STEVAL-ISA033V1 STMicroelectronics, STEVAL-ISA033V1 Datasheet - Page 6

• 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

Figure 11. Output saturation.
L5991 - L5991A
Figure 9. Vref vs. junction temperature.
Vref [V]
5.05
4.95
16
14
12
10
Figure 13. UVLO Saturation
6/23
50
40
30
20
10
Ipin10 [mA]
5.1
4.9
8
6
0
5
-50
0
Vsat = V
0
-25
200
before turn-on
Vcc < Vccon
0.2
10
[V]
Vcc = 15V
Iref= 20mA
0
400
0.4
25
Vpin10 [mV]
600
Isource [A]
Tj (°C)
0.6
50
Vcc = Vc = 15V
Tj = 25°C
800
75
0.8
1,000 1,200 1,400
100
1
125
150
1.2
Figure 10. Vref SVRR vs. switching frequency.
Figure 12. Output saturation.
Figure 14. Timing resistor vs. switching frequency.
2.5
1.5
0.5
SVRR (dB)
120
5000
2000
1000
fsw (KHz)
80
40
2
1
0
500
200
100
0
50
20
10
1
0
V sat = V
0.2
Vc c = Vc = 15V
10
T j = 25°C
10
10
[V]
5.6nF
0.4
100
Rt (kohm)
Isink [A ]
fsw (Hz)
Vcc
Tj = 25°C
0.6
20
2.2nF
= 15V, V15 =0V
1000
0.8
30
Vcc=15V
Vp-p=1V
10000
1
100pF
220pF
470pF
1nF
1.2
40