LM285, LM385B
Micropower Voltage
Reference Diodes
The LM285/LM385 series are micropower two鈭抰erminal bandgap
voltage regulator diodes. Designed to operate over a wide current
range of 10
mA
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鈭抍hip
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鈭?26
plastic case and are available in two voltage versions of 1.235 V and
2.500 V as denoted by the device suffix (see Ordering Information
table). The LM285 is specified over a 鈭?0擄C to +85擄C temperature
range while the LM385 is rated from 0擄C to +70擄C.
The LM385 is also available in a surface mount plastic package in
voltages of 1.235 V and 2.500 V.
Features
http://onsemi.com
MARKING
DIAGRAMS
N.C.
Cathode
Anode
TO鈭?2鈭? (TO鈭?26)
Z SUFFIX
CASE 29
LM285
Z鈭抶xx
ALYWW
8
1
SOIC鈭?
D SUFFIX
CASE 751
xxx
y
z
A
L
Y
W, WW
8
y85鈭抸
ALYW
1
= 1.2 or 2.5
= 2 or 3
= 1 or 2
= Assembly Location
= Wafer Lot
= Year
= Work Week
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Pb鈭扚ree Packages are Available
Operating Current from 10
mA
to 20 mA
1.0%, 1.5%, 2.0% and 3.0% Initial Tolerance Grades
Low Temperature Coefficient
1.0
W
Dynamic Impedance
Surface Mount Package Available
Cathode
360 k
Open
for 1.235 V
10 k
N.C.
N.C.
N.C.
Anode
1
2
3
4
8
7
6
5
Cathode
N.C.
N.C.
N.C.
3
2
1
600 k
8.45 k
(Bottom View)
Standard Application
74.3 k
Open
for 2.5 V
600 k
425 k
1.5 V
Battery
+
鈭?/div>
3.3 k
1.235 V
LM385鈭?.2
600 k
500
W
100 k
Anode
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
Figure 1. Representative Schematic Diagram
漏
Semiconductor Components Industries, LLC, 2004
1
July, 2004 鈭?Rev. 5
Publication Order Number:
LM285/D
LM285D-2.5R2 產品屬性
2,500
集成電路 (IC)
PMIC - 電壓基準
-
分流器
2.5V
±1.5%
標準值 80ppm/°C
-
1
30µA
-
20mA
-40°C ~ 85°C
表面貼裝
8-SOIC（0.154"，3.90mm 寬）
8-SOICN
帶卷 (TR)
LM285D-2.5R2OSTR
LM285D-2.5R2相關型號PDF文件下載
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型號
版本
描述
廠商
下載
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NATIONAL
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