TOP232-234

10

B

7/01

-250

-200

-150

-100

-50

0

50

100

150

200

250

300

350

400

PI-2524-081999

Output

MOSFET

Switching

(Enabled)

(Disabled)

Current

Limit

Maximum

Duty Cycle

MULTI-

FUNCTION

Pin Voltage

Note: This figure provides idealized functional characteristics of the MULTI-FUNCTION pin with typical performance values.

Please refer to the parametric table and typical performance characteristics sections of the data sheet for measured data.

MULTI-FUNCTION Pin Current (

µA)

Disabled when supply

output goes out of

regulation

Figure 8. MULTI-FUNCTION Pin Characteristics.

Figure 9. MULTI-FUNCTION Pin Input Simplified Schematic.

240

µA

400

µA

CONTROL Pin

MULTI-FUNCTION Pin

(Positive Current Sense - Under-Voltage,

Over-Voltage, Maximum Duty

Cycle Reduction)

(Negative Current Sense - ON/OFF,

Current Limit Adjustment)

PI-2548-092399

TOPSwitch-FX