TL1431C Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Lista de partido

TL1431C

Programmable voltage reference

STMicroelectronics 

Electrical characteristics

3

Electrical characteristics

TL1431

Table 3.

Symbol

Tamb = 25°C (unless otherwise specified)

Parameter

TL1431C

TL1431AC

Unit

Min. Typ. Max. Min. Typ. Max.

Vref

ΔVref

Δ-----V----r--e----f

ΔT

Reference input voltage - see Figure 4

VKA = Vref , Ik = 10 mA

Reference input voltage deviation over

temperature range (1) - see Figure 4

VKA = Vref, Ik = 10 mA, Tmin ≤ Tamb ≤ Tmax

Temperature coefficient of reference input

voltage(2)

VKA = Vref, Ik = 10 mA, Tmin ≤Tamb ≤ Tmax

2.490 2.500 2.510 2.493 2.500 2.507 V

3 20

3 20 mV

±13 ±90

±13 ±90 ppm/°C

Δ-Δ---V-V----rk--e--a--f

Iref

Ratio of change in reference input voltage to

change in cathode to anode voltage - see

Figure 5

Ik = 10mA - ΔVKA = 36V to 3V

Reference input current

Ik = 10mA, R1 = 10kΩ, R2 = ∞

Tmin ≤ Tamb ≤ Tmax

-2 -1.1

-2 -1.1

mV/V

1.5 2.5

3

1.5 2.5 µA

3

Reference input current deviation over

ΔIref temperature range

Ik = 10mA, R1 = 10kΩ, R2 =∞, Tmin ≤ Tamb ≤ Tmax

0.2 1.2

0.2 1.2 µA

Imin

Ioff

⏐ ZKA⏐

Minimum cathode current for regulation - Figure 4

VKA = Vref

Off-state cathode current - see Figure 6

Dynamic impedance (3)

VKA = Vref , ΔIk = 1 to100mA, f ≤ 1kHz

0.5 1

180 500

0.2 0.5

0.5 0.6 mA

180 500 nA

0.2 0.5

Ω

1. See Reference input voltage deviation over temperature range in Section 4: Parameter definitions on page 9.

2. See Temperature coefficient of reference input voltage in Section 4: Parameter definitions on page 9.

3. See Dynamic impedance in Section 4: Parameter definitions on page 9.

4/16

Share Link: