NCV8871LVBGEVB ON Semiconductor, NCV8871LVBGEVB Datasheet
NCV8871LVBGEVB
Specifications of NCV8871LVBGEVB
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NCV8871LVBGEVB Summary of contents
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NCV8871 Automotive Grade Non-Synchronous Boost Controller The NCV8871 is an adjustable output non−synchronous boost controller which drives an external N−channel MOSFET. The device uses peak current mode control with internal slope compensation. The IC incorporates an internal regulator that supplies ...
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EN/ EN/SYNC OSC 1 SYNC Figure 1. Simplified Block Diagram and Application Schematic PACKAGE PIN DESCRIPTIONS Pin Symbol Pin No. 1 EN/SYNC Enable and synchronization input. The falling edge synchronizes the internal oscillator. ...
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ABSOLUTE MAXIMUM RATINGS (Voltages are with respect to GND, unless otherwise indicated) Dc Supply Voltage (VIN) Peak Transient Voltage (Load Dump on VIN) Dc Supply Voltage (VDRV, GDRV) Peak Transient Voltage (VFB) Dc Voltage (VC, VFB, ISNS) Dc Voltage (EN/SYNC) ...
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ELECTRICAL CHARACTERISTICS (−40°C < T guaranteed by test, design or statistical correlation. Characteristic Symbol GENERAL Quiescent Current, Sleep Mode I q,sleep Quiescent Current, Sleep Mode I q,sleep Quiescent Current, No switching I q,off Quiescent Current, Switching, I q,on normal operation ...
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ELECTRICAL CHARACTERISTICS (−40°C < T guaranteed by test, design or statistical correlation. Characteristic Symbol CURRENT SENSE AMPLIFIER Current limit threshold voltage V Current limit, Response time Overcurrent protection, %V Threshold voltage Overcurrent protection, t Response Time VOLTAGE ERROR OPERATIONAL TRANSCONDUCTANCE ...
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ELECTRICAL CHARACTERISTICS (−40°C < T guaranteed by test, design or statistical correlation. Characteristic Symbol SHORT CIRCUIT PROTECTION Startup blanking period %t scp,dly Hiccup−mode period %t hcp,dly Short circuit threshold voltage %V Short circuit delay t THERMAL SHUTDOWN Thermal shutdown threshold ...
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TYPICAL PERFORMANCE CHARACTERISTICS 25° INPUT VOLTAGE (V) IN Figure 2. Sleep Current vs. Input Voltage −50 0 ...
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TYPICAL PERFORMANCE CHARACTERISTICS 1.205 1.203 1.201 1.199 1.197 1.195 − JUNCTION TEMPERATURE (°C) J Figure 8. Reference Voltage vs. Temperature 8.0 7.5 7.0 6.5 6.0 5.5 5.0 − 25° ...
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Oscillator PWM Comparator − Voltage Error NCV8871 Current Mode Control The NCV8871 incorporates a current mode control scheme, in which the PWM ramp signal is derived from the power switch current. This ramp signal is compared to the ...
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VIN drops below the UVLO threshold or the part is disabled. Internal Soft−Start To insure moderate inrush current and reduce output overshoot, the NCV8871 features a soft start which charges a capacitor with a fixed ...
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The maximum average inductor current can be calculated as follows OUT OUT(max L,avg V IN(min) The Peak Inductor current can be calculated as follows max IN(min L,peak L,avg Lf ...
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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. “ ...