NCP3030BDR2G ON Semiconductor, NCP3030BDR2G Datasheet
NCP3030BDR2G
Specifications of NCP3030BDR2G
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NCP3030BDR2G Summary of contents
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... FB VSW GND LSDR ORDERING INFORMATION Device Package Shipping NCP3030ADR2G SOIC−8 2500 / Tape & Reel (Pb−Free) NCP3030BDR2G SOIC−8 2500 / Tape & Reel (Pb−Free) NCV3030ADR2G SOIC−8 2500 / Tape & Reel (Pb−Free) NCV3030BDR2G SOIC−8 2500 / Tape & Reel (Pb−Free) †For information on tape and reel specifications, ...
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VCC OSCILLATOR COMP REF FB PIN FUNCTION DESCRIPTION Pin Pin Name 1 V The V pin is the main voltage supply input also used in conjunction with the VSW pin to sense current the high ...
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ABSOLUTE MAXIMUM RATINGS (measured vs. GND pin 8, unless otherwise noted) Rating High Side Drive Boost Pin Boost to V differential voltage SW COMP Feedback High−Side Driver Output Low−Side Driver Output Main Supply Voltage Input Switch Node Voltage Maximum Average ...
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ELECTRICAL CHARACTERISTICS ( Characteristic Input Voltage Range SUPPLY CURRENT V Supply Current NCP3030A CC V Supply Current NCP3030B CC UNDER VOLTAGE LOCKOUT UVLO Rising Threshold UVLO Falling Threshold OSCILLATOR Oscillator Frequency NCP3030A T Oscillator Frequency NCP3030B T Ramp−Amplitude Voltage Ramp ...
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ELECTRICAL CHARACTERISTICS ( Characteristic GATE DRIVERS AND BOOST CLAMP HSDRV Pullup Resistance HSDRV Pulldown Resistance LSDRV Pullup Resistance LSDRV Pulldown Resistance HSDRV Falling to LSDRV Rising Delay LSDRV Falling to HSDRV Rising Delay Boost Clamp Voltage THERMAL SHUTDOWN Thermal Shutdown ...
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TYPICAL PERFORMANCE CHARACTERISTICS 100 NCP3030A Typical Application Circuit Figure ...
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TYPICAL PERFORMANCE CHARACTERISTICS 808 806 804 802 800 798 796 794 792 −40 −25 − TEMPERATURE (°C) Figure 9. Feedback Reference Voltage vs Temperature 2500 2475 2450 2425 − ...
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TYPICAL PERFORMANCE CHARACTERISTICS 1000 950 900 850 800 750 700 650 600 550 500 450 400 −40 −25 − TEMPERATURE (°C) Figure 15. Ramp Valley Voltage vs Temperature Input = 12 V, Output = 3.3 V, ...
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OVERVIEW The NCP3030A/B operates as a 1.2/2.4 MHz, voltage mode, pulse width modulated, (PWM) synchronous buck converter. It drives high−side and low−side N−channel power MOSFETs. The NCP3030 incorporates an internal boost circuit consisting of a boost clamp and boost diode ...
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OOV and OUV The output voltage of the buck converter is monitored at the feedback pin of the output power stage. Two comparators are placed on the feedback node of the OTA to monitor the operating window of the feedback ...
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V (vref *125%) 0.8 V (vref *100%) 0.6 V (vref *75%) FB Voltage Latch off Reinitiate Softstart Softstart Complete Figure 23. Powerup Sequence and Overvoltage Latch 1.0 V (vref *125%) 0.8 V (vref *100%) 0.6 V (vref * 75%) ...
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CURRENT LIMIT AND CURRENT LIMIT SET Overview The NCP3030 uses the voltage drop across the High Side MOSFET during the on time to sense inductor current. The Ilim Out CONTROL 6 DAC / COUNTER Itrip Ref−63 Steps, 6.51 mV/step Current ...
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No Trip: Vsense < I Itrip Ref Vsense ¾ Ton−2 1/4 1/2 3/4 Ton−1 Each switching cycle’s Ton is counted time steps. The 3/4 sample time value is held and used for the following cycle’s limit sample ...
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Reduced sampling time occurs at high duty cycles where the low side MOSFET is off for the majority of the switching period. Reduced sampling time causes errors in the regulated voltage on the boost pin. High duty cycle / input ...
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VIN VBOOST Maximum Normal VIN VBOOST Maximum Normal VIN VBOOST Figure 29. Typical Waveforms for Region 1 (top), Region 2 (middle), and Region 3 (bottom) To illustrate, a 0.1 mF boost capacitor operating at > 80% duty cycle and > ...
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Voltage Ripple Maximum Allowable Voltage 16 Maximum Boost Voltage 4.5 Inductor Selection When selecting the inductor important to know the input and output requirements. Some example conditions are listed ...
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10% 15% 20% 25 (V) IN Figure 31. Ripple Current Ratio vs. Inductance To keep within the bounds of the parts maximum rating, calculate the RMS current ...
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Output Capacitor Selection The important factors to consider when selecting an output capacitor is dc voltage rating, ripple current rating, output ripple voltage requirements, and transient response requirements. The output capacitor must be rated to handle the ripple current at ...
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BST TH HSPU and OFF BST HSPD Next, the MOSFET output ...
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High−Side Logic Signal Low−Side Logic Signal t d(on) R DSmax High−Side MOSFET R DS(on)min DSmax Low−Side MOSFET R DS(on)min Another consideration during MOSFET selection is their delay times. Turn−on and turn−off times must be short enough to ...
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Compensation Type II This compensation is suitable for electrolytic capacitors. Components of the Type II (Figure 34) network can be specified by the following equations: Figure 34. Type II Compensation ...
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IN− 1 IN− 2/3 IN− 4 VCC COMP GND Figure 36. Typical Application, V Reference Designator CIN−1 270 mF CIN− CIN− CIN− CC1 ...
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... *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “ ...