Digchip : Database on electronics components
Electronics components database



Details, datasheet, quote on part number: LTC3722EGN-1
 
 
Part numberLTC3722EGN-1
CategoryPower Management => Regulators => Switching Regulators
DescriptionLTC3722, Synchronous Dual Mode Phase Modulated Full Bridge Controller
CompanyLinear Technology Corporation
DatasheetDownload LTC3722EGN-1 datasheet
Request For QuoteFind where to buy LTC3722EGN-1
 


 
Specifications, Features, Applications

LTC3722-1/LTC3722-2 Synchronous Dual Mode Phase Modulated Full Bridge Controllers
FEATURES

Adaptive or Manual Delay Control for Zero Voltage Switching Operation Adjustable Synchronous Rectification Timing for Highest Efficiency Adjustable Maximum ZVS Delay Adjustable System Undervoltage Lockout and Hysteresis Programmable Leading Edge Blanking Very Low Start-Up and Quiescent Currents Current Mode (LTC3722-1) or Voltage Mode (LTC3722-2) Operation Programmable Slope Compensation VCC UVLO and 25mA Shunt Regulator 50mA Output Drivers Soft-Start, Cycle-by-Cycle Current Limiting and Hiccup Mode Short-Circuit Protection 5V, 15mA Low Dropout Regulator

The LTC3722-1/LTC3722-2 phase shift PWM controllers provide all of the control and protection functions necessary to implement a high efficiency, zero voltage switched (ZVS), full bridge power converter. Adaptive ZVS circuitry delays the turn-on signals for each MOSFET independent of internal and external component tolerances. Manual delay set mode enables secondary side control operation or direct control of switch turn-on delays. The LTC3722-1/LTC3722-2 feature adjustable synchronous rectifier timing for optimal efficiency. A UVLO program input provides accurate system turn-on and turn-off voltages. The LTC3722-1 features peak current mode control with programmable slope compensation and leading edge blanking, while the LTC3722-2 employs voltage mode control with voltage feedforward capability. The LTC3722-1/LTC3722-2 feature extremely low operating and start-up currents. Both devices include a full range of protection features and are available in the 24-pin surface mount (GN) package.

Telecommunications, Infrastructure Power Systems Distributed Power Architectures Server Power Supplies

Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

VREF Output Current................................ Self Regulated Outputs (A,B,C,D,E,F) Current.......................... 100mA Operating Temperature Range (Note to 85C Storage Temperature Range................. to 150C Lead Temperature (Soldering, 10 sec).................. 300C

VCC to GND (Low Impedance Source)......... to 10V (Chip Self Regulates at 10.3V) UVLO to GND................................................ 0.3 to VCC All Other Pins to GND (Low Impedance Source)....................... to 5.5V VCC (Current Fed)................................................. 25mA

TOP VIEW SYNC DPRG CS COMP RLEB SS NC PDLY CT 23 GND 22 PGND 21 OUTA 20 OUTB 19 OUTC 18 VCC 17 OUTD 16 OUTE 15 OUTF 14 VREF 13 SPRG

Consult LTC Marketing for parts specified with wider operating temperature ranges.

TOP VIEW SYNC RAMP CS COMP DPRG SS NC PDLY CT 23 GND 22 PGND 21 OUTA 20 OUTB 19 OUTC 18 VCC 17 OUTD 16 OUTE 15 OUTF 14 VREF 13 SPRG

The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are = 25C. VCC = 270pF, RDPRG = 60.4k, RSPRG = t MIN to t MAX, unless otherwise noted.

SYMBOL Input Supply VCCUV VCCHY ICCST ICCRN VSHUNT RSHUNT SUVLO SHYST Delay Blocks DTHR DHYS DTMO DFXT DFTM Phase Modulator IRMP ISLP DCMAX DCMIN Oscillator OSCI OSCT OSCV OSYT OSYW OSYR Initial Accuracy Total Variation CT Ramp Amplitude SYNC Threshold Minimum SYNC Pulse Width SYNC Frequency Range = 270pF VCC to 9.5V Measured on CT Measured on SYNC Measured at Outputs (Note 2) Measured at Outputs (Note 2) 1.6

PARAMETER VCC Under Voltage Lockout VCC UVLO Hysteresis Start-Up Current Operating Current Shunt Regulator Voltage Shunt Resistance System UVLO Threshold System UVLO Hysteresis Current Delay Pin Threshold ADLY and PDLY Delay Hysteresis Current ADLY and PDLY Delay Timeout Fixed Delay Threshold Fixed Delay Time Ramp Discharge Current Slope Compensation Current Maximum Phase Shift Minimum Phase Shift

CONDITIONS Measured on VCC Measured on VCC = VUVLO 0.3V No Load on Outputs Current into VCC = 10mA Current into VCC to 17mA Measured on UVLO Pin, 7mA into VCC Current Flows Out of UVLO Pin, 7mA into VCC SBUS = 1.5V SBUS = 2.25V SBUS = 1.5V, ADLY/PDLY = 1.7V RDPRG = 60.4K Measured on SBUS ADLY,PDLY = 1V, SBUS = VREF RAMP = 1V, COMP 4V, LTC3722-1 Only Measured on CS, = 2.25V COMP = 4.5V COMP = 0V




Related products with the same datasheet
LTC3722-1   LTC3722-2   LTC3722EGN-2   LTC3722EGN-1#PBF   LTC3722EGN-1#TR   LTC3722EGN-1#TRPBF  
LTC3722EGN-2#PBF   LTC3722EGN-2#TR   LTC3722EGN-2#TRPBF  


Some Part number from the same manufacture Linear Technology Corporation
LTC3722EGN-2 LTC3722, Synchronous Dual Mode Phase Modulated Full Bridge Controller
LTC3723-1 Synchronous Push-pull PWM Controllers<<<>>>synchronous Push-pull PWM Controllers Provide All of The Control And Protection Functions Necessary For Compact And Highly Efficient, ISOlated Power Converters.
LTC3727 LTC3727, 36V High Efficiency, 2-Phase Synchronous Step-down Switching Controller
LTC3728 LTC3728, 36V Dual 550kHz, 2-Phase Synchronous Step-down Switching Regulator
LTC3728L Dual, 550kHz, 2-Phase Synchronous Step-down Switching Regulators
LTC3729 LTC3729, 36V Dual 550kHz, Poly-phase Synchronous Step-down Controller
LTC3729L-6 Polyphase, Synchronous Step-down Switching Regulator
LTC3730 LTC3730, 3-Phase, 5-Bit Intel Mobile Vid, 600kHz SYNC Buck Switching Regulator Controller
LTC3731 LTC3731, 36V, 3-Phase, 600kHz SYNC Hronous Buck Switching Regulator Controller
LTC3732 LTC3732, 3-Phase, 5-Bit Vid, 600kHz, Synchronous Buck Switching Regulator Controller
LTC3733 3-Phase, 5-Bit Vid, Buck Controllers For Amd Cpus
LTC3734 Single-phase High Efficiency DC/DC Controller With On-chip Gate Drivers For Intel Mobile Cpus
LTC3736 Dual 2-Phase, no Rsense , Synchronous Controller With Output Tracking<<<>>>features<<<>>><<<>>>no Current Sense Resistors Required <<<>>>Out-of-Phase Controllers Reduce Required Input Capacitance <<<>>>Tracking
LTC3737 DC-DC Controller, Dual, 2-Phase, no Rsense, With Output Tracking
LTC3738 3-Phase Buck Controller For Intel VRM9/VRM10 With Active Voltage Positioning
LTC3778 LTC3778, 36V, no Rsense Step-down Controller
LTC3801 Micropower Constant Frequency Step-down DC/DC Controllers in Thinsot.<<<>>>the LTC 3801/LTC3801B Are Constant Frequency Current Mode Step-down DC/DC Controllers in a Low Profile (1mm Max) 6-lead SOT-23
LTC3802 Dual 550kHz Synchronous 2-Phase DC/DC Controller With Programmable Up/down Tracking<<<>>>the LTC3802 is a Dual Switching Regulator Controller Optimized For High Efficiency Step-down Conversion From Input
LTC3803 Constant Frequency Current Mode Flyback DC/DC Controller in Thinsot<<<>>>the LTC 3803 is a Constant Frequency Current Mode Flyback Controller Optimized For Driving 6V-rated N-channel MOSFETs in High Input
LTC3806 Synchronous Flyback DC/DC Controller<<<>>>a Current Mode Synchronous Flyback Controller That Drives N-channel Power MOSFETs And Requires Very Few External Components. It is Intended For Medium Power Applications
LTC3830 LTC3830, High Power Step-down Synchronous DC/DC Controller For Low Voltage Operation