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TB62706BFT ?N/a15avai16-bit constant current LED driver with shift register and latch functions.
TB62706BNTOSN/a32avai16-bit constant current LED driver with shift register and latch functions.


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TB62706BF-TB62706BN
16BIT SHIFT REGISTER, LATCHES & CONSTANT CURRENT DRIVERS
TOSHIBA TB62706BN/BF
TOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC
TBti270tiBN, TBti270tiBF
16BIT SHIFT REGISTER, LATCHES & CONSTANT CURRENT DRIVERS
The TB62706BN, TB62706BF is specifically designed for LED TB62706BN
and LED DISPLAY constant current drivers.
This constant current output circuits is able to set up
external resistor (lOUT=5--90mA). (Note)
This Ic is monolithic integrated circuit designed to be used
together with Bi-CMOS process.
The devices consist of 16bit shift register, latch, AND-GATE
and Constant Current Drivers.
SDlP24-P-300-1 .78
TB62706BF
FEATURES
It Constant Current Output : Can set up all output current
with one resister for 5 to
0 Maximum Clock Frequency : fCLK=15 (MHz) (Cascade
Connected Operate,
Topr=250C)
Weight
0 5V C-MOS Compatible Input SDlP24-P-300-1.78 : 1.229 (Typ.)
SSOP24-P-300-1.00B : 0.329 (Typ.)
SSOP24-P-300-1.00B
0 Package : SDlP24-P-300-1.78--1.778mmpitch-- (TB62706BN)
SSOP24-P-300-1.00B--1.0mmpitch-- (TB62706BF)
o Constant Output Current Matchong :
OUTPUT-GND CURRENT
VOLTAGE MATCHING OUTPUT CURRENT
2 0.4V , 6.0% 5~40mA
Lt 0.7V , 6.0% 5--90mA (Note)
(Note) TB62706BF can be used under limited PD!
(PDS1.04W, with PCB)
961001EBA1
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 foreign exchange and foreign trade control 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.
1999-02-16 1/13
TOSHIBA TB62706BN/BF
PIN CONNECTION (Top view)
GND [] 1 24 Cl VDD
SERIAL-IN E 2 23 l R-EXT
CLOCK , 3 22 . SERIAL-OUT
TTCHE 4 21 JW
OUTOI: 5 20 ]ou115
OUT1 E 6 19 ]OUT14
ounE 7 18 Jou113
OUT3 E 8 17 Jou112
OUTAE 9 16 J OUT11
OUTSI: 10 15 jouno
OUTS E 11 14 Jou19
ouTrr 12 13 JOUTB
BLOCK DIAGRAM
OUTO OUTI OUT7
R-EXT o- I-REG.
ENABLE o-tr
LAT-CHO-cts L I - I
sERuu--lNcr-(> D Q D Q ----- D Q OSERIAL-OUT
CLOCK o-iy> , CK , CK - _f" CK
TIMING DIAGRAM
CLOCK [nun-Inu-lun-Inu-lun 5V
I I I I 5V
SERIAL-IN
I I rin E rp I rp I ov
LATCH I I I I I I I III 5V
I I I I I I I I 0V
I I I I I I I I 5V
ENABLE I I I I I I I I
l l l l l l l l l-l ov
I I I I I I I I I I
OUTO I I I I I I I I I I
I I I l I I l I 8ff
OUT1 I I I I I I I I n
I I I I I I I I Off
l l l l I l l I I I On
0UT3 I I I l I I I I I t Off
I I i I i I i i I I I
I I I I I I I I I I I
I I I I I I I I I I I
OUT? I I I I I I I I I
I I I I I I I I I fly
SERIAL-OUT , ”/1 1/ (" W/AI I ' 0V
(Note) Latches are level sensitive, not rising edges sensitive and not syncronus CLOCK.
Input of LATCH-terminal to H Level, data passes latches, and input to L level, data
hold latches.
Input of ENABLE-terminal to H level, all output (OUTO~15) do off.
1999-02-1 6 2/13
TOSHIBA TB62706BN/BF
TERMINAL DISCRIPTION
PIN No. PIN NAME FUNCTION
1 GND GND terminal for control logic.
2 SERIAL-IN Input terminal of a serial-data for shift-register.
3 CLOCK Input terminal of a clock for data shift to up-edge.
4 LAT-CH Input terminal of a data strobe. Latches passes data with "H" level input of
Lrttlq-terminal, and hold data with "L" level input.
5--20 OUT-tr-Y Output terminals.
Input terminal of output enable. All outputs (OUTO--15) do off with "H"
level input of tTTh"'lTLtf-terminal, and do on with "L'' level input.
22 SERIAL-OUT Output terminal of a serial-data for next SERIAL-IN terminal.
21 ENABLE
23 R-EXT Input terminal of connects with a resister for to set up all output current.
24 VDD 5V Supply voltage terminal.
TRUTH TABLE
CLOCK LATCH ENABLE SERIAL-IN OUTO ... OUTS ... OUT7 SERIAL-OUT
UP H L Dn Dn ... Dn-7 ... Dn-15 Dn-15
UP L L Dn +1 No change Dn-14
UP H L Dn+2 Dn+2 ... Dn-5 ... Dn-13 Dn-13
DOWN X L Dn+3 Dn+2 ... Dn-5 ... Dn-13 Dn-13
DOWN X H Dn + 3 Off Dn-13
(Note) OUTO~15=on in case of Dn=H level and OUTO--15=off in case of Dn=L
level.
A resistor is connected with R-EXT and GND accompanied with outside,
and it is necessary that a correct power supply voltage is supplied.
EQUIVALENT CIRCUIT OF INPUTS AND OUTPUTS
1. ENABLE terminal 2. LATCH terminal
voDty- vryrrcy-
EhuiLEtCy-. W4 o-H-i-f
GND GNDC
3. CLOCK, SERIAL-IN termina 4. SERIAL-OUT terminal
VDD L? VDD
CLOCK, LATCH DATA
T, SERIAL-OUT
SERIAL-IN
GND L? GND
1999-02-1 6 3/13
TOSHIBA TB62706BN/BF
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VDD 0--7.0 V
Input Voltage VIN - 0.4--VDD + 0.4 V
Output Current IOUT 90 mA
Output Voltage VOUT - o.5~17.o v
Clock Frequency fCK 15 MHz
GND Terminal Current IGND 1440 mA
1.78 (BN-type : ON PCB, Ta=25°C)
Power Dissipation PD 1.00 (BF-type : ON PCB, Ta=25°C) W
. BN : 70 (BN-type : ON PCB) o
Tharmal Resistance Rthg.a) BF . 120 (BF-type . ON PCB) C/W
Operating Temperature Topr -40--85 "C
Storage Temperature Tstg - sr-Iso "C
(Note) BN-type : Ambient temperature deleted above 25°C in the proportion of 14.2mW/°C
BF-type : Ambient temperature deleted above 25°C in the proportion of 8.3mW/°C
RECOMMENDED OPERATING CONDITION (Ta = -40--85oc unless otherwise noted)
CHARACTERISTIC SYMBOL CONDITION MIN. TYP. MAX. UNIT
Supply Voltage VDD - 4.5 5.0 5.5 V
Output Voltage VOUT - - - 15.0 V
Io OUTn, DC 1 circuit 5 - 88
Output Current IOH SERIAL-OUT - - 1.0 mA
IOL SERIAL-OUT - - - 1.0
VIH - V“ - V%%
Input Voltage DD + . V
VIL - - 0 3 - 0.3
LATCH Pulse Width tw LAT 100 - - ns
CLOCK Pulse Width tw CLK 50 - - ns
ENABLE Pulse Width tw EN 4500 - - ns
Set-Up Time for DATA tsetupm) VDD=4.5--5.5V 60 - - ns
Hold Time for DATA thold (D) 20 - - ns
Set-Up Time for LATCH tsetup(L) 100 - - ns
Hold Time for ENABLE thold (L) 60 - - ns
Clock Frequency fCLK Cascade operation - - 10.0 MHz
Power Dissipation PD Ta =85°C (BN-type) - - 0.92 W
Ta =85°C (BF-type) - - 0.50
1999-02-1 6 4/13
TOSHIBA TB62706BN/BF
ELECTRICAL CHARACTERISTICS (VDD = 5.0V, Ta = 25°C unless otherwise noted)
CHARACTERISTIC SYMBOL CIR- CONDITION MIN. TYP. MAX. UNIT
"H" Level V Ta.-.. 40~85°C 0.7 V
Input IH - VDD DD
Voltage " " o 0.3
L Level VIL - Ta = -40--85 C GND -
Output Leakage Current 'OH - VOH =15.0V - - 10 PA
V - I =1.0 A - - 0.4
Output SERIAL-OUT OL OL m v
Voltage VOH - 'OH = -1.0mA 4.6 - -
IOL1 - VCE = 0.7V REXT = 4700 34.1 40.0 45.9
Output Current 1 (Include current) mA
IOL2 - VCE = 0.4V matching 33.7 39.5 45.3
IO =40mA,
- = - + + 0
Current Skew AIOL1 VCE = 0.4V REXT 4700 - 1.5 - 6.0 hl
IOL3 - VCE =0.7V REXT= 2509 64.2 75.5 86.8
Output Current 2 (Include current) mA
IOL4 - VCE =0.41/ matching 63.8 75.0 86.2
Io = 75mA,
- = - i . i . "
Current Skew AIOLZ VCE =0.7V REXT 2500 1 5 6 0 hl
Supply Voltage 0 - - o 0
Regulation 4; /VDD - REXT_4700, Ta= 40 85 c - 1.5 5.0 hl /V
PuII-Up Resistor RIN (up) - - 150 300 600 0
Pull-Down Resistor RIN (down) - - 100 200 400 n
IDD (off)1 - REXT=OPEN, OUTI--8=off - 0.6 1.2
S I "OFF" IDD (off) 2 - REXT =4700, OUT1--8 = off 3.5 5.8 8.0
thfezt IDD (off) 3 - REXT=2500, OUT1--8=off 6.5 10.7 15.0 mA
"ON" IDD (on)1 - REXT=4700, OUTI--8=on 10.0 16.0 22.0
IDD (on) 2 - REXT = 2500, OUTI--8 = on 18.0 28.3 38.5
1999-02-1 6 5/13
TOSHIBA TB62706BN/BF
SWITCHING CHARACTERISTICS (Ta =25°C unless otherwise noted)
CHARACTERISTIC SYMBOL TcElaT CONDITION MIN. TYP. MAX. UNIT
. CLK-OUTn - 1200 1500
'lro.pag_a.tion LAT-CH-OU-rn - 1200 1500
Delay Time -tN7iTrLtu5TJTh- tPLH - - 1200 1500 ns
CL'' to "H")
CLK-SOUT - 30 70
. CLK-OUTn - 700 1000
'lryagetion W-m v =5.0v - 700 1000
Delay Time EN"ABT1-tTyt7tr5 tPHL - VDD_ - 700 1000 ns
("H" to ML") CE - 0.4V
CLK-SOUT VIH =VDD - 30 70
CLK t ' CLK - v =GND - 20 30 ns
Pulse Width 'ir/TTC-pl'" C,' 5:: LAT - RELXT=4700 - IO 25 ns
Set-up Time L-H tsetup(L) VL=3.OV - 25 50 ns
for LATCH H-L tsetupm - RL=650 - 25 50 ns
Hold Time L-H thold (L) CL=10.5PF - 0 15 ns
for LATCH H-L thold (c) - - 0 15 ns
Maximum CLOCK Rise Time tr - - - 10 ,us
Maximum CLOCK Fall Time tf - - - 10 /rs
Output Rise Time tor - 150 300 600 ns
Output Fall Time tof - 150 300 600 ns
1999-02-16 6/13
TOSHIBA
TEST CIRCUIT
DC characteristic
OUTO D-o
o-C. ENABLE 5 '
o-t CLOCK
'll-dl" :
o-C) LATCH OUT15 D-o
SERIAL-IN SERIAL-OUT D-o
VIL, VIH
R-EXT GND
AC characteristic
VIH. VIL - .
- -C ENABLE .
SW-MATRIX C CLOCK ;
_ LAT-CH OUT15
-C SERIAL-IN SERIAL-OUT
R-EXT GND
PRECAUTIONS for USING
TB62706BN/BF
Utmost care is necessary in the design of the output line, VCC (VDD) and GND line since IC may be
destroyed due to short-circuit between outputs, air contamination fault, or fault by improper
grounding.
1999-02-1 6 7/13
TOSHIBA TB62706BN/BF
TIMING WAVEFORM
1. CLOCK-SERIAL OUT, OUTn
90% 90%
CLOCK 50% 50%
tsetup(C) thold (c)
SERIAL Pl 50% 50% I
SERIAL OUT,
OUTn (current)
tpLH tpHL
2. CLOCK-LATCH
CLOCK / 50% \ 50%
SERIAL IN X hold (L) X
-Tl "L" level=DATA HOLD
LATCH \50%
tsetup (L)
3. ENAB LE-OUTn
ENABLE 50% ii 50%
tpLH tpm,
OUTn 50% 50%
1999-02-1 6 8/13
TOSHIBA
IOUT - Duty Cycle (TB62706BN)
V = 2.0 V
fi. o ( )
VDD = 5V
Tj = 120°C (Max.)
8bit Active
Ta -- 25°C
0 20 40 60 80 100
Duty Cycle (%)
IOUT - Duty Cycle (TB62706BN)
vo = 0.7 (V)
vo = 1.0 (V)
3 vo = 2.0 (V)
VDD = 5V
Tj=120°C (Max.)
8bit Active
Ta -- 60°C
0 20 40 60 80 100
Duty Cycle (%)
IOUT - Duty Cycle (TB62706BN)
vo=0.7 (V)
(mA/bi!)
vo=1.o (V)
VDD = 5V
Tj=120°C (Max.)
8bit Active
Ta -- 25°C
vo = 2.0 (V)
0 20 40 60 80 100
Duty Cycle (%)
(mA / bit)
(mA / bit)
(mA / bit)
T362706BN/BF
IOUT - Duty Cycle (TB62706BF)
vo=0.7 (V)
Vo=1.0 (V)
VDD=5V
Tj= 120°C (Max.)
8bit Active
Ta =25°C
0 20 40 60 80 100
Duty Cycle (%)
IOUT - Duty Cycle (TB62706BF)
v0 = 0.7 (v)
vo =1.0 (v)
VDD = 5V
Tj=120°C (Max.)
8bit Active
V =2.0 V
Ta -- 60°C C) ( )
20 4O 60 80 100
Duty Cycle (%)
IOUT - Duty Cycle (TB62706BF)
vo = 0.7 (V)
VDD = 5V
Tj=120°C (Max.)
8bit Active
Ta = 25°C vo = 2.0 (V)
vo=1.o (v)
20 40 60 80 100
Duty Cycle (%)
1999-02-16 9/13
TOSHIBA TB62706BN/BF
PD - Ta (TB62706BN)
PD - Ta (TB62706BF)
(Note)
BF Type SSOP24
On Glass Epoxy PCB
PD (W)
PD (W)
0 25 50 75 100 125 150
Ta (°C)
LED DRIVER TB6270X SERIES APPLICATION NOTE
REXT - IOUT
IOUT = (1 .26/ REXT in)) x 14.7
IOUT (mA/bit)
100 200 300 500 1000 2,0003,000 5,000
R-EXT (Q)
Fig. 1
1999-02-1 6 10/13
TOSHIBA
[1] Output current (IOUT)
TB62706BN/BF
IOUT is set by the enternal resistor (R-EXT) as shown in Fig.1.
[2]Tota| supply voltage (VLED)
This device can operate 0.4--0.7V (V0).
When a higher voltage is input to the device, the excess voltage is consumed inside the device, that
leads to power dissipation.
In order to minimize power dissipation and loss, we would like to recommend to set the total
supply voltage as shown below,
VLED (total supply voltage)=VCE (Tr Vsat) +Vf(LED Forward voltage)+Vo (lc supply voltage)
When the total supply is too high considering the power dissipation of this device, an additional R
can decrease the supply voltage (V0).
[3] Pattern layout
VLED = 3--4 (V)
f IL // ,
=0 ENABLE OUITO D
--C) CLOCK l
-N.p LATCH l t' R
-(r.) SERIAL-IN OUTI 5 D
R-EXT GND SERIAL-OUT
{j ENABLE OUITO
@ CLOCK l
f‘ - '
v LATCH l
-oC) SERIAL-IN OUT”
R-EXT GND SERIAL-OUT
This device owns only one ground pin that means signal ground pin and power ground pin are
common.
If ground pattern layout contains large inductance and impedance, and the voltage between
ground and LATCH, CLOCK terminals exceeds 2.5V by switching noise in operation, this device may
miss-operate. So we would lile you to pay attention to pattern layout to minimize inductance.
1999-02-16 11/13
TOSHIBA TB62706BN/BF
OUTLINE DRAWING
SDIP24-P-300-1.78 Unit : mm
24 13 Ci,
f-lf-Ir-Ir-lf-Irrelevant"-? d
i)) ea
L..JL_JL.JL_JL.JL.JL.JL..JL~JL.JL.JL_J
h 22.5MAX "
22.0:02
cu., mi
4 l I F g tl.
x " cn
1.221TYP 1.0:0.1 H046i0.1
" V " ,. _ IEMSE
Weight : 1.229 (Typ.)
1999-02-16 12/13
TOSHIBA
OUTLINE DRAWING
SSOP24-P-300-1.00B
24 13 -._..-
RFlRfilRFlfilgFlFlFl " h-
6 OiO 2
8.0i0.3
gag 'rissiupsentrl------'-'-,
1.0TYP
" 13.5MAX wl
H, 13.0i02 wl
I cu. M
40.15 tf
Weight : 0.329 (Typ.)
TB62706BN/BF
Unit : mm
(300mil)
1999-02-1 6 13/13

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