PKS604P View Datasheet(PDF) - Power Integrations, Inc

Part Name

Description

MFG CO.

PKS604P

PeakSwitch Family Enhanced, Energy-Efficient, Off-Line Switcher IC With Super Peak Power Performance

Power Integrations, Inc 

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PKS603-607

Parameter

Conditions

Symbol

SOURCE = 0 V; TJ = -40 to 125 °C

See Figure 18

Min

Typ

Max Units

(Unless Otherwise Specified)

OUTPUT (cont.)

Auto-Restart

ON Time

tAR

TJ = 25 °C

See Note J

30

ms

Auto-Restart

OFF Time

tAROFF

See Note K

5

s

NOTES:

A. Total current consumption is the sum of IS1 and IDSS when EN/UV pin is shorted to ground (MOSFET not

switching) and the sum of IS2 and IDSS when EN/UV pin is open (MOSFET switching).

B. Since the output MOSFET is switching, it is difficult to isolate the switching current from the supply current at the

DRAIN. An alternative is to measure the BYPASS pin current at 6.1 V.

C. See Typical Performance Characteristics section for BYPASS pin startup charging waveform.

D. BYPASS pin is externally supplied (bias winding).

E. For current limit at other di/dt values, refer to Figure 25.

F. This parameter is derived from characterization.

G. This parameter is derived from the change in current limit measured at 1X and 4X of the di/dt shown in the ILIMIT

specification.

H. IDSS1 is the worst case OFF state leakage specification at 80% of BVDSS and maximum operating junction

temperature. IDSS2 is a typical specification under worst case application conditions (rectified 265 VAC) for no-load

consumption calculations.

I. Breakdown voltage may be checked against minimum BVDSS specification by ramping the DRAIN pin voltage up

to but not exceeding minimum BVDSS.

J. Auto-restart on time has the same temperature characteristics as the oscillator (inversely proportional to

frequency). Auto-restart on time is extended during startup and certain fault conditions because the controller

reduces its oscillator clock frequency to prevent excessive drain currents. If excessive drain currents are still

occuring half way through the auto-restart on time, output MOSFET switching is disabled for the remainder of that

auto-restart on time episode (if the line is not sensed) or the supply latches off (if the line is sensed and adequate

line voltage is present).

K. Only applicable if no UV resistor is present at the EN/UV pin. 5 s applies only if the preceding switching auto-

restart event did not result in EN/UV pin going low. In that event, the first auto-restart off-time is 150 ms.

16

Rev. I 02/07

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