STIL04-P5

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Symbol

Parameter

Value

Unit

off-state voltage

700

V

Average on state current at the OUT terminal

(180° conduction angle for the internal power

switches)

Tj = 150°C

4A

RMS on state current at the OUT terminal

(180° conduction angle for the internal power

switches)

Tj = 150°C

4.4

A

Non repetitive surge peak on-state current

(Tj initial = 25°C)

tp = 10ms

sinusoidal

65

A

I

I

tp = 10ms

21

A

Critical rate of rise of on state current

Ipt1 + Ipt2 = 20mA

Tj = 25°C

Tj = 150°C

100

A/µs

Tstg

Storage temperature range

-40 to +150

°C

Junction temperature range

0 to +150

°C

ABSOLUTE MAXIMUM RATINGS (Limiting value)

Symbol

Parameter

Value

Unit

Junction to case

2

°C/W

Junction to ambient (minimum footprint)

60

THERMAL PARAMETERS

The STIL04 is connected in parallel with the bridge diode and the inrush power resistor Ri (fig. A2). During

start up, the two unidirectional ASD™ power switches of the STIL04 are opened. The inrush current flows

through the diodes of the bridge and the external inrush power resistor Ri. Since the main converter turns

ON, the auxiliary power supply coupled with the main transformer, supplies the energy required to close

the two power switches of the STIL04. At the normal state, the two bottom diodes of the bridge rectifier and

the two unidirectional switches of the STIL04 rectify the AC line current.

When the STIL04 is used with a PFC boost converter, the inrush current circuit remains active after a short

AC line dropout (see fig. A5). In that configuration, since the AC line disappears, the PFC controller and the

auxiliary power supply of the STIL turns OFF. The two switches of the STIL are opened. The output bulk

capacitor Cb is discharging and it is providing the energy to the main converter. When the AC line recovers,

the two switches remain opened and recharging inrush current of the capacitor Cb is deviated and limited

through the resistor Ri. When the capacitor is charged, the PFC turns ON again and the two switches of the

STIL switch ON.

More details on the design and operation of the driver circuit of figure A5 can be found in the application

note “AN1600 - STIL: Inrush Current Limitation Device for Off-Line Power Converter”.

Functional Description