TS4041
1.225V MICROPOWER SHUNT VOLTAGE REFERENCE
s
1.225V TYP OUTPUT VOLTAGE
s
ULTRA LOW OPERATING CURRENT : 65µA
s
maximum at 25°C
HIGH PRECISION @ 25°C
+/- 2%
+/- 1%
+/- 0.5%
HIGH STABILITY WHEN USED WITH
CAPACITIVE LOADS
INDUSTRIAL TEMPERATURE RANGE:
-40 to +85°C
150ppm/°C MAXIMUM TEMPERATURE
COEFFICIENT
s
s
s
Z
TO92
(Plastic Package)
DESCRIPTION
The TS4041 is a low power shunt voltage
reference providing a stable 1.225V output
voltage over the industrial temperature range (-40
to +85°C). Availabe in SOT23-3 surface mount
package, it can be designed in applications where
space saving is a critical issue.
The low operating current is a key advantage for
power restricted designs. In addition, the TS4041
is very stable and can be used in a broad range of
application conditions.
APPLICATION
L
SOT23-3L
(Plastic Micropackage)
PIN CONNECTIONS
(top view)
s
s
s
s
s
Computers
Instrumentation
Battery chargers
Switch Mode Power Supply
Battery operated equipments
ORDER CODE
Precision
TO92
SOT23-3
SOT23
Marking
L233
L232
L231
2%
TS4041EIZ-1.2 TS4041EILT-1.2
1%
TS4041DIZ-1.2 TS4041DILT-1.2
0.5%
TS4041CIZ-1.2 TS4041CILT-1.2
Single temperature range: -40 to +85°C
Z =
TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT)
and Ammo Pack (AP)
LT =
Tiny Package (SOT23-3) - only available in Tape & Reel (LT)
March 2002
1/9
TS4041
ABSOLUTE MAXIMUM RATINGS
Symbol
I
k
I
f
P
d
T
std
ESD
T
lead
Parameter
Reverse Breakdown Current
Forward Current
Power Dissipation
1)
Storage Temperature
Human Body Model (HBM)
Machine Model (MM)
Lead Temperature (soldering, 10 seconds)
SOT23-3
TO92
Value
20
10
360
625
-65 to +150
2
200
260
Unit
mA
mA
mW
°C
kV
V
°C
1. Pd has been calculated with T
amb
= 25°C and T
j
= 150°C and
Rthja = 200°C/W for the TO92 package
Rthja = 340°C/W for the SOT23-3L package
OPERATING CONDITIONS
Symbol
I
min
I
max
T
oper
Minimum Operating Current
Maximum Operating Current
Operating Free Air Temperature Range
Parameter
Value
65
12
-40 to +85
Unit
µA
mA
°C
ELECTRICAL CHARACTERISTICS
TS4041E (2% Precision)
T
amb
= 25°C (unless otherwise specified)
Symbol
Vk
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage Tolerance
Minimum Operating Current
Test Condition
I
k
= 100µA
I
k
= 100µA
-40°C < T
amb
< +85°C
T
amb
= 25°C
-40°C < T
amb
< +85°C
I
k
= 100µA
I
kmin
< I
k
< 1mA
-40°C < T
amb
< +85°C
1mA < I
k
< 12mA
-40°C < T
amb
< +85°C
∆I
k
= 45µA to 1mA
I
k
= 100µA, t = 1000hrs
I
k
= 100µA
10Hz < f < 10kHz
0.3
2.5
0.25
120
200
Min.
1.200
-25
-36
40
Typ.
1.225
Max.
1.250
+25
+36
65
70
150
2
2.5
8
10
0.5
Unit
V
mV
µA
ppm/°C
I
kmin
∆V
ref
/∆T Average Temperature Coefficient
∆V
k
/∆I
k
Reverse Breakdown Voltage Change
with Operating Current Range
Static Impedance
Long Term Stability
Wide Band Noise
mV
Ω
ppm
nV/√Hz
R
ka
K
vh
En
Note :
Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
2/9
TS4041
ELECTRICAL CHARACTERISTICS
TS4041D (1% Precision)
T
amb
= 25°C (unless otherwise specified)
Symbol
Vk
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage Tolerange
Minimum Operating Current
Test Condition
I
k
= 100µA
I
k
= 100µA
-40°C < T
amb
< +85°C
T
amb
= 25°C
-40°C < T
amb
< +85°C
I
k
= 100µA
I
kmin
< I
k
< 1mA
-40°C < T
amb
< +85°C
1mA < I
k
< 12mA
-40°C < T
amb
< +85°C
∆I
k
= 45µA to 1mA
I
k
= 100µA, t = 1000hrs
I
k
= 100µA
10Hz < f < 10kHz
0.3
2.5
0.25
120
200
Min.
1.213
-12
-25
40
Typ.
1.225
Max.
1.237
+12
+25
65
70
150
2
2.5
8
10
0.5
Unit
V
mV
µA
ppm/°C
I
kmin
∆V
ref
/∆T Average Temperature Coefficient
∆V
k
/∆I
k
Reverse Breakdown Voltage Change
with Operating Current Range
Static Impedance
Long Term Stability
Wide Band Noise
mV
Ω
ppm
nV/√Hz
R
ka
K
vh
En
Note :
Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
ELECTRICAL CHARACTERISTICS
TS4041C (0.5% Precision)T
amb
= 25°C (unless otherwise specified)
Symbol
Vk
Parameter
Reverse Breakdown Voltage
Reverse Breakdown Voltage Tolerange
Minimum Operating Current
Test Condition
I
k
= 100µA
I
k
= 100µA
-40°C < T
amb
< +85°C
T
amb
= 25°C
-40°C < T
amb
< +85°C
I
k
= 100µA
I
kmin
< I
k
< 1mA
-40°C < T
amb
< +85°C
1mA < I
k
< 12mA
-40°C < T
amb
< +85°C
∆I
k
= 45µA to 1mA
I
k
= 100µA, t = 1000hrs
I
k
= 100µA
10Hz < f < 10kHz
0.3
2.5
0.25
120
200
Min.
1.219
-6
-16
40
Typ.
1.225
Max.
1.231
+6
+16
60
65
120
1.5
2
6
8
0.5
Unit
V
mV
µA
ppm/°C
I
kmin
∆V
ref
/∆T Average Temperature Coefficient
∆V
k
/∆I
k
Reverse Breakdown Voltage Change
with Operating Current Range
Static Impedance
Long Term Stability
Wide Band Noise
mV
Ω
ppm
nV/√Hz
R
ka
K
vh
En
Note :
Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
3/9
TS4041
Reference voltage versus cathode current
12
8
4
0
-4
-8
Reference voltage versus cathode current
100
Cathode current (µA)
Cathode current (mA)
50
0
-50
-1
-0.5
0
0.5
1
1.5
-1
-0.5
Reference voltage (V)
1
0.5
Reference voltage (V)
0
1.5
Test circuit
Reference voltage versus Temperature
1.26
1.25
Cathode voltage (V)
R
Ik=(Vin-Vref)/R
Vout=Vref
+2%
+1%
+0.5%
1.24
1.23
1.22
1.21
1.2
1.19
-40
-0.5%
-1%
-2%
-20
0
20
40
60
80
Temperature (°C)
Static impedance versus temperature
0.25
Static impedance (Ohms)
0.24
0.23
0.22
0.21
0.2
-40
Noise voltage versus frequency
800
C
L
=10µF
Noise voltage (nV/Hz)
600
400
C
L
=100µF
200
C
L
=0µF
0
-20
0
20
40
60
Temperature (°C)
80
0
1
10
100
1,000
10,000
Frequency (kHz)
4/9
TS4041
Pulse response for Ik=100µA
3V
Test circuit for pulse response at Ik=100µA
18K
Ω
Ik=1
00µA
0V
Input
1.225V
0V
Output
0
2
4
6
8
10
Time (µs)
Pulse response for Ik=1mA
3V
Input
Test circuit for pulse response at Ik=1mA
1.8K
Ω
Ik=1m
A
0V
1.225V
Output
0V
0
2
4
6
8
10
Time (µs)
Output
5/9
Intput
Pulse
G
enerator
Output
Intput
P
ulse
G
enerator
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