TLVH431 family
Low voltage adjustable precision shunt regulators
Rev. 1 — 27 April 2012
Product data sheet
1. General description
Low voltage three-terminal shunt regulator family with an output voltage range between
V
ref
(1.24 V) and 18 V, to be set by two external resistors.
Table 1.
Product overview
Package
SOT23
SOT753
1%
SOT23
SOT753
0.75 %
SOT23
SOT753
Temperature range (T
amb
)
0
C
to 70
C
TLVH431CDBZR
-
-
TLVH431ACDBZR
-
-
-
-
40 C
to 85
C
TLVH431IDBZR
-
-
TLVH431AIDBZR
-
-
-
-
40 C
to 125
C
TLVH431QDBZR
TLVH431MQDBZR
TLVH431QDBVR
TLVH431AQDBZR
TLVH431AQDBVR
TLVH431DQDBZR
TLVH431DQDBVR
Pinning configuration
(see
Table 5)
normal pinning
mirrored pinning
-
normal pinning
-
normal pinning
-
Reference voltage
tolerance (V
ref
)
1.5 %
TLVH431AMQDBZR mirrored pinning
TLVH431DMQDBZR mirrored pinning
2. Features and benefits
Programmable output voltage up to 18 V
Three different reference voltage tolerances:
Standard grade: 1.5 %
A-Grade: 1 %
D-Grade: 0.75 %
Typical temperature drift: 4 mV (in a range of
40 C
up to 125
C)
Low output noise
Typical output impedance: 0.1
Sink current capability: 0.08 mA to 70 mA
AEC-Q100 qualified (grade 1)
3. Applications
Shunt regulator
Precision current limiter
Precision constant current sink
Isolated feedback loop for Switch Mode Power Supply (SMPS)
NXP Semiconductors
TLVH431 family
Low voltage adjustable precision shunt regulators
4. Quick reference data
Table 2.
Symbol
V
KA
I
K
V
ref
Quick reference data
Parameter
cathode-anode voltage
cathode current
reference voltage
Standard-Grade (1.5 %)
A-Grade (1 %)
D-Grade (0.75 %)
V
KA
= V
ref
; I
K
= 10 mA;
T
amb
= 25
C
1222
1228
1231
1240
1240
1240
1258
1252
1249
mV
mV
mV
Conditions
Min
V
ref
0.08
Typ
-
-
Max
18
70
Unit
V
mA
5. Ordering information
Table 3.
Ordering information
Package
Name
TLVH431CDBZR
TLVH431IDBZR
TLVH431QDBZR
TLVH431MQDBZR
TLVH431ACDBZR
TLVH431AIDBZR
TLVH431AQDBZR
TLVH431AMQDBZR
TLVH431DQDBZR
TLVH431DMQDBZR
TLVH431QDBVR
TLVH431AQDBVR
TLVH431DQDBVR
SC-74A
plastic surface-mounted package; 5 leads
SOT753
Description
Version
SOT23
TO-236AB plastic surface-mounted package; 3 leads
Type number
6. Marking
Table 4.
Marking codes
Marking code
[1]
NM*
NN*
NP*
NW*
NQ*
NR*
NS*
Type number
TLVH431AMQDBZR
TLVH431DQDBZR
TLVH431DMQDBZR
TLVH431QDBVR
TLVH431AQDBVR
TLVH431DQDBVR
-
Marking code
[1]
NX*
*SE
*SF
AB3
AB6
AC1
-
Type number
TLVH431CDBZR
TLVH431IDBZR
TLVH431QDBZR
TLVH431MQDBZR
TLVH431ACDBZR
TLVH431AIDBZR
TLVH431AQDBZR
[1]
TLVH431_FAM
* = placeholder for manufacturing site code.
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 27 April 2012
2 of 25
NXP Semiconductors
TLVH431 family
Low voltage adjustable precision shunt regulators
7. Functional diagram
The TLVH431 family comprises a range of 3-terminal adjustable shunt regulators, with
specified thermal stability over applicable automotive and commercial temperature
ranges. The output voltage can be set to any value between V
ref
(approximately 1.24 V)
and 18 V with two external resistors (see
Figure 10).
These devices have a typical output
impedance of 0.1
.
Active output circuitry provides a very sharp turn-on characteristic,
making these devices excellent replacements for Zener diodes in many applications like
on-board regulation, adjustable power supplies and switching power supplies.
CATHODE
REF
V
ref
ANODE
006aab569
Fig 1.
Functional diagram
8. Pinning information
Table 5.
Pin
1
2
3
Pinning
Symbol
REF
k
a
Description
reference
cathode
anode
1
2
3
a
REF
k
006aab355
Simplified outline
Graphic symbol
SOT23; normal pinning: All types without MQDBZR ending
SOT23; mirrored pinning: All types with MQDBZR ending
1
2
3
k
REF
a
cathode
reference
anode
1
2
3
a
REF
k
006aab355
TLVH431_FAM
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 27 April 2012
3 of 25
NXP Semiconductors
TLVH431 family
Low voltage adjustable precision shunt regulators
Pinning
…continued
Symbol
n.c.
n.c.
k
REF
a
Description
not connected
not connected
cathode
reference
anode
1
2
3
[1]
[1]
Table 5.
Pin
SOT753
1
2
3
4
5
[1]
Simplified outline
Graphic symbol
5
4
a
REF
k
006aab355
Pin 1 and 2 can be connected to anode for better thermal performance.
9. Limiting values
Table 6.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
V
KA
I
K
I
ref
P
tot
Parameter
cathode-anode voltage
cathode current
reference current
total power dissipation
SOT23
T
amb
25
C
[1]
[2]
[3]
Conditions
Min
-
25
0.05
-
-
-
-
-
-
-
0
40
40
65
Max
20
80
3
390
570
800
310
460
700
150
+70
+85
+125
+150
Unit
V
mA
mA
mW
mW
mW
mW
mW
mW
C
C
C
C
C
SOT753
[1]
[2]
[3]
T
j
T
amb
junction temperature
ambient temperature
TLVH431XCDBZR
TLVH431XIDBZR
TLVH431XQDBZR
TLVH431XQDBVR
T
stg
[1]
[2]
[3]
storage temperature
Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided copper, tin-plated and standard
footprint.
Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for anode 1 cm
2
.
Device mounted on a ceramic PCB, Al
2
O
3
, standard footprint.
TLVH431_FAM
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 27 April 2012
4 of 25
NXP Semiconductors
TLVH431 family
Low voltage adjustable precision shunt regulators
1000
P
tot
(mW)
800
(1)
006aac968
1000
P
tot
(mW)
800
(1)
006aad056
600
(2)
600
(2)
400
(3)
400
(3)
200
200
0
-75
-25
25
75
125
T
amb
(°C)
175
0
-75
-25
25
75
125
T
amb
(°C)
175
(1) Ceramic PCB, Al
2
O
3
, standard footprint
(2) FR4 PCB, mounting pad for anode 1 cm
2
(3) FR4 PCB, standard footprint
(1) Ceramic PCB, Al
2
O
3
, standard footprint
(2) FR4 PCB, mounting pad for anode 1 cm
2
(3) FR4 PCB, standard footprint
Fig 2.
SOT23: Power derating curves
Fig 3.
SOT753: Power derating curves
Table 7.
ESD maximum ratings
T
amb
= 25
C unless otherwise specified.
Symbol
V
ESD
Parameter
electrostatic discharge voltage
Conditions
MIL-STD-883
(human body model)
machine model
Min
-
-
Max
4
400
Unit
kV
V
10. Recommended operating conditions
Table 8.
Symbol
V
KA
I
K
Operating conditions
Parameter
cathode-anode voltage
cathode current
Conditions
Min
V
ref
0.08
Max
18
70
Unit
V
mA
TLVH431_FAM
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 27 April 2012
5 of 25
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