STEVAL-ISA004V1 STMicroelectronics, STEVAL-ISA004V1 Datasheet - Page 10

• Manufacturer Part Number: STEVAL-ISA004V1
• Description: EVAL BOARD DUAL OUTPUT VIPER22A
• Manufacturer: STMicroelectronics
• Series: VIPER™r
• Type: MOSFET & Power Driverr

Specifications of STEVAL-ISA004V1

• Mfg Application Notes: VIPer22A Dual Output - AppNote AN1736
• Design Resources: STEVAL-ISA004V1 Gerber Files STEVAL-ISA004V1 Schematic STEVAL-ISA004V1 Bill of Materials
• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 2, Isolated
• Power - Output: 10W
• Voltage - Output: 5V, 12V
• Current - Output: 1A, 420mA
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: Flyback
• Frequency - Switching: 60kHz
• Board Type: Fully Populated
• Utilized Ic / Part: VIPer22A
• Architecture: Analog
• Applications: Power
• Input Voltage: 3.3 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: VN808CM
• Other names: 497-5864

Operations
10/21
Figure 6.
It is then possible to build the total DC transfer function between I
Figure 6 on page 10
associated minimum turn on time. This imposes a minimum drain current under which the
device is no more able to control it in a linear way. This drain current depends on the primary
inductance value of the transformer and the input voltage. Two cases may occur, depending
on the value of this current versus the fixed 85 mA value, as described above.
I
FB
transfer function
. This figure also takes into account the internal blanking time and its
t
---------------------------------------- -
t
---------------------------------------- -
ONmin
ONmin
L
L
85mA
⋅
⋅
V
V
1
2
I
IN
IN
Doc ID 12050 Rev 2
Dpeak
0
I
Dlim
VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E
I
FBsd
Part
threshold
masked
by
D
the
and I
I
I
FBsd
FB
FB
as shown on