Pro'sKit MT-7600 Manual de usuario descargar pdf (Pagina 7)

Evaluates: MAX5051

MAX5051 Evaluation Kit

_______________________________________________________________________________________ 7

1ms/div

OUT

100mV/div

OUT

5A/div

LOAD CAPACITOR: NO EXTERNAL

CAPACITOR REQUIRED FOR TRANSIENT RESPONSE.

Figure 5. Output Voltage Response to Step Change in Load

Current (50%-75%-50% of I

OUT

(max), di/dt = 5A/ms, 7.5A to

11.25A to 7.5A)

2µs/div

OUT

50mV/div

LOAD CAPACITANCE: 0.1µF CERAMIC CAPACITOR

SCOPE BANDWIDTH: 20MHz.

Figure 6. Output Voltage Ripple at Nominal Input Voltage and

Rated Load Current

LOAD CURRENT (A)

OUTPUT VOLTAGE (V)

010

HICCUP POINT

51520

OUTPUT VOLTAGE

vs. LOAD CURRENT

Figure 7. Output Voltage vs. Load Current Showing Typical

Limit Curves and Converter Shutdown Points (Note: Hiccup

Current Limiting Provides Current Foldback Mechanism that

Helps to Minimize Power-Supply Power Dissipation During

Fault Conditions)

A: 1ms/div

B: 20ms/div

OUT

10A/div

OUT

10A/div

Figure 8. Load Current (10A/div) as a Function of Time when

Converter Attempts to Turn On into a 0.050Ω Short Circuit

(Also Acts as Current-Sense Resistor)

1 2 3 4 5 6 7 8 9 10 11

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