STEVAL-ISA018V1 STMicroelectronics, STEVAL-ISA018V1 Datasheet - Page 6

• Manufacturer Part Number: STEVAL-ISA018V1
• Description: BOARD EVAL BASED ON L6599
• Manufacturer: STMicroelectronics

Specifications of STEVAL-ISA018V1

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Power - Output: 150W
• Voltage - Output: 24V
• Current - Output: 6A
• Voltage - Input: 185 ~ 265 or 85 ~ 185 VAC
• Regulator Topology: Resonant
• Board Type: Fully Populated
• Utilized Ic / Part: L6599
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-8265

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Demonstration board description
Regulation of the output voltage is performed by secondary feedback on the 24 V output.
The feedback network consists of a programmable voltage reference, TSM1011, driving an
optocoupler which ensures the required insulation between the primary and secondary
sections. The optotransistor drives the feedback pin (RFMIN) which controls the operation of
the IC.
The resonant transformer is based on a two-slot coil former and an EER39-PC40 ferrite
core, manufactured by TDK. The transformer ensures safety insulation in accordance with
EN60950.
In
and the geometrical characteristics are shown respectively.
Table 2.
Figure 3.
Table 2
the main features of the transformer are listed and in
Leakage inductance, Llk
Primary inductance, Lp
Resonant transformer specifications
Resonant transformer: pinout
Secondary turns, Ns
Auxiliary turns, Naux
Primary turns, Np
Coil former
Parameter
Core
Doc ID 15906 Rev 1
2x7 (0.2x30) (bifilar) – 40 m
32 (0.15x20) – 220 m
8 (on primary winding)
EER39 – PC40
450 µH ± 10%
150 µH ± 10%
Figure 3
Value
2 slot
and
Ω
4
(DC)
Ω
the pinout
(DC)
UM0727