EVLVIP16H-4WFL STMicroelectronics, EVLVIP16H-4WFL Datasheet - Page 16

• Manufacturer Part Number: EVLVIP16H-4WFL
• Description: EVAL BOARD FOR VIPER16HD ISO PSU
• Manufacturer: STMicroelectronics
• Series: VIPer™ plusr

Specifications of EVLVIP16H-4WFL

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Power - Output: 4W
• Voltage - Output: 16V
• Current - Output: 250mA
• Voltage - Input: 85 ~ 265VAC
• Regulator Topology: Flyback
• Frequency - Switching: 115kHz
• Board Type: Fully Populated
• Utilized Ic / Part: VIPer16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8835

Burst mode
13
16/24
Burst mode
When the voltage V
OFF state and the consumption is reduced to I
page
as it exceeds the threshold V
consumption level equal to I
mode” and reported on
down even to a few hundreds hertz, thus minimizing all frequency-related losses and
making it easier to comply with energy saving regulations. During the burst mode, the drain
current limit is reduced to the value I
avoid the audible noise issue.
Figure 24. Load-dependent operating modes: timing diagrams
Figure 23. COMP pin voltage versus I
6. As reaction at the energy delivery stop, the V
V
COMPL
+V
COMPL_HYS
I
V
V
Dlim_bm
I
COMP
COMPL
DRAIN
I
I
I
DD1
DD0
DD
COMP
Figure 24 on page
drops below the threshold, V
DD1
COMPL
Doc ID 15232 Rev 4
current. This ON-OFF operation mode, referred to as “burst
+ V
Dlim_bm
COMPL_HYS
DRAIN
16, reduces the average frequency, which can go
(reported on
DD0
Burst Mode
, the converter starts switching again with
current, as reported on
COMP
COMPL
Table 8 on page
voltage increases and as soon
, the power MOSFET is kept in
7) in order to
Table 7 on
time
time
time
VIPER16