TS7900A series
3-Terminal Fixed Negative Output Voltage Regulator
TO-263
Pin assignment:
1. Ground
2. Input
Voltage Range - 5V to - 24V
Output Current up to 1.5A
3. Output
(Heatsink surface
connected to Pin 2)
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
Standard Application
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
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
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.
Part No.
Operating Temp. Package
(Ambient)
-20 ~ +85oC
TO-220
TO-263
XX = these two digits of the type number indicate voltage.
* = Cin is required if regulator is located an appreciable
distance from power supply filter.
TS79xxACZ
TS79xxACM
** = Co is not needed for stability; however, it does improve
transient response.
Note: Where xx denotes voltage option.
Absolute Maximum Rating
Input Voltage
Input Voltage
Vin *
Vin **
- 35
- 40
V
V
Power Dissipation
TO-220
Without heatsink
Pt ***
2
TO-220
TO-263
15
W
Without heatsink
TJ
1.5
Operating Junction Temperature Range
Storage Temperature Range
0 ~ +150
-65 ~ +150
oC
oC
TSTG
Note : * TS7905A to TS7918A
** TS7924A
*** Follow the derating curve
TS7900A series
1-1
2003/12 rev. A