AP4341S datasheet(4/8 Pages) DIODES

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AP4341S

Document number: DS38219 Rev. 2 - 2

4 of 8

www.diodes.com

December 2015

AP4341S

Operation Description

VCC

Dynamic

VON

VTRI

VOFF

VOVP

VTRI

IVCC

IDIS

UVLO

VDIS

IOVP

2ms

tDIS

Figure 1. Typical Waveforms of AP4341S

When VCC voltage is beyond power-on voltage (VON), the AP4341S starts up. The OUT pin asserts a periodical pulse and oscillation period is

tOSC. When VCC voltage is beyond trigger voltage (VTRI), the periodical pulse in OUT pin is discontinued. When VCC voltage is beyond discharge

voltage (VDIS), the discharge circuit will be enabled, a 1mA current will flow into VCC pin. When VCC voltage is higher than overshoot voltage

(VOVP), the AP4341S will enable a discharge circuit until the VCC voltage falls below the overshoot voltage. At the same time, the periodical pulse

in OUT pin will be disabled.

When the VCC voltage is below power-off voltage (VOFF), the AP4341S will be shut down.

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