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TL431AQDBZRQ1 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
电压基准芯片
封装:
SOT-23-3
描述:
可调式精密并联稳压器 ADJUSTABLE PRECISION SHUNT REGULATOR
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TL431AQDBZRQ1数据手册
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TL431−Q1
ADJUSTABLE PRECISION SHUNT REGULATOR
SGLS302D − MARCH 2005 − REVISED MARCH 2013
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating conditions, T
A
= 25°C (unless otherwise
noted)
PARAMETER
TEST
TEST CONDITIONS
TL431Q
UNIT
PARAMETER
TEST
CIRCUIT
TEST CONDITIONS
MIN TYP MAX
UNIT
V
ref
Reference voltage 2 V
KA
= V
ref
, I
KA
= 10 mA 2440 2495 2550 mV
V
I(dev)
Deviation of reference voltage
over full temperature range
(see Figure 1)
2
V
KA
= V
ref,
I
KA
= 10 mA,
T
A
= −40°C to 125°C
14 34 mV
DV
ref
Ratio of chan
g
e in reference volta
g
e
3
I 10 mA
ΔV
KA
= 10 V − V
ref
−1.4 −2.7
mV
DV
ref
DV
KA
Ratio of change in reference voltage
to the change in cathode voltage
3 I
KA
= 10 mA
ΔV
KA
= 36 V − 10 V −1 −2
m
V
V
I
ref
Reference current 3 I
KA
= 10 mA, R1 = 10 kΩ, R2 = ∞ 2 4 μA
I
I(dev)
Deviation of reference current
over full temperature range
(see Figure 1)
3
I
KA
= 10 mA, R1 = 10 kΩ, R2 = ∞,
T
A
= −40°C to 125°C
0.8 2.5 μA
I
min
Minimum cathode current for
regulation
2 V
KA
= V
ref
0.4 1 mA
I
off
Off-state cathode current 4 V
KA
= 36 V, V
ref
= 0 0.1 1 μA
|z
KA
| Dynamic impedance (see Figure 1) 2
I
KA
= 1 mA to 100 mA, V
KA
= V
ref
,
f ≤ 1 kHz
0.2 0.5 Ω
electrical characteristics over recommended operating conditions, T
A
= 25°C (unless otherwise
noted)
PARAMETER
TEST
TEST CONDITIONS
TL431AQ
UNIT
PARAMETER
TEST
CIRCUIT
TEST CONDITIONS
MIN TYP MAX
UNIT
V
ref
Reference voltage 2 V
KA
= V
ref
, I
KA
= 10 mA 2470 2495 2520 mV
V
I(dev)
Deviation of reference voltage
over full temperature range
(see Figure 1)
2
V
KA
= V
ref,
I
KA
= 10 mA,
T
A
= −40°C to 125°C
14 34 mV
DV
ref
Ratio of chan
g
e in reference volta
g
e
3
I 10 mA
ΔV
KA
= 10 V − V
ref
−1.4 −2.7
mV
DV
ref
DV
KA
Ratio of change in reference voltage
to the change in cathode voltage
3 I
KA
= 10 mA
ΔV
KA
= 36 V − 10 V −1 −2
m
V
V
I
ref
Reference current 3 I
KA
= 10 mA, R1 = 10 kΩ, R2 = ∞ 2 4 μA
I
I(dev)
Deviation of reference current
over full temperature range
(see Figure 1)
3
I
KA
= 10 mA, R1 = 10 kΩ, R2 = ∞,
T
A
= −40°C to 125°C
0.8 2.5 μA
I
min
Minimum cathode current
for regulation
2 V
KA
= V
ref
0.4 0.7 mA
I
off
Off-state cathode current 4 V
KA
= 36 V, V
ref
= 0 0.1 0.5 μA
|z
KA
| Dynamic impedance (see Figure 1) 2
I
KA
= 1 mA to 100 mA, V
KA
= V
ref
,
f ≤ 1 kHz
0.2 0.5 Ω
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