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TA76431F/FR
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA76431F, TA76431FR
Adjustable Precision Shunt Regulator Features
* * * * * * Precision Reference Voltage: VREF = 2.495 V 2% Small Temperature Coefficient: |VREF| = 46 ppm/C Adjustable Output Voltage: VREF VOUT 36 V Low Dynamic Output Impedance: |ZKA| = 0.15 (Typ.) Small Flat Package TA76431FR is a new Toshiba shunt regulator. This device's pin assignment is the reverse of that of the TA76431F. Weight: 0.05 g (typ.)
Functional Block Diagram
Reference (REF) Cathode (K)
Circuit Symbol
Cathode (K)
Reference (REF)
Anode (A)
Anode (A)
This IC contains electrostatic sensitive elements. Please take care to avoid generating static electricity when handling these devices.
Marking
(1) TA76431F
Part No. (or abbreviation code)
(2) TA76431FR
Part No. (or abbreviation code)
A
Lot No. (weekly code)
S
A line indicates lead (Pb)-free package or lead (Pb)-free finish.
B
Lot No. (weekly code)
S
A line indicates lead (Pb)-free package or lead (Pb)-free finish.
Pin Assignment
No. 1 2 1 2 3 3 (1) TA76431F Cathode (K) Anode (A) Reference (REF) (2) TA76431FR Reference (REF) Anode (A) Cathode (K)
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TA76431F/FR
How to Order
No. (1) Product No. TA76431F TA76431F (TE12L) TA76431FR TA76431FR (TE12L) PW-MINI (SOT-89) (surface-mount type) Package Type Packing Type On cut tape (TE12L): 100/tape section Embossed tape: 1000/tape On cut tape (TE12L): 100/tape section Embossed tape: 1000/tape Minimum Order 100 1 tape 100 1 tape
(2)
Equivalent Circuit
Cathode
R3
Q4
Q3
C1 Q2
Reference
Q10
Q11 R5
Q5 C2 R4
R6
R7
R2
Q1 Q6 R9
Q9
R8
Anode
Absolute Maximum Ratings (Ta = 25C)
Characteristics Cathode voltage Cathode current Reference voltage Reference current Reference-anode reverse current Power dissipation (Ta = 25C) Operating temperature Storage temperature Symbol VKA IK VREF IREF -IREF PD Topr Tstg 2 Rating 37 -100~150 7 50 10 500 1000 (Note) -40~85 -55~150 Unit V mA V A mA mW C C
Note 1: Mounted on ceramic substrate (250 mm x 0.8 mm t) Note 2: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook ("Handling Precautions"/Derating Concept and Methods) and individual reliability data (i.e. reliability test report and estimated failure rate, etc).
R1
Q8
Q7
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TA76431F/FR
Recommended Operating Conditions
Characteristics Cathode voltage Cathode current Operating temperature Symbol VKA IK Topr Min VREF 1 -40 Typ. Max 36 100 85 Unit V mA C
Electrical Characteristics
Characteristics Reference voltage Deviation of reference input voltage over temperature Ratio of change in reference input voltage to the change in cathode voltage Reference Input current Deviation of reference input current over temperature Minimum cathode current for regulation Off-State cathode current Dynamic impedance
(Unless otherwise specified, Ta = 25C, IK = 10 mA)
Symbol VREF VREF (dev) VREF/V IREF IREF (dev) IKmin IKoff ZKA VKA = VREF 0C < Ta < 70C, VKA = VREF = = VREF < VKA < 10 V = = 10 V < VKA < 36 V = = VKA = VREF 0C < Ta < 70C, VKA = VREF, = = R1 = 10 k, R2 = VKA = VREF VKA = 36 V, VREF = 0 V VKA = VREF, f < 1 kHz, = 1 mA < IK < 100 mA == Test Condition Min 2.440 Typ. 2.495 8 0.8 0.5 1.4 0.3 0.4 0.15 Max 2.550 17 2.7 2.0 4 1.2 1.0 1.0 0.5 Unit V mV mV/V A A mA A
VREF (dev) x 10 6 VREF @25C (ppm C ) VREF = Ta
min Ta
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VREF (dev)
VREF
The deviation parameters VREF (dev) and IREF (dev) are defined as the maximum variation of the VREF and IREF over the rated temperature range. The average temperature coefficient of the VREF is defined as:
max
TA76431F/FR
Test Parameter
(1) VKA = VREF Mode
RSD IK
(2) VKA > VREF Mode
RSD
R1
Input
VKA
Input
VKA IK
IREF VREF
VREF
R VKA = VREF 1 + 1 + IREF R1 R2
(3) OFF-State Mode
RSD IKoff
Input
VKA
Typical Application Circuits
(1) 2.5 V Reference
VIN
(2) Shunt Regulator
RSD
R1
VIN VOUT 2.5 V -
R2
VOUT
GND
R VOUT = VREF 1 + 1 + IREF R1 R2
R2
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TA76431F/FR
IK - VKA
150 Input VKA IK 2600
VREF - Ta
VKA = VREF VKA Input VREF VREF max = 2550 mV 2520 IK
(mV)
IK = 10 mA 2560
(mA)
100
50
VKA = VREF Ta = 25C
Reference voltage VREF
Cathode current
IK
0
2480
VREF typ. = 2495 mV
-50
2440 VREF min = 2440 mV 2400 -80
-100 -2.0
-1.0
0
1.0
2.0
3.0
4.0
-40
0
40
80
120
160
Cathode voltage
VKA
(V)
Ambient temperature Ta (C)
IK - VKA Change in reference voltage VREF (mV)
800 Input VKA IK 0
VREF - VKA
(A)
600
-10
IK
400
VKA = VREF Ta = 25C
Cathode current
-20 Input VKA IK
200
IK min
-30
VREF
0
R1
R2
IK = 10 mA Ta = 25C
-200 -2.0
-1.0
0
1.0
2.0
3.0
4.0
-40 0
10
20
30
40
50
Cathode voltage
VKA
(V)
Cathode voltage
VKA
(V)
IKoff - Ta
100 4 Input 50 30 VKA = 36 V VREF = 0 V 10 5 3 VKA Input
IREF - Ta
VKA 10k IK
IKoff (nA)
IREF (A)
IKoff
3
IREF IK = 10 mA 2
Off state cathode current
Reference current
1
1
-40
0
40
80
120
160
0
-40
0
40
80
120
Ambient temperature Ta (C)
Ambient temperature Ta (C)
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TA76431F/FR
ZKA - f
50 30 220 IK 10 5 3 GND ei eo RS 60
eo = ei Z KA RS + ZKA ei RS Z KA
AV - f
10 k IK VOUT 220 GND 10 M 160
ZKA ()
AV (dB)
RS ZKA eo =
50 40 30 20 10 0 -10 1k
10 F VIN
Dynamic impedance
Open loop voltage gain
e R ZKA = o S ei
1 0.5 0.3
Ta = 25C VKA = VREF 1 mA -IK 100 mA
IK = 10 mA Ta = 25C
0.1 1k
10 k
100 k
1M
Frequency f
(Hz)
10 k
100 k
Frequency f
(Hz)
Pulse response
5 0 Input
PD max - Ta max (W)
1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 (1) (1) Mounted on ceramic substate 2 (250 mm x 0.8 mm t) (2) Ta = 25C 125C/W
3 Output Input monitor Pulse 1 Generator f = 100 kHz GND 1 2 3 4 5 6 50 220 Output
2
Allowable power dissipation PD
Voltage swing ()
(2)
250C/W
0 0
20
40
60
80
100
10 k 1M 120
140
Time t (s)
Ambient temperature Ta (C)
Safe operating area
100 A. Unstable Ta = 25C A. VKA = VREF B. VKA = 5 V Stable 60 B. Unstable Stable @IK = 10 mA C. VKA = 10 V @IK = 10 mA D. VKA = 15 V @IK = 10 mA Test circuit for curve A 150 IK CL
Cathode current
IK
(mA)
80
40
Test circuit for curve B, C, D 150 D. Unstable C. Unstable IK CL
20
0 0.001
0.003
0.01
0.03
0.1
0.3
1
3
5
10
30
100
Load capacitance CL (F)
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2006-11-06
TA76431F/FR
Package Dimensions
Weight: 0.05 g (typ.)
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TA76431F/FR
RESTRICTIONS ON PRODUCT USE
* The information contained herein is subject to change without notice.
20070701-EN
* TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.).These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in his document shall be made at the customer's own risk. * The products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patents or other rights of TOSHIBA or the third parties. * Please contact your sales representative for product-by-product details in this document regarding RoHS compatibility. Please use these products in this document in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations.
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2006-11-06

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