STEVAL-ISA054V1 STMicroelectronics, STEVAL-ISA054V1 Datasheet - Page 13

• Manufacturer Part Number: STEVAL-ISA054V1
• Description: BOARD DEMO STW9N150 100W 3PHASE
• Manufacturer: STMicroelectronics
• Type: MOSFET & Power Driverr

Specifications of STEVAL-ISA054V1

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 2, Isolated
• Power - Output: 100W
• Voltage - Output: 24V, 3.3V or 5V
• Current - Output: 4A, 1A
• Voltage - Input: 180 ~ 265VAC & 320 ~ 480VAC
• Regulator Topology: Flyback
• Frequency - Switching: 250kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L5970, STW9N150, UC3844B
• Input Voltage: 180 V to 265 V, 400 V
• Output Voltage: 3.3 V, 5 V, 24 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: STW9N150
• Kit Application Type: Power Management
• Application Sub Type: Auxiliary Power Supply
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: STW9N150
• Other names: 497-8849

UM0674
4
DC-DC converter
Figure 6
DMOS transistor, with a typical R
a bootstrap capacitor, and guarantees high efficiency. An internal oscillator fixes the
switching frequency at 250 kHz to minimize the size of the external components. The power
IC features several protections, such as a pulse-by-pulse current limit with the internal
frequency modulation aimed to an effective constant current short-circuit protection,
feedback disconnection and thermal shutdown. Finally, it can be synchronized using a
dedicated pin as well as inhibited for reduced stand-by power consumption and time
sequence operations.
Figure 6.
24V
10uF 25V Ceramic
shows the schematic of the converter. The device uses an internal P-channel
Cin
DC-DC converter
8
7
6
5
VCC
GND
VREF
FB
L5970D
SY NC
COMP
OUT
INH
U2
C8
220p
1
2
3
4
Doc ID 15343 Rev 1
DS(on)
R12
4.7K
C7
22nF
of 250 mΩ as switching element to avoid the use of
D7
STPS2L25U
L4
33uH >1A
SW1
R16
5.6K 1%
R15
3.3K 1%
R14
10K 1%
+
Cout
470uF 10V
DC-DC converter
+3.3V / +5V
CON4
2
1
AM01986v1
J5
13/23