EVL185W-LEDTV STMicroelectronics, EVL185W-LEDTV Datasheet - Page 22

• Manufacturer Part Number: EVL185W-LEDTV
• Description: DEMO BOARD VIPER27L L6564 L6599A
• Manufacturer: STMicroelectronics
• Series: VIPER™r

Specifications of EVL185W-LEDTV

• Design Resources: EVL185W-LED BOM EVL185W-LED Schematic
• Main Purpose: Power Supply with PFC
• Outputs And Type: 4, Isolated
• Power - Output: 185W
• Voltage - Output: 130V, 24V, 12V, 5V
• Current - Output: 620mA,2A, 4A, 2A
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: -
• Frequency - Switching: -
• Board Type: Fully Populated
• Utilized Ic / Part: Viper27L, L6564, L6599A
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11255

Functional check
22/43
Figure 37. Startup at full load and 115 Vac by on/off signal - detail
Output cross regulation has been checked. Resonant feedback signal is obtained by
sensing all three outputs. Therefore, any load change relevant to any output could affect the
other output regulation. The following figures show the effect of load transient on any of the
output loads.
Figure 38
load and vice versa. Because the 12 V output is dedicated to TV panel supply, 50 % of
nominal load is assumed as the minimum load.
Figure 39
maximum functional load and vice versa. The 24 V output is dedicated to the audio supply
and load transient is from 0 % to 100 % of nominal load.
Figure 40
maximum functional load and vice versa. The 130 V output is dedicated to supplying the
LED backlight. A residual 1 W load is assumed for backlight circuitry driving even at
minimum load.
The maximum measured voltage deviation for 12 V output is 200 mV, for 24 V it is 400 mV
and for 130 V it is 2 V.
shows output regulation in the case of 12 V load transient from 50 % to maximum
shows output regulation in the case of 24 V load transient from minimum to
shows output regulation in the case of 130 V load transient from minimum to
CH1: HB voltage
CH3: LVG
Doc ID 18449 Rev 1
CH2: LINE (pin #7)
CH4: Res. current
AN3339