2.5 Volt Reference

CS1009
2.5 Volt Reference
The CS1009 is a precision trimmed 2.5 V ±5.0 mV shunt regulator
diode. The low dynamic impedance and wide operating current range
enhances its versatility. The tight reference tolerance is achieved by
on–chip trimming which minimizes voltage tolerance and temperature
drift.
A third terminal allows the reference voltage to be adjusted ±5.0%
to calibrate out system errors. In many applications, the CS1009GZ
can be used as a pin–to–pin replacement of the LT1009CZ and the
LM136Z–2.5 with the external trim network eliminated.
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SO–8
D SUFFIX
CASE 751
8
1
Features
• 0.2% Initial Tolerance Max.
• Guaranteed Temperature Stability
• Maximum 0.6 Ω Dynamic Impedance
• Wide Operating Current Range
• Directly Interchangeable with LT1009 and LM136 for Improved
Performance
• No Adjustments Needed for Minimum Temperature Coefficient
• Meets Mil Std 883C ESD Requirements
TO–92
Z SUFFIX
CASE 29
1
2
3
PIN CONNECTIONS AND
MARKING DIAGRAM
NC
1
1009
ALYW
NC
NC
8
GND
NC
NC
VREF
ADJ. PIN
5.0 V–35 V
1009
YWW
3.6 kΩ
Pin 1. ADJ. PIN
2. VREF
3. GND
VREF
ADJ
1
10 kΩ∗
TRIM
A
WL, L
YY, Y
WW, W
GND
= Assembly Location
= Wafer Lot
= Year
= Work Week
*±5.0% Trim Range
Figure 1. Application Diagram
ORDERING INFORMATION
Device
 Semiconductor Components Industries, LLC, 2002
February, 2002 – Rev. 7
1
Package
Shipping
CS1009GD8
SO–8
95 Units/Rail
CS1009GDR8
SO–8
2500 Tape & Reel
CS1009GZ3
TO–92
2000 Units
CS1009GZR3
TO–92
2000 Tape & Reel
Publication Order Number:
CS1009/D
CS1009
VREF
P3
10 pF
15 pF
N14
TRIM
P2
P1
N16
14 kΩ
20 kΩ
20 pF
20 kΩ
10.15 kΩ
63 kΩ
N7
N2
N8
N12 N13
30 kΩ
N1
N4
N3
ADJ
N10
N9
N5
N6
1.14 kΩ
SUBSTRATE
GND
Figure 2. Block Diagram
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2
N11
1.14 kΩ
6.785 kΩ
D1
N15
CS1009
MAXIMUM RATINGS*
Rating
Value
Unit
Reverse Current
20
mA
Forward
10
mA
Operating Temperature Range
–40 to 105
°C
Storage Temperature Range
–65 to +150
°C
260 peak
230 peak
°C
°C
Lead Temperature Soldering:
Wave Solder (through hole styles only) (Note 1)
Reflow: (SMD styles only) (Note 2)
1. 10 second maximum
2. 60 second maximum above 183°C.
*The maximum package power dissipation must be observed.
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified.)
Test Conditions
Characteristic
Min
Typ
Max
Unit
Reverse Breakdown Voltage
IR = 1.0 mA
2.492
2.500
2.508
V
Reverse Breakdown Voltage
0°C ≤ TA ≤ 105°C
2.492
2.500
2.508
V
Reverse Breakdown Voltage
–40°C ≤ TA ≤ °C
2.480
2.500
2.508
V
Reverse Breakdown Voltage
Change with Current
400 µA ≤ IR ≤ 10 mA
–
–
2.6
3.0
10
12
mV
mV
Reverse Dynamic Impedance
IR = 1.0 mA
–
–
0.2
0.4
1.0
1.4
Ω
Ω
Temperature Stability
Avgerage Temperature Coefficient
0°C ≤ TA ≤ 70°C, Note 3
0°C ≤ TA ≤ 70°C, Note 3
–
–
–
–
–
–
mV
ppm/°C
Long Term Stabilty
TA = 25°C ±0.1 C, IR = 1.0 mA
–
20
–
ppm/kHr
† Denotes the specifications which apply over full operating temperature range.
3. Average temperature coefficient is defined as the total voltage change divided by the specified temperature range.
TYPICAL PERFORMANCE CHARACTERISTICS
5
REVERSE VOLTAGE CHANGE (mV)
REVERSE CURRENT (A)
10–1
10–2
10–3
10–4
10–5
0.5
TJ = 25°C
1.0
1.4
1.8
REVERSE VOLTAGE (V)
2.6
2.2
4
3
2
1
0
0
Figure 3. Reverse Current vs. Reverse Voltage
4
8
12
16
REVERSE VOLTAGE (V)
Figure 4. Change in Reverse Voltage vs.
Reverse Current
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3
20
100
TJ = 25°C
DYNAMIC IMPEDANCE (Ω)
FORWARD VOLTAGE (V)
1.2
1.0
0.8
0.6
0.4
0.2
0
0.001
0.01
0.1
1.0
10
1.0
0.1
10
10
100
1.0 k
10 k
FREQUENCY (Hz)
FORWARD CURRENT (mA)
Figure 5. Forward Voltage vs. Forward Current
100 k
Figure 6. Dynamic Impedance vs. Frequency
250
IR = ImA
TJ = 25°C
VOLTAGE SWING (V)
0
200
150
2.5
2.0
1.5
5.0 k
1.0
0.5
0
INPUT
OUTPUT
100
10.0
4.0
0
50
10
100
1.0 k
FREQUENCY (Hz)
10 k
100 k
1
TIME (µs)
0
Figure 7. Zener Noise Voltage vs. Frequency
Figure 8. Response Time
2.520
REFERENCE VOLTAGE (V)
NOISE (nV/√HZ)
( )
CS1009
2.510
2.500
2.490
–40
–30
0
25
35
70
105
Figure 9. Reference Voltage vs. Temperature
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4
20
CS1009
PACKAGE DIMENSIONS
SO–8
D SUFFIX
CASE 751–07
ISSUE V
–X–
A
8
5
0.25 (0.010)
S
B
1
M
Y
M
4
K
–Y–
G
C
N
DIM
A
B
C
D
G
H
J
K
M
N
S
X 45 SEATING
PLANE
–Z–
0.10 (0.004)
H
M
D
0.25 (0.010)
M
Z Y
X
S
J
S
MILLIMETERS
MIN
MAX
4.80
5.00
3.80
4.00
1.35
1.75
0.33
0.51
1.27 BSC
0.10
0.25
0.19
0.25
0.40
1.27
0
8
0.25
0.50
5.80
6.20
INCHES
MIN
MAX
0.189
0.197
0.150
0.157
0.053
0.069
0.013
0.020
0.050 BSC
0.004
0.010
0.007
0.010
0.016
0.050
0
8
0.010
0.020
0.228
0.244
TO–92
Z SUFFIX
CASE 29–11
ISSUE AL
A
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R
IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P AND
BEYOND DIMENSION K MINIMUM.
B
R
P
L
SEATING
PLANE
K
DIM
A
B
C
D
G
H
J
K
L
N
P
R
V
D
X X
G
J
H
V
C
SECTION X–X
1
N
N
INCHES
MIN
MAX
0.175
0.205
0.170
0.210
0.125
0.165
0.016
0.021
0.045
0.055
0.095
0.105
0.015
0.020
0.500
--0.250
--0.080
0.105
--0.100
0.115
--0.135
---
MILLIMETERS
MIN
MAX
4.45
5.20
4.32
5.33
3.18
4.19
0.407
0.533
1.15
1.39
2.42
2.66
0.39
0.50
12.70
--6.35
--2.04
2.66
--2.54
2.93
--3.43
---
PACKAGE THERMAL DATA
SO–8
Parameter
TO–92
Unit
RΘJC
Typical
45
–
°C/W
RΘJA
Typical
165
170
°C/W
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5
CS1009
Notes
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6
CS1009
Notes
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7
CS1009
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be
validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.
SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or
death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold
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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 SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
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8
CS1009/D
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