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参数资料
| 型号： | LM234H/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, MBCY3 |
| 封装： | METAL CAN, TO-46, 3 PIN |
| 文件页数： | 7/14页 |
| 文件大小： | 759K |
| 代理商： | LM234H/NOPB |
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
+ to V Forward Voltage
LM134/LM234/LM334
40V
LM234-3/LM234-6
30V
V
+ to V Reverse Voltage
20V
R Pin to V
Voltage
5V
Set Current
10 mA
Power Dissipation
400 mW
ESD Susceptibility (Note 6)
2000V
Operating Temperature Range (Note
LM134
55C to +125C
LM234/LM234-3/LM234-6
25C to +100C
LM334
0C to +70C
Soldering Information
TO-92 Package (10 sec.)
260C
TO-46 Package (10 sec.)
300C
SO Package
Vapor Phase (60 sec.)
215C
Infrared (15 sec.)
220C
See AN-450 “Surface Mounting Methods and Their Effect on
Product Reliability” (Appendix D) for other methods of sol-
dering surface mount devices.
Electrical Characteristics (Note 2)
Parameter
Conditions
LM134/LM234
LM334
Units
Min
Typ
Max
Min
Typ
Max
Set Current Error, V
+=2.5V,
10A
≤ I
SET
≤ 1mA
3
6
%
1mA < I
SET
≤ 5mA
5
8
%
2A
≤ I
SET < 10A
8
12
%
Ratio of Set Current to
100A
≤ I
SET
≤ 1mA
14
18
23
14
18
26
Bias Current
1mA
≤ I
SET
≤ 5mA
14
2A
≤I
SET
≤100 A
18
23
18
26
Minimum Operating Voltage
2A
≤ I
SET
≤ 100A
0.8
V
100A < I
SET
≤ 1mA
0.9
V
1mA < I
SET
≤ 5mA
1.0
V
Average Change in Set Current
2A
≤ I
SET
≤ 1mA
with Input Voltage
1.5
≤ V+ ≤ 5V
0.02
0.05
0.02
0.1
%/V
5V
≤ V+ ≤ 40V
0.01
0.03
0.01
0.05
%/V
1mA < I
SET
≤ 5mA
1.5V
≤ V ≤ 5V
0.03
%/V
5V
≤ V ≤ 40V
0.02
%/V
Temperature Dependence of
25A
≤ I
SET
≤ 1mA
0.96T
T
1.04T
0.96T
T
1.04T
Set Current (Note 4)
Effective Shunt Capacitance
15
pF
Note 1: .“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Note 2: Unless otherwise specified, tests are performed at Tj = 25C with pulse testing so that junction temperature does not change during test
Note 3: Set current is the current flowing into the V+ pin. For the Basic 2-Terminal Current Source circuit shown on the first page of this data sheet. ISET is
determined by the following formula: ISET = 67.7 mV/RSET (@ 25C). Set current error is expressed as a percent deviation from this amount. ISET increases at
0.336%/C @ Tj = 25C (227 V/C).
LM134/LM234/LM334
www.national.com
2
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| LM234Z | 功能描述:基准电压& 基准电流 3-Term Adjust Currnt RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| LM234Z | 制造商:STMicroelectronics 功能描述:IC - Adjustable Current Source |
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