L6590A ,FULLY INTEGRATED POWER SUPPLYABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV Drain Source Voltage -0.3 to 700 VdsI Drain Cu ..
L6590D ,FULLY INTEGRATED POWER SUPPLYBLOCK DIAGRAMDRAIN [x] : L6590D (SO16W)(1) [1]START-UPCCV(3) [4]VREFSUPPLYTHERMAL&UVLOSHUTDOWN+-SGN ..
L6590D013TR ,FULLY INTEGRATED POWER SUPPLYAPPLICATIONSDESCRIPTION■ WALL PLUG POWER SUPPLIES UP TO 15 WThe L6590 is a monolithic switching reg ..
L6591 ,Current mode PWM controller for Asymmetrical Half Bridge converter topologyElectrical characteristics . . . . . 85 Typical characteristics . . . . . . 126 Applicati ..
L6591TR ,Current mode PWM controller for Asymmetrical Half Bridge converter topologyBlock diagram HV VCC16 95CLKOSCTIMING 25 VVrefHV generator ON/O FFandVREG6adaptive ..
L6598 ,HIGH VOLTAGE RESONANT CONTROLLERL6598HIGH VOLTAGE RESONANT CONTROLLER■ HIGH VOLTAGE RAIL UP TO 600V■ ±dV/dt IMMUNITY 50V/ns IN FULL ..
LC4032V-75TN44I , 3.3V/2.5V/1.8V In-System Programmable SuperFAST High Density PLDs
LC4032ZC-75M56C , 3.3V/2.5V/1.8V In-System Programmable SuperFAST High density PDLs
LC4032ZE-5TN48I , 1.8V In-System Programmable Ultra Low Power PLDs
LC4064B-25T48C , 3.3V/2.5V/1.8V In-System Programmable SuperFAST High Density PLDs
LC4064B-75TN48C , 3.3V/2.5V/1.8V In-System Programmable SuperFAST High Density PLDs
LC4064V-10T100I , 3.3V/2.5V/1.8V In-System Programmable SuperFAST High Density PLDs
L6590A
FULLY INTEGRATED POWER SUPPLY
1/19
L6590AOctober 2000 WIDE-RANGE MAINS OPERATION "ON-CHIP" 700V V(BR)DSS POWER MOS 65 kHz INTERNAL OSCILLATOR STANDBY MODE FOR HIGH EFFICIENCY AT
LIGHT LOAD OVERCURRENT AND LATCHED
OVERVOLTAGE PROTECTION NON DISSIPATIVE BUILT-IN START-UP
CIRCUIT THERMAL SHUTDOWN WITH HYSTERESIS BROWNOUT PROTECTION
MAIN APPLICATIONS WALL PLUG POWER SUPPLIES UP TO 15W AC-DC ADAPTERS AUXILIARY POWER SUPPLIES FOR: CRT AND LCD MONITOR (BLUE ANGEL) DESKTOP PC/SERVER FAX, TV, LASER PRINTER HOME APPLIANCES/LIGHTING LINE CARD, DC-DC CONVERTERS
DESCRIPTIONThe L6590Aisa monolithic switching regulator de-
signedin BCD OFF-LINEtechnology, ableto operate
with wide range input voltage andto deliver upto
15W output power. The internal power switchisa lat-
eral power MOSFET witha typical RDS(on)of 13Ω
anda V(BR)DSSof 700V minimum.
FULLY INTEGRATED POWER SUPPLY
TYPICAL APPLICATION CIRCUIT
L6590A2/19
DESCRIPTION (continued)
The MOSFETis source-grounded, thusitis possible build flyback, boost and forward converters.
The deviceis meantto work with secondary feed-
backfor tight toleranceof the regulated output volt-
age.
The internal fixed oscillator frequency and the inte-
grated non dissipative start-up generator minimize
the external component count and power consump-
tion.
The deviceis equipped witha standby function that
automatically reduces the oscillator frequency fromto22 kHz under light load conditionsto enhance
efficiency (Pin <1W@ Pout= 0.5W with wide range
mains).
Internal protections like cycle-by-cycle current limit-
ing, latched output overvoltage protection, mains un-
dervoltage protection and thermal shutdown
generatea 'robust' design solution.
TheIC usesa special leadframe with the ground pins
(6,7 and8) internally connectedin orderfor heatto easily removed from the silicon die. An heatsink
can thenbe realizedby simply making provisionof
few cm2of copperon the PCB. Furthermore, the pin
closeto the high-voltage oneis not connectedto
ease compliance with safety distanceson the PCB.
BLOCK DIAGRAM
PIN CONNECTIONS (Top view)
3/19
L6590A
PIN FUNCTIONS
THERMAL DATA(*) Value dependingon PCB copper areaand thickness.
ABSOLUTE MAXIMUM RATINGS
L6590A4/19
ELECTRICAL CHARACTERISTCS(Tj= -25to 125°C, Vcc= 10V; unless otherwise specified))
POWER SECTION
PWM CONTROL INPUT
OSCILLATOR SECTION
CIRCUIT PROTECTIONS
STANDBY SECTION
5/19
L6590A(*) Parameters trackingonethe other
(**) Parameter guaranteedby design,not testedin production
(***) Parameters guaranteedby design, functionality testedin production
BROWNOUT PROTECTION
THERMAL SHUTDOWN (***)
ELECTRICAL CHARACTERISTICS (continued)
L6590A6/19
Figure1. Start-up& UVLO Thresholds
Figure2. Start-up Current Generator
Figure3. Start-up Current Generator
Figure4.IC Consumption Before Start-up
Figure5.IC Quiescent Current
Figure6.IC Operating Current
7/19
L6590A
Figure7.IC Operating Current
Figure8. Switching Frequency vs.
Temperature
Figure9. Vcc clamp vs. Temperature
Figure 10. OVP Threshold vs. Temperature
Figure 11. OCP Threshold vs. Current Slope
Figure 12. OCP threshold vs. Temperature
L6590A8/19
Figure 13. COMP pin Characteristic
Figure 14. COMP pin Dynamic Resistance vs.
Temperature
Figure 15. Breakdown Voltage vs. Temperature
Figure 16. Drain Leakage vs. Drain Voltage
Figure 17. Rds(ON) vs. Temperature
Figure 18. Rds(ON) vs. Idrain
9/19
L6590A
Figure 19. Coss vs. Drain Voltage Figure 20. Standby Function Thresholds
Figure 21. Test Board electrical schematic
L6590A10/19
Figure 22. Test Board evaluation data
Figure 23. Test Board EMI characterization
