LTC3723EGN-1 Linear Technology, LTC3723EGN-1 Datasheet
LTC3723EGN-1
Specifications of LTC3723EGN-1
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LTC3723EGN-1 Summary of contents
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... Both devices provide reliable short-circuit and overtemperature protection. The LTC3723-1/LTC3723-2 are offered in a 16-pin SSOP package. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Isolated Push-Pull Converter DRVA • ...
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... JMAX JA ORDER PART NUMBER GN PART MARKING LTC3723EGN-1 Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specified with wider operating temperature ranges. ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER I Slope Compensation Current SLP DCMAX Maximum Duty Cycle DCMIN Minimum Duty Cycle DTADJ Dead-Time Oscillator OSCI Initial Accuracy OSCT V Variation CC OSCV C Ramp Amplitude T Error ...
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LTC3723-1/LTC3723-2 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER SSI Soft-Start Current SSR Soft-Start Reset Threshold FLT Fault Reset Threshold Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Error Amplifier Gain/Phase 100 –180 –270 –360 10 100 1k 10k 100k 1M FREQUENCY (Hz) 372312 G07 Slope Current vs Temperature 2.25V T 70 ...
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LTC3723-1/LTC3723 DESCRIPTIO S (LTC3723-1/LTC3723-2) V (Pin 1/Pin 1): Output of the 5.0V Reference. V REF capable of supplying up to 18mA to external circuitry. V should be decoupled to GND with a 0.47µF ceramic capacitor. SDRB (Pin ...
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DESCRIPTIO S (LTC3723-1/LTC3723-2) SS (Pin 14/Pin 14): Soft-Start/Restart Delay Circuitry Timing Capacitor. A capacitor from SS to GND provides a controlled ramp of the current command (LTC3723-1) or duty cycle (LTC3723-2). During overload conditions discharged ...
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LTC3723-1/LTC3723-2 W BLOCK DIAGRA S V UVLO UVLO CC 10µA 10.25V “ON” “OFF” ERROR SYSTEM AMPLIFIER UVLO – – 1.2V 5V 50k – COMP 11 14. 650mV ...
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W BLOCK DIAGRA S V UVLO UVLO CC 10µA 10.25V “ON” “OFF” ERROR SYSTEM AMPLIFIER UVLO – – 1.2V 5V PULSE WIDTH 50k MODULATOR – COMP ...
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LTC3723-1/LTC3723-2 U OPERATIO Please refer to the detailed Block Diagrams for this discus- sion. The LTC3723-1 and LTC3723-2 are synchronous PWM push-pull controllers. The LTC3723-1 operates with peak pulse-by-pulse current mode control while the LTC3723-2 offers voltage mode control operation. ...
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U OPERATIO very low (145µA typ) start-up current that allows the use of 1/8W to 1/4W trickle charge start-up resistors. The trickle charge resistor should be selected as follows – 10.7V/250µA START(MAX) IN(MIN) Adding a small safety ...
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LTC3723-1/LTC3723-2 U OPERATIO product offerings as well. A different approach is to add a winding to the output inductor and peak detect and filter the square wave signal (see Figure 4b). The polarity of this winding is designed so that ...
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U OPERATIO The 50% duty-cycle limit is overcome with the circuit shown in Figure 7. Operation is similar to external syn- chronization, except DRVA output is used to terminate its own clock cycle early. Switching period is now equal to ...
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LTC3723-1/LTC3723-2 U OPERATIO The LTC3723-1 derives a compensating slope current from the oscillator ramp waveform and sources this current out of CS. This function is disabled in the LTC3723-2. The desired level of slope compensation is selected with an external ...
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U OPERATIO High Current Drivers The LTC3723-1/LTC3723-2 high current, high speed driv- ers provide direct drive of external power N-channel MOSFET switches. The drivers swing from rail to rail. Due to the high pulsed current nature of these drivers (1.5A ...
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LTC3723-1/LTC3723-2 U TYPICAL APPLICATIO S 16 372312f ...
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U TYPICAL APPLICATIO S LTC3723-1/LTC3723-2 372312f 17 ...
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LTC3723-1/LTC3723-2 U TYPICAL APPLICATIO S 18 372312f ...
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... D1: MMBZ5240B 0.015Ω D2: MMBZ5242B 1.5W L1: COILCRAFT DO1813P-561HC L2: PULSE PA0513.441 L3: COILCRAFT DO1608C-105 T1: PULSE PA0901.004 (4:4:4:4CT) T2: PULSE PA0785 (1:0.5T) V 12V IN 30k MMBT3904 DRVA DRVB 100Ω 1/ LTC3723EGN-1 464k CC 15 UVLO FB GND C SPRG RLEB 100pF 66.5k 33k 1µF 270pF D2 12V 10k PACKAGE DESCRIPTIO .015 ± ...
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... LOAD CURRENT (A) V 10V IN A 30k 6 4 150Ω DRVA DRVB 1/ 383k LTC3723EGN-1 15 UVLO GND SS C SPRG RLEB 100pF C T 10k 1µF 68nF 66.5k 33k 220pF 1µF, 100V TDK C3225X7R2A105M (1210) V 100µF, 6.3V TDK C3225X5R0J107M (1210) REF A 2.2nF, 630V TDK C3216JB2J222K 50k 470µ ...