LM368YH-5.0 [NSC]
LM368-5.0 and LM368-10 Precision Voltage References; LM368-5.0和LM368-10精密电压基准
| 型号： | LM368YH-5.0 |
| 厂家： | 
National Semiconductor |
| 描述： | LM368-5.0 and LM368-10 Precision Voltage References |
| 文件： | 总8页 (文件大小：138K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
January 1995
LM368-5.0 and LM368-10 Precision Voltage References
General Description
Features
Y
300 mA operating current
The LM368 is a precision, monolithic, temperature-compen-
sated voltage reference. The LM368 makes use of thin-film
technology enhanced by the discrete laser trimming of re-
sistors to achieve excellent Temperature coefficient
Y
Low output impedance
Y
Excellent line regulation (.0001%/V typical)
Y
Single-supply operation
(Tempco) of V
(as low as 5ppm/ C), along with tight
§
OUT
Y
Externally trimmable
initial tolerance, (as low as 0.02%). The trim scheme is such
that individual resistors are cut open rather than being
trimmed (partially cut), to avoid resistor drift caused by elec-
tromigration in the trimmed area. The LM368 also provides
excellent stability vs. changes in input voltage and output
current (both sourcing and sinking). This device is available
in output voltage options of 5.0V and 10.0V and will operate
in both series or shunt mode. Also see the LM368-2.5 data
sheet for a 2.5V output. The devices are short circuit proof
when sourcing current. A trim pin is made available for fine
Y
Low temperature coefficient
Y
Operates in series or shunt mode
Y
10.0V or 5.0V
Y
Excellent initial accuracy (0.02% typical)
trimming of V or for obtaining intermediate values with-
OUT
out greatly affecting the Tempco of the device.
Connection Diagram
Metal Can Package
TL/H/5522–1
Top View
*case connected to Vb
Order Number LM368YH-10,
LM368YH-5.0, LM368H-10, LM368H-5.0
See NS Package Number H08C
Typical Applications
Series Regulator
Shunt Regulator
TL/H/5522–2
TL/H/5522–3
C
1995 National Semiconductor Corporation
TL/H/5522
RRD-B30M115/Printed in U. S. A.
Absolute Maximum Ratings (Note 8)
Input Voltage (Series Mode)
35V
Soldering Information
TO-5 (H) Package, 10 sec.
a
300 C
§
Reverse Current (Shunt Mode)
Power Dissipation
50 mA
See AN-450 ‘‘Surface Mounting Methods and Their Effect
on Product Reliability’’ (Appendix D) for other methods of
soldering surface mount devices.
600 mW
b
a
60 C to 150 C
Storage Temperature Range
Operating Temperature Range
LM368
§
§
a
0 C to 70 C
§
§
Electrical Characteristics (Note 1)
LM368
Tested
Limit
Design
Limit
Units
(Max. unless
noted)
Parameter
Conditions
Typical
(Note 2)
(Note 3)
g
g
0.1
V
OUT
Error
0.02
%
s
s
30V
a
g
g
g
0.0005
Line Regulation
(V
OUT
3V)
V
0.0001
%/V
IN
s
s
s
g
0.001
g
0.008
Load Regulation
(Note 4)
0 mA
b
I
10 mA
0 mA
0.0003
%/mA
%/mA
SOURCE
s
g
10 mA
I
0.003
0.005
250
3
SINK
e
g
g
Thermal Regulation
T
20 mS (Note 5)
0.01
350
5
%/100 mW
mA
Quiescent Current
s
s
a
Change of Quiescent Current vs. V
Temperature Coefficient
(V
OUT
3V)
V
IN
30V
mA/V
IN
s
s
g
g
g
20
of V
OUT
(see graph): LM368Y
LM368
0 C
§
0 C
§
T
T
70 C
§
70 C
§
11
15
ppm/ C
§
ppm/ C
§
A
s
s
g
(Note 6)
30
A
e
Short Circuit Current
Noise: 10.0V: 0.1 - 10Hz
V
0
30
70
100
mA
OUT
30
1100
20
uVp-p
100Hz - 10 kHz
6.2V: 0.1 - 10Hz
100Hz - 10 kHz
5.0V: 0.1 - 10Hz
100Hz - 10 kHz
nV/ Hz
0
uVp-p
700
16
nV/ Hz
0
uVp-p
575
nV/ Hz
0
s
s
V
V
OUT
Adjust Range: 10.000V
5.000V
0V
V
PIN5
4.5-17.0
4.4-7.0
6.0-15.5
4.5-6.0
V min.
V min.
OUT
s
s
C
L
e
a
e
e
0, 0
LOAD
Note 1: Unless otherwise noted, these specifications apply: T
e
25 C, V
15V, I
200 pF, Circuit is operating in Series Mode. Or, circuit is
s
200 pF.
§
A
e
IN
s
a
e
e b
1.0 mA, 0
LOAD
operating in Shunt Mode, V
IN
15V or V
V
, TA
25 C, I
C
L
§
Note 2: Tested Limits are guaranteed and 100% tested in production.
IN
OUT
Note 3: Design Limits are guaranteed (but not 100% production tested) over the indicated temperature and supply voltage ranges. These limits are not used to
calculate outgoing quality levels.
Note 4: The LM368 has a Class B output, and will exhibit transients at the crossover point. This point occurs when the device is asked to sink approximately
120 mA. In some applications it may be advantageous to preload the output to either V or Ground, to avoid this crossover point.
IN
Note 5: Thermal Regulation is defined as the change in the output Voltage at a time T after a step change in power dissipation of 100 mW.
Note 6: Temperature Coefficient of V
OUT
is defined as the worst case delta-V
measured at Specified Temperatures divided by the total span of the Specified
OUT
Temperature Range (See graphs). There is no guarantee that the Specified Temperatures are exactly at the minimum or maximum deviation.
Note 7: In metal can (H), i is 75 C/W and i is 150 C/W.
§
§
Note 8: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
J–C
J–A
the device beyond its Rated Operating Conditions (see Note 1 and Conditions).
2
Typical Performance Characteristics (Note 1)
Quiescent Current vs. Input
Voltage and Temperature
Dropout Voltage vs. Output Current
(Series Mode Sourcing Current)
Output Change vs.
Output Current
equency
Typical Temperature Coefficient Calculations:
LM368-10 (see Curve A)
TL/H/5522–4
e
c
T.C. 7.7 mV/(70 10V)
§
e
c
e
11 10E-6 11ppm/ C
§
Output Noise vs. Frequency
(1) LM368 alone.
(2) with 0.01 mf Mylar, Trim to Gnd.
(3) with 10X in series with 10 mf, V
to Gnd.
OUT
(4) with Both.
TL/H/5522–5
3
Typical Applications
g
Narrow Range Trimmable Regulator ( 1% min.)
Wide Range Trimmable Regulator
TL/H/5522–7
TL/H/5522–8
Improved Noise Performance
Adjustable Zener
TL/H/5522–10
g
g
10V, 5V References
TL/H/5522–9
g
Reference
TL/H/5522–12
e
R
Thin Film Resistor Network,
g
0.05% Matching and 5ppm Tracking
(Beckman 694-3-R-10K-A),
(Caddock T-914-10K-100-05)
or similar.
TL/H/5522–11
4
Typical Applications (Continued)
Multiple Output Voltages
TL/H/5522–14
TL/H/5522–13
e
R
Thin Film Resistor Network
0.05% Matching and 5ppm Tracking
(Beckman 694-3-R-10K-A),
(Caddock T-914-10K-100-05)
or similar.
TL/H/5522–15
Reference with Booster
100 mA Boosted Reference
TL/H/5522–16
TL/H/5522–17
5
Typical Applications (Continued)
Buffered High-Current Reference with Filter
TL/H/5522–18
Simplified Schematic Diagram
TL/H/5522–6
*Reg. U.S. Pat. Off.
6
7
Physical Dimensions inches (millimeters)
Thermal resistance is 45 C/W, junction to case, and 150 C/W, junction to still air.
§
§
Metal Can Package (H)
Order Number LM368YH-10,
LM368YH-5.0, LM368H-10, LM368H-5.0
NS Package Number H08C
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