STEVAL-ISA033V1 STMicroelectronics, STEVAL-ISA033V1 Datasheet - Page 18
![BOARD EVAL L5991/STP12NK80Z](/photos/9/15/91503/steval-isa033v1_sml.jpg)
STEVAL-ISA033V1
Manufacturer Part Number
STEVAL-ISA033V1
Description
BOARD EVAL L5991/STP12NK80Z
Manufacturer
STMicroelectronics
Type
Supervisory Circuitsr
Specifications of STEVAL-ISA033V1
Main Purpose
AC/DC, Primary Side
Outputs And Type
3, Isolated
Power - Output
55W
Voltage - Output
13.8V, 3.8V, 25V
Current - Output
3A, 350mA, 200mA
Voltage - Input
88 ~ 300VAC
Regulator Topology
Flyback
Board Type
Fully Populated
Utilized Ic / Part
L5991, STP12NK80Z
Input Voltage
88 V to 300 V
Output Voltage
3.8 V to 25 V
Product
Power Management Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency - Switching
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
L5991, STP12NK80Z
Other names
497-8226
STEVAL-ISA033V1
STEVAL-ISA033V1
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STEVAL-ISA033V1
Manufacturer:
STMicroelectronics
Quantity:
1
L5991 - L5991A
Figure 39. Typical E/A compensation networks.
Figure 40. Feedback with optocoupler.
Figure 41. Slope compensation techniques.
I
18/23
R
SENSE
R
SLOPE
R
B
OPTIONAL
ST-BY
R
C
ISEN
V
RCT
C
A
T
Error Amp compensation circuit for stabilizing any current-mode topology except
for boost and flyback converters operating with continuous inductor current.
Error Amp compensation circuit for stabilizing current-mode boost and flyback
topologies operating with continuous inductor current.
REF
R
P
From V
P
From V
16
4
2
13
O
R
L5991
12
R
i
R
R
O
d
d
i
SGND
L5991
C
f
C
f
5
I
VFB
R
6
COMP
COMP
SENSE
VFB
VFB
R
R
R
SLOPE
COMP
f
f
5
6
5
6
R
2.5V
2.5V
B
OPTIONAL
+
+
-
-
EA
EA
ST-BY
R
C
ISEN
V
RCT
A
T
REF
+
+
D97IN759
TL431
16
4
2
13
1.3mA
1.3mA
L5991
12
SGND
2R
2R
12
12
D97IN760A
R
R
SGND
V
OUT
SGND
SGND
L5991
12
10
13
D97IN507
OPTIONAL
OUT
ISEN
R
R
SLOPE
C
R
SLOPE
SENSE