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GTL432 Datasheet Preview

GTL432 Datasheet

ADJUSTABLE SHUNT REGULATOR

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ISSUED DATE :2004/02/23
REVISED DATE :2004/11/25D
GTL432
Adjustable Shunt Regulator
Description
The GTL432 series are three-terminal adjustable precision shunt regulators with guaranteed stable temperature over the
applicable extended commercial temperature range. The output voltage may be set at any level greater than 1.24V (VREF)
up to 20V merely by selecting two external resistors that act as a voltage divider network. These devices have a typical
output impedance of 0.2 . Active output circuitry provides very sharp turn-on characteristics, making these devices
excellent improved replacements for Zener diodes in many applications.
The precise +/- 2% reference voltage tolerance of GTL432 make it possible in many applications to avoid the use of a
variable resistor, consequently saving cost and eliminating drift and reliability problems associated with it.
Features
*Precision reference voltage
A Rank: 1.24V 0.5%
B Rank: 1.24V 1%
C Rank: 1.24V 2%
*Sink current capability: 200 mA.
*Minimum cathode current for regulation: 150 A.
*Equivalent full-range temp coefficient: 30 ppm/ .
*Fast turn-on Response.
*Low dynamic output impedance: 0.2 .
*Programmable output voltage to 20V.
*Low output noise.
Package Dimensions
D
E
S1
TO-92
SEAT IN G
PLANE
b1
e1 b
e
C
Typical Application Circuit
REF.
A
S1
b
b1
C
Millimeter
Min. Max.
4.45 4.7
1.02 -
0.36 0.51
0.36 0.76
0.36 0.51
REF.
D
E
L
e1
e
Millimeter
Min. Max.
4.44 4.7
3.30 3.81
12.70
-
1.150
1.390
2.42 2.66
Block Diagram
Symbol
GTL432
1/5




GTM

GTL432 Datasheet Preview

GTL432 Datasheet

ADJUSTABLE SHUNT REGULATOR

No Preview Available !

Absolute Maximum Ratings at Ta = 25
Parameter
Symbol
Junction Temperature
Tj
Storage Temperature
Tstg
Cathode Voltage
VKA
Continuous Cathode Current
IKA
Reference Input Current Range
IREF
Total Power Dissipation
PD
Ratings
+150
-65 ~ +150
20
-10~+250
-0.05~+10
225
ISSUED DATE :2004/02/23
REVISED DATE :2004/11/25D
Unit
V
mA
mA
mW
Electrical Characteristics(Ta = 25 ,unless otherwise specified.)
Parameter
Symbol
Min Typ. Max. Unit
Test Conditions
Reference Voltage
GTL432C
GTL432B
GTL432A
VREF
1.215
1.228
1.234
1.24 1.265
1.24 1.252
1.24 1.246
V
VKA= VREF , IK=10mA
(Fig.1)
Deviation of reference Input Voltage
Over temperature(note1)
VREF/ T
-
3.0
20
mV
VKA= VREF , IK=10mA
Ta=Full range (Fig.1)
Ratio of Change in Reference Input
Voltage to the Change in Cathode
Voltage
VREF/ VKA
-
-1.4
-2.0
mV/V
IK=10mA
(Fig.2)
VKA=20V~VREF
Reference Input Current
Deviation of reference Input Current
Over Temperature Range
IREF
IREF
- 1.4 3.5 uA IK=10mA,R1=10K ,R2= (Fig.2)
-
0.4
1.2
uA
IK=10mA,R1=10K ,R2=
Ta=Full range(Fig.2)
Minimum Cathode Current for
Regulation
Off-State Cathode Current
Dynamic Output Impedance
(note2)
IKA(min)
IKA(off)
ZkA
- 0.15 0.3 mA VKA=VREF(Fig.1)
- 0.1 1.0 uA VKA=20V,VREF=0 (Fig.3)
- 0.2 0.5
VKA=VREF, IK=1 ~100mA
F 1.0KHz(Fig.1)
Note1. Deviation of reference input voltage, VDEV, is defined as the maximum variation of the reference over the full
temperature range.
The average temperature coefficient of the reference input voltage VREF is defined as:
Where:
T2 – T1 = full temperature change.
VREF can be positive or negative depending on whether the slope is positive or negative.
Note2. The dynamic output impedance, RZ, is defined as:
GTL432
2/5


Part Number GTL432
Description ADJUSTABLE SHUNT REGULATOR
Maker GTM
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GTL432 Datasheet PDF






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