TA7780BN ,MECHANISM DRIVER FOR IC LOGIC CONTROLTOSHIBA, ELECTRONIC [IE DE. anwau? 0011?an L: r79097247 TOSHIBA. LTL'-1'itre,tc.FLit,.rrCrr"l' ".- ..
TA7784P ,Dual pre-amplifier for autoreverse. Operating supply voltage Vcc: 3.5V to 15V. Quiescent current: Iccq1 5.5mA,typ; (VIN=0, Normal EQ); Iccq 2 7mA,typ; 11mA,max (VIN=0, Metal EQ).TA7784PTA77RAPThe TA7784P is dual preamplifier for autoreverse typeand W-cassette type tape player. ..
TA7792F ,AM/FM 1 CHIP TUNER SYSTEM IC (1,5V USE)TA7792P/FTA77Q7P TA77Q7FIII. I '.I ' III. I v.-AM/FM 1 CHIP TUNER SYSTEM IC (1.5V USE)The TA7792P, ..
TA7792P ,AM/FM 1 CHIP TUNER SYSTEM IC (1,5V USE)TA7792P/FTA77Q7P TA77Q7FIII. I '.I ' III. I v.-AM/FM 1 CHIP TUNER SYSTEM IC (1.5V USE)The TA7792P, ..
TA7795F ,DUAL PREAMPLIFIER FOR AUTO-REVERSE SYSTEM (1.5V USE)TA7795F/FNTA77QEF TA77QEFNIIIIIUUI' .- ‘1'"-- I‘DUAL PREAMPLIFIERS FOR AUTO-REVERSE SYSTEM (1.5V US ..
TA7795FN ,DUAL PREAMPLIFIER FOR AUTO-REVERSE SYSTEM (1.5V USE)TA7795F/FNTA77QEF TA77QEFNIIIIIUUI' .- ‘1'"-- I‘DUAL PREAMPLIFIERS FOR AUTO-REVERSE SYSTEM (1.5V US ..
TC55257BFL-10 ,SILICON GATE CMOS 32,768 WORD X 8 BIT STATIC RAMfeatures with an operating current of5m/VMHz Exp.) and a minimum cycle time of 85ns.When CE is a lo ..
TC55257BFL-10L ,SILICON GATE CMOS 32,768 WORD X 8 BIT STATIC RAMTOSHIBA'1rm?57BPL/BFL/BSPL/BF1LqmtL85L/10LiJN)SILICON GATE CMOS32,768 WORD x 8 BIT STATIC RAMDescri ..
TC55257BFL85 ,SILICON GATE CMOS 32,768 WORD X 8 BIT STATIC RAMfeatures with an operating current of5m/VMHz Exp.) and a minimum cycle time of 85ns.When CE is a lo ..
TC55257BFL-85 ,SILICON GATE CMOS 32,768 WORD X 8 BIT STATIC RAMfeatures with an operating current of5m/VMHz Exp.) and a minimum cycle time of 85ns.When CE is a lo ..
TC55257BFL-85 ,SILICON GATE CMOS 32,768 WORD X 8 BIT STATIC RAMFeatures Pin Connection [Top View). Low power dissipation: 27.5mW/MH2 (typ.). Standby current: 211A ..
TC55257BFL-85 ,SILICON GATE CMOS 32,768 WORD X 8 BIT STATIC RAMTOSHIBA'1rm?57BPL/BFL/BSPL/BF1LqmtL85L/10LiJN)SILICON GATE CMOS32,768 WORD x 8 BIT STATIC RAMDescri ..
TA7780BN
MECHANISM DRIVER FOR IC LOGIC CONTROL
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MECHANISM DRIVER FOR IC LOGIC CONTROL Unit in mm
The TA778OBN is a mechanism driver IC designed for
IC logic control, which is especially suitable for I,',,,,,,,,.,,-,,,,,,.,.,),'
a cassette tape recorder or other tape-audio system 3
application. It Is necessary to use with a particular uIu3UJL.ILaulL7crauuluJL.3 ”
Programmable RON Array IC (PRA IC), which is logic 3
controller, TC9312N (TOSHIBA Corp.) or similar. fl 228M a T.tRti12t5
. Preparing the directly drive capability for the -,,e' E
following mechanism. _ o~150
RN (Reel Motor) E 1122;915 +t11
E Loxols 'a-w uzs-uos
CM (Capstan Motor)
Lead pitch is 1.78 and tolerance "
A PL (plunger) i0.2 against: theoretical center of
. . . each lead that is obtained on the
. Including the ASO (Auto Shut Off) amplifier. basis or No.1 and No.24 leads.
. Including the Thermal-Shut-Down circuit. JEDEC _
. Including the motor torque change circuit, which TOSHIBA 3D-26C-P
I has normal speed and high speed. Therefore it is Weight t 1.2g
possible to do dubbing in high speed. Then that
I torque is changeable by. means of external parts.
. Operation supply voltage range"". VCC(opr)=6”12V
MAXIMUM RATINGS (Ta=25°C)
CHARACTERISTIC SYMBOL RAIING UNIT
Supply Voltage VCC 15 V
Pin 9 ICM MAX 300
Drive Pin 8 IPL MAX 300
Current _ mA
Pin 7 Inc MAX 60
Pin 12 ,Pin 14 (Note 2)IRM MAX 200
Power Dissipation (Note I) PD 1200 mW
Operating Temperature Top: -25-75 ot)
Storage Temperature Tstg -55-150 "c
Note 1 t Derated above Ta=25°C in the proportion 9.6mW/°C.
Note 2 t Set up Vcc under 10V in case of IRM above lOOmA.
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ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Ta=25°C, Vcc=12V)
. TEST I
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
. CUIT
ICCQ(1) All outputs VCC=12V 3.1 3.8 5.7
quiescent Supply Current 1 are opened. mA
ICCQ(2) A11 inputs=0 Vcc=6V 2.5 3.2 4.5
Operation Supply Voltage Vcc - . 6 - 13 V
2 3 4 5 6 11 pin
n n - ' a ' , , _
ll Level VIH Each Function operate. 3 6
'd', Input Voltage Each Function 2,3,4,5, 0 - 1 0 V
E "L" Level VIL . - does not 11 pin .
H operate. 6 pin 0 - 0.7
H V 2 3 4 5 11 in
3 Input Current ""dtvel IIH1 2 (L-LV' '. - 0.17 0.4 m
ll Jr'" 1132 2 6 pin, vm=4v - 0.35 0.75
I ' ll =3.5V I =120mA . . -
(l) V14(1) 3 3 iii' RM 10 5 10 9
ll = - 0.26 0.75
RN Voltage V12(1) CC V
(2) V14(2) 3 V3=3.5V, IRM=120mA 4.6 5.1 -
V12(2) Vcc=6V - 0.29 0.9
V1=4.3V
" .2 . 6.0
RN Voltage V14
(at PLAY, High Speed Hi h Igm=40mA ll
g V =4.3V
E PLAY tfode) V14(Speed) 5 V3=3.5v 23 4.2 5.1 6.0
g: PLAY vz=3.5v
_ V11=4V IPL=300mA
E (1) VOL8-1 6 , . - 0.6 1.5 v
o PLOUT Remaining VCC=12V
p., Voltage - _
V =4V TPL=160mh
(2) lloL8-2 -6 11 , - 0.35 0.6 v
VCC=6V
=4 V = 0mA
PLCOUT Remaining VOL7 7 V6 w, IPLC 6 _ 0.9 1.3 V
Voltage 1rcc=1211
CMou'r Remaining VOL9 8 V6=av, ICM=300mA - 1.25 2.0 ll
Voltage 1lcc=12V
ASO OUT Remaining Voltage VOL20 9 I=0.7mA 0 -.. 1.0 V
ASO Sensitivity VS(ASO) 10 CNFBAJuF, RNF=569 - -56 - dBV
Ch STARTER
= = 0 0.8 2 V
Remaining Voltage VOL19 11 V15 3V, 119 5mh
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BLOCK DIAGRAM
PLAY TORQUE Ns,..-.,,,,,?"
ADJ, VSTB 100a?
. Lh --....-_ + :h.- - _
47kf2 H-SW
LOGIC men SPEED PLAY i
HIGH SPEED TORQUE ADJ, g
PLAY 1N PMI
DRIVER
Vcc CC
STARTER
CM START IN
PLAY RM+ OUT
PULSE IN
RM-o UT
-.riiih.+
(ii) t Capstan Motor
a) t Reel Motor V
PL :Plunger
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TEST CIRCUIT 1 t ICC(1),_ Icc(2) TEST CIRCUIT 2 t Till
- + Vm
- + Vcc
17 Vcc
2 3 4 5 6 17
TA7780BN /
.TA7780BN
TEST CIRCUIT 3 t V14(1), V12(1) TEST CIRCUIT 4 , V14(PLAY)
V14(2)s V12(2)
Vcc Vcc
IRM 500.0 va
v volt,
3.5V 14 3.5V
l (j, w Ct) Cyl" J; ll
TA7780BN r-C) TA7780BN
TEST CIRCUIT 5 t V14(High Speed PLAY) TEST CIRCUIT 6 t V0L8-1, vOL8-2
VCC IPL 100t2 VR
LI 10V
- (HIGH SPEED PLAY) "
11 17 'vtutt-t
n7 #OL8-2
‘LC TA7780BN . TA7780BN
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TEST CIRCUIT 7 t VOLT
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J 6 17 Ci2 Von
TA7780BN
TEST CIRCUIT 9
t V0L20
I 20m va
C] 10v
17 9 VOL m
TA77BOBN
TEST CIRCUIT 8 ' VOL9
ICM 1000. Wt
TA7780BN
TEST CIRCUIT 10 t Vs(Aso)
Vs (A50)
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TA7780BN
OSC I LLOSCOPE
TEST CIRCUIT ll t V0L19
Vcc 119 4.7m VR
Cl 10V
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TA77808N
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APPLICATION SYSTEM CHART
PLAY -, H
_ PLUNGER
PLAY PULSE .H I
te; CAPSTAN MOTOR
PRA g REEL MOTOR
REV ts
1C HIGH SPEED PLAY 2 A80 OUT
tQljeltfF_lttlp_lti, f-----, iF-see-
STOP REV F.F PAUSE
REW PLAY REC AMP.STAGE
KEY INPUTS REC/PLAY.MUTING
LED etc
INFORMATION OF APPLICATION SYSTEM
The PRA IC is a particular Programmable ROM Array. That deals with the command signals
from the key Input section, and adjusts the timing of that six output at the same time.
Then the PRA IC sends each of signals for the TA7780BN.
The TA778OBN, once more, deals with these signals more or less, and directly can drive
IIN, CM and PL of a tape recorder mechanism without external driver circuit.
In operating RM, this Item keeps on generating the ASO signal. As RM stops, this signal
stops. Therefore, as the ASO signal is fed to the PRA IC, this system detects a tape
For example, this signal ls fed to the RESET terminal, which is the timer circuit within
the PRA. So, this signal stopping at a tape end, the timer circuit starts operating.
Then, with delay constantly, it ls possible to set up the next operation, auto reverse,'
or auto stop, and so on.
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=34 TOSHIBA”:
PLAY IN
SYSTEM CHART
RM_IN(:>—
17 VCC
..._.__-.... ._...___..,
PLAY TORQUE
—-®—)W—¥
—*C>vwfi;
hy'ld GHHJS HDIH
HIGH SPEED
% CHARGE
1:: f6)
M STARTER
(5 CM START IN
TORQUE ADJ .
PLC CM H-SW
OUT OUT LOGIC
ASO PULSE OUT
THERMAL SHUT
DOWN CIRCUIT
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APPLICATION INFORMATION
(1) Logic Circuit and Driver Circuit
The relations between each of inputs and each of outputs
1-1 PL OUT
The relation between this output and the input of PLAY PULSE is one-to-one, only,
has logical negation.
1-2 PLC OUT
In case that the input of REV is "L" and the Input of PLAY IN is "H", this output
has "L".
Usually in PL starting, it is qulck1y-driven by large drive current_momently,
and afterward, the current reduces, is maintained. This large drive current
flows from PL OUT, and the maintained current flows from PLC OUT. The PLC OUT
current Is adjustable, as the external resistance (220n) changes.
1-3 CM OUT
In case that any inputs of those, PLAY IN, arir IN and RN" IN are applied, CM OUT
has "L".
1-4 RN OUT and RN OUT
INPUT CONDITION OUTPUT
FUNCTION - HIGH SPEED
PLAY IN RM+IN RM m + -
PLAY IN RM OUT RM OUT
F.F I, H L 10.9V 0.26V
REW H L 0.26V 10.9V
PLAY . H H L v® + 0.8V 0.2v
F w D HIGH SPEED
( OR AR ) PLAY H H L H V®+0.8V 0.2V
PLAY PLAY H I, H I, 0.2V V® + 0.8V
REVERSE HIGH SPEED
( ) PLAY H L H H 0.2V V®+0.8V
* Each of voltages is measured for voltage applied Co RN in following
of ELECTRIC CHARACTERISTIC item;
condition
at Normal Speed t
lat High Speed t
in the condition of Voltage Applied to RM (1)
in the condition of Voltage Applied to RN (PLAY HIGH SPEED)
(Note) It is necessary not to make both of RM+ IN and RM_ IN "H". In case that
those have "H" at the same time, large current flows into the H-Sw circuit,
then often destroies this IC.
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1-5 REV IN
In ease that the input of REV IN Is "H", PLC OUT is forced to cut off momently.
As this. is turned off PL for a moment, it is useful for an auto reverse mechanism
In the Forward/Reverse change.
(2) B-MI Circuit
Fig.1 shows the principle. At the FF
or REW mode, Q34 ls turned on, and Q45
is turned off. Q45 is turned on at
PLAY mode, Its base voltage is changed
by the PLAY mode condition (Normal
Speed PLAY or High Speed PLAY).
The circuit under those transistors is,
what is called, II-SH configuration.
1236N37,tl38N41 and RN is situated as
"R" shape, therefore it ls named thus.
The direction of RM drive current is
as following;
at Forward mode t Q36"RM-*Q37
at Reverse mode t Q41-tRM-tQ38
This chan.ge ls controlled by the H-SH LOGIC of Inner circuit. And this H-SU
circuit contains the ASO(Auto Shut Off) pulse generator circuit.
(3) Torque Change Circuit
High speed PLAY is mainly used for the high speed dubbing of the double cassette tape
recorder. Fig.2 shows the equivalent circuit.
[In case of the Forward mode.]
3-1 When the High Speed PLAY SH is turned on, the terminal pin 14 has a voltage which
corresponds to that of the terminal pin 23 . Therefore the applied voltage of the
RM is given by,
I v14-v12 I=V23+VBE-2VCE(sat)=V23+0.6V (o IRM=40mA)
When the Normal Speed PLAY SW ls turned on, the applied voltage is given by,
I Vl4-V12 I:V1+VBE-2VCE(sat)=V1+O.6V (o Inm=40mA)
In proportion as temperature tises this applied voltage rises because of the VBE
temperature characteristic. This characteristic compensates the temperature
characteristic of the RN torque.
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HIGH SPEED PLAY VCC
TORQUE ADJ.
Q49 PLAY TORQUE
1kf1 cr., l
Puyi inmu SPEED PLAY
Fig. 3
Fig. 2
The establishment of 23 (or 1 ) pin's voltage.
In ease of the potentiometer is used, it is necessary to stabilize the applied
voltage by the zener diode as shown in Fig.3. Because, It ls delicate for the
regulation of the supply voltage. And, it is possible to apply the regulated
voltage directly.
In case of the High Speed PLAY mode ls not used.
It is necessary to connect the terminal pin 23 to GND line or the terminal pin 1 .
(Don't open this terminal.) Because, the Base of the transistor Q49 is connected
to the VCC line through the resistance R54, so the reverse current flbws from the
Emitter of the transistor Q47 to the Base of that, and then the voltage of it's
Collector Is not to be followed by the voltage of the terminal pin 1 .
And, when the High Speed PLAY mode is used, it is necessary to set up the
potential difference between the terminal pin 1 and pin 23 under 5V as same
reason.
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3-4 RN Current ( IRM) and Torque Voltage (V1, V23)
It ls necessary to satisfy next equation. =
V1 (or V23) 2(0. 454/K). -IRM+O. 76V+(0. 017XVcc)
K is changed by the value of IRM. K=6O ti? 1RN=40irut
K=45 (? IRN=100nA
K=20 (il Igm=150mA
When the Torque Voltage is under this value, pulse noise from the Capstan Motor
and power sourée ripple appears on the terminal pin 13 , and this causes ASO
circuit malfunction.
And besides, don't set up this voltage under Ill.
(4) ASO Amplifier and Comparator
The pulse signal which is' generated by the RM turning appears on the terminal
pin 13 , and it is transmitted to the terminal pin 18 by the external condenser
CIN. Then this pulse signal is amplified by the ASO Amplifier and is done the
waveform shaping by the Comparator. The terminal pin 20 is the terminal of
this pulse s:i.gnal's output. Therefore, It is possible to notice what the RN
stops or not by the presence of this pulse signal. (Tape end detection.)
Fig. A shows the equivalent circuit.
4.6V C)
TTEE}_'
us I.S
CIN u.
m (iF-di-it---- a;
PULSE OUT lOuF
CaNso OUT
e-lint
4-1 It is possible to adjust the voltage gain of this amplifier by the external
Fig. 4
resistance RNF.
At RNF=56Q, ASO sensitivity is about -56dBV (1.58mVrms). When RNF ls over 5000,
this amplifier oscillates, so use it under SOOSL
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4-2 Low frequency characteristic of this amplifier ls determined by (GIN, R91HR92)
and (CNF, RNF, R96). If CIN is too small, it will easily pick up ripple of the
constant-voltage regurated power supply (4.6V). In this case', connect the
by-pass condenser between the terminal pin 24 and GND line.
High frequency characteristic is determined by the interhal condenser C1, and the
Rollioff frequency is about 45kHz.
4-3 The transistor Q109 is switched by the input pulse signal. And the base voltage
of the transistor Qlll is about 2.95V, therefore, if the collector voltage of
the transistor Q109 is under 2.25V, the transistor Q111 turns on and then the
transistor Q115 turns off. So, ASO out (pin 20 ) ls "H". On the other hand,
when the collector voltage of the transistor Q109 is over 2.25V, ASO out is "L".
This ASO output signal is used as the reset signal for the counter of the PRA IC.
Therefore, if the RN is stopped compulsorily at the tape end, the mechanism
becomes the stop condition because of this reset signal disappearance.
(5) CH Starter end CM START IN
5-1 CM Starter
In throwing in supply voltage, this FOR CM
circuit operates CM for a period,
then it ls possible to wind up a
loose tape. This period is
determined by the CR-time constant.
t = -CR-In(1 - 'hy-di'-)
And in cutting off supply voltage, 'CM Fi 5
this circuit operates for a period. START IN g.
5-2 In case that the 1eVe1 of the terminal
pin 16 is "L", it is capable to operate
CM independently.
This function is in spite of the control
pulse, PLAY IN, ni' IN and RM" IN.
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5-3 CM START IN
As connected as Fig.5, in case that
the level of the terminal pin 15 is
"H", It is possible to operate CM.
In operating directly CM with CH out
( 9 pin), extra pulse, which ls
generated by CM,occasiona11y causes
the malfunction of the ASO circuit.
In this case, as connected to
I external transistor as Fig.6, it ls CONTROL SIGNAL
' Vcapable to divide two GND. So, it Fig. 6
i is possible to Improve that. In this connection, it is also possible to control
the CM by the terminal pin 15 independently.
(6) Thermal Shut Down Circuit
This Item Includes the mechanism driver circuits. As a mechanical condition
causes one motor or more to lock compulsorily, the large current makes the
temperature of this chip be up extremely. In result, this causes the leak current
of PN-dunctton increase, then the temperature is up more and more. Finally the
I thermal run-away takes place at this item. Therefore, the Thermal Shut Down
Circuit prevents it from doing thermal run-away. In case that the temperature of
chip gets up about 160''C, this circuit cuts off the drivers for RR, CM and Plunger.
(7) Power Consumption
i It is necessary to take care the power consumption in this IC, in order to control
T the large current.
PD expression.
PD = PD(Q) + PD(CM) + PD(PLc) g
PD(Q) = ICCQ X Vcc '
PD(RM) = IRM x (vcc- I1rllrrv12l) A moo
t 1000 -
PD(CM) = ICM x VCE(sat. Q11) v
PD(PLC) = IPLc x VCE(sat. Q14) 5 720
(Note) This PD is larger at PLAY/High Speed PLAY am -
than at F.F/REW. And this is larger at
PLAY than at High Speed PLAY. 0 2'5 50 75 160 125 150
I V14-V12 I =V1+0.6V Ta ('0)
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'ir/ - 0 ,7 - . _ _ - _I.I_L71_..ll__.- WW. - " _ w--'"'"'''""],?''':."----'
'ii-", 9097247 OSHIBA. E ECTRONIC 02E 76 4 D T-77-21
l "''T7rTrrTT='rcr'TsTT-rcCrr, T797777: 17-7777“: "TC - - - _ -T-.= _7_7_'7 ..._._ "“7" L1C.'LrC,
ICCQ - VCC VOL7 - IPLC
t ALL OUTPUTS ARE OPENED g Vcc=12V
, ALL INPUTS = o i'ea", " = 4 v
8% 4 ./ =...- t, 2.0
B o H h
trt 8 g a '
E... 2 §> 1.0 ....-L---- .----
ii til ' f"
0 4 8 12 I, o 40 so 120 160
SUPPLY VOLTAGE Vcc (v) PLCOUT CURRENT Ich (mA)
V0L9 - ICM V0L12 - IRM _
3.0 1.2
i ti Vcc=12V Vcc=12V
t'r:"a," V6 == " g v3 = 3.5V
t',., 2.0 S 0.8
<55 8’;
E g - ...-' a N
E; _........------" a 3
a 1.0 I g o 0.4
-..--- _
S e--- g - " .----'
J? -.-'"
o a _,,,...-----'"''"'-
o 100 mo 300 . 400 o 50 100 150 200
CMOUT CURRENT ICM (mA) RM CURRENT IRM (mA)
V0L8 - IPL (Vcc-V14) - IBM
1.5 3.0
g VCC=12V m Vcc=12V
5 v6 = AY E v3 = 3.5V
' 1.0 8>
Ev g",)
E - H;
m " a I
t ti / " ii o
m> 0.5 -,,.--'" 2;) 1.0 -
0 mo 200 300 400 00 50 100 150 200
PLOUT CURRENT IPI, (m) RM CURRENT IRM (mA)
c,',Tlr 4': AIT AUDIO LINEAR 1Crrarar.
. -771-
_-.__,_ ., _ - _ A - _ - _.-.
9097247 TOSHIBA_ ELECTRONIC ’”"
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(''iii'ii' vii/i/_/il' ".vacccs_"
EM VOLTAGE v14 (v)
INPUT CUREENT(®.®.@,©.® Pin) Im-1 (m)
V14, (vu-vi, 23) - IRM
vcc=12v
lri,2r--4.3Y
V3=3.5V
v6, 2=3.5v
(V14‘V1.23)
50 1 0 150 2000
RM CURRENT IRM (mA)
1IN-1rlIN-2 - VIN
Vcc= 12V
@Pin /'"
/(s,o Pin/
/2ss''''''"
/ /€®© Pin
st''.."..--''"'"
2 4. 6- 8
INPUT VOLTAGE VIN (v)
BM VOLTAGE (vu—vl, 2;) (V)
INPUT CURRENT (©Pin) Im_2 (m)
mTDSHIBA
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