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TD6347
CONVENTIONAL TIMER
TOSHIBA TD6347F
TOSHIBA BIPOLAR DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TD6347F
CONVENTIONAL TIMER
The TD6347F is an automotive Fl. monolithic timer. It is a
Iong-term timer superior in voltage and temperature
characteristics. It produces an NPN transistor open-
collector output.
The IC has three inputs : start/reset and two modes, so
that it can be used in a variety of application fields.
FEATURES
0 Small standby current : 1mA
SSOP10-P-225-1.00
Weight : 0.10g (Typ.)
o 3 inputs : start/reset and two modes
0 Power-on reset function incorporated
0 Good voltage characteristics : i0.05%/V
0 Good temperature characteristics : i0.02%/°C
0 Output current/output withstand voltage : 250mA/30V
0 Small SSOP-10 pin
BLOCK DIAGRAM AND PIN LAYOUT
215 or 211
DIVIDER
FILTER OSC Z: v c
961001EBA2
O TOSHIBA 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 specified
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.
tt The products described in this document are subject to foreign exchange and foreign trade control laws.
0 The information contained herein is presented only as a guide for the apflications of our products. No responsibility is assumed by TOSHIBA
CORPORATION for any infringements of intellectual property or other rights 0 the third parties which may result from its use. No license is granted
by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others.
o T e information contained herein is subject to change without notice.
1998-02-10 1/6
TOSHIBA TD6347F
PIN DESCRIPTION
PIN No. SYMBOL DESCRIPTION
1 NC Not connected
Connected to the input switch. When this pin is grounded, the IC accepts the
input, and the output is reversed. The input circuit is as follows :
2 Dll - E CC
Dll 'ii'
- When this pin is grounded, the IC is reset. The input circuit construction is
3 Dlil ___.-
the same as that of DI1.
When the input switch is connected and this pin is grounded, the output
turns off. When this pin is connected to Vcc, the output turns on. The input
circuit is as follows : Vcc
5 RT The resistor for basic clock oscillation is connected between this pin and pin
6 GND Grounded
The capacitor for basic clock oscillation is connected to this pin. The clock
frequency T is determined by external resistor R and capacitor C as follows :
7 CT T (ms) =1.75C(/1F) R(kQ)
The time constant of the input filter consisting of W, W, and BB is four
times the basic clock period.
Output pin. The circuit is shown at right.
Timer time select pin. When this pin is open, the timer time is 32768 (215)
times the clock period. When it is grounded, the timer time is 2048 (2”)times
the clock period. The input circuit is as follows :
9 SEL i:
10 VCC Power supply pin
1998-02-10 2/6
TOSHIBA TD6347F
TRUTH TABLE
(1) Input Switch
DI1 DI2 DI3
l L H H or M Inversion
H H M I H ON
H H L OFF
don't care L don't care OFF
Output
(2) Timer Time
SEL Timer Time
H 215 TX
L 211 TX
X T-- 1.75 CR
TIMING CHART
TLI UTLI ‘_I
DI? I -z.
SEL -l r—
OUT off off T
215 T 211 T 211 T 211 T 215 T
1998-02-10 3/6
TOSHIBA TD6347F
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VCC 30 V
Output Current 'OUT 250 mA
Output Voltage VOUT 30 V
Operating Voltage Vopr 5 to 16 V
Power Dissipation PD 400 mW
Operating Temperature Top, -40 to 85 °C
Storage Temperature Tstg -55 to 150 "C
ELECTRICAL CHARACTERISTICS (Ta = 25°C, Vcc = 12V)
CHARACTERISTIC SYMBOL PIN CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Current Consumption ICC VCC - OUT=OFF - - 1.0 mA
W - - 5.4 6 6.6
W - - 5.4 6 6.6
In t Threshold Volta e V V
pu g TH DB - START mode 8.1 9 9.9
- STOP mode 2.7 3 3.3
15Tf - VIL = 0V - - - 1.0
Input Current I” DI2 - VIL=0V - - -1.0 mA
DI3 - V|L=0V - - -0.25
IIH - V|H=12V - - 0.25
Output Voltage VOL OUT - IOL = 200mA - - 1.3 V
Output Leakage Current ILEAK - VOUT=30V - - 100 pA
Input Current IIN CT - VIN =1 to 4V - - Al #A
Output Voltage VOH RT - IOH = 50pA 3.5 3.9 4.3 V
VOL IOL = 50PA - - 0.3
1998-02-10 4/6
TOSHIBA TD6347F
EXAMPLE OF APPLICATION CIRCUIT
(1) 15-minute timer(using Dl3)
to <9 4
BATTERY
STOP o
Timertime=215X1.75xCxR
(2) 56-second timer(using t5TT)
T D 6 3 4 7 F
2 Q) Qt) 5 O.) 7 8 9
165kQ .)rd. OUT BATTERY
START/STOPf t.2. t t
L) F; T3 '5'
o . O GND
Timertime=211x1.75xCxR
X If the IC is used with a regulated power supply which is free from surge voltage, the
CR combination is unnecessary.
.yy(y..4 For negative surge absorption
1998-02-10 5/6
TOSHIBA TD6347F
OUTLINE DRAWING
SSOP10-P-225-1.00 Unit : mm
-pHllqlqlT'-'-''e"l"''"''-''"'"" it
N tn. '.G"
C)
ld H CL.,-..,.,..,.-...,, It
OBTYP fl 5' 04+01
Jr-""-''-''- =.:"'co.2o@
5.7MAX
cu. ti U'?,
is 51 Si'
_ - cu---------'--'-''-"-,': “ g ,
L501 v.8 ir-- l
ci = =th525:eth2
Weight : 0.10g (Typ.)
1998-02-10 6/6
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