TOP264-271
CONTROL (C)
200 µA
EXTERNAL CURRENT LIMIT (X)
VOLTAGE MONITOR (V)
(Negative Current Sense - ON/OFF,
Current Limit Adjustment, OVP Latch Reset)
VBG + VT
VREF
(Voltage Sense, ON/OFF)
1V
(Positive Current Sense - Undervoltage,
Overvoltage, ON/OFF, Maximum Duty
Cycle Reduction, Output Over-
voltage Protection)
400 µA
Figure 10. VOLTAGE MONITOR (V) and EXTERNAL CURRENT LIMIT (X) Pin Input Simplified Schematic.
PI-5567-030910
www.powerint.com
11
Rev. E 10/11