
TSM121
3/12
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
Symbol
DC Supply Voltage
Value
Unit
Vcc
DC Supply voltage pin 2
1)
Output current Power Good and Fault
Collector Output Current
Operating Free Air Temperature Range
Power dissipation
Storage temperature
Adjustable Under voltage blanking delay at Power Up
Extra Protection
Power Good input
Power Good output
Adjustable Power Good delay
Remote control
Adjustable Remote delay
Adjustable Inrush Current Blank (surge)
Positive Input of the error amplifier
Negative Input of the error amplifier
Feedback input of the error amplifier
Frequency setting capacitor input
1. All voltages values , except differential voltage , are with respect to network ground terminal .
25
V
Iout
Co
Top
Pd
Tstg
Tuv
EP
PI
PG
Tpg
REM
Trem
Tsur
IN+
IN-
FB
OSC
30
50
mA
mA
°C
W
°C
V
V
V
V
V
V
V
V
V
V
V
V
-55 to 125
1
-55 to 125
5
5
5
5
5
5
5
5
5
5
5
5
Symbol
Parameter
Value
Unit
Vcc
DC Supply Voltage
1)
Collector Output Current
Oscillator Frequency
Operating Free Air Temperature Range
1. The TSM121 starts working properly before 14V, but the 12V line over current protection can be reliable only when Vcc has reached a
sufficient level: t(he DC supply voltage must be higher than the voltage applied on the Is12 input (12V line protection) plus 2V. For exam-
ple, if 13.2V is present on the IS12 input, the minimum required value on Vcc is 15.2V.
14 to 24
V
Co
Freq
Toper
up to 30
<200
0 to 85
mA
kHz
°C