L5991:Current Mode PWM

This demonstration board is a multi-output SMPS which can be used to supply an alarm system.

The circuit is composed of an AC-DC single output converter with an approximate power capability of 60 W, while the other outputs are obtained by means of DC-DC converters. The power supply also integrates a battery charger circuit in order to charge a standard SLA 12 V battery.

Key Features

  • Input voltage:Vin: 88 - 300 Vac (f: 50-60 Hz)
  • Output signals:AC input checkLow battery check
  • Output voltages:Vout1 = 13.8 V, Iout1 = 3 AVout2 = 25 V, Iout2= 200 mAVout3 = 3.8 V, Iout3 = 350 mA (1.9 A peak)
产品规格
DescriptionVersionSize
DS1231: PRIMARY CONTROLLER WITH STANDBY16.1410 KB
应用手册
DescriptionVersionSize
AN1620: 25W off-line autoranging battery charger with L5991A1.256 KB
AN2439: 27W Output power ultra wide range input flyback converter1.1410 KB
AN1621: 300W secondary controlled two-switch forward converter with L5991A2.2113 KB
AN1134: 45W AC-DC adapter with standby function4.1192 KB
AN1842: 60W WIDE-RANGE POWER SUPPLY FOR LCD MONITOR OR TV, USING THE L59912.1815 KB
AN1132: 90W SMPS for monitors with standby function4.3190 KB
AN1537: A simple trick enhances L5991’s standby function2.3300 KB
AN1686: AN L5991-based converter with temporary extra power capability1.290 KB
AN2623: Evaluation board for off-line forward converter based on L59911.21 MB
AN2131: HIGH POWER 3-PHASE AUXILIARY POWER SUPPLY DESIGN BASED ON L5991 AND ESBT STC08DE1501.1850 KB
AN1215: How to handle short circuit conditions with ST's advanced PWM controllers1.162 KB
AN1049: Minimize power losses of lightly loaded flyback converters with the L5991 PWM controller6.2276 KB
简报
DescriptionVersionSize
Primary side regulation controllers portfolio1 MB
手册
DescriptionVersionSize
Brochure Power management guide05.20167 MB
样片和购买
型号PackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
L5991AD13TRSO-16Tape And Reel--NECEAR99CHINA
L5991DSO-16Tube--NECEAR99CHINA
L5991ADSO-16Tube--NECEAR99CHINA
L5991D013TRSO-16Tape And Reel--NECEAR99CHINA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
L5991AD13TRSO-16IndustrialEcopack2 (**)md_q7-wspc-so-wspc-16-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_a5q7-wspc-u762abz.pdf
md_q7-wspc-so-wspc-16-wspc-.xml
L5991DSO-16IndustrialEcopack2 (**)md_9u-wspc-so-wspc-24-wspc-.30-wspc-to-wspc-jedec-wspc-ms-013ad_a59u-wspc-ur36ad6_sdm_signed.pdf
md_9u-wspc-so-wspc-24-wspc-.30-wspc-to-wspc-jedec-wspc-ms-013ad_a59u-wspc-ur36ad6.xml
L5991ADSO-16IndustrialEcopack2 (**)md_q7-wspc-so-wspc-16-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_a5q7-wspc-u762abz.pdf
md_q7-wspc-so-wspc-16-wspc-.xml
L5991D013TRSO-16IndustrialEcopack2 (**)md_9u-wspc-so-wspc-24-wspc-.30-wspc-to-wspc-jedec-wspc-ms-013ad_a59u-wspc-ur36ad6_sdm_signed.pdf
md_9u-wspc-so-wspc-24-wspc-.30-wspc-to-wspc-jedec-wspc-ms-013ad_a59u-wspc-ur36ad6.xml
PRIMARY CONTROLLER WITH STANDBY L5991
circuit_diagram_5468_thumbnail.png L5991
25W off-line autoranging battery charger with L5991A L5991
27W Output power ultra wide range input flyback converter L6725
300W secondary controlled two-switch forward converter with L5991A L5991
45W AC-DC adapter with standby function L5991
60W WIDE-RANGE POWER SUPPLY FOR LCD MONITOR OR TV, USING THE L5991 L5991
90W SMPS for monitors with standby function L5991
A simple trick enhances L5991’s standby function L5991
AN L5991-based converter with temporary extra power capability L5991
Evaluation board for off-line forward converter based on L5991 L5991
HIGH POWER 3-PHASE AUXILIARY POWER SUPPLY DESIGN BASED ON L5991 AND ESBT STC08DE150 L5991
How to handle short circuit conditions with ST's advanced PWM controllers L5991
Minimize power losses of lightly loaded flyback converters with the L5991 PWM controller L5991
48 V - 130 W high efficiency converter with PFC for LED street lighting applications - European version L6599AT
Very low drop voltage regulators with inhibit KFXX
md_q7-wspc-so-wspc-16-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_a5q7-wspc-u762abz.pdf L5991
md_q7-wspc-so-wspc-16-wspc-.xml HCF4060
md_9u-wspc-so-wspc-24-wspc-.30-wspc-to-wspc-jedec-wspc-ms-013ad_a59u-wspc-ur36ad6_sdm_signed.pdf L5991
md_9u-wspc-so-wspc-24-wspc-.30-wspc-to-wspc-jedec-wspc-ms-013ad_a59u-wspc-ur36ad6.xml L5991