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TS7900A series
1-1
2003/12 rev. A
TS7900A series
3-Terminal Fixed Negative Output Voltage Regulator
1. Ground
2. Input
3. Output
(Heatsink surface
connected to Pin 2)
Voltage Range - 5V to - 24V
Output Current up to 1.5A
General Description
The TS7900A series of fixed output negative voltage regulators are intended as complements to the popular TS7800A
series device. These negative regulators are available in the same seven-voltage options as the TS7800A devices.
Available in fixed output voltage options from -5.0 to -24 volts, these regulators employ current limiting, thermal shutdown,
and safe-area compensation--making them remarkably rugged under most operating conditions. With adequate heat sink
they can deliver output currents in excess of 1.5 ampere.
This series is offered in 3-pin TO-220, TO-263 package.
Features
Output current up to 1.5A
No external components required
Internal thermal overload protection
Internal short-circuit current limiting
Output transistor safe-area compensation
Output voltage offered in +/-2% tolerance
Ordering Information
Note: Where xx denotes voltage option.
Part No.
Operating Temp.
(Ambient)
-20 ~ +85
o
C
Package
TS79xxACZ
TO-220
TS79xxACM
TO-263
Standard Application
A common ground is required between the input and the
output voltages. The input voltage must remain typically 2.0V
above the output voltage even during the low point on the
Input ripple voltage.
XX = these two digits of the type number indicate voltage.
* = Cin is required if regulator is located an appreciable
distance from power supply filter.
** = Co is not needed for stability; however, it does improve
transient response.
Absolute Maximum Rating
Input Voltage
Vin *
- 35
V
Input Voltage
Vin **
- 40
V
Power Dissipation TO-220
TO-220
TO-263
Without heatsink
Pt ***
Without heatsink
2
15
1.5
W
Operating Junction Temperature Range
T
J
0 ~ +150
o
C
Storage Temperature Range
Note : * TS7905A to TS7918A
** TS7924A
*** Follow the derating curve
T
STG
-65 ~ +150
o
C
Pin assignment:
TO-263