Marktech TB62706BN, TB62706BF Datasheet
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A Bi-CMOSA Bi-CMOS
A Bi-CMOS
A Bi-CMOSA Bi-CMOS
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TB62706BN/BF
16 Bit Constant Current LED Driver with Shift
Register and Latch Functions
Product Description:
The TB62706BN/BF is specifically designed for
LED display applications. The Bi-CMOS device has
16 Bi-polar constant current output channels and
includes CMOS shift register and latch functions.
The LED drive current is programmed by the
installation of a single resistor per device. Current
is programmable from 5-90mA and is held constant
across all 16 outputs effectively compensating for
the inherent circuit and component variables which
affect the brightness of the LEDs.
Features:
• 16 Constant Current Output Channels
• Current Programmable from 5-90mA
• 5V CMOS Compatible Inputs
• 15MHz Max Clock Frequency (Cascade)
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TB62706BN
SDIP24-P-300
TB62706BF
SSOP24-P-300B
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Weight: 1.22g(typ)
Weight: 0.32g(typ)
Block Diagram:
marktech
optoelectronics
For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.
556
Toll Free: (800) 98-4LEDS
120 Broadway • Menands, New York 12204
• Fax: (518) 432-7454
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A Bi-CMOSA Bi-CMOS
A Bi-CMOS
A Bi-CMOSA Bi-CMOS
Constant CurConstant Cur
Constant Cur
Constant CurConstant Cur
TB62706BN/BF
Timing Diagram:
Latches are:
1. Level Sesitive
2. Not edge sensitive
3. Not clock synchronous
4. Passing Data when LATCH is H
5. Hold Data when LATCH is L
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All Outputs are OFF when ENABLE is H and ON when ENABLE is L.
Terminal Description & Pin Out:
PIN No. PIN NAME FUNCTION
1 GND GND term inal for control lo gic .
2 SERIAL-IN Input terminal of a serial-data for shift-register
3 CLOCK Iinput terminal of a clock for data shift to up-edge.
4LATCH
5~20
21 ENABLE
22 SERIAL-OUT Output terminal of a serial-data for next SERIAL-IN terminal.
23 R-EX T Input terminal o f connects with a re sis ter for to set up al l output current.
24 VDD 5V Supply voltage terminal
OUT0~15 Output termi nals
marktech
optoelectronics
For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.
Input terminal of a data strobe. Latches passes data with "H" level input of
LATCH-terminal, and hold data with "L" level input.
Input terminal of output enable. All outputs (OUT~15) do off with "H" level input
of ENABLE-terminal, and do on with "L" level input.
120 Broadway • Menands, New York 12204
Toll Free: (800) 98-4LEDS
• Fax: (518) 432-7454
557
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A Bi-CMOSA Bi-CMOS
A Bi-CMOS
A Bi-CMOSA Bi-CMOS
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Constant Cur
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TB62706BN/BF
Truth Table:
CLOCK LATCH ENABLE S ERIAL-IN OUT0 OUT5 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
Equivalent Circuit of Inputs and Outputs:
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Maximum Ratings:
CHARACTER SYMBOL RATING UNIT
Supply Voltage VDD 0~7.0 V
Input Voltage VIN -0.4~VDD + 0.4 V
Output Cu rrent IOUT +90 mA
Output Voltage VOUT -0.5~+17.0 V
Clock Frequency FCLK 15 MHz
GND Terminal Current IGND 1440 mA
Power Dissipation PD
Thermal Resistance Rth(j-a)
Operating Temperature Topr -40~+85 °C
Storage Temperature Tstg -55~+150 °C
marktech
optoelectronics
For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.
558
1.78 (BN type: ON PCB,Ta=25°C)
1.00 (BF type: ON PCB,Ta=25°C)
70 (BN type: On PCB)
120 (BF type: On PCB)
120 Broadway • Menands, New York 12204
Toll Free: (800) 98-4LEDS
W
°C/W
• Fax: (518) 432-7454
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