HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : Preliminary Data
Issued Date : 1998.04.08
Revised Date : 2001.02.15
Page No. : 1/4
H431AM/BM/CM
AJDUSTABLE SHUNT REGULATOR
Description
The H431XM series are three-terminal adjustable regulators with guaranteed thermal stability over applicable temperature ranges. The
output voltage may be set to any value between V
2.495 volts) and 36 volts with two external resistors. These devices
have a typical dynamic output impedance of 0.2Ω. Active output
circuitry provides a very sharp turn-on characteristic, making these devices excellent replacement for zener diodes in many applications.
Features
Programmable output voltage
•
Temperature coefficient is 50ppm/°C typical
•
Temperature compensated for operation ov er
•
full temperature range
•
Low output noise voltage
•
Fast turn on response
•
(approximately
REF
Classification
Rank A B C
V
REF
2.495±2% 2.495±1% 2.495±0.5%
Absolute Maximum Ratings
( Operating temperature range applies unless otherwise specified )
Characteristics Symbol Value Unit
Cathode Voltage V
Cathode Current Range (Continuous) I
Reference Input Current Range I
Power Dissipation P
Operating Temperature Rang e T
Storage Temperature Range T
KA
K
REF
D
opr
stg
-100~+150 mA
0.05~+10 mA
-65~+150
37 V
770 mW
0~+70
C
°
C
°
H431AM, H431BM, H431CM HSMC Product Specification
HI-SINCERITY
)
)
MICROELECTRONICS CORP.
Functional Block Diagram & Symbol
Spec. No. : Preliminary Data
Issued Date : 1998.04.08
Revised Date : 2001.02.15
Page No. : 2/4
Functional Block Diagram : Symbol :
Cathode
Reference
+
-
V
REF
Anode
Test Circuits
IN
I
REF
V
I
I
REF
V
Z
I
Z
IN
I
I
I
REF
V
REF
V
Z
I
Z
Cathode
Reference
Anode
IN V
Z
Fig1. Test Circuit for VZ=V
Electrical Characteristics
REF
Fig 2. Test Circuit for VZ>V
Note : VZ=V
( Ta=25°C unless otherwise specified )
Characteristics Symbol Test Conditions Min Typ Max Unit
Reference Input Voltage
H431AM 2.445 2.495 2.545
H431BM 2.470 2.495 2.520
H431CM
Deviation of Reference Input Voltage
Over-Temperature
Ratio of Change in Reference Input
Voltage to the Change in Cathode
V
∆
Voltage
Reference Input Current I
Deviation of Reference Input Current
Over Full Temperature Range
I
Minimum Cathode Current for
Regulation
Off-State Cathode Current I
Dynamic impedance Z
REF
V
REF
REF(dev
V
REF
V
∆
KA
REF
REF(dev
I
K(min)
K(off)
KA
REF
REF
REF
T
≤
a
REFxR1
, IK=10mA
, IK=10mA
T
≤
max
(1+R1/R2)+I
VKA=V
VKA=V
T
min
IK=10mA,
VKA=10V-V
∆
/
REF
IK=10mA,
KKA=36V-10V
∆
IK=10mA, R1=10kΩ,
R2=
∞
IK=10mA, R1=10kΩ,
R2=∞, Ta=Full
Range
VKA=V
VKA=36V, V
VKA=V
REF
REF
, f≤1.0KHz
REF
IK=1 to 100mA
Fig3. Test Circuit for Off-State
Current
V
2.480 2.495 2.510
-417mV
--1.4-2.7mV
--1.0-2.0V
-24uA
-0.41.2uA
-0.41.0mA
=0 - 0.1 1.0 uA
-0.20.5
Ω
H431AM, H431BM, H431CM HSMC Product Specification
HI-SINCERITY
MICROELECTRONICS CORP.
Characteristics Curve
Spec. No. : Preliminary Data
Issued Date : 1998.04.08
Revised Date : 2001.02.15
Page No. : 3/4
150
125
100
Catho de Curr ent ( m A)
-100
75
50
25
0
-25
-50
-75
Cat hode Current & Cathode Voltage
-3 -2 -1 0 1 2 3 4
Catho de Vol tage (V)
Dynamic Impedance & Frequence
100
10
VKA=V
TA=25ºC
Change i n Referen ce In pu t Volt age
0
-5
-10
-15
-20
(mV)
-25
-30
ref
-35
Chan g e in Ref er e nce Input Voltage
-40
0 1020304050
1000
800
600
400
Cat hode Current & Cathode Voltage
& Cat hode Voltage
IK=10m
TA=25ºC
Catho de Vol tage (V)
I m pe dance (ohm)
1
IK=10mA to 100mA
0.1
1 10 100 1000 10000
Freque ncy (Hz)
TA=25ºC
Noi se Vol t age & Frequ ency
100
)
1/2
10
Noise Voltage (nV/H z
VKA=V
IK=10mA
1
10 100 1000 10000 100000
Freque ncy (Hz)
TA=25ºC
200
Catho de Curr ent ( uA)
0
-200
-400
-2 -1 0 1 2 3
Catho de Vol tage (V)
VKA=V
TA=25ºC
ref
Small Signal Voltage Amplification
& Frequ ency
100
10
ref
Voltage Amplificat ion ( d B)
IK=10mA
TA=25ºC
1
1000 10000 100000 1000000 10000000
Freque ncy (Hz)
H431AM, H431BM, H431CM HSMC Product Specification
HI-SINCERITY
MICROELECTRONICS CORP.
SOT-89 Dimension
Spec. No. : Preliminary Data
Issued Date : 1998.04.08
Revised Date : 2001.02.15
Page No. : 4/4
Marking :
C
B
D
321
E
H
HSMC Logo
Date Code
Part Number
Style : Pin 1.Reference 2.Anode 3.Cathod e
Package Code
I
F
G
A
3-Lead SOT-89 Plastic Surface Mounted Package
HSMC Package Code : M
DIM
Inches Millimeters Inches Millimeters
Min. Max. Min. Max.
DIM
Min. Max. Min. Max.
A 0.1732 0.1811 4.40 4.60 F 0.0583 0.0598 1.48 1.52
B 0.1594 0.1673 4.05 4.25 G 0.1165 0.1197 2.96 3.04
C 0.0591 0.0663 1.50 1.70 H 0.0551 0.0630 1.40 1.60
D 0.0945 0.1024 2.40 2.60 I 0.0138 0.0161 0.35 0.41
E 0.0141 0.0201 0.36 0.51
Notes :
Material :
• Lead : 42 Alloy ; solder plating
• Mold Compound : Epoxy resin family, flammability solid burning class:UL94V-0
1.Dimension and tolerance based on our Spec. dated May. 05,1996.
2.Controlling dimension : millimeters.
3.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material.
4.If there is any question with packing specification or packing method, pleas e contact your l ocal HSMC sal es office.
*:Typical
Important Notice:
• All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of HSMC.
• HSMC reserves the right to make changes to its products without notice.
•
HSMC semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems.
• HSMC assumes no liability for any consequence of customer product design, infringem ent of pat ents, or applic ati on assistance.
Head Office And Factory :
•
Head Office
Tel : 886-2-25212056 Fax : 886-2-25632712, 25368454
•
Factory 1 :
Tel : 886-3-5983621~5 Fax : 886-3-5982931
•
Factory 2 :
Tel : 886-3-5977061 Fax : 886-3-5979220
H431AM, H431BM, H431CM HSMC Product Specification
(Hi-Sincerity Microelectronics Corp.) : 10F.,No. 61, Sec. 2, Chung-Shan N. Rd. Taipei Taiwan R.O.C.
No. 38, Kuang Fu S. Rd., Fu-Kou Hsin-Chu Industrial Park Hsin-Chu Taiwan. R.O.C
No. 17-1, Ta-Tung Rd., Fu-Kou Hsin-Chu Industrial Park Hsin-Chu Taiwan. R.O.C
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