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LM385BD-2.5R1 [MOTOROLA]

1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5V, PDSO8, PLASTIC, SO-8;
LM385BD-2.5R1
型号： LM385BD-2.5R1
厂家： MOTOROLA    MOTOROLA
描述：

1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5V, PDSO8, PLASTIC, SO-8

光电二极管 输出元件 电源电路 参考电压源
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中文：  中文翻译
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Order this document by LM285/D  
The LM285/LM385 series are micropower two–terminal bandgap voltage  
regulator diodes. Designed to operate over a wide current range of 10 µA to  
20 mA, these devices feature exceptionally low dynamic impedance, low  
noise and stable operation over time and temperature. Tight voltage  
tolerances are achieved by on–chip trimming. The large dynamic operating  
range enables these devices to be used in applications with widely varying  
supplies with excellent regulation. Extremely low operating current make  
these devices ideal for micropower circuitry like portable instrumentation,  
regulators and other analog circuitry where extended battery life is required.  
The LM285/LM385 series are packaged in a low cost TO–226AA plastic  
case and are available in two voltage versions of 1.235 and 2.500 V as  
denoted by the device suffix (see Ordering Information table). The LM285 is  
specified over a –40°C to +85°C temperature range while the LM385 is rated  
from 0°C to +70°C.  
MICROPOWER VOLTAGE  
REFERENCE DIODES  
SEMICONDUCTOR  
TECHNICAL DATA  
Z SUFFIX  
PLASTIC PACKAGE  
CASE 29  
(Bottom View)  
3
2
1
The LM385 is also available in a surface mount plastic package in  
voltages of 1.235 and 2.500 V.  
N.C.  
Cathode  
Anode  
• Operating Current from 10 µA to 20 mA  
• 1.0%, 1.5%, 2.0% and 3.0% Initial Tolerance Grades  
• Low Temperature Coefficient  
D SUFFIX  
PLASTIC PACKAGE  
CASE 751  
• 1.0 Ω Dynamic Impedance  
• Surface Mount Package Available  
8
N.C.  
1
2
3
4
Cathode  
N.C.  
(SO–8)  
N.C.  
N.C.  
N.C.  
6
5
N.C.  
Anode  
Standard Application  
+
3.3 k  
1.5 V  
Battery  
–
1.235 V  
Representative Schematic Diagram  
LM385–1.2  
Cathode  
10 k  
360 k  
ORDERING INFORMATION  
Reverse  
Open  
for 1.235 V  
Operating  
Break–  
Temperature down  
Device  
Range  
Voltage Tolerance  
600 k  
8.45 k  
LM285D–1.2  
LM285Z–1.2  
1.235 V  
2.500 V  
1.235 V  
1.235 V  
2.500 V  
2.500 V  
±1.0%  
±1.5%  
±1.0%  
±2.0%  
±1.5%  
±3.0%  
T
= –40° to  
+85°C  
A
LM285D–2.5  
LM285Z–2.5  
74.3 k  
600 k  
LM385BD–1.2  
LM385BZ–1.2  
Open  
for 2.5 V  
425 k  
LM385D–1.2  
LM385Z–1.2  
T
= 0° to  
+70°C  
A
LM385BD–2.5  
LM385BZ–2.5  
600 k  
500  
Ω
100 k  
LM385D–2.5  
LM385Z–2.5  
Anode  
Motorola, Inc. 1996  
Rev 2  
LM285 LM385, B  
MAXIMUM RATINGS (T = 25°C, unless otherwise noted)  
A
Rating  
Symbol  
Value  
30  
Unit  
mA  
mA  
°C  
Reverse Current  
Forward Current  
I
R
I
F
10  
Operating Ambient Temperature Range  
T
A
LM285  
LM385  
– 40 to + 85  
0 to +70  
Operating Junction Temperature  
Storage Temperature Range  
T
+ 150  
°C  
°C  
J
T
stg  
– 65 to + 150  
ELECTRICAL CHARACTERISTICS (T = 25°C, unless otherwise noted)  
A
LM285–1.2  
Typ  
LM385–1.2/LM385B–1.2  
Characteristic  
Reverse Breakdown Voltage (I  
Symbol  
Min  
Max  
Min  
Typ  
Max  
Unit  
I
20 mA)  
V
(BR)R  
V
Rmin  
R
LM285–1.2/LM385B–1.2  
1.223  
1.200  
–
1.235  
1.247 1.223  
1.270 1.210  
1.235  
–
1.235  
–
1.247  
1.260  
1.260  
1.273  
T
= T  
to T  
(Note 1)  
–
–
–
A
low  
LM385–1.2  
= T  
high  
–
–
1.205  
1.192  
T
A
to T  
(Note 1)  
–
low  
high  
Minimum Operating Current  
= 25°C  
I
µA  
Rmin  
T
A
–
–
8.0  
–
10  
20  
–
–
8.0  
–
15  
20  
T
= T  
to T (Note 1)  
high  
A
low  
Reverse Breakdown Voltage Change with Current  
1.0 mA, T = +25°C  
∆V  
(BR)R  
mV  
I
I
–
–
–
–
–
–
–
–
1.0  
1.5  
10  
–
–
–
–
–
–
–
–
1.0  
1.5  
20  
Rmin  
= T  
R
low  
I
A
T
to T  
(Note 1)  
high  
20 mA, T = +25°C  
A
1.0 mA  
= T  
R
A
T
A
to T (Note 1)  
20  
25  
low  
high  
Reverse Dynamic Impedance  
= 100 µA, T = +25°C  
Z
0.6  
80  
60  
20  
–
–
–
–
–
–
–
–
0.6  
80  
60  
20  
–
–
–
–
W
ppm/°C  
µV  
I
R
A
Average Temperature Coefficient  
10 µA 20 mA, T = T  
∆V  
/∆T  
–
–
–
(BR)  
I
to T  
(Note 1)  
high  
R
A
low  
Wideband Noise (RMS)  
= 100 µA, 10 Hz  
n
I
R
f
10 kHz  
Long Term Stability  
= 100 µA, T = +25°C ± 0.1°C  
S
ppm/  
kHR  
I
R
A
2
MOTOROLA ANALOG IC DEVICE DATA  
LM285 LM385, B  
ELECTRICAL CHARACTERISTICS (T = 25°C, unless otherwise noted)  
A
LM285–2.5  
Typ  
LM385–2.5/LM385B–2.5  
Characteristic  
Reverse Breakdown Voltage (I  
Symbol  
Min  
Max  
Min  
Typ  
Max  
Unit  
I
20 mA)  
V
(BR)R  
V
Rmin  
R
LM285–2.5/LM385B–2.5  
2.462  
2.415  
–
2.5  
–
–
2.538 2.462  
2.585 2.436  
2.5  
–
2.5  
–
2.538  
2.564  
2.575  
2.600  
T
= T  
to T  
(Note 1)  
A
low  
LM385–2.5  
= T  
high  
–
–
2.425  
2.400  
T
A
to T  
(Note 1)  
–
–
low  
high  
Minimum Operating Current  
= 25°C  
I
µA  
Rmin  
T
A
–
–
13  
–
20  
30  
–
–
13  
–
20  
30  
T
= T  
to T (Note 1)  
high  
A
low  
Reverse Breakdown Voltage Change with Current  
1.0 mA, T = +25°C  
∆V  
(BR)R  
mV  
I
I
–
–
–
–
–
–
–
–
1.0  
1.5  
10  
–
–
–
–
–
–
–
–
2.0  
2.5  
20  
Rmin  
= T  
R
low  
I
A
T
to T  
(Note 1)  
high  
20 mA, T = +25°C  
A
1.0 mA  
R
A
T
A
= T  
to T (Note 1)  
20  
25  
low  
high  
Reverse Dynamic Impedance  
= 100 µA, T = +25°C  
Z
0.6  
–
–
–
–
–
–
–
–
0.6  
–
–
–
–
W
ppm/°C  
µV  
I
R
A
Average Temperature Coefficient  
20 µA 20 mA, T = T  
Wideband Noise (RMS)  
= 100 µA, 10 Hz 10 kHz  
∆V  
/∆T  
–
–
–
80  
80  
(BR)  
I
to T  
(Note 1)  
high  
R
A
low  
n
120  
20  
120  
20  
I
R
f
Long Term Stability  
= 100 µA, T = +25°C ± 0.1°C  
S
ppm/  
kHR  
I
R
A
NOTES: 1. T  
low  
= – 40°C for LM285–1.2, LM285–2.5  
= 0°C for LM385–1.2, LM385B–1.2, LM385–2.5, LM385B–2.5  
T
= +85°C for LM285–1.2, LM285–2.5  
= +70°C for LM385–1.2, LM385B–1.2, LM385–2.5, LM385B–2.5  
high  
T
high  
3
MOTOROLA ANALOG IC DEVICE DATA  
LM285 LM385, B  
TYPICAL PERFORMANCE CURVES FOR LM285–1.2/385–1.2/385B–1.2  
Figure 1. Reverse Characteristics  
Figure 2. Reverse Characteristics  
100  
10  
10  
8.0  
6.0  
4.0  
T
= +85°C  
A
+25°C  
T
= +85  
°
C
A
1.0  
0.1  
–40°C  
2.0  
0
+25  
°C  
–40°C  
–2.0  
0
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
0.01  
0.1  
1.0  
I , REVERSE CURRENT (mA)  
R
10  
100  
V(  
, REVERSE VOLTAGE (V)  
BR)  
Figure 3. Forward Characteristics  
Figure 4. Temperature Drift  
1.250  
1.240  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
I
= 100 µA  
R
T
= –40  
°
C
A
1.230  
1.220  
1.210  
+25°C  
+85°  
C
–50  
–25  
0
25  
50  
75  
C)  
100  
125  
0.01  
0.1  
1.0  
10  
100  
T
A
, AMBIENT TEMPERATURE (  
°
I
, FORWARD CURRENT (mA)  
F
Figure 5. Noise Voltage  
Figure 6. Response Time  
875  
750  
625  
500  
375  
250  
125  
0
1.50  
1.25  
Input  
100 k  
1.00  
0.75  
Output  
0.50  
0.25  
0
DUT  
10  
5.0  
0
10  
100  
1.0 K  
10 K  
100 k  
0
0.1  
0.2  
0.3  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
f, FREQUENCY (Hz)  
t, TIME (ms)  
4
MOTOROLA ANALOG IC DEVICE DATA  
LM285 LM385, B  
TYPICAL PERFORMANCE CURVES FOR LM285–2.5/385–2.5/385B–2.5  
Figure 7. Reverse Characteristics  
Figure 8. Reverse Characteristics  
100  
10  
10  
8.0  
6.0  
4.0  
T
= +85°C  
A
T
= +85°C  
A
+25°C  
–40°C  
+25°C  
1.0  
0.1  
2.0  
0
–40  
°C  
–2.0  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
0.01  
0.1  
1.0  
I , REVERSE CURRENT (mA)  
R
10  
100  
V(  
, REVERSE VOLTAGE (V)  
BR)  
Figure 9. Forward Characteristics  
Figure 10. Temperature Drift  
2.520  
2.510  
2.500  
2.490  
2.480  
2.470  
2.460  
2.450  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
I
= 100 µA  
R
T
= –40°C  
A
+85  
°C  
+25°C  
–50  
–25  
0
25  
50  
75  
C)  
100  
125  
0.01  
0.1  
1.0  
10  
100  
T
A
, AMBIENT TEMPERATURE (  
°
I
, FORWARD CURRENT (mA)  
F
Figure 11. Noise Voltage  
Figure 12. Response Time  
3.00  
2.50  
Input  
1500  
100 k  
2.00  
1.50  
1250  
1000  
750  
Output  
1.00  
0.50  
0
DUT  
500  
250  
0
10  
5.0  
0
10  
100  
1.0 K  
10 K  
100 k  
0
0.1  
0.2  
0.3  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
f, FREQUENCY (Hz)  
t, TIME (ms)  
5
MOTOROLA ANALOG IC DEVICE DATA  
LM285 LM385, B  
OUTLINE DIMENSIONS  
Z SUFFIX  
PLASTIC PACKAGE  
CASE 29–04  
ISSUE AD  
NOTES:  
A
1. DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
B
2. CONTROLLING DIMENSION: INCH.  
3. CONTOUR OF PACKAGE BEYOND DIMENSION R  
IS UNCONTROLLED.  
R
4. DIMENSION F APPLIES BETWEEN P AND L.  
DIMENSION D AND J APPLY BETWEEN L AND K  
MINIMUM. LEAD DIMENSION IS UNCONTROLLED  
IN P AND BEYOND DIMENSION K MINIMUM.  
P
L
F
SEATING  
PLANE  
K
INCHES  
MIN  
MILLIMETERS  
DIM  
A
B
C
D
F
G
H
J
K
L
N
P
MAX  
0.205  
0.210  
0.165  
0.022  
0.019  
0.055  
0.105  
0.020  
–––  
MIN  
4.45  
4.32  
3.18  
0.41  
0.41  
1.15  
2.42  
0.39  
12.70  
6.35  
2.04  
–––  
MAX  
5.20  
5.33  
4.19  
0.55  
0.48  
1.39  
2.66  
0.50  
–––  
0.175  
0.170  
0.125  
0.016  
0.016  
0.045  
0.095  
0.015  
0.500  
0.250  
0.080  
–––  
D
X X  
G
J
H
V
C
–––  
–––  
SECTION X–X  
0.105  
0.100  
–––  
2.66  
2.54  
–––  
1
N
R
V
0.115  
0.135  
2.93  
3.43  
N
–––  
–––  
D SUFFIX  
PLASTIC PACKAGE  
CASE 751–05  
(SO–8)  
NOTES:  
–A–  
ISSUE N  
1. DIMENSIONING AND TOLERANCING PER  
ANSI Y14.5M, 1982.  
2. CONTROLLING DIMENSION: MILLIMETER.  
3. DIMENSIONS A AND B DO NOT INCLUDE  
MOLD PROTRUSION.  
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)  
PER SIDE.  
5. DIMENSION D DOES NOT INCLUDE DAMBAR  
PROTRUSION. ALLOWABLE DAMBAR  
PROTRUSION SHALL BE 0.127 (0.005) TOTAL  
IN EXCESS OF THE D DIMENSION AT  
MAXIMUM MATERIAL CONDITION.  
8
1
5
4
4X P  
–B–  
M
M
0.25 (0.010)  
B
G
MILLIMETERS  
INCHES  
DIM  
A
B
C
D
F
G
J
K
M
P
MIN  
4.80  
3.80  
1.35  
0.35  
0.40  
MAX  
5.00  
4.00  
1.75  
0.49  
1.25  
MIN  
MAX  
0.196  
0.157  
0.068  
0.019  
0.049  
0.189  
0.150  
0.054  
0.014  
0.016  
R X 45  
F
C
SEATING  
PLANE  
–T–  
1.27 BSC  
0.050 BSC  
K
J
M
0.18  
0.10  
0
0.25  
0.25  
7
0.007  
0.004  
0
0.009  
0.009  
7
8X D  
0.25 (0.010)  
M
S
S
T
B
A
5.80  
0.25  
6.20  
0.50  
0.229  
0.010  
0.244  
0.019  
R
6
MOTOROLA ANALOG IC DEVICE DATA  
LM285 LM385, B  
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding  
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and  
specificallydisclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola  
datasheetsand/orspecificationscananddovaryindifferentapplicationsandactualperformancemayvaryovertime. Alloperatingparameters,including“Typicals”  
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of  
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other  
applicationsintended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury  
ordeathmayoccur. ShouldBuyerpurchaseoruseMotorolaproductsforanysuchunintendedorunauthorizedapplication,BuyershallindemnifyandholdMotorola  
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees  
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that  
Motorola was negligent regarding the design or manufacture of the part. Motorola and  
Opportunity/Affirmative Action Employer.  
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal  
How to reach us:  
USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;  
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454  
JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,  
3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315  
MFAX: RMFAX0@email.sps.mot.com – TOUCHTONE 602–244–6609  
INTERNET: http://Design–NET.com  
ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,  
51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298  
LM285/D  
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