参数资料
型号: TL431AIDG
厂商: ON Semiconductor
文件页数: 3/18页
文件大小: 0K
描述: IC VREF SHUNT PREC ADJ 8-SOICN
标准包装: 98
基准类型: 旁路,可调节,精度
输出电压: 2.495 V ~ 36 V
容差: ±1%
温度系数: 标准值 50ppm/°C
输入电压: 2.495 V ~ 36 V
通道数: 1
电流 - 阴极: 1mA
电流 - 输出: 100mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 管件
产品目录页面: 1129 (CN2011-ZH PDF)
其它名称: TL431AIDG-ND
TL431AIDGOS
TL431, A, B Series, NCV431A, B
ELECTRICAL CHARACTERISTICS (T A = 25 ° C, unless otherwise noted.)
TL431I
TL431C
D V
D V
Characteristic
Reference Input Voltage (Figure 1)
V KA = V ref , I K = 10 mA
T A = 25 ° C
T A = T low to T high (Note 1)
Reference Input Voltage Deviation Over
Temperature Range (Figure 1, Notes 1, 2)
V KA = V ref, I K = 10 mA
Ratio of Change in Reference Input Voltage to Change
in Cathode to Anode Voltage
I K = 10 mA (Figure 2),
D V KA = 10 V to V ref
D V KA = 36 V to 10 V
Reference Input Current (Figure 2)
I K = 10 mA, R1 = 10 k, R2 = ∞
T A = 25 ° C
T A = T low to T high (Note 1)
Reference Input Current Deviation Over
Temperature Range (Figure 2, Note 1, 4)
I K = 10 mA, R1 = 10 k, R2 = ∞
Minimum Cathode Current For Regulation
V KA = V ref (Figure 1)
Off ? State Cathode Current (Figure 3)
V KA = 36 V, V ref = 0 V
Dynamic Impedance (Figure 1, Note 3)
V KA = V ref , D I K = 1.0 mA to 100 mA
f ≤ 1.0 kHz
Symbol
V ref
D V ref
ref
KA
I ref
D I ref
I min
I off
|Z KA |
Min
2.44
2.41
?
?
?
?
?
?
?
?
?
Typ
2.495
?
7.0
? 1.4
? 1.0
1.8
?
0.8
0.5
20
0.22
Max
2.55
2.58
30
? 2.7
? 2.0
4.0
6.5
2.5
1.0
1000
0.5
Min
2.44
2.423
?
?
?
?
?
?
?
?
?
Typ
2.495
?
3.0
? 1.4
? 1.0
1.8
?
0.4
0.5
20
0.22
Max
2.55
2.567
17
? 2.7
? 2.0
4.0
5.2
1.2
1.0
1000
0.5
Unit
V
mV
mV/V
m A
m A
mA
nA
W
1. T low = ? 40 ° C for TL431AIP TL431AILP, TL431IP, TL431ILP, TL431BID, TL431BIP, TL431BILP, TL431AIDM, TL431IDM, TL431BIDM;
= 0 ° C for TL431ACP, TL431ACLP, TL431CP, TL431CLP, TL431CD, TL431ACD, TL431BCD, TL431BCP, TL431BCLP, TL431CDM,
TL431ACDM, TL431BCDM
T high = +85 ° C for TL431AIP, TL431AILP, TL431IP, TL431ILP, TL431BID, TL431BIP, TL431BILP, TL431IDM, TL431AIDM, TL431BIDM
= +70 ° C for TL431ACP, TL431ACLP, TL431CP, TL431ACD, TL431BCD, TL431BCP, TL431BCLP, TL431CDM, TL431ACDM,
TL431BCDM
2. The deviation parameter D V ref is defined as the difference between the maximum and minimum values obtained over the full operating
ambient temperature range that applies.
V ref max
V ref min
D V ref = V ref max
-V ref min
D T A = T 2 - T 1
T1
Ambient Temperature
T2
D V
@ 25 _ C
D T
D V
D T (V
The average temperature coefficient of the reference input voltage, a V ref is defined as:
V
ppm
ref _ C
+
V
ref
ref
A
X 106
+
A ref
ref
x 10 6
@ 25 _ C)
a V ref can be positive or negative depending on whether V ref Min or V ref Max occurs at the lower ambient temperature. (Refer to Figure 6.)
Example : D V
ref
@ 25 _ C + 2.495 V, D T + 70 _ C
V
ref
+ 8.0 mV and slope is positive,
A
a V
ref
+
0.008 x 106
70 (2.495)
+ 45.8 ppm _ C
D V
3. The dynamic impedance Z KA is defined as: |Z KA| +
. When the device is programmed with two external resistors, R1 and R2,
D I
KA
K
R2
(refer to Figure 2) the total dynamic impedance of the circuit is defined as: |Z KA | [ |Z KA| 1 ) R1
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