AN8016NSH データシートの表示（PDF） - Panasonic Corporation

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AN8016NSH

Single-channel 1.8-volt step-up DC-DC converter control IC

Panasonic Corporation 

AN8016NSH

Voltage Regulators

s Application Notes (continued)

[3] Timing charts (internal waveforms)

Off pin voltage

Power on

Supply voltage (VCC)

Error amplifier output (FB)

S.C.P. pin voltage

SS pin voltage

Triangular wave (CT)

Out pin waveform

Soft start operation

Maximum duty: 80%

Figure 1. PWM comparator operating waveforms

High

Low

2.4 V

2.0 V

1.27 V

1.22 V

0.7 V

0.6 V

0.4 V

0.2 V

High

Low

Short-circuit protection

comparator threshold level

Dead time voltage (VDT)

Error amplifier output (FB)

Triangular wave (CT)

Out pin waveform

S.C.P. pin voltage

Short-circuit protection

comparator output

2.0 V

1.27 V

0.6 V

tPE

Figure 2. Short-circuit protection operating waveforms

High

Low

1.27 V

0.06 V

High

Low

11

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