TL431ASF HTC Korea TAEJIN Technology Co., TL431ASF Datasheet

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TL431ASF

Manufacturer Part Number
TL431ASF
Description
Manufacturer
HTC Korea TAEJIN Technology Co.
Datasheet

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Part Number:
TL431ASF
Quantity:
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Part Number:
TL431ASF
Manufacturer:
HTC
Quantity:
20 000
PROGRAMMABLE PRECISION SHUNT REGULATOR
Absolute Maximum Ratings
(Operating temperature range applies unless otherwise specified)
Dec. 2010 – Rev.1.5
FEATURES
APPLICATION
DESCRIPSION
The TL431 is a three-terminal adjustable shunt regulator
with
temperature V
external resistors. This device has a typical dynamic
output impedance of 0.2Ω. Active output circuitry provides
a very sharp turn-on characteristic, making this device
excellent replacement for zener diodes in many
applications. The TL431 is characterized for operation
from -40℃ to +125℃.
Cathode Voltage
Cathode Current Range(Continuous)
Reference Input Current Range
Junction Temperature Range
Operating Temperature Range
Storage Temperature Range
Programmable Output Voltage to 40V
Guaranteed 0.5% Reference Voltage Tolerance
Low (0.2Ω Typ.) Dynamic Output Impedance
Cathode Current Range(Continuous) – 100 ~ 150 mA
Equivalent Full Range Temperature Coefficient of
50PPM/℃
Temperature Compensated For Operation Over
Low Output Noise Voltage
Fast Turn-on Response
TO-92, SOT-89 or SOT-23 3L Package
Shunt Regulator
Precision High-Current Series Regulator
High-Current Shunt Regulator
Crowbar Circuit
PWM Converter With Reference
Voltage Monitor
Precision Current Limiter
Full Rate Operating Temperature Range
specified
REF
CHARACTERISTIC
thermal
(Approx. 2.5V) and 40V with two
stability
over
applicable
- 1 -
SYMBOL
T
T
V
I
* Refer to the page 2 for detailed ordering Information,
REF
T
OPR
I
STG
KA
K
ORDERING INFORMATION
TL431
TL431TA
TL431SF
TL431F
J
PIN 1. Reference
Device
MIN.
-0.05
-100
-40
-40
-65
-
SOT-23 PKG
SOT-89 PKG
TO-92 PKG
2. Anode
SOT-23 3L
TO-92(Bulk)
TO-92(Taping)
SOT-89 3L
MAX.
150
150
125
150
TL431/A/C
1
1
42
10
T
O
P
Package
TOP
TOP
3. Cathode
2
2
3
3
2
1
3
HTC
UNIT
mA
mA
V

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TL431ASF Summary of contents

Page 1

PROGRAMMABLE PRECISION SHUNT REGULATOR FEATURES Programmable Output Voltage to 40V Guaranteed 0.5% Reference Voltage Tolerance Low (0.2Ω Typ.) Dynamic Output Impedance Cathode Current Range(Continuous) – 100 ~ 150 mA Equivalent Full Range Temperature Coefficient of 50PPM/℃ Temperature Compensated For Operation ...

Page 2

... Dec. 2010 – Rev.1.5 SYMBOL Tolerance Order No. TL431C TL431GC 0.5% TL431CTA TL431GCTA TL431A TL431GA 1% TL431ATA TL431GATA TL431 TL431G 2% TL431TA TL431GTA TL431CSF 0.5% TL431GCSF TL431ASF 1% TL431GASF TL431SF 2% TL431GSF 0.5% TL431CF 1% TL431AF 2% TL431F - 2 - TL431/A/C MIN. MAX REF 0.5 100 Package Marking Supplied As TL431-C TL431GC TL431-C ...

Page 3

PROGRAMMABLE PRECISION SHUNT REGULATOR Ordering Information (continued) Dec. 2010 – Rev.1 TL431/A/C HTC ...

Page 4

PROGRAMMABLE PRECISION SHUNT REGULATOR PIN CONFIGURATION Marking Side TO-92 PKG PIN DESCRIPTION Pin No TL431 ELECTRICAL CHARACTERISTICS CHARACTERISTIC Reference Input Voltage Deviation of Reference Input Voltage Ratio of Change in Reference Input Voltage to ...

Page 5

PROGRAMMABLE PRECISION SHUNT REGULATOR TEST CIRCUITS < Fig 1. Test circuit for < Fig 3. Test circuit for I KA(OFF) Dec. 2010 – Rev.1.5 > < Fig 2. Test circuit for V REF > ...

Page 6

PROGRAMMABLE PRECISION SHUNT REGULATOR The deviation parameters ΔV minimum values obtained over the recommended temperature range. The average full-range temperature coefficient of the reference voltage, α REF αV (ppm ℃ REF Where : ΔT is ...

Page 7

PROGRAMMABLE PRECISION SHUNT REGULATOR TYPICAL OPERATING CHARACTERISTICS Reference Voltage vs. Ambient Temperature Cathode Current vs. Cathode Voltage Small Signal Voltage Amplification vs. Frequency 10k 100k Frequency, f [Hz] Dec. 2010 – Rev.1.5 ...

Page 8

PROGRAMMABLE PRECISION SHUNT REGULATOR TYPICAL OPERATING CHARACTERISTICS Stability Boundary Conditions 100 STABLE -Load Capacitance (nF) L Dec. 2010 – Rev.1.5 (continued) C STABLE B ...

Page 9

PROGRAMMABLE PRECISION SHUNT REGULATOR APPLICATION INFORMATION 1. Shunt Regulator Note Should provide cathode current 1mA to the TL431 at minimum V 2. Precision High-Current Series Regulator Note Should provide cathode current≥1mA to the TL431 ...

Page 10

PROGRAMMABLE PRECISION SHUNT REGULATOR 4. High-Current Shunt Regulator 5. Precision 5-V 1.5A Regulator 6. Efficient 5-V Precision Regulator NOTE Should provide cathode current≥1mA to the TL431. B Dec. 2010 – Rev.1 TL431/A/C HTC ...

Page 11

PROGRAMMABLE PRECISION SHUNT REGULATOR 7. PWM Converter With Reference 8. Voltage Monitor NOTE and R4 are selected to provide the desired LED intensity and cathode current ≥1mA to the TL431 at the available V 9. Delay Timer ...

Page 12

PROGRAMMABLE PRECISION SHUNT REGULATOR 10. Precision Current Limiter 11. Precision Constant-Current Sink Dec. 2010 – Rev.1 TL431/A/C HTC ...

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