Datasheet

STATUS
DRIVERB
DRIVERA
700 Am
4K
V
IN
MODULATOR
4K
700 Am
V
IN
CT
EXTCLK
RT
OSCILLATOR
3K
5K
10K
BIAS
BIAS
BIAS
X2
X1
1K
150mV
150mV
STATUS
AMPLIFIERS
ERROR
AMPLIFIER
V
IN
V
IN
2K
V
IN
150 Am
1.25V
2.5K
500
1.5-VOLTREFERENCE
GND
VREF
COMP
INV
NI
UC2901-EP
SLUS709A –DECEMBER 2006–REVISED MARCH 2010 www.ti.com
UC2901 SIMPLIFIED SCHEMATIC
Absolute Maximum Ratings
(1)
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
V
IN
Input supply voltage 40 V
Reference output current –10 mA
Driver output current –35 mA
Status indicator voltage 40 V
Status indicator current 20 mA
External clock input 40 V
Error amplifier inputs –0.5 35 V
Power dissipation at T
A
= 25°C 1000 mW
Operating junction temperature range –55 150 °C
Storage temperature range
(2)
–65 150 °C
Lead temperature (soldering, 10 seconds) 300 °C
(1) Voltages are referenced to ground, pin 7. Currents are positive into, and negative out of the specified terminal.
(2) Long-term high-temperature storage and/or extended use at maximum recommended operating conditions may result in a reduction of
overall device life. See http://www.ti.com/ep_quality for additional information on enhanced plastic packaging.
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