nx2155h Microsemi Corporation, nx2155h Datasheet - Page 8

• Manufacturer Part Number: nx2155h
• Description: Single Power Supply Synchronous Pwm Controller
• Manufacturer: Microsemi Corporation

Demoboard Waveforms
Rev.1.1
04/16/09
Fig.6 OCP protection during output short(CH1 VOUT
2V/DIV, CH4 OUTPUT CURRENT 5A/DIV)
SW 10V/DIV, CH4 OUTPUT CURRENT 2A/DIV)
Fig.4 Output ripple(CH1 VOUT AC 50mV/DIV, CH2
100.00%
90.00%
80.00%
70.00%
60.00%
50.00%
40.00%
30.00%
20.00%
10.00%
0.00%
0
Fig.8 Output efficiency
500
1000
Iout (mA)
1500
2000
2500
Fig.7 Output dynamic response(CH1 VOUT AC
200mV/DIV, CH4 OUTPUT CURRENT 500mA/DIV)
Fig.5 Startup( CH1 VOUT 2V/DIV)
NX2155H
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