TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
TO-220
ITO-220
Pin Definition:
1. Ground
2. Input (tab)
3. Output
General Description
The TS7900 series of fixed output negative voltage regulators are intended as complements to the popular TS7800
series device. These negative regulators are available in the same seven-voltage options as the TS7900 devices.
In addition, one extra voltage option commonly employed in MECL systems is also available in the negative
TS7900 Series. 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 sinking they can deliver output currents in excess of 1 ampere.
Features
●
●
●
●
●
●
●
Output Voltage: -5 & -12V
Output current up to 1A
No external components required
Internal thermal overload protection
Internal short-circuit current limiting
Output transistor safe-area compensation
Output voltage offered in 4% tolerance
Standard Application Circuit
Ordering Information
Part No.
TS79xxCZ C0
TS79xxCZ C0G
TS79xxCI C0
Package
TO-220
TO-220
ITO-220
Packing
50pcs / Tube
50pcs / Tube
50pcs / Tube
TS79xxCI C0G
ITO-220
50pcs / Tube
Note:
Where
xx
denote voltage option
05=-5V, 12=-12V
“G” denote for Green Product Halogen Free
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
(Ta = 25
o
C unless otherwise noted)
Parameter
Input Voltage
Power Dissipation
Operating Junction Temperature Range
Junction Temperature
Storage Temperature Range
Thermal Resistance - Junction to Case
Thermal Resistance - Junction to Ambient
Note:
* Follow the derating curve
1/6
Version: F13
TO-220
ITO-220
TO-220
ITO-220
Symbol
V
IN
P
D
T
JOPR
T
J
T
STG
RӨ
JC
RӨ
JA
Limit
-35
Internal Limited
0 ~ +125
+150
-65~+150
3
5
50
60
Unit
V
W
o
o
o
C
C
C
o
C/W
C/W
o
TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
TS7905 Electrical Characteristics
(Vin= -10V, Iout=500mA, 0 C≤Tj≤125 C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)
o
o
Parameter
Output voltage
Symbol
o
Test Condition
Tj=25 C
-7.5V≤Vin≤-20V,
10mA≤Iout≤1A, PD≤15W
-7.5V≤Vin≤-25V
o
Tj=25 C
-8V≤Vin≤-12V
10mA≤Iout≤1A
o
Tj=25 C
250mA≤Iout≤750mA
o
Iout=0, Tj=25 C
-7.5V≤Vin≤-25V
10mA≤Iout≤1A
o
10Hz≤f≤100KHz, Tj=25 C
f=120Hz, -8V≤Vin≤-18V
o
Iout=1A, Tj=25 C
Tj=25 C
Tj=25 C
Iout=10mA, 0 C≤Tj≤125 C
o
o
o
o
Min
-4.80
-4.75
--
--
--
--
--
--
--
--
62
--
--
--
--
Typ
-5
-5
3
1
15
5
4
--
--
40
74
2
750
2.1
-0.1
Max
-5.20
-5.25
100
50
100
50
8
1.3
0.5
--
--
--
--
--
--
Unit
V
Vout
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current
Change
Output Noise Voltage
Ripple Rejection Ratio
Voltage Drop
Output Short Circuit
Current
Peak Output Current
Temperature Coefficient
of Output Voltage
o
REGline
REGload
Iq
∆Iq
Vn
RR
Vdrop
Ios
Io peak
∆Vout/ ∆Tj
mV
mA
µV
dB
V
mA
A
mV/ C
o
TS7912 Electrical Characteristics
(Vin= -19V, Iout=500mA, 0 C≤Tj≤125 C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)
o
Parameter
Output Voltage
Symbol
o
Test Condition
Tj=25 C
-14.5V≤Vin≤-27V,
10mA≤Iout≤1A, PD
≤15W
-14.5V≤Vin≤-30V
o
Tj=25 C
-15V≤Vin≤-19V
10mA≤Iout≤1A
o
Tj=25 C
250mA≤Iout≤750mA
o
Tj=25 C, Iout=0
-14.5V≤Vin≤-30V
10mA≤Iout≤1A
o
10Hz≤f≤100KHz, Tj=25 C
f=120Hz, -15V≤Vin≤-25V
o
Iout=1A, Tj=25 C
Min
-11.53
-11.42
--
--
--
--
--
--
--
--
55
--
Typ
-12
-12
10
3
12
4
4.3
--
--
75
70
2
Max
-12.48
-12.60
240
120
240
120
8
1
0.5
--
--
--
Unit
V
Vout
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current
Change
REGline
REGload
Iq
∆Iq
mV
mA
Output Noise Voltage
Vn
uV
Ripple Rejection Ratio
RR
dB
Voltage Drop
Vdrop
V
mA
Output Short Circuit
o
Ios
Tj=25 C
--
350
--
Current
o
Peak Output Current
Io peak
Tj=25 C
--
2.1
--
A
Temperature Coefficient
o
o
o
∆Vout/ ∆Tj
Iout=10mA, 0 C≤Tj≤125 C
--
-1
--
mV/ C
of Output Voltage
Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as
possible, and thermal effects must be taken into account separately.
This specification applies only for DC power dissipation permitted by absolute maximum ratings.
2/6
Version: F13
TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
Electrical Characteristics Curve
Figure 1. Worse Case Power Dissipation as a
Function of Ambient Temperature
Figure 2. Peak Output Current as a Function of
Input-Output Differential Voltage
Figure 3. Ripple Rejection as a Function of
Frequency
Figure 4. Ripple Rejection as a Function of
Output Voltage
Figure 5. Output Voltage as a Function of
Junction Temperature
Figure 5. Output Voltage as a Function of
Junction Temperature
3/6
Version: F13
TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
TO-220 Mechanical Drawing
Unit: Millimeters
Marking Diagram
XX
Y
M
= Output Voltage
(05=-5V, 12=-12V)
= Year Code
= Month Code
(A=Jan,
B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
= Month Code for Halogen Free Product
(O=Jan,
P=Feb, Q=Mar, R=Apl, S=May, T=Jun, U=Jul, V=Aug, W=Sep,
X=Oct, Y=Nov, Z=Dec)
= Lot Code
= Package Code for TO-220
L
CZ
4/6
Version: F13
TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
ITO-220 Mechanical Drawing
Unit: Millimeters
Marking Diagram
XX
Y
M
= Output Voltage
(05=-5V, 12=-12V)
= Year Code
= Month Code
(A=Jan,
B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
= Month Code for Halogen Free Product
(O=Jan,
P=Feb, Q=Mar, R=Apl, S=May, T=Jun, U=Jul, V=Aug, W=Sep,
X=Oct, Y=Nov, Z=Dec)
= Lot Code
= Package Code for ITO-220
L
CI
5/6
Version: F13
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