TS432CTB0G [TSC]
Adjustable Precision Shunt Regulator; 可调式精密并联稳压器
| 型号： | TS432CTB0G |
| 厂家： | 
TAIWAN SEMICONDUCTOR COMPANY, LTD |
| 描述： | Adjustable Precision Shunt Regulator |
| 文件： | 总12页 (文件大小：980K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TS432
Adjustable Precision Shunt Regulator
TO-92
SOT-23
SOT-25
Pin Definition:
1. Reference
2. Anode
Pin Definition:
Pin Definition:
1. N/C
2. N/C *
1. Reference
2. Cathode
3. Anode
3. Cathode
3. Cathode
4. Reference
5. Anode
* (pin 2 is connect to substrate
and must be connected to Anode
or left open)
General Description
TS432 series is a three-terminal adjustable shunt regulator with specified thermal stability. The output voltage may be
set to any value between Vref (approximately 1.24V) and 18V with two external resistors. TS432 series has a typical
output impedance of 0.05Ω. Active output circuitry provides a very sharp turn-on characteristic, making TS432 series
excellent replacement for zener diode in many applications.
Features
Ordering Information
●
Precision Reference Voltage
Part No.
TS432xCT B0
TS432xCT B0G
TS432xCT A3
TS432xCT A3G
TS432xCX RF
TS432xCX RFG
TS432xCX5 RF
TS432xCX5 RFG
Package
TO-92
TO-92
Packing
1Kpcs / Bulk
1Kpcs / Bulk
2Kpcs / Ammo
2Kpcs / Ammo
3Kpcs / 7” Reel
3Kpcs / 7” Reel
3Kpcs / 7” Reel
3Kpcs / 7” Reel
TS432 – 1.24V±2%
TS432A – 1.24V±1%
TS432B – 1.24V±0.5%
TO-92
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●
●
●
●
●
●
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Minimum Cathode Current for Regulation: 20uA(typ.)
Equivalent Full Range Temp. Coefficient: 50ppm/ ºC
Programmable Output Voltage up to 18V
Fast Turn-On Response
TO-92
SOT-23
SOT-23
SOT-25
SOT-25
Sink Current Capability of 80uA to 100mA
Low Dynamic Output Impedance: 0.05Ω
Low Output Noise
Note: Where x denotes voltage tolerance
Blank: ±2%, A: ±1%, B: ±0.5%
Halogen Free Available
“G” denotes for Halogen free products
Application
Block Diagram
●
●
●
●
●
●
Voltage Monitor
Delay Timmer
Constant –Current Source/Sink
High-Current Shunt Regulator
Crow Bar
Over-Voltage / Under-Voltage Protection
Absolute Maximum Rating (Ta = 25oC unless otherwise noted)
Parameter
Symbol
Limit
18
100
Unit
V
mA
mA
Cathode Voltage (Note 1)
Continuous Cathode Current Range
Reference Input Current Range
Vka
Ik
Iref
3
TO-92
0.625
0.35
Power Dissipation
Pd
W
SOT-23
SOT-25
0.35
Junction Temperature
TJ
+150
0 ~ +70
-65 ~ +150
oC
oC
oC
Operation Temperature Range
Storage Temperature Range
TOPER
TSTG
Note 1: Voltage values are with respect to the anode terminal unless otherwise noted.
1/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
Recommend Operating Condition
Parameter
Symbol
Vka
Limit
16
Unit
V
Cathode Voltage (Note 1)
Continuous Cathode Current Range
Ik
100
mA
Recommend Operating Condition
Parameter
Symbo
Test Conditions
Min
Typ
Max
Unit
TS432
1.215
1.227
1.233
1.264
1.252
1.246
Vka =Vref, Ik=10mA (Figure 1)
Ta=25oC
Reference voltage
Vref
1.240
V
TS432A
TS432B
Deviation of reference input
voltage
Vka =Vref, Ik=10mA
Ta= full range (Figure 1)
Ika=10mA, Vka = 16V to Vref
(Figure 2)
∆Vref
∆Vref/∆Vka
Iref
--
--
--
--
--
--
--
10
-1.0
0.25
0.04
0.125
0.2
25
-2.7
0.5
0.8
0.5
0.4
80
mV
mV/V
uA
Radio of change in Vref to
change in cathode Voltage
R1=10KΩ, R2=
Ta= full range (Figure 2)
R1=10KΩ, R2= , Ika=10mA
∞
, Ika=10mA
Reference Input current
Deviation of reference input
current, over temp.
∞
∆Iref
uA
Ta= full range (Figure 2)
Vref=0V (Figure 3),
Vka=16V
Off-state Cathode Current
Dynamic Output Impedance
Ika(off)
|Zka|
uA
f<1KHz, Vka=Vref
Ω
Ika=1mA to 100mA (Figure 1)
Minimum Operating Cathod
Current
Ika(min)
Vka=Vref (Figure 1)
20
uA
* The deviation parameters ∆Vref and ∆Iref are defined as difference between the maximum value and minimum value
obtained over the full operating ambient temperature range that applied.
* The average temperature coefficient of the
reference input voltage, αVref is defined as:
Where: T2-T1 = full temperature change.
αVref can be positive or negative depending on whether Vref Min. or Vref Max occurs at the lower ambient
temperature. Example: ∆Vref=7.2mV and the slope is postive, Vref=1.241V at 25oC, ΔT=125oC
* The dynamic impedance ZKA is defined as:
* When the device operating with two external resistors, R1 and R2, (refer to Figure 2) the total dynamic impedance of
the circuit is given by:
2/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
Test Circuits
Figure 3: Off-State Current
Figure 2: Vka > Vref
Figure 1: Vka = Vref
Additional Information – Stability
When TS432 series is used as a shunt regulator, there are two options for selection of CL, are recommended for optional stability:
A) No load capacitance across the device, decouple at the load.
B) Large capacitance across the device, optional decoupling at the load.
The reason for this is that TS432 series exhibits instability with capacitances in the range of 10nF to 1uF (approx.) at light cathode
current up to 3mA (typ). The device is less stable the lower the cathode voltage has been set for. Therefore while the device will be
perfectly stable operating at a cathode current of 10mA (approx.) with a 0.1uF capacitor across it, it will oscillate transiently during
start up as the cathode current passes through the instability region. Select a very low capacitance, or alternatively a high
capacitance (10uF) will avoid this issue altogether. Since the user will probably wish to have local decoupling at the load anyway,
the most cost effective method is to use no capacitance at all directly across the device. PCB trace/via resistance and inductance
prevent the local load decoupling from causing the oscillation during the transient start up phase.
Note: if the TS432 series is located right at the load, so the load decoupling capacitor is directly across it, then this capacitor will
have to be ≤1nF or ≥10uF.
Applications Examples
Figure 5: Output Control for Three Terminal
Figure 4: Voltage Monitor
Fixed Regulator
3/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
Applications Examples (Continue)
Figure 7: High Current Shunt Regulator
Figure 6: Shunt Regulator
Figure 9: Constant Current Source
Figure 8: Series Pass Regulator
Figure 10: TRIAC Crowbar
Figure 11: SCR Crowbar
4/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
Applications Examples (Continue)
Vin
Vout
<Vref
V+
>Vref ≈0.74V
Figure 12: Single-Supply
Comparator with Temperature-
Compensated Threshold
Figure 14: Delay Timer
Figure 13: Constant Current Sink
5/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
Typical Performance Characteristics
Test Circuit for Voltage Amplification
Figure 14: Small-Signal Voltage Gain and Phase Shift vs. Frequency
Test Circuit for Reference Impedance
Figure 15: Reference Impedance vs. Frequency
6/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
Typical Performance Characteristics
Test Circuit for Curve A
The areas under the curves represent conditions that may
cause the device to oscillate. For curves B, C, and D, R2 and
V+ were adjusted to establish the initial VKA and IKA
conditions with CL=0. VBATT and CL then were adjusted to
determine the ranges of stability.
Test Circuit for Curve B, C and D
Figure 16: Stability Boundary Condition
Test Circuit for Pulse Response, Ik=1mA
Figure 17: Pulse Response
7/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
Electrical Characteristics
Figure 19: Reference Current vs. Temperature
Figure 18: Reference Voltage vs. Temperature
Figure 20: Cathode Current vs. Cathode Voltage
8/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
TO-92 Mechanical Drawing
TO-92 DIMENSION
MILLIMETERS INCHES
DIM
MIN
4.30
4.30
MAX
4.70
4.70
MIN
MAX
0.185
0.185
A
B
C
D
E
F
0.169
0.169
14.30(typ)
0.563(typ)
0.43
2.19
3.30
2.42
0.37
0.49
2.81
3.70
2.66
0.43
0.017
0.086
0.130
0.095
0.015
0.019
0.111
0.146
0.105
0.017
G
H
Marking Diagram
X = Tolerance Code
(A = ±1%, B = ±0.5%, Blank = ±2%,)
Y = Year Code
M = Month Code
(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
= Month Code for Halogen Free Product
(O=Jan, P=Feb, Q=Mar, R=Apl, S=May, T=Jun, U=Jul, V=Aug, W=Sep,
X=Oct, Y=Nov, Z=Dec)
L = Lot Code
9/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
SOT-23 Mechanical Drawing
SOT-23 DIMENSION
MILLIMETERS
MIN MAX
0.95 BSC
1.9 BSC
2.60
INCHES
MIN MAX.
DIM
A
A1
B
C
D
E
F
0.037 BSC
0.074 BSC
3.00
1.70
3.10
1.30
0.10
0.50
0.20
0.60
10º
0.102
0.118
0.067
0.122
0.051
0.004
0.020
0.008
0.024
10º
1.40
2.80
1.00
0.00
0.35
0.10
0.30
5º
0.055
0.110
0.039
0.000
0.014
0.004
0.012
5º
G
H
I
J
Marking Diagram
2 = Device Code
X = Tolerance Code
(A = ±1%, B = ±0.5%, C = ±2%,)
Y = Year Code
M = Month Code
(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
= Month Code for Halogen Free Product
(O=Jan, P=Feb, Q=Mar, R=Apl, S=May, T=Jun, U=Jul, V=Aug, W=Sep,
X=Oct, Y=Nov, Z=Dec)
L = Lot Code
10/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
SOT-25 Mechanical Drawing
SOT-25 DIMENSION
MILLIMETERS
INCHES
MIN
DIM
MIN
0.09
0.30
0.09
2.70
1.40
MAX
1.25
0.50
0.25
3.10
1.80
MAX.
0.0492
0.0197
0.0098
0.1220
0.0709
A+A1
B
C
D
E
0.0354
0.0118
0.0035
0.1063
0.0551
E
1.90 BSC
0.0748 BSC
H
2.40
3.00
0.09449
0.1181
L
0.35 BSC
0.0138 BSC
Ө1
S1
0º
10º
0º
10º
0.95 BSC
0.0374 BSC
Marking Diagram
2 = Device Code
X = Tolerance Code
(A = ±1%, B = ±0.5%, C = ±2%,)
Y = Year Code
M = Month Code
(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
= Month Code for Halogen Free Product
(O=Jan, P=Feb, Q=Mar, R=Apl, S=May, T=Jun, U=Jul, V=Aug, W=Sep,
X=Oct, Y=Nov, Z=Dec)
L = Lot Code
11/12
Version: C07
TS432
Adjustable Precision Shunt Regulator
Notice
Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf,
assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, to any
intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for
such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale
and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability,
or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers
using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for
any damages resulting from such improper use or sale.
12/12
Version: C07
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