NCP5212A_09 ONSEMI [ON Semiconductor], NCP5212A_09 Datasheet
NCP5212A_09
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NCP5212A_09 Summary of contents
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NCP5212A, NCP5212T Single Synchronous Step-Down Controller The NCP5212A/NCP5212T is a synchronous stepdown controller for high performance systems battery−power systems. The NCP5212A/NCP5212T includes a high efficiency PWM controller. A pin is provided to allow two devices in interleaved operation. An internal ...
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TPAD PGOOD AGND Thermal Shutdown UVLO 1 VIN Control VCC UVLO NCP5212A/NCP5212T Control Control Logic, Protection, RAMP Generator and PWM Logic ENABLE 2 VCC MASTER SLAVE 3 SYN Level 4 EN Control VREF Error Amplifier 5 Figure 1. ...
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PGOOD VIN 1 VCC 2 SYN 3 EN_SKIP EN_SKIP 4 Figure 2. Typical Application Circuit (Single Device Operation VCCP 12 DL/TRESET 11 NCP5212A/NCP5212T AGND PGND 10 CS http://onsemi.com 3 VIN ...
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PGOOD1 EN=VEN_Master PGOOD2 EN=VEN_Slave Figure 3. Typical Application Circuit (Dual Device Operation VIN VCCP 1 12 VCC DL/TRESET NCP5212A NCP5212T AGND SYN PGND 3 10 Master EN CS ...
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PIN FUNCTION DESCRIPTION Pin No. Symbol 1 VIN Input voltage used for feed forward in switcher operation. 2 VCC Supply for analog circuit 3 SYN Synchronization interleaving use This pin serves as two functions. Enable: Logic control for ...
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ELECTRICAL CHARACTERISTICS (V Characteristics SUPPLY VOLTAGE Input Voltage V Operating Voltage CC SUPPLY CURRENT V Quiescent Supply Current in IVCC_Master CC Master operation V Quiescent Supply Current in CC Slave Operation V Shutdown Current CC BST Quiescent Supply Current in ...
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ELECTRICAL CHARACTERISTICS (V 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 (V Characteristics OVERCURRENT PROTECTION SETTING Adjustable OC Threshold ((CS+)−(CS−)) 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 ...
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ELECTRICAL CHARACTERISTICS (V 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. = ...
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TYPICAL OPERATING CHARACTERISTICS 0.83 0.82 0.81 0.80 0.79 0.78 0.77 −40 − AMBIENT TEMPERATURE (°C) Figure 4. V Voltage vs Ambient Temperature ref 315 310 305 300 295 290 285 −40 − AMBIENT TEMPERATURE (°C) Figure ...
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TYPICAL OPERATING CHARACTERISTICS 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 Top to Bottom: EN, SWN, Vo, PGOOD Figure 11. Powerdown Sequence Top to ...
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General The NCP5212A/NCP5212T synchronous stepdown power controller contains a PWM controller for wide battery/adaptor voltage range applications The NCP5212A/NCP5212T includes power good voltage monitor, soft−start, overcurrent protection, undervoltage protection, overvoltage protection and thermal shutdown. The NCP5212A/NCP5212T features power saving function ...
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Once the large transient occurs, the COMP signal may be 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 period, ...
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The load line impendence R is given by DCR * Gain_CS * Where DCR is inductor DC resistance. Gain_CS is a gain from [(CS+)−(CS−)] to IDRP Gain (At electrical table, the symbol is IDRP_GAIN), ...
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This is used to sense the voltage level which is developed by a resistor Rocp program the overcurrent detection threshold voltage. For typical application, the V is set as default value(40 ...
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R224 R7 PGOOD LED1 PGOOD M5 TPAD U1 16 R21 VIN 1 C23 R23 +5V VCC 2 C21 C22 R2 AGND SYN SYNC JP3 5 R216 JP2 COMP R213 C214 C213 C28 R220 D22 R29 M1 ...
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DEMO BOARD BILL OF MATERIAL BOM Designator Qty Description U1 1 Single Synchronous Stepdown R1 1 Chip Resistor, $ Chip Resistor, $ Chip Resistor, $5% R21 1 Chip Resistor, $5% R22 1 Chip Resistor, $5% R23 ...
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DEMO BOARD BILL OF MATERIAL Item Compensation Network Power Stage & Current Sense *C2A is the capacitor soldered right beside of C2. DEMO BOARD BILL OF MATERIAL Item Compensation Network Power Stage & Current Sense ORDERING INFORMATION Device NCP5212AMNTXG NCP5212TMNTXG ...
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Ç Ç PIN 1 REFERENCE Ç Ç Ç Ç 0.15 C TOP VIEW 2X 0.15 C (A3) DETAIL B 0.10 C 16X 0.08 C SIDE VIEW A1 NOTE 4 DETAIL A D2 16X 5 8 ...