ 105°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	L6610D L6610D