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Número de pieza | TB62706BF | |
Descripción | 16BIT SHIFT REGISTER / LATCHES & CONSTANT CURRENT DRIVERS | |
Fabricantes | Toshiba | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de TB62706BF (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
No Preview Available ! TB62706BN/BF
TOSHIBA Bi−CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC
TB62706BN,TB62706BF
16BIT SHIFT REGISTER, LATCHES & CONSTANT CURRENT DRIVERS
The TB62706BN, TB62706BF is specifically designed for LED
and LED DISPLAY constant current drivers.
This constant current output circuits is able to set up external
resistor (IOUT = 5~90 mA). (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.
FEATURES
Constant Current Output
: Can set up all output current
with one resister for 5 to 90
mA.
Maximum Clock Frequency : fCLK = 15 (MHz) (Cascade
Connected Operate, Topr =
25°C)
5 V C−MOS Compatible Input
Package : SDIP24−P−300−1.78~1.778mmPitch~ (TB62706BN)
SSOP24−P−300−1.00B~1.0mmPitch~ (TB62706BF)
Constant Output Current Matchong:
OUTPUT−GND
VOLTAGE
≥ 0.4 V
≥ 0.7 V
CURRENT
MATCHING
±6.0%
±6.0%
OUTPUT
CURRENT
5~40 mA
5~90 mA
Note: TB62706BF can be used under limited PD
(PD ≤ 1.04 W, with PCB)
(Note)
TB62706BN
TB62706BF
Weight
SDIP24-P-300-1.78 : 1.22 g (typ.)
SSOP24-P-300-1.00B : 0.32 g (typ.)
1 2003-05-14
1 page TB62706BN/BF
ELECTRICAL CHARACTERISTICS (VDD = 5.0 V, Ta = 25°C unless otherwise noted)
CHARACTERISTIC
Input Voltage
"H" Level
"L" Level
Output Leakage Current
Output Voltage
SERIAL−OUT
Output Current 1
Current Skew
Output Current 2
Current Skew
Supply Voltage Regulation
Pull−Up Resistor
Pull−Down Resistor
Supply Current
"OFF"
"ON"
SYMBOL
VIH
VIL
IOH
VOL
VOH
IOL1
IOL2
∆ IOL1
IOL3
IOL4
∆ IOL2
% / VDD
RIN (up)
RIN (down)
IDD (off) 1
IDD (off) 2
IDD (off) 3
IDD (on) 1
IDD (on) 2
TEST
CIR−
CUIT
CONDITION
― Ta = −40~85°C
― Ta = −40~85°C
MIN
0.7
VDD
GND
― VOH = 15.0 V
―
― IOL = 1.0 mA
―
― IOH = −1.0 mA
4.6
― VCE = 0.7 V
― VCE = 0.4 V
REXT = 470 Ω
(Include current
matching)
34.1
33.7
―
IO = 40 mA,
VCE = 0.4 V
― VCE = 1.0 V
― VCE = 0.7 V
REXT = 470 Ω
―
REXT = 250 Ω
(Include current
matching)
64.2
63.8
―
IO = 75 mA,
VCE = 0.7 V
REXT = 250 Ω
―
REXT = 470 Ω,
Ta = −40~85°C
―
―
― ― 150
― ― 100
―
REXT = OPEN,
OUT0 ~ 15 = off
―
― REXT = 470 Ω, OUT0 ~ 15 = off 3.5
― REXT = 250 Ω, OUT0 ~ 15 = off 6.5
― REXT = 470 Ω, OUT0 ~ 15 = on 10.0
― REXT = 250 Ω, OUT0 ~ 15 = on 18.0
TYP.
―
―
―
―
―
40.0
39.5
±1.5
75.5
75.0
±1.5
1.5
300
200
0.6
5.8
10.7
16.0
28.3
MAX
VDD
0.3
VDD
10
0.4
―
45.9
45.3
±6.0
86.8
86.2
±6.0
5.0
600
400
1.2
8.0
15.0
22.0
38.5
UNIT
V
µA
V
mA
%
mA
%
%/V
Ω
Ω
mA
5 2003-05-14
5 Page TB62706BN/BF
[1] Output current (IOUT)
IOUT is set by the enternal resistor (R−EXT) as shown in Fig.1.
[2] Total supply voltage (VLED)
This device can operate 0.4~0.7V (VO).
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 (IC supply voltage)
When the total supply is too high considering the power dissipation of this device, an additional R can
decrease the supply voltage (VO).
[3] Pattern layout
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 2.5 V by switching noise in operation, this device may miss−operate. So we
would lile you to pay attention to pattern layout to minimize inductance.
11 2003-05-14
11 Page |
Páginas | Total 14 Páginas | |
PDF Descargar | [ Datasheet TB62706BF.PDF ] |
Número de pieza | Descripción | Fabricantes |
TB62706BF | 16BIT SHIFT REGISTER / LATCHES & CONSTANT CURRENT DRIVERS | Toshiba |
TB62706BFG | 16BIT SHIFT REGISTER | Toshiba |
TB62706BN | 16BIT SHIFT REGISTER / LATCHES & CONSTANT CURRENT DRIVERS | Toshiba |
TB62706BNG | 16BIT SHIFT REGISTER | Toshiba |
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