ncp3102 ON Semiconductor, ncp3102 Datasheet
ncp3102
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ncp3102 Summary of contents
Page 1
... The NCP3102 is a high efficiency DC-DC buck converter designed to operate from 13.2 V supply. The device is capable of producing an output voltage as low as 0.8 V. The NCP3102 can continuously output 10 A through MOSFET switches driven by an internally set 275 kHz oscillator. The 40-pin device provides an optimal level of integration to reduce size and cost of the power supply ...
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... V CC 14,15,19,20,23 AGND COMP/DIS TGOUT 22 CPHS 24 BST 25 TGIN 26-34 PWRVCC 35 BG NCP3102 FAULT FAULT - PWM OUT S CLOCK OSC FAULT OSC LATCH - Figure 3. Detailed Block Diagram Power phase node. Drain of the low side power MOSFET and source of the high side MOSFET. ...
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... These devices have limited built-in ESD protection. The devices should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the device. 1. 60-180 seconds minimum above 237°C 2. Based on 110*100 mm double layer PCB with 35 mm thick copper plating. NCP3102 Symbol V MAX ...
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... J Guaranteed by Design V - 100 100 mV FB Guaranteed by Design Undershot V OUT Recovery Time 12 12 OUT http://onsemi.com 4 < 125°C for NCP3102B, 4.5 V < V < 13 Min Typ Max 4.5 13.2 4.5 26.5 2.3 3.5 1.8 10.3 25 5.6 12.5 600 3.6 4 0.4 0.792 0.8 0.808 0.788 0.8 0.812 ...
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... T , JUNCTION TEMPERATURE (°C) J Figure 6. Reference Voltage (V ref - JUNCTION TEMPERATURE (°C) J Figure 8. Soft-Start Sourcing Current vs. Temperature NCP3102 100 125 -25 ) vs. SW 4 3.8 3.7 3.6 3.5 75 100 125 -25 ) vs. Temperature Figure 7 ...
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... In steady state DC operation, the duty cycle will stabilize at an operating point defined by the ratio of the input to the output voltage. The NCP3102 can achieve an 80% duty cycle. There is a built in off-time which ensures that the bootstrap supply is charged every cycle. The NCP3102, which is capable of a 100 nsec pulse width (minimum), can allow ...
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... UVLO Undervoltage Lockout (UVLO) is provided to ensure that unexpected behavior does not occur when V support the internal rails and power the converter. For the NCP3102, the UVLO is set to ensure that the IC will startup when V reaches 4.0 V and shutdown when V CC below 3.6 V. This permits smooth operation from a varying 5 ...
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... To calculate the input startup current, the following equation can be used OUT OUT + I inrush t SS NCP3102 where I is the input current during startup, C BST inrush total output capacitance, V and t is the soft-start interval the inrush current is higher than the steady state input ...
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... COUT series resistance of the output capacitors. Table 1. shows values of voltage drop and recovery time of the NCP3102 demo board with the configuration shown in Figure 20. The transient response was measured for the load current step from (50% to 100% load). Input capacitors are 2x47 mF ceramic and 2x270 mF OS-CON, output capacitors are 2x100 mF ceramic and OS-CON as mentioned in Table 1 ...
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... External compensation components (R1, C9) are needed 0.753 for converter stability. They should be placed close to the 0.512 NCP3102. The feedback trace is recommended to be kept as 0.514 far from the inductor and noisy power traces as possible. The resistor divider and feedback acceleration circuit (R2, R3, R6, C13) is recommended to be placed near to input FB (Pin 16, NCP3102) ...
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... NCP3102 RLO10 PWRVCC BG PWRPHS Figure 20. Schematic Diagram of NCP3102 Evaluation Board http://onsemi.com 11 NC COMP FB AGND AGND VCC PWRGND PWRGND PWRGND ...
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... Schematic diagram of the NCP3102 demoboard is shown in Figure 20 and the actual PCB layout is shown in Figure 21. The corresponding bill of material is summarized in Table 3. Parameters of the board were tested with Input voltage V 13.2 V and with various output loads between 0 A and 10 A. The board includes a few components used for transient measurements ...
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... B37972K5333K-MR 1206 2250 001 11537 1206 2238 581 15641 1206 12067A471JAT1A 1206 12067A471JAT1A 1206 BAT54T1G SOD123 MBRS140T3G SMB DO5010H-332M DO5010H NTD4810NH DPAK NCP3102MNTXG QFN40 http://onsemi.com 13 Quantity Manufacturer 1 MULTICOMP 1 MULTICOMP 1 MULTICOMP 1 PHYCOMP 1 PHYCOMP 1 1 TYCO ELECT. 1 WELWYN 1 ...
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... NCP3102 Figure 21. PCB Layout Evaluation Board (110mm x 100mm) http://onsemi.com 14 ...
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... Measured Performance of NCP3102 Demoboard is Shown in Figures 22 Through 25 25° 70° RESISTANCE (kW) ocp Figure 22. Overcurrent Protection Figure 24. Transient Response ( 3 Step) Output out out Capacitors: 2x MLCC 100 mF and 820 mF OS-CON ...
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... Figure 26. Temperature Conditions (V ORDERING INFORMATION Device NCP3102MNTXG NCP3102BMNTXG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. NCP3102 = 3 Steady State, No Additional Cooling in out out Package ...
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... 40X e/2 BOTTOM VIEW 0.72 0.92 1.58 6.30 2.31 0.92 NCP3102 PACKAGE DIMENSIONS QFN40 6x6, 0.5P CASE 485AK-01 ISSUE A NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSIONS: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.15 AND 0.30mm FROM TERMINAL 4. COPLANARITY APPLIES TO THE EXPOSED E PAD AS WELL AS THE TERMINALS. ...
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... N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5773-3850 http://onsemi.com 18 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP3102/D ...