STEVAL-ISA033V1 STMicroelectronics, STEVAL-ISA033V1 Datasheet - Page 7

• 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 15. Switching frequency vs. tempera-
fsw (KHz)
320
310
300
290
280
Figure 17. Dead time vs Ct.
1,500
1,200
Figure 19. Delay to output vs junction temperature.
42
40
38
36
34
32
30
28
Dead time [ns]
900
600
300
-50
-50
Delay to output (ns)
-25
-25
Rt =4.5Kohm
ture.
2
0
0
Timing capacitor Ct [nF]
25
25
4
Tj (°C)
Tj (°C)
50
50
Rt= 4.5Kohm, Ct = 1nF
Vcc = 15V, V15=Vref
6
75
75
PIN10 = OPEN
1V pulse
on PIN13
100
100
8
V15 = Vref
125
125
V15 = 0V
10
150
150
Figure 16. Switching frequency vs. temperature.
fsw (KHz)
320
310
300
290
280
Figure 18. Maximum Duty Cycle vs Vpin3.
Figure 20. E/A frequency response.
G [dB]
150
100
3.5
2.5
1.5
50
DC Control Voltage Vpin3 [V]
0.01
3
2
1
0
-50
0
-25
10
0.1
20
0
1
30
V15 = Vref
25
Duty Cycle [%]
40
10
f (KHz)
Tj (°C)
50
Rt= 4.5Kohm, Ct = 1nF
Vcc = 15V, V15= 0
50
100
Rt = 4.5Kohm,
Ct = 1nF
60
75
L5991 - L5991A
1000
70
100
V15 = 0V
80
10000 100000
125
90 100
Phase
7/23
150
140
120
100
80
60
40
20