RHF1009AK1 datasheet(4/19 Pages) STMICROELECTRONICS

4 / 19 page

Electrical characteristics

RHF1009A

4/19

DocID025148 Rev 3

Electrical characteristics

Parameters tested before radiation are shown in Table 4.

Table 4. Anode is connected to Gnd (0 V), VK is in reference to anode voltage. CK (between anode

and cathode) = 100 nF, R1 = 0 and R2 not connected unless otherwise specified

Symbol

Parameter

Test conditions

Temp.

Min.

Typ.

Max.

Unit

DC performance

VRef

Reference input voltage

IK = 100 µA

VK = VRef

+25 °C

2.5

ΔVRef

Reference input voltage

tolerance

IK = 100 µA

VK = VRef

+25 °C

-5

IKmin

Minimum operating current

[VK ≥ VK (IK = 100 µA,

Ta = 25°C) - 100 µV]

VK = VRef

-55 °C

+25 °C

+125 °C

μA

IKoff

Off state cathode current

VRef = VA

VKA = 2.5V

-55 °C

+25 °C

+125 °C

μA

IRef

Reference input current

IK = 100 µA to 10 mA

VK = VRef on R1 =

10 k

-55 °C

+25 °C

+125 °C

μA

ΔVRef/ΔT

Average temperature coefficient

IK = 100 µA

VK = VRef

-55 °C

+125 °C

ppm/

°C

IK = 10 mA

VK = VRef

-55 °C

+125 °C

ΔVRef/ΔVKA

Reference voltage versus

cathode voltage variation

IK = 100 µA

VKA = 2.5 V to 5.5 V

R1 = 10 kΩ, R2Variable

-55 °C

+125 °C

1.5

2.5

mV/V

IK = 10 mA

VKA = 2.5 V to 5.5 V

R1 = 10 kΩ, R2Variable

-55 °C

+125 °C

1.5

2.5

ΔVRef/ΔIK

Reference voltage versus

cathode current variation

IKmin ≤ IK ≤ 1 mA

VK = VRef

-55 °C

+25 °C

+125 °C

0.075

0.08

0.15

0.16

0.3

1 mA

≤ IK ≤ 12 mA

VK = VRef

-55 °C

+25 °C

+125 °C

0.65

0.7

1.3

1.4

RKA

Reverse static impedance

ΔIK = IKmin to 10 mA

VK = VRef

-55 °C

+25 °C

+125 °C

0.05

0.06

0.1

0.12

0.2

ZKA

Reverse dynamic impedance

IK = 1 mA to 1.1 mA

VK = VRef, F ≤ 1 kHz

No capacitive load

-55 °C

+25 °C

+125 °C

0.4

0.5

VRefmax

VRefmin

–

180

°CVRef 25°C

()

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