UC19431
UC29431
UC39431
UC39431B
Table 1. Resistor divider connection table for shunt applications
REGULATED VOLTAGE
CONNECT R1 TO:
SENSE (pin 7)
open
CONNECT R2 TO:
COLL (pin 1)
COLL (pin 1)
SENSE (pin 7)
SENSE (pin 7)
SENSE (pin 7)
open
CONNECT R3 TO:
2.82V
3.12V
5.1V
SENSE (pin 7)
SENSE (pin 7)
open
COLL (pin 1)
COLL (pin 1)
COLL (pin 1)
COLL (pin 1)
7.8V
GND (pin 8)
SENSE (pin 7)
SENSE (pin 7)
10.42V
12.24V
Note: To obtain the shunt regulated or optocoupler sensed voltage specified in the left column, connect the internal resistors (R1,
R2, R3) as indicated. Refer to the shunt regulator application in Fig.1.
UDG-95091
UDG-95092
Figure 5. Error amp voltage gain and phase vs.
frequency.
Figure 4. Internal 1.3V vs. temperature.
UNITRODE CORPORATION
7 CONTINENTAL BLVD. • MERRIMACK, NH 03054
TEL. (603) 424-2410 • FAX (603) 424-3460
6
TI [ TEXAS INSTRUMENTS ]
