A

8/97

TOP209/210

11

31.2

36.0

51.4

59.4

250

700

100

50

36

5.5

5.8

6.1

±50

0.6

1.2

1.6

0.5

0.8

1.1

ON-State

Resistance

OFF-State

Current

Breakdown

Voltage

Rise

Time

Fall

Time

DRAIN Supply

Voltage

Shunt Regulator

Voltage

Shunt Regulator

Temperature Drift

CONTROL Supply/

Discharge Current

OUTPUT

SUPPLY

T

T

See Note B, I

See Note C

I

Output MOSFET Enabled

Output MOSFET Disabled

Conditions

(Unless Otherwise Specified)

Parameter

Symbol

See Figure 12

Units

SOURCE = 0 V

T

Min

Typ

Max

Ω

µA

V

ns

ns

V

V

ppm/

°C

mA

R

DS(ON)

I

DSS

BV

DSS

t

R

t

F

V

C(SHUNT)

I

CD1

I

CD2

NOTES:

A. For specifications with negative values, a negative temperature coefficient corresponds to an increase in magnitude

with increasing temperature, and a positive temperature coefficient corresponds to a decrease in magnitude with

increasing temperature.

B. The breakdown & leakage measurements can be accomplished by using the TOPSwitch auto-restart feature. The

divide-by-8 counter in the auto-restart circuitry disables the output MOSFET from switching in 7 out of 8 cycles. To

place the TOPSwitch in one of these cycles, the following procedure can be carried out using the modified circuit of

Figure 12:

Measured

in a Typical

Flyback Converter Application

I

See Note B

V