TA76431AS ,ADJUSTABLE PRECISION SHUNT REGULATORTA76431ASTA76421A§v I -
TA76431F ,Adjustable Precision Shunt RegulatorFeatures Precision Reference Voltage: V = 2.495 V ± 2% REF Small Temperature Coefficient: |αV ..
TA76431FR ,Adjustable Precision Shunt RegulatorTA76431F/FR TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA76431F,TA76431FR Adju ..
TA76431S ,Adjustable Precision Shunt RegulatorTA76431S TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA76431S Adjustable Precis ..
TA76432AF ,Adjustable precision Shunt regulatorFeatures TA76432AF/AFR • Precision reference voltage: V = 1.26 V ± 1% (Ta = 25°C) REF• Small tempe ..
TA76432AFR ,Adjustable precision Shunt regulatorBlock Diagram Circuit Symbol Cathode (K) Cathode (K) Reference (REF) Reference (REF) 1.26 V ..
TC551001BFTL-85L ,SILICON GATE CMOS 131,072 WORD x 8 BIT STATIC RAMfeatures with an operating current of 5mA/MHz (typ.) and a minimum cycle time of 70ns. When CE1 is ..
TC551001BPL-70L ,SILICON GATE CMOS 131,072 WORD x 8 BIT STATIC RAMFeatures• Low power dissipation: 27.5mW/MHz (typ.)• Standby current: 4m A (max.) at Ta = 25
TA76431AS
ADJUSTABLE PRECISION SHUNT REGULATOR
TOSHIBA TA76431AS
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA764311AS
ADJUSTABLE PRECISION SHUNT REGULATOR
FEATURES
0 Precision Reference Voltage : VREF = 2.495V i 1%
0 Small Temperature Coefficient : laUREFl = 46 ppm/°C
0 Adjustable Output Voltage : VREF s VOUT s 36V
0 Low Dynamic Output Impedance : IZKAI = 0.150(Typ.) 1 REF
FUNCTIONAL BLOCK DIAGRAM CIRCUIT SYMBOL
REFERENCE CATHODE (K)
(REF) CATHODE (K)
REFERENCE SSIP3-P-1.27
(REF) . .
ANODE(A) Weight . 0.36g (Typ.)
ANODE(A)
THIS IC CONTAINS ELECTROSTATIC SENSITIVE ELEMENT.
PLEASE HANDLE WITH CAUTION.
EQUIVALENT CIRCUIT
CATHODE
REFERENCE 0
980910EBA1
OTOSHIBA is continually working to improve the quality and the 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 observe standards of safety, and to avoid
situations in which a malfunction or failure of a TOSHIBA product could cause loss of human life, bodily injury or
damage to property. In developing your designs, please ensure that TOSHIBA products are used within sdecified
operating ranges as set forth in the most recent products specifications. Also, please keep in mind the precautions
and conditions set forth in the TOSHIBA Semiconductor Reliability Handbook.
OThe products described in this document are subject to the foreign exchange and foreign trade laws.
OThe information contained herein is presented only as a guide for the applications of our products. No responsibility
is assumed by TOSHIBA CORPORATION for any infringements of intellectual propert or other rights of the third
parties which may result from its use. No license is granted by implication or ot erwise under any intellectual
property or other rights of TOSHIBA CORPORATION or others.
OThe information contained herein is subject to change without notice.
1998-12-24 1/7
TOSHIBA
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Cathode Voltage VKA 37 V
Cathode Current IK - 100--150 mA
Reference Voltage VREF 7 V
Reference Current IREF 50 PA
Reference-Anode Reverse -l 10 mA
Current REF
Power Dissipation Ta = 25°C PD 800 mW
Operating Temperature Top, -40-85 ''C
Storage Temperature Tstg - 55--150 ''C
RECOMMENDED OPERATING CONDITIONS
CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT
Cathode Voltage VKA VREF - 36 V
Cathode Current IK 1 - 100 mA
Operating Temperature Top, -40 - 85 "C
TA76431AS
1998-12-24 2/7
TOSHIBA TA76431AS
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Ta = 25°C, IK = 10 mA)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Reference Voltage VREF - VKA = VREF 2.470 2.495 2.520 V
Deviation of Reference Input VREF(dev) 0°C S: Ta sc 70°C 8 17 mV
Voltage Over Temperature (Note) VKA = VREF
Ratio of Change in Reference. - VREF s VKA s 10V - 0.8 2.7
Input Voltage to the Change m AVREF/ JV mV/V
Cathode Voltage - 10V s VKA s 36V - 0.5 2.0
Reference Input Current IREF - VKA = VREF - 1.4 4 tz/i
0°C s Ta s 70°C
Deviation of Reference Input IREF(dev) '
- VKA = VREF - 0.3 1.2 [1A
Current Over Temperature (Note) R1 = 10 kn, R2 = CK)
Minimum Cathode Current for
Regulation lkmin - VKA - VREF - 0.4 1.0 mA
Off-State Cathode Current lKoff - VKA = 36V, VREF = 0V - - 1.0 [A
. VKA = I/REF, f s 1kHz
Dynamic Impedance IZKAI - 1mA s IKE 100 mA - 0.15 0.5 n
Note : 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;
VREF(dev) x 106 “a
VREF@25°C o
IOKVREFI = T(Ppm/ C)
1998-12-24 3/7
TOSHIBA
TEST PARAMETER
(1) VKA = VREF MODE
INPUT tCy-MN-C) VKA
(3) OFF-STATE MODE
INPUT VKA
lIKoff
TYPICAL APPLICATIONS
(1) 2.5 V REFERENCE
' VOUT = 2.5 v
TA76431AS
(2) VKA > VREF MODE
INPUT tCr-Nw-C) VKA
IREE El
VKA = VREF(
1 + R2
, 'REF‘R1
(2) SHUNT REGULATOR
VIN o-N'':-" VOUT
VOUT = VREF(1+V)+IREF.R1
1998-12-24 4/7
TOSHIBA
TA76431AS
15, 100
OFF STATE CATHODE CURRENT
400 VKA = VREF'
Ta = 25°C
- 1.0 0 1.0 2.0 3.0 4.0
CATHODE VOLTAGE VKA (V)
IK - VKA
t2----d2 VKA
- 1.0 o 1.0 2.0 3.0 4.0
CATHODE VOLTAGE VKA (V)
lKoff - Ta
-40 0 40 80 120 160
AMBIENT TEMPERATURE Ta (''C)
REFERENCE VOLTAGE VREF
CHANGE IN REFERENCE VOLTAGE
AVREF (mV)
REFERENCE CURRENT
VREF - Ta
VKA=VREF INPUT I K
R=10mA .- -,
VREF'- -.
Max.=2520mV
Typ.=2495mV
Min.=2470mV
-40 0 40 80 120 160
AMBIENT TEMPERATURE Ta (°C)
A VREF - VKA
- 10 's,
INPUT d2---d2 VKA
-30 £3:
VREF ON?! It R= 10mA
as i Ta = 25°C
0 10 20 30 40 50
CATHODE VOLTAGE VKA (v)
IREF - Ta
-o VKA
3 tA l- - ..l
I i. .,'
IREF 1” IK = 10 mA
"""---.-.., ..- - -
-40 0 40 80 120
AMBIENT TEMPERATURE Ta (°C)
1998-12-24 5/7
TOSHIBA
TA76431AS
DYNAMICIMPEDANCE Z“ ((2)
VOLTAGE SWING
ZKA - f
e = L-ZKA
Rs RS+ZKA
Rs > ZKA
07 eo = -fi-zk,
3 Ta = 25°C GND Rs
VKA = VREF LZKA = 30-115
1mAS-RS100mA ei y
0.3 "''
1 k 10 k 100 k 1 M
FREQUENCY f (Hz)
PULSE RESPONSE
_ OUTPUT
/ V l l l
J INPUT
MONITOR OUT
1 GENERATOR a
f = 100 kHz
0 1 2 3 4 5 6
TIME t (ps)
A UNSTABLE
:_e STABLE
D B UNSTABLE
0.001 0.003
OPEN LOOP VOLTAGE GAIN AV
IM 10M
FREQUENCY f (Hz)
POWER DISSIPATION PD
AMBIENT TEMPERATURE Ta
STABILITY BOU N DATY CONDITIONS
Ta=25°c
A VKA = VREF
B VKA= 5V @IK =10mA
C VKA = 10V ©R =10mA
D VKA =15v@1K =10mA -
C UNSTABLE
D UNSTABLE
3 10 30 100
LOAD CAPACITANCE CL (pF)
156°C/W
Test Circuit for"
CurveB, C, D
80 100
Test Circuit for CurveA
1 50 n
1998-12-24 6/7
TOSHIBA TA76431AS
OUTLINE DRAWING
SSIP3-P-1.27 Unit : mm
5.1MAX
8.2MAX
0.75MAX I =1 I
1.0MAX / H J] H
0.80MAX J I
n r j 0.
0.60MAX _ T"'-
2.2MAX
10.5MIN
1 .27 1 .27
4.1 MAX
Weight : 0.369 (Typ.)
1998-12-24 7/7
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