TA76431AF ,ADJUSTABLE PRECISION SHUNT REGULATORFEATURES0 Precision Reference Voltage : VREF = 2.495V i 1%0 Small Temperature Coefficient : IaVREFI ..
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 ..
TC551001BFTL-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
TA76431AF
ADJUSTABLE PRECISION SHUNT REGULATOR
TOSHIBA TA76431AF
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA76431lAF
ADJUSTABLE PRECISION SHUNT REGULATOR
FEATURES
. Precision Reference Voltage : VREF = 2.495V i 1%
0 Small Temperature Coefficient : laVREFl = 46 ppm/°C
0 Adjustable Output Voltage : VREF sc VOUT sc 36V
0 Low Dynamic Output Impedance : IZKAI = 0.150(Typ.)
0 Small Flat Package
FUNCTIONAL BLOCK DIAGRAM CIRCUIT SYMBOL
REFERENCE CATHODE (K)
(REF) CATHODE (K) HSOP3-P-1.50
REFEREQECFE) Weight : 0.059 (Typ.)
ANODE(A) .
ANODE (A) Marking f-h
THIS IC CONTAINS ELECTROSTATIC SENSITIVE ELEMENT. AC
PLEASE HANDLE WITH CAUTION. ll l] l]
EQUIVALENT CIRCUIT
CATHODE
REFERENCE 0 m .-o
03 U "
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.
1999-05-1 2 1/7
TOSHIBA
TA76431AF
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 pr/i
Reference-Anode Reverse -l 10 m A
Current REF
P r Di . ati n Ta = 25°C P 500 mW
owe Issnp IO * D 1000
Operating Temperature Topr -40--85 °C
Storage Temperature Tstg - 55--150 ''C
* : Mounted on ceramic substrate (250 mm2 x 0.8t)
RECOMMENDED OPERATING CONDITIONS
CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT
Cathode Voltage VKA VREF - 36 V
Cathode Current IK 1 - 100 mA
Operating Temperature Topr - 40 - 85 "C
1999-05-1 2 2/7
TOSHIBA TA76431AF
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 sc 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 [1A
0°C s Ta s 70°C
Deviation of Reference Input IREF(dev) '
- VKA = VREF - 0.3 1.2 #A
Current Over Temperature (Note) R1 = 10 kn, R2 = 00
Minimum Cathode Current for
Regulation lkmin - VKA - VREF - 0.4 1.0 mA
Off-State Cathode Current lKoff - VKA = 36V, VREF = 0V - - 1.0 prA
. VKA = I/REF, fs 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;
vREFéiizé X106
la REFI “a pp
1999-05-1 2 3/7
TOSHIBA
TEST PARAMETER
(1) VKA = VREF MODE
INPUT o-MN-C) VKA
(3) OFF-STATE MODE
INPUT VKA
I Ikoff
TYPICAL APPLICATIONS
(1) 2.5 V REFERENCE
VOUT = 2.5 V
TA76431AF
(2) VKA > VREF MODE
INPUT d2---d2 VKA
IREE El
VKA = VREF(
) + IREF-R1
(2) SHUNT REGULATOR
VIN c'-'''':" VOUT
VOUT = VREF(1 + E) + IREF-R1
1999-05-12 4/7
TOSHIBA
TA76431AF
- 50 KA REF
- 2.0 - 1.0 0 1.0 2.0 3.0 4.0
CATHODEVOLTAGE VKA (v)
IK - VKA
B0; VKA
i 600 ...K
g _ .1
F- 400 VKA=VREF'
E Ta=25°C
- 2.0 - 1.0 0 1.0 2.0 3.0 4.0
CATHODEVOLTAGE VKA (v)
lKoff - Ta
"-(7 VKA
‘lKoff
- I VKA = 36V
VREF = 0V
OFF STATE CATHODE CURRENT
- 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 hK
lK=10mA .--1
VREF' -
Max. = 2520 mV
2480 Typ. = 2495 mV
Min. = 2470 mV
-40 0 40 80 120 160
AMBIENT TEMPERATURE Ta (''C)
A VREF - VKA
-10 's,
INPUT Cy-NSN-ty VKA
-30 £3:
VREF oe) It R = 10 mA
a: i Ta = 25°C
0 IO 20 30 40 50
CATHODE VOLTAGE VKA (V)
IREF - Ta
t2-sov-_-t7 VKA
3 g .--r'.
c '. .,'
IREF ", IK = 10 mA
2 "ss,
"'"---..-... ..- - -
-40 0 40 80 120
AMBIENT TEMPERATURE Ta (°C)
1999-05-1 2 5/7
TOSHIBA
TA76431AF
DYNAMICIMPEDANCE ZKA ((2)
VOLTAGE SWING
ZKA - f
eo = L'ZKA 3
Rs Rs+ZKA
Rs > ZKA
07 GND eo = Til-aka ©
3 Ta = 25°C s tr'
VKA - VREF --ZKA = 'e-Rs é
1mAS-RS100mA e. y o
0.5 A" 2
0.3 "'' g;
1 k 10 k 100 k 1 M 1 k
FREQUENCY f (Hz)
PULSE RESPONSE
0 'iii".
a VA th.
"f V g
"s OUTPUT T-
2 / l l l a
J INPUT E
MONITOR OUT E
PUT it
1 PULSE g
GENERATOR
f = 100 kHz
0 1 2 3 4 5 6 0 20
TIME t (ps)
STABILITY BOUNDATY CONDITIONS
A UNSTABLE Ta = 25°C
A A VKA = VREF
' B VKA= 5V @IK =
v CVKA=10V@IK=
:_e STABLE D VKA =15V@IK =
f, ABLE
D B UNSTABLE
E c UNSTABLE
D UNSTABLE
0.0010003 0.01 0.03 0.1 0.3 1 3 10 30
LOAD CAPACITANCE CL (pF)
10 k 100 k 1 M 10 M
FREQUENCY f (Hz)
C) MOUNTED ON CERAMIC
SUBSTRATE (250 mm2 x 0.8 t)
© Ta = 25°C
125°C/W
250°C/W
40 60 80 100 120 140
AMBIENT TEMPERATURE Ta CC)
Test Circuit for CurveA
10 mA 1K
10 mA -
....|I....
Test Circuit for:
CurveB, C, D
1999-05-1 2 6/7
TOSHIBA TA76431AF
OUTLINE DRAWING
HSOP3-P-1.50 Unit : mm
A 4.6MAX _ _1 .6MAX_
‘1.7MAX I 0.4i0.05
/ h ' g '__£
it] if
.4 .J 2 ",5s, ,
+008 H - u? -
0.45.0:05 = l, CD
+0.08 +0.08
0.4-'ltl2 ' f, ' F th4L'ltl2
] 51013.5:0 l
Weight : 0.05g (Typ.)
1999-05-12 7/7
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