UPC1944 NEC [NEC], UPC1944 Datasheet - Page 3

• Manufacturer Part Number: UPC1944
• Description: ADJUSTABLE PRECISION SHUNT REGULATORS
• Manufacturer: NEC [NEC]

RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS (I
Note with 16 cm
Caution The recommended operating range may be exceeded without causing any problems provided that the
Cathode Voltage
Cathode Current
Total Power Dissipation
Operating Ambient Temperature
Operating Junction Temperature
Reference Voltage
Reference Voltage Deviation
Over Temperature
Reference Voltage Deviation
Over Cathode Voltage
Reference Input Current
Reference Input Current Deviation
Over Temperature
Minimum Cathode Current
Off-state Cathode Current
Dynamic Impedance
absolute maximum ratings are not exceeded. However, if the device is operated in a way that exceeds
the recommended operating conditions, the margin between the actual conditions of use and the
absolute maximum ratings is small, and therefore thorough evaluation is necessary. The
recommended operating conditions do not imply that the device can be used with all values at their
maximum values.
Parameter
Parameter
2
0.7 mm ceramic substrate.
PC1943T
PC1944T
PC1944J
PC1944GR
V
I
I
I
| Z
REF
Kmin
Koff
REF
V
V
I
Symbol
REF
KA
REF
REF
|
/ V
K
V
I
P
T
T
= 10 mA, T
KA
Symbol
K
A
J
KA
T
Data Sheet G10239EJ3V0DS00
V
V
| V
5 V
V
V
R
V
V
V
1 mA
KA
KA
KA
KA
KA
KA
KA
1
REF
= 10 k , R2 =
= V
= V
= V
= V
= V
= 24 V, V
= V
V
|
KA
REF
REF
REF
REF
REF
REF
I
K
A
V
, 0 C
, R
, 0 C
,
, f
KA
MIN.
V
= +25 C, unless otherwise specified.)
Conditions
24V
30 mA
REF
1
30
30
1
V
REF
= 10 k , R2 =
1 kHz,
REF
5V
= 0 V
= 2 %
T
T
A
A
70 C
70 C,
TYP.
10
MIN.
1.23
45 (240
45 (240
MAX.
+100
+85
24
30
83
57
Note
Note
TYP.
1.26
0.16
0.01
0.12
)
)
2.0
0.3
5
PC1943,1944
Unit
mW
mW
mW
mW
mA
V
C
C
MAX.
1.29
2.7
2.0
4.0
1.2
1.0
1.0
0.5
30
mV/V
mV/V
Unit
mV
mA
V
A
A
A
3