STEVAL-TSP001V1 STMicroelectronics, STEVAL-TSP001V1 Datasheet - Page 13

• Manufacturer Part Number: STEVAL-TSP001V1
• Description: BOARD EVAL POE STHS4257A/L6565D
• Manufacturer: STMicroelectronics
• Type: Other Power Managementr

Specifications of STEVAL-TSP001V1

• Main Purpose: Special Purpose DC/DC, Power Over Ethernet
• Outputs And Type: 2, Isolated
• Power - Output: 10W
• Voltage - Output: 3.3V, 1.2V
• Current - Output: 650mA, 650mA
• Voltage - Input: 48V
• Regulator Topology: Buck
• Frequency - Switching: 30kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6565
• Output Voltage: 3.3 V, 12 V
• Dimensions: 127 mm x 38.1 mm
• Interface Type: Ethernet
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6565
• Other names: 497-6427; STEVAL-TSP001V1

APPLICATION IDEAS
Here follows a series of ideas/suggestions aimed at either improving performance or solving common applica-
tion issues of L6565-based power supplies.
Figure 21. Enhanced turn-off for big MOSFET's drive
Figure 22. Latched shutdown on: a) feedback disconnection; b) overload or short circuit
Figure 23. Secondary Feedback loop configurations
COMP
2
L6565
R
A
1
8
INV
Vcc
R
B
a)
TL431
BC327
a)
Vout
L6565
Vcc
BC337
DRIVER
1N4148
INV
8
GND
L6565
1
L6565
I
COMP
COMP
8
6
2
Vcc
COMP
2
7
b)
GD
TL431
BC327
Vout
BC337
L6565
Rs
INV
1
Q
8
4
b)
CS
Vcc
BC327
Vcc
Roff
1N4148
c)
8
L6565
Rs
2
TL431
COMP
L6565
13/17
Vout