UPC1944J datasheet(3/7 Pages) NEC

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Data Sheet G10239EJ3V0DS00

µµµµ PC1943,1944

RECOMMENDED OPERATING CONDITIONS

Parameter

Symbol

MIN.

TYP.

MAX.

Unit

Cathode Voltage

VKA

VREF

Cathode Current

110

Total Power Dissipation

µ PC1943T

45 (240Note)mW

µ PC1944T

45 (240Note)mW

µ PC1944J

µ PC1944GR

Operating Ambient Temperature

−30

+85

°C

Operating Junction Temperature

−30

+100

°C

Note with 16 cm2

× 0.7 mm ceramic substrate.

Caution

The recommended operating range may be exceeded without causing any problems provided that the

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.

ELECTRICAL CHARACTERISTICS (IK = 10 mA, TA = +25

°°°°C, unless otherwise specified.)

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

Reference Voltage

VREF

VKA = VREF

1.23

1.26

1.29

Reference Voltage Deviation

Over Temperature

∆ VREF

VKA = VREF, 0

°C ≤ TA ≤ 70 °C

± 5

± 30

Reference Voltage Deviation

∆ VREF/∆ VKA | VREF | ≤ VKA ≤ 5V

2.7

mV/V

Over Cathode Voltage

5 V

≤ VKA ≤ 24V

2.0

mV/V

Reference Input Current

IREF

VKA = VREF, R1 = 10 k

Ω, R2 = ∞

2.0

4.0

µ A

Reference Input Current Deviation

Over Temperature

∆ IREF

VKA = VREF, 0

°C ≤ TA ≤ 70 °C,

R1 = 10 k

Ω, R2 = ∞

0.3

1.2

µ A

Minimum Cathode Current

IKmin

VKA = VREF,

∆ VREF = 2 %

0.16

1.0

Off-state Cathode Current

IKoff

VKA = 24 V, VREF = 0 V

0.01

1.0

µ A

Dynamic Impedance

| ZKA |

VKA = VREF, f

≤ 1 kHz,

1 mA

≤ IK ≤ 30 mA

0.12

0.5

Ω

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