NCP5212A ON Semiconductor, NCP5212A Datasheet
NCP5212A
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NCP5212A Summary of contents
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... NCP5212A www.DataSheet4U.com Single Synchronous Step-Down Controller The NCP5212A is a synchronous stepdown controller for high performance systems battery−power systems. The NCP5212A includes a high efficiency PWM controller. A pin is provided to allow two devices in interleaved operation. An internal power good voltage monitor tracks the SMPS output. NCP5212A also features soft−start ...
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... UVLO Control 2 VCC MASTER 3 SYN Level 4 EN Control VREF PGOOD Thermal OSC Shutdown NCP5212A Control Logic, Protection, RAMP Generator and PWM Logic ENABLE SLAVE Error Amplifier Figure 1. Detail Block Diagram http://onsemi.com 2 13 IDRP/OCP Detection Over Current Detector AVP ...
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... PGOOD EN_SKIP Figure 2. Typical Application Circuit (Single Device Operation VIN VCCP 1 12 VCC DL/TRESET 2 11 NCP5212A SYN AGND PGND 3 10 EN_SKIP CS http://onsemi.com 3 VIN VOUT GND ...
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... VIN VCCP 1 12 VCC DL/TRESET 2 11 NCP5212A AGND SYN PGND 3 10 Master EN CS VIN VCCP 1 12 VCC DL/TRESET 2 11 NCP5212A AGND SYN PGND 3 10 Slave EN CS http://onsemi.com 4 VIN VOUT1 GND1 VOUT2 GND2 ...
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PIN FUNCTION DESCRIPTION www.DataSheet4U.com Pin No. Symbol 1 VIN 2 VCC 3 SYN COMP IDRP/OCP 8 CS−/Vo 9 CS+ 10 PGND 11 DL/TRESET 12 VCCP 13 BST SWN 16 PGOOD 17 ...
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ELECTRICAL CHARACTERISTICS www.DataSheet4U.com Characteristics SUPPLY VOLTAGE Input Voltage V Operating Voltage CC SUPPLY CURRENT V Quiescent Supply Current in CC Master operation V Quiescent Supply Current in CC Slave Operation V Shutdown Current CC BST Quiescent Supply Current in Master ...
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ELECTRICAL CHARACTERISTICS www.DataSheet4U.com Characteristics OSCILLATOR Operation Frequency OVERCURRENT THRESHOLD Total Detection Time OCSET Detection Time INTERNAL SOFT−START Soft−Start Time VOLTAGE ERROR AMPLIFIER DC Gain Unity Gain Bandwidth Slew Rate FB Bias Current Output Voltage Swing DIFFERENTIAL CURRENT SENSE AMPLIFIER CS+ ...
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ELECTRICAL CHARACTERISTICS www.DataSheet4U.com Characteristics OVERCURRENT PROTECTION SETTING Adjustable OC Threshold GATE DRIVERS DH Pull−HIGH Resistance DH Pull−LOW Resistance DL Pull−HIGH Resistance DL Pull−LOW Resistance DH Source Current DH Sink Current DL Source Current DL Sink Current Dead Time Negative Current ...
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ELECTRICAL CHARACTERISTICS www.DataSheet4U.com Characteristics TRE SETTING TRE Threshold Detection Current Detection Voltage for TRE Threshold Selection TRE Comparator Offset Propagation Delay of TRE Comparator THERMAL SHUTDOWN Thermal Shutdown Thermal Shutdown Hysteresis 2. Guaranteed by design, not tested in production. (V ...
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AMBIENT TEMPERATURE (°C) Figure 4. V Voltage vs Ambient Temperature ref 315 310 305 300 295 290 285 −40 −15 10 AMBIENT TEMPERATURE (°C) Figure 6. Switching Frequency vs ...
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Top to Bottom: EN, SWN, Vo, PGOOD Figure 10. Powerup Sequence Top to Bottom: SWN_Slave, Vo_Slave, SWN_Master, Sync_clk Figure 12. From Unsync to Sync TYPICAL OPERATING CHARACTERISTICS Top to Bottom: SWN_Slave, Vo_Slave, SWN_Master, Top to Bottom: SWN, Vo, Io ...
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... To further improve transient response in CCM, a transient response enhancement circuitry is implemented inside the NCP5212A. In CCM operation, the controller is continuously monitoring the COMP pin output voltage of the error amplifier to detect the load transient events. The functional block diagram of TRE is shown below ...
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Once the large transient occurs, the COMP signal may be www.DataSheet4U.com large enough to exceed the threshold and then TRE “flag” signal will be asserted in a short period which is typically around one normal switching cycle. In this short ...
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... Top to Bottom: SWN, Vo, Transient Signal Figure 22. Typical waveform of AVP Over Current Protection (OCP) The NCP5212A protects power system if over current event occurs. The current is continuously monitored by the differential current sensing circuit. The current limit threshold voltage VOCSET can be programmed by resistor ROCSET connecting at the IDRP/OCP pin ...
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Rocp www.DataSheet4U.com program the overcurrent detection threshold voltage. For typical application, the V value(40 mV typ) by setting Rocp = directly short the IDRP/OCP ...
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... SYNC JP3 R216 JP2 COMP C28 R29 R224 R7 PGOOD SWN R22 VIN 1 12 VCCP C29 2 VCC DL/TRESET 11 R27 NCP5212A 3 SYN PGND CS+ 9 C25 R213 R211 C214 R214 C215 C213 R215 J2 1 R223 2 3 1−2 = OCP Only 3− ...
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... Panasonic ECJ3YB1E106M 1206 Panasonic ECJ3YB1E105M − − 0805 Panasonic ECJ2FB1E105M SOT−23 ON Semiconductor − − SOT−23 ON Semiconductor − − 5.1 x 5.1 mm Tyco Electonics RS Stock# 420−5401 Pitch = 2.54 mm Betamax 2211S−40G−F1 0805 LUMEX SML−LX0805GC− 1.74 mm HARWIN − − ...
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... PCMC104T−R56MN − − − Panasonic ERJ3EKF4301V Panasonic EEFSX0D331XR Sanyo 2TPLF330M6 Manufacturer Manufacturer P/N Panasonic ERJ3EKF5001V Panasonic ERJ3EKF7502V Panasonic ERJ3EKF1001V Panasonic ERJ3EKF5601V Panasonic ECJ1VC1H900K Panasonic ECJ1VB1H271K Panasonic ECJ1VB1H331K ON Semiconductor NTMS4705N − − Cyntec PCMC104T−1R0MN − − Panasonic ERJ3EKF4301V Panasonic EEFUD0D221XR Sanyo 2R5TPL220MC ...
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... D 4.00 BSC D2 2.00 2.20 Ç Ç Ç E 4.00 BSC E2 2.00 2.20 e 0.65 BSC K 0.20 −−− L 0.45 0.65 L1 −−− 0.15 MOUNTING FOOTPRINT* 4.30 2.25 PKG OUTLINE 1 0.65 PITCH 16X 0.35 DIMENSIONS: MILLIMETERS ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP5212A/D ...