參數(shù)資料
型號: TL431ILP/1H
廠商: VISHAY SILICONIX
元件分類: 基準電壓源/電流源
英文描述: 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PBCY3
封裝: TO-226, TO-92, 3 PIN
文件頁數(shù): 11/16頁
文件大?。?/td> 319K
代理商: TL431ILP/1H
T2
T
TEMPERATURE
1
VMAX
MIN
VDEV = VMAX
MIN
-V
V
The average temperature coefficient of the reference
input voltage,
αVREF is defined as:
T1
T2
10
6
C)
25
(at
V
T1
T2
10
6
C)
25
(at
V
-
V
C
ppm
V
REF
DEV
REF
MIN
MAX
REF
°
±
=
°
±
=
°
α
––
Where:
T2 – T1 = full temperature change.
The slope can be positive or negative depending on
whether VMAX or VMIN occurs at the lower ambient
temperature.
Example:
VREF = 9.0mV, VREF = 2495mV,
T2 - T1 = 70
°C, slope is positive.
C
50ppm/
αVREF =
C
70
10
6
2495mV
9.0mV
°
=
°
Note 2. The dynamic output impedance, RZ , is
defined as:
When the device is programmed with two external
resistors, R1 and R2, (see Fig. 2), the dynamic output
impedance of the overall circuit, is defined as:
Z
VZ
R =
Z
I
R2
R1
1
≈ Rz
Iz
Vz
z
r
+
=
Note 1. Deviation of reference input voltage,
VREF,
is defined as the maximum variation of the reference
input voltage over the full temperature range.
VREF
IREF
IZ
VZ
IL
IN
R2
R1
VREF
IREF
IZ
VZ
IN
IL
Note: VZ=VREF(1+R1/R2)+IREFxR1
IN
VZ
IZ(OFF)
Fi
T
i
i f
ff
C
Fig. 1 Test Circuit for VZ=VREF
Fig. 2 Test Circuit for VZ>VREF
Fig. 3 Test Circuit for
off-state current
GS431B/TL431A/TL431
Vishay Siliconix
www.vishay.com
Document Number 74806
4
11-Jun-04
相關PDF資料
PDF描述
TL431AIX/11H-E3 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PSSO3
TL431AIU2/48H 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDSO3
TL431AIU1/48H 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDSO3
TL431MFK 1-OUTPUT TWO TERM VOLTAGE REFERENCE, CQCC20
TL431MJG883B 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, CDIP8
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