nx2147 Microsemi Corporation, nx2147 Datasheet
nx2147
Related parts for nx2147
nx2147 Summary of contents
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... SINGLE CHANNEL MOBILE PWM CONTROLLER WITH DESCRIPTION The NX2147 controller step down switching con- troller with ability to dynamically adjust the output volt- age designed for applications such as Graphic Proces- sor Core voltage in Notebook PC products. It allows this by adjusting the reference input of the PWM comprator as oppose to the traditional method of feed- back adjustment ...
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... Operating quiescent current Shut down current Rev. 1.6 Rev. 1.8 03/09/09 12/28/ 150 150 HDRV VREF_OC PVCC 9 8 SYM Test Condition ENSW=GND switching, ENSW=5V ENSW=GND NX2147 o =25 C, unless otherwise A Min TYP MAX Units V 4 4.5 5 ...
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... I=200mA sink 10% to 90% 90% to 10% Ldrv going Low to Hdrv going H) High, 10% to 10% (Ldrv) I=200mA source R (Ldrv) I=200mA sink 10% to 90% 90% to 10% SW going Low to Ldrv going L) High, 10% to 10% NX2147 Min TYP MAX Units 4 390 ns 380 590 800 ns 2.475 2.5 2.525 ...
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... Under voltage trigger point Over voltage protection Over voltage tripp point Internal Schottky Diode Forward voltage drop Rev. 1.6 Rev. 1.8 03/09/09 12/28/09 SYM Test Condition Leave it open or use limits in spec ENSW/MODE=VCC ENSW/MODE=GND forward current=50mA NX2147 Min TYP MAX Units 80% VCC+0 VCC .3V V 60% 80% VCC VCC V 60% ...
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... GND for shutdown mode, floating or connected to 2V for the synchronous mode. TON 16 VIN sensing input. A resistor connects from this pin to VIN will set the fre- quency. A 1nF capacitor from this pin to GND is recommended to ensure the proper operation. 17 PAD Analog ground. Rev. 1.6 Rev. 1.8 03/09/09 12/28/09 PIN DESCRIPTION NX2147 5 ...
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... VP(3) R2 start soft start VCC ENSW 1M /MODE(15) MODE 1M SELECTION OVP AGND(PAD) FBUVLO_latch DO(5) SCHIMTTER TRIGGER GPIO0(14) D1(4) SCHIMTTER TRIGGER GPIO1(6) Figure 2 - Simplified block diagram of the NX2147 Rev. 1.6 Rev. 1.8 03/09/09 12/28/09 4.3/4.1 Disable_B POR Thermal shutdown start ODB HD FET Driver R HD_IN Q S Mini offtime 400ns POR Diode ...
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... GPIO1 8 LDRV 10 VREF_OC FDS6676AS 7 PGND 200k VOUT R5 634k 5 D0 AGND 6 VOUT TABLE: GPIO0 GPIO1 VOUT 0.9 NX2147 R6 499k VIN 7V~22V CI1 2x10uF M1 FDS6294 Vout (see table below) /12A 1uH CO1 2R5TPE330MC 330uF LOAD C7 470p 7 ...
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... Rev. 1.6 Rev. 1.8 03/09/09 12/28/09 Value Manufacture 10uF/X5R/25V 2R5TPE330MC SANYO 1uF 0.1uF 10nF 1nF 470p RL-8250-1.4-1R0M RENCO FDS6294 FAIRCHILD FDS6676AS FAIRCHILD 10 100k 88.7k 200k 634k 499k 10 2.2 NX2147 NEXSEM INC. NX2147 8 ...
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... Fig.5 10A step response( CH1 VOUT AC 50mV/DIV, CH4 Output current 5A/DIV) Fig.7 D0=0, D1 from low to high(CH1 D0 2V/DIV, CH2 VOUT 0.1V/DIV 0.8V OFFSET, CH3 INDUC- TOR CURRENT 5A/DIV, CH4 VP 0.1V/DIV 0.8V OFFSET) OUTPUT EFFICIENCY (VIN=12V,VOUT=1.09V 100 1000 OUTPUT CURRENT (mA) Fig.9 Output efficiency NX2147 10000 9 ...
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... L 0.325 M Rev. 1.6 Rev. 1.8 03/09/09 12/28/09 Dimensions In Inches MAX MIN 0.800 0.028 0.050 0.000 0.203REF 0.300 0.007 3.050 0.116 1.750 0.063 3.050 0.116 1.750 0.063 0.50BSC 0.450 0.013 1.5REF NX2147 MAX 0.031 0.002 0.008REF 0.012 0.120 0.069 0.120 0.069 0.50BSC 0.018 0.059REF 10 ...
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