HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : IC200401
Issued Date : 2004.03.01
Revised Date : 2008.04.01
Page No. : 1/7
H431 Series
ADJUSTABLE SHUNT REGULATOR
H431 Series Pin Assignment
3
2
3-Lead Plastic
SOT-23
Package Code: N
Pin 1: Reference
Pin 2: Cathode
Pin 3: Anode
3-Lead Plastic
SOT-89
Package Code: M
Pin 1: Reference
Pin 2: Anode
Pin 3: Cathode
3-Lead Plastic
TO-92
Package Code: A
Pin 1: Reference
Pin 2: Anode
Pin 3: Cathode
12
8
•
1
2
3
4
3
3-Lead Plastic
SO-8
Package Code: S
7
6
Pin 1: Cathode
5
Pin 2/3/6/7: Anode
Pin 4/5: NC
Pin 8: Reference
1
Description
The H431 series are three-terminal adjustable regulators with guarante-ed
thermal stability over applicable temperature ranges. The output voltage
may be set to any value between V
REF
(approximately 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.
2
3
1
Features
•
Programmable output voltage
•
Temperature coefficient is 50ppm/
o
C typical
•
Temperature compensated for operation over full temperature range
•
Low output noise voltage
•
Fast turn on response
Ordering Information
Package
SOT-23
SOT-89
TO-92
SO-8
V
REF
: 2.495±2%
H431AN
H431AM
H431AA
H431AS
V
REF
: 2.495±1%
H431BN
H431BM
H431BA
H431BS
V
REF
: 2.495±0.5%
H431CN
H431CM
H431CA
H431CS
Absolute Maximum Ratings
(Operating temperature range applies unless otherwise specified)
Characteristics
Cathode Voltage
Cathode Current Range (Continuous)
Reference Input Current Range
Symbol
V
KA
I
K
I
REF
Value
36
-100~+150
0.05~+10
SOT-23
Power Dissipation
P
D
SOT-89
TO-92
SO-8
Operating Temperature Range
Storage Temperature Range
T
opr
T
stg
-40~+125
-65~+150
280
770
770
770
o
o
Unit
V
mA
mA
mW
C
C
Operating Conditions
Characteristics
Cathode Voltage
Cathode Current Range (Continuous)
Symbol
V
KA
I
K
Min.
V
REF
1
Max.
36
100
Unit
V
mA
H431 Series
HSMC Product Specification
HI-SINCERITY
MICROELECTRONICS CORP.
Functional Block Diagram & Symbol
Functional Block Diagram
Symbol
Spec. No. : IC200401
Issued Date : 2004.03.01
Revised Date : 2008.04.01
Page No. : 2/7
Cathode
+
Cathode
Reference
V
REF
-
Reference
Anode
Anode
Test Circuits
Fig 1. V
K
=V
REF
I
I
IN
I
REF
I
K
V
REF
R
2
V
REF
V
K
IN
R
1
Fig 2. V
K
>V
REF
I
I
V
K
IN
V
K
Fig 3. Off-State Current
I
REF
I
K
I
OFF
Note: V
K
=V
REF
(1+R
1
/R
2
)+I
REF
xR
1
Electrical Characteristics
(T
A
=25
o
C unless otherwise specified)
Characteristics
Reference Input
Voltage
(Fig1)
H431AN/AM/AA/AS
H431BN/BM/BA/BS
H431CN/CM/CA/CS
Symbol
V
REF
Test Conditions
V
K
=V
REF
, I
K
=10mA
V
K
=V
REF
, I
K
=10mA
T
min
≤T
a
≤T
max
I
K
=10mA,
ΔV
K
=10V to V
REF
I
K
=10mA,
ΔV
K
=36V to 10V
I
K
=10mA, R
1
=10kΩ,
R
2
=∞
I
K
=10mA, R
1
=10kΩ,
R
2
=∞, T
a
=Full Range
V
K
=V
REF
V
K
=36V, V
REF
=0
V
K
=V
REF
, f≤1kHz
I
K
=1 to 100mA
Min
2.445
2.470
2.483
-
-
-
-
-
-
-
-
Typ
2.495
2.495
2.495
4
-1.4
-1.0
2
0.4
0.4
0.1
0.2
Max
2.545
2.520
2.507
17
-2.7
-2.0
4
1.2
1.0
1.0
0.5
Unit
V
Deviation of Reference Input Voltage
Over-Temperature
(Fig1)
Ratio of Change in Reference Input Voltage
to the Change in Cathode Voltage
(Fig2)
V
REF(dev)
ΔV
REF
/
ΔV
K
mV
mV/V
mV/V
uA
uA
mA
uA
Ω
Reference Input Current
(Fig2)
Deviation of Reference Input Current Over
Full Temperature Range
(Fig2)
Minimum Cathode Current for Regulation
(Fig1)
Off-State Cathode Current
(Fig3)
Dynamic Output Impedance
(Fig1)
I
REF
I
REF(dev)
I
K(min)
I
K(off)
Z
K
H431 Series
HSMC Product Specification
HI-SINCERITY
MICROELECTRONICS CORP.
Characteristics Curve
Cathode Current & Cathode Voltage
150
125
Change in Reference Input Voltage (mV)
100
Cathode Current (mA)
75
50
25
0
-25
-50
-75
-100
-2
-1
0
1
Cathode Voltage (V)
2
3
V
K
=V
REF
, Ta=25 C
Test Circuit (Fig1)
o
Spec. No. : IC200401
Issued Date : 2004.03.01
Revised Date : 2008.04.01
Page No. : 3/7
Change in Reference Input Voltage
& Cathode Voltage
5
0
-5
-10
-15
-20
-25
-30
-35
-40
0
10
20
30
Cathode Voltage (V)
40
50
I
K
=10mA, Ta=25 C
Test Circuits (Fig2)
o
Reference Input Voltage & Temperature
2.58
2.56
Reference Input Voltage (V)
2.54
2.52
2.50
2.48
2.46
2.44
2.42
2.40
-40
-20
0
20
40
60
80
100
120
o
Temperature ( C)
Cathode Current & Cathode Voltage
1000
800
600
400
200
0
-200
-400
-2
-1
0
1
Cathode Voltage (V)
2
3
o
V
K
=V
REF
, I
K
=10mA
Test Circuit (Fig1)
Cathode Current (uA)
V
K
=V
REF
, Ta=25 C
Test Circuit (Fig1)
Small Signal Voltage Amplification &
Frequency
60
50
Voltage Amplification (dB)
40
30
Vout
20
+
15K
Ik
240
10
0
-10
1000
10uF
8.2K
GND
10000
100000
Frequency (Hz)
1000000
10000000
H431 Series
HSMC Product Specification
HI-SINCERITY
MICROELECTRONICS CORP.
Typical Application
Fig 4. Shunt Regulator
Spec. No. : IC200401
Issued Date : 2004.03.01
Revised Date : 2008.04.01
Page No. : 4/7
Fig 5. High Current Shunt Regulator
Vcc
R1
Vout
Vcc
R1
Vout
R2
R2
Vout=(1+R
1
/R
2
)V
REF
Fig 6. Output Control of a Three-Terminal Fixed
Regulator
Vcc
Vout
R1
Vout=(1+R
1
/R
2
)V
REF
Fig 7. Series Pass Regulator
Vcc
H7805
IN
OUT
COMMON
Vout
R1
R2
R2
Vout=(1+R
1
/R
2
)V
REF
; V
out(min)
=V
REF
+5V
Vout=(1+R
1
/R
2
)V
REF
; V
out(min)
=V
REF
+V
BE
Fig 8. Current Limiter or Current Source
Fig 9. Constant Current Sink
Vcc
Vcc
RCL
Iout
Isink
Rs
Iout=V
REF
/R
CL
Isink=V
REF
/R
S
H431 Series
HSMC Product Specification
HI-SINCERITY
MICROELECTRONICS CORP.
SOT-23 Dimension
Marking:
A
L
Spec. No. : IC200401
Issued Date : 2004.03.01
Revised Date : 2008.04.01
Page No. : 5/7
4 3 1
3
Pb Free Mark
B S
1
2
Pb-Free: " "
(Note)
Normal: None
Note: Pb-free product can distinguish by the green
label or the extra description on the right
side of the label.
Pin Style: 1.Reference 2.Cathode 3.Anode
Material:
•
Lead solder plating: Sn60/Pb40 (Normal),
Sn/3.0Ag/0.5Cu or Pure-Tin (Pb-free)
•
Mold Compound: Epoxy resin family,
flammability solid burning class: UL94V-0
V
G
DIM
A
B
C
D
G
H
J
K
L
S
V
Min.
2.80
1.20
0.89
0.30
1.70
0.013
0.085
0.32
0.85
2.10
0.25
Max.
3.04
1.60
1.30
0.50
2.30
0.10
0.177
0.67
1.15
2.75
0.65
*: Typical, Unit: mm
C
D
H
3-Lead SOT-23 Plastic
Surface Mounted Package
HSMC Package Code: N
K
J
SOT-89 Dimension
Marking:
Date Code
HSMC Logo
H 4 3 1
Control Code
Pb-Free: "
.
"
(Note)
Normal: None
C
H
Pb Free Mark
B
1
E
F
G
A
2
3
D
Note: Green label is used for pb-free packing
J
I
Pin Style: 1.Reference 2.Anode 3.Cathode
Material:
•
Lead solder plating: Sn60/Pb40 (Normal),
Sn/3.0Ag/0.5Cu or Pure-Tin (Pb-free)
•
Mold Compound: Epoxy resin family,
flammability solid burning class: UL94V-0
DIM
A
B
C
D
E
F
G
H
I
Min.
4.40
4.05
1.50
2.40
0.36
*1.50
*3.00
1.40
0.35
Max.
4.60
4.25
1.70
2.60
0.51
-
-
1.60
0.41
*: Typical, Unit: mm
3-Lead SOT-89 Plastic
Surface Mounted Package
HSMC Package Code: M
H431 Series
HSMC Product Specification
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