AN4154 datasheet(4/21 Pages) STMICROELECTRONICS

Il numero della parte	AN4154

Spiegazioni elettronici	Power supply for energy meter and power line modem

PDF	21 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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4 / 21 page

Electrical specifications

AN4154

4/21

Doc ID 023578 Rev 2

Electrical specifications

Figure 1.

Block diagram

Table 1.

Input/output specifications

Parameters

Limits

Min. operating voltage, Vacmin

90 Vac

Max. operating voltage, Vacmax

265 Vac, 440 Vmax

Mains frequency, fL

50 Hz+/-3 Hz

Input / output isolation

Yes, Galvanic Isolation, >2.7 kV

Nominal output voltage, Vout

– 5 V/70 mA nominal, 1 A max.

– 3.3 V/30 mA nominal, 150 mA max.

– 12 V/2 mA nominal, 100 mA max.

– 5 V_ISO/ 2 mA nominal, 80 mA max.

Total output power, Pout

1 W nominal, 7.5 W (during transmission mode)

Typical efficiency @ 230 Vac

>75%

Output voltage peak-to-peak ripple

<100 mV

Protection

– Should be able to withstand 440 V for 3 hrs

– Short-circuit protection

Topology

Q-Resonant flyback converter, primary side

regulation

Reflected voltage of transformer (VR)

100 V

Max. ambient temperature

45 °C

Enclosure type

Open

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