UC3848G-D08-T UTC [Unisonic Technologies], UC3848G-D08-T Datasheet - Page 8

• Manufacturer Part Number: UC3848G-D08-T
• Description: HIGH PERFORMANCE CURRENT MODE CONTROLLERS
• Manufacturer: UTC [Unisonic Technologies]

UC3848
(7)Protection section (Cont.)
OLP
not inactive during soft-start phase. OLP case as followed FIG. 6. The test circuit as followed FIG.8. T
OVP
V
(V
OVP will shutdown the switching of the power MOSFET whenever V
The test circuit as followed FIG. 9.
FB
CC
>V
>V
After soft-start phase end, IC will shutdown driver if over load state occurs for continual T
There are two kinds of OVP circuits, the first OVP function are enabled only when V
FUNCTIONAL DESCRIPTION(Cont.)
FB(OLP)
OVP1
) for continual a blanking time. The first OVP function will not inactive after soft-start phase. The second
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during soft-start phase. During above condition, driver will be shutdown if over voltage state occurs
FIG.8 OLP test circuit
FIG.6 OLP case
CC
>V
LINEAR INTEGRATED CIRCUIT
OVP2
FIG.9 OVP test circuit
. The first OVP case as followed FIG.7.
FIG.7 OVP case
D-OLP
. OLP function will
SS
D-OLP
<V
SS (DEACT)
QW-R103-033.F
=5.53×T
8 of 11
SS.
&