LM185B [NSC]
MICROCIRCUIT DATA SHEET; 微型电路数据表
| 型号： | LM185B |
| 厂家： | 
National Semiconductor |
| 描述： | MICROCIRCUIT DATA SHEET |
| 文件： | 总11页 (文件大小：208K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MICROCIRCUIT DATA SHEET
Original Creation Date: 08/15/95
Last Update Date: 02/25/03
MNLM185B-X REV 0B0
Last Major Revision Date: 08/15/95
ADJUSTABLE MICROPOWER VOLTAGE REFERENCE
General Description
The LM185B is a micropower 3-terminal adjustable band-gap voltage reference diode.
Operating from 1.24 to 5.3V and over a 10 uA to 20 mA current range, it features
exceptionally low dynamic impedance and good temperature stability. On-chip trimming is
used to provide tight voltage tolerance. Since the LM185B band-gap reference uses only
transistors and resistors, low noise and good long-term stability result.
Careful design of the LM185B has made the device tolerant of capacitive loading, making it
easy to use in almost any reference application. The wide dynamic operating range allows
its use with widely varying supplies with excellent regulation.
The extremely low power drain of the LM185B makes it useful for micropower circuitry. This
voltage reference can be used to make portable meters, regulators or general purpose
analog circuitry with battery life approaching shelf life. Further, the wide operating
current allows it to replace older references with a tighter tolerance part.
Industry Part Number
NS Part Numbers
LM185B
LM185BE/883
LM185BH/883
Prime Die
LM185
Processing
Subgrp Description
Temp (oC)
MIL-STD-883, Method 5004
1
Static tests at
+25
2
Static tests at
+125
-55
3
Static tests at
4
Dynamic tests at
Dynamic tests at
Dynamic tests at
Functional tests at
Functional tests at
Functional tests at
Switching tests at
Switching tests at
Switching tests at
+25
Quality Conformance Inspection
5
+125
-55
6
MIL-STD-883, Method 5005
7
+25
8A
8B
9
+125
-55
+25
10
11
+125
-55
1
MICROCIRCUIT DATA SHEET
MNLM185B-X REV 0B0
Features
- Adjustable from 1.24V to 5.30V.
- Operating current of 10 uA to 20 mA.
- 1% and 2% initial tolerance.
- 1 Ohm dynamic impedance.
- Low temperature coefficient.
2
MICROCIRCUIT DATA SHEET
MNLM185B-X REV 0B0
(Absolute Maximum Ratings)
(Note 1)
Reverse Current
30mA
10mA
Forward Current
Operating Temperature Range
Maximum Junction Temperature
Storage Temperature
-55 C to +125 C
150 C
-55 C to +150 C
300 C
Lead Temperature
(Soldering, 10 seconds)
Thermal Resistance
ThetaJA
E-Pkg (Still Air)
E-Pkg (500LF/Min Air flow)
H-Pkg (Still Air)
H-Pkg (500LF/Min Air flow)
100 C/W
73 C/W
300 C/W
139 C/W
ThetaJC
E-Pkg
H-Pkg
25 C/W
57 C/W
Package Weight
(Typical)
E-Pkg
TBD
TBD
H-Pkg
ESD Tolerance
(Note 2)
500V
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. For guaranteed specifications and test
conditions, see the Electrical Characteristics. The guaranteed specifications apply
only for the test conditions listed. Some performance characteristics may degrade
when the device is not operated under the listed test conditions.
Note 2: Human body model, 1.5k Ohms in series with 100pF
3
MICROCIRCUIT DATA SHEET
MNLM185B-X REV 0B0
Electrical Characteristics
DC PARAMETERS
PIN-
NAME
SUB-
SYMBOL
Vref
PARAMETER
CONDITIONS
NOTES
MIN
MAX UNIT
GROUPS
Reference Voltage Ir = 100uA
1.228 1.252 V
1.215 1.255 V
1.228 1.252 V
1.215 1.255 V
1.228 1.252 V
1.215 1.255 V
1.228 1.252 V
1.215 1.255 V
1.228 1.252 V
1.215 1.255 V
1.288 1.252 V
1.215 1.255 V
1.288 1.252 V
1.215 1.255 V
1.288 1.252 V
1.215 1.255 V
1
2, 3
1
Ir = 9uA
Ir = 10uA
Ir = 1mA
2, 3
1
2, 3
1
Ir = 20mA
2, 3
1
Vr = 5.3V, Ir = 100uA
2, 3
1
Vr = 5.3V, Ir = 45uA
Vr = 5.3V, Ir = 50uA
Vr = 5.3V, Ir = 1.0mA
2, 3
1
2, 3
1
Vr = 5.3V, Ir = 20mA
2, 3
1
Delta
Reference Voltage 9uA < Ir < 1mA
1
mV
Vref/Delta Change with
Ir
Current
10uA < Ir < 1mA
1mA < Ir < 20mA
1.5
10
20
1
mV
mV
mV
mV
mV
mV
mV
mV
mV
2, 3
1
2, 3
1
Vr = 5.3V, 45uA < Ir < 1mA
Vr = 5.3V, 50uA < Ir < 1mA
Vr = 5.3V, 1mA < Ir < 20mA
1.5
10
20
3
2, 3
1
2, 3
1
Delta
Reference Voltage Vr = 5.3V, Ir = 100uA
Vref/Delta Change with
Vo
Output Voltage
6
2, 3
4
MICROCIRCUIT DATA SHEET
MNLM185B-X REV 0B0
Electrical Characteristics
DC PARAMETERS(Continued)
PIN-
NAME
SUB-
SYMBOL
PARAMETER
CONDITIONS
NOTES
MIN
MAX UNIT
20
GROUPS
If
Feedback Current Ir = 9uA
Ir = 10uA
nA
nA
nA
nA
nA
nA
nA
nA
uA
uA
uA
uA
1
25
20
25
20
25
20
25
2, 3
1
Ir = 20mA
2, 3
1
Vr = 5.3V, Ir = 45uA
Vr = 5.3V, Ir = 50uA
Vr = 5.3V, Ir = 20mA
2, 3
1
2, 3
1
Ic
Minimum Operating Vr = Vref
Current
1
1
1
1
9
10
45
50
2, 3
1
Vr = 5.3V
2, 3
Note 1: Functional Test.
5
MICROCIRCUIT DATA SHEET
MNLM185B-X REV 0B0
Graphics and Diagrams
GRAPHICS#
DESCRIPTION
05886HRB2
06175HRB2
E20ARE
METAL CAN (H), TO-39, 3LD, .200 DIA P.C. (B/I CKT)
LCC (E), TYPE C, 20 TERMINAL (B/I CKT)
LCC (E), TYPE C, 20 TERMINAL(P/P DWG)
H02ARE
METAL CAN, TO-46,2LD, .100 DIA P.C. (P/P DWG)
METAL CAN (H), TO-39, 3LD, .200 DIA P.C. (PIN OUT)
LCC (E), 20 LEAD (PINOUT)
P000188A
P000366B
See attached graphics following this page.
6
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N/C
3
N/C
2
N/C
20
GND-
1
N/C
19
N/C
N/C
N/C
N/C
ADJ
N/C
4
5
6
7
8
18
17
16
15
14
N/C
N/C
N/C
N/C
9
10
11
12
13
N/C
N/C
N/C
N/C
VREF+
LM185E
20 - LEAD LCC
CONNECTION DIAGRAM
TOP VIEW
P000366B
MIL/AEROSPACE OPERATIONS
2900 SEMICONDUCTOR DRIVE
SANTA CLARA, CA 95050
MICROCIRCUIT DATA SHEET
MNLM185B-X REV 0B0
Revision History
Rev ECN # Rel Date Originator Changes
0A0
M0003059 02/25/03
Rose Malone
Archive RETS185BX, Rev. 0A. Update MDS: MNLM185B-X,
Rev. 0AL to MNLM185B-X, Rev. 0A0, Fully Released MDS.
Updated Discription, Features and Absolute section.
Verified NSID.
0B0
M0004116 02/25/03
Rose Malone
Update MDS: MCLM185B-X, Rev. 0A0 to MCLM185B-X, Rev.
0B0. Added ESD Level to Absolute Maximum Ratings
Section.
7
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