DataSheet
33V HIGH PRECISE VOLTAGE REFERENCE
AZ574
General Description
Features
The AZ574 is a monolithic integrated voltage stabilizer especially designed for TV tuners.
g
g
g
g
The AZ574 is available in TO-92-2 package.
Low Temperature Coefficient
Low Dynamic Impedance
Typical Reference Voltage of 33V
High Cathode Current Capacity up to 30mA
Applications
g
TV Tuners
TO-92-2
Figure 1. Package Type of AZ574
Jan. 2011 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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DataSheet
33V HIGH PRECISE VOLTAGE REFERENCE
AZ574
Pin Configuration
Z Package
(TO-92-2)
1
ANODE
2
CATHODE
Figure 2. Pin Configuration of AZ574 (Top View)
Functional Block Diagram
CATHODE
2
VREF
1
ANODE
Figure 3. Functional Block Diagram of AZ574
Jan. 2011 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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DataSheet
33V HIGH PRECISE VOLTAGE REFERENCE
AZ574
Ordering Information
AZ574
Package
TO-92-2
-
Circuit Type
E1: Lead Free
G1: Green
Package
Z: TO-92-2
TR: Ammo
Blank: Bulk
Temperature
Range
-20 to 75oC
Part Number
Lead Free
Marking ID
Green
Lead Free
Green
Packing
Type
AZ574Z-E1
AZ574Z-G1
AZ574Z-E1
AZ574Z-G1
Bulk
AZ574ZTR-E1
AZ574ZTR-G1
AZ574Z-E1
AZ574Z-G1
Ammo
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.
Jan. 2011 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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DataSheet
33V HIGH PRECISE VOLTAGE REFERENCE
AZ574
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
Unit
Cathode Current
IKA
40
mA
Power Dissipation
PD
700 (TA=75oC)
mW
TSTG
-40 to 125
Storage Temperature
o
C
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Symbol
Min
Max
Unit
Operating Ambient Temperature
TA
-20
75
oC
Operating Cathode Current
IKA
1.5
30
mA
Electrical Characteristics
(TA=25oC, unless otherwise specified.)
Parameter
Cathode Voltage
Cathode Voltage Temperature Drift
Dynamic Impedance
Symbol
VKA
'VKA/'T
ZKA
Conditions
IKA=5mA
Min
Typ
31
IKA=5mA, TA=-20 to 75oC
(Note 2)
IKA=5mA, f=1KHz, IAC=0.5mA
Max
Unit
35
V
0.6
5
mV/oC
12
:
Note 2: Cathode voltage temperature drift is defined as maximum (worst case) change divided by the total temperature range.
Jan. 2011 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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DataSheet
33V HIGH PRECISE VOLTAGE REFERENCE
AZ574
Typical Performance Characteristics
1.00
80
0.75
IAC=IKA/10
o
Cathode Voltage Variation (%)
TA=25 C
f=1kHz
Dynamic Impedance (:
0.50
0.25
0.00
-0.25
-0.50
-0.75
60
40
20
0
-1.00
0
5
10
15
20
25
0
30
2
4
Figure 4. Cathode Voltage Variation vs. Cathode Current
10
32.4
o
IKA=5mA
-25 to 75 C
3
32.3
2
Cathode Voltage (V)
0
8
Figure 5. Dynamic Impedance vs. Cathode Current
4
Cathode Voltage Temperature Drift (mV/ C)
6
Cathode Current (mA)
Cathode Current (mA)
1
0
-1
-2
-3
32.2
32.1
32.0
-4
0
2
4
6
8
10
-40
-20
0
20
40
60
80
100
O
Cathode Current (mA)
Temperature ( C)
Figure 6. Cathode Voltage Temperature Drift vs. Cathode Current
Jan. 2011 Rev. 1. 5
Figure 7. Cathode Voltage vs. Temperature
BCD Semiconductor Manufacturing Limited
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DataSheet
33V HIGH PRECISE VOLTAGE REFERENCE
AZ574
Typical Performance Characteristics (Continued)
RS
3.0
Cathode Voltage Variation (mV)
IKA=5mA
2.5
2.0
AZ574
1.5
V
V KA
V
VKA
1.0
0.5
0.0
0
10
20
30
40
50
60
Time (min.)
Figure 8. Cathode Voltage Variation vs. Time
RS
60
Supply Voltage Variation (V)
50
40
30
IKA
A
20
10
VB
0
-10
-20
2
AZ574
-30
-40
RS=10K:
-50
RS=20K:
1
-60
2
3
4
5
6
7
8
Cathode Current (mA)
Figure 9. Supply Voltage Variation vs. Cathode Current
Jan. 2011 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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DataSheet
33V HIGH PRECISE VOLTAGE REFERENCE
AZ574
Typical Application
TUNER
+
AGC VT BAND1 BAND2 MB (5V)
IF
B1 110V
AZ574
+
+
Tuning
Signal
Figure 10. Typical Application of AZ574
Jan. 2011 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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DataSheet
33V HIGH PRECISE VOLTAGE REFERENCE
AZ574
Mechanical Dimensions
TO-92-2
1.100(0.043)
1.400(0.055)
Unit: mm(inch)
3.430(0.135)
MIN
0.360(0.014)
0.510(0.020)
3.300(0.130)
3.700(0.146)
0.000(0.000)
0.380(0.015)
1.600(0.063)
MAX
4.400(0.173)
4.700(0.185)
4.300(0.169)
4.700(0.185)
0.380(0.015)
0.550(0.022)
2.500(0.098)
3.100(0.122)
14.100(0.555)
14.500(0.571)
1.270(0.050)
TYP
2.440(0.096)
2.640(0.104)
Jan. 2011 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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