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L4984D Datasheet(PDF) 31 Page - STMicroelectronics

No. de pieza L4984D
Descripción Electrónicos  CCM PFC controller
PDF  35 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4984D Datasheet(HTML) 31 Page - STMicroelectronics

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L4984D
Power management and housekeeping functions
Table 6. Summary of L4984D idle states
Condition
Caused or revealed by IC behavior
Restart
condition
Typical IC
consumption
SS
activation
UVLO
VCC < VCCOff
Disabled
VCC > VCCOn
65 µA
Yes
Standby
VPFC_OK < VPFC_OK_D
Stop
switching
VPFC_OK >
VPFC_OK_E
1.5 mA
No
AC brownout VVFF < VDIS
Stop
switching
VVFF > VEN
1.5 mA
Yes
OVP
VPFC_OK > VPFC_OK_S
Stop
switching
VPFC_OK <
VPFC_OK_R
2.2 mA
No
Feedback
failure
VPFC_OK > VPFC_OK_S
AND
VINV < 1.66 V
Latched-off
VCC < VCCrestart
then
VCC > VCCOn
180 µA
Yes
Low
consumption
VCOMP < 2.4 V
Burst mode
VCOMP > 2.4 V
1.8 mA
No
Saturated
boost
inductor
Vcs > VCS_th
Stop
switching
Auto restart
after 300 ìs
4 mA
No



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