TOSHIB

OSHIB

OSHIBA Bi-CMOS

A Bi-CMOS

Constant Cur

Constant Currrrrrent Interf

ent Interf

ent Interface Dri

ace Dri

ace Drivvvvver

For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.

TB62708N

16 Bit Constant Current LED Source Driver with Shift Register and Latch Functions

Product Description:

The TB62708N is specifically designed for LED display applications. The Bi-CMOS device has
16 Bi-polar constant current output source 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 source outputs
effectively compensating for the inherent
circuit and component variables which affect
the brightness of the LEDs.

Features:

· Current Source Device
· 16 Constant Current Output Channels
· Current Programmable from 5-90mA
· 5V CMOS Compatible Inputs
· 15MHz Max Clock Frequency (Cascade)

Block Diagram:

SDIP30-P-400

TB62708N

Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax:

518.785.4725

Web: www.marktechopto.com | Email: info@marktechopto.com

California Sales Office:

950 South Coast Drive, Suite 265

Costa Mesa, California 92626

Toll Free: 800.984.5337

Fax: 714.850.9314

TOSHIB

OSHIB

OSHIBA Bi-CMOS

A Bi-CMOS

Constant Cur

Constant Currrrrrent Interf

ent Interf

ent Interface Dri

ace Dri

ace Drivvvvver

For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.

TB62708N

Timing Diagram:

Terminal Description & Pin Out:

PIN No.

PIN NAME

FUNCTION

GND

GND terminal

SERIAL-IN

Serial Data Input terminal

CLOCK

Clock Input terminal

LATCH

Latch Input Terminal

6~9,11~14,

17~20,22~25

OUT0~15

Output terminals

ENABLE

Output Enable Input Terminal

SERIAL-OUT

Serial Data Out Terminal

R-EXT

Constant Current Programming

VDD

5V Supply voltage terminal

10,15,16,21

VLED

0~17V Supply voltage terminal for LED

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

All Outputs are OFF when ENABLE is H and ON when ENABLE is L.

Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax:

518.785.4725

Web: www.marktechopto.com | Email: info@marktechopto.com

California Sales Office:

950 South Coast Drive, Suite 265

Costa Mesa, California 92626

Toll Free: 800.984.5337

Fax: 714.850.9314

TOSHIB

OSHIB

OSHIBA Bi-CMOS

A Bi-CMOS

Constant Cur

Constant Currrrrrent Interf

ent Interf

ent Interface Dri

ace Dri

ace Drivvvvver

For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.

TB62708N

Truth Table:

Equivalent Circuit of Inputs and Outputs:

Maximum Ratings:

CLOCK

LATCH

ENABLE

SERIAL-IN

OUT0 OUT7 OUT15

SERIAL-OUT2

Dn Dn-7 Dn-15

Dn-16

DOWN

Dn Dn-7 Dn-15

Dn-15

Dn+1

No Change (data hold)

No Change

DOWN

Dn+1

No Change (data hold)

Dn-14

No Edge

Dn+1

Dn +1 Dn-6 Dn-14

No Change

No Edge

Dn+1

Off

No Change

CHARACTER

SYMBOL

RATING

UNIT

Supply Voltage

VDD

+7.0

Supply Voltage for LED

VCC

+17.0

Output Voltage

VCE

-0.4~+17.0

Output Current

IOUT

-90

Input Voltage

VIN

-0.4~VDD + 0.4

GND Terminal Current

IGND

1440

Clock Frequency

FCLK

MHz

Power Dissipation

2.08 (ON PCB,Ta=25°C)

1.56 (FREE AIR, Ta=25°C)

Operating Temperature

Topr

-40~+85

°C

Storage Temperature

Tstg

-55~+150

°C

Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax:

518.785.4725

Web: www.marktechopto.com | Email: info@marktechopto.com

California Sales Office:

950 South Coast Drive, Suite 265

Costa Mesa, California 92626

Toll Free: 800.984.5337

Fax: 714.850.9314

TOSHIB

OSHIB

OSHIBA Bi-CMOS

A Bi-CMOS

Constant Cur

Constant Currrrrrent Interf

ent Interf

ent Interface Dri

ace Dri

ace Drivvvvver

For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.

TB62708N

Recommended Operating Condition:

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

Supply Voltage

VDD

4.5

5.0

5.5

Supply Voltage for LED

VCC

Outout Voltage

VOUT

-17

Output Current

IOUT

DC 1 Circuit

-5

-78

IOH

SERIAL-OUT

1.0

IOL

SERIAL-OUT

-1.0

Input Voltage

VIH

0.7VDD

VDD+0.3

VIL

-0.3

0.3VDD

LATCH Pulse Width

tw LAT

VDD=4.5 ~ 5.5V

100

CLOCK Pulse Width

tw CLK

ENABLE Pulse Width

tw EN

1000

Set-up Time

tsetup(D)

Hold Time

thold(D)

Clock Frequency

FCLK

Cascade Operation

10.0

MHz

Power Dissipation

ON PCB, Ta=85°C

1.08

Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax:

518.785.4725

Web: www.marktechopto.com | Email: info@marktechopto.com

California Sales Office:

950 South Coast Drive, Suite 265

Costa Mesa, California 92626

Toll Free: 800.984.5337

Fax: 714.850.9314

TOSHIB

OSHIB

OSHIBA Bi-CMOS

A Bi-CMOS

Constant Cur

Constant Currrrrrent Interf

ent Interf

ent Interface Dri

ace Dri

ace Drivvvvver

For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.

Electrical Characteristics:

TB62708N

CHARACTERISTIC

SYMBOL

TEST

CIR-

CUIT

CONDITION

MIN.

TYP.

MAX.

UNIT

Input
Voltage

"H" level

VIH

0.7VDD

VDD

"L" level

VIL

GND

0.3VDD

Output Leakage Current

I LEAK

VLED=17.0V

-10

µA

Output
Voltage

SERIAL-OUT

VOL

IOL=+1.0mA

0.4

VOH

IOH=-1.0mA

4.6

Output Current 1

IOL1

OUT

=VCC-2

REXT=360

-66.3

-78

-89.7

Current Skew

lOL1

OUT

=VCC-2

REXT=360

±1.5

±6.0

Supply Voltage Regulation

% / VDD

REXT=360

Ta=-40~+85°C

1.5

5.0

% /V

Supply Current

IDD (off) 1

REXT=OPEN OUT0~15=off

0.6

1.2

IDD (on)

REXT=360

DATA="H"OUT0~15=on

10.0

15.0

ICC(off)

REXT=360

ALL DATA="L"

OUT0~15=off

ICC(on)

REXT=360

ALL

DATA="H"

OUT0~15=on

1260

Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax:

518.785.4725

Web: www.marktechopto.com | Email: info@marktechopto.com

California Sales Office:

950 South Coast Drive, Suite 265

Costa Mesa, California 92626

Toll Free: 800.984.5337

Fax: 714.850.9314

TOSHIB

OSHIB

OSHIBA Bi-CMOS

A Bi-CMOS

Constant Cur

Constant Currrrrrent Interf

ent Interf

ent Interface Dri

ace Dri

ace Drivvvvver

For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.

TB62708N

Switching Characteristics:

DC Characteristic Test Circuit:

AC Characteristic Test Circuit:

CHARACTERISTIC

SYMBOL

TEST CONDITION

MIN.

TYP.

MAX.

UNIT

Propagation
Delay Time
("L" to "H")

CLK-SOUT

tpLH

{CLK,LATCH & ENABLE to

tpLH & tpHL : 50% to 50%}

VDD = 5.0V,VCC=17.0V

VOUT=VCC-2.0V

VIH = VDD

VIL = GND

REXT = 360

RL = 300

CLK-OUTn

200

500

LATCH-OUTn

200

500

ENABLE-OUTn

200

500

Propagation
Delay Time
("H" to "L")

CLK-OUTn

tpHL

200

500

LATCH-OUTn

200

500

ENABLE-OUTn

200

500

CLK-SOUT

Pulse

Width

CLK

tw CLK,CLK

LATCH

tw LAT,LAT

Latch Set Up Time

tsetup LAT

Latch Hold Time

thold LAT

Maximum Clock Rise Time

µs

Maximum Clock Fall Time

Maximum Output Rise Time

tor

150

300

600

Maximum Output Fall Time

tof

150

300

600

Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax:

518.785.4725

Web: www.marktechopto.com | Email: info@marktechopto.com

California Sales Office:

950 South Coast Drive, Suite 265

Costa Mesa, California 92626

Toll Free: 800.984.5337

Fax: 714.850.9314

TOSHIB

OSHIB

OSHIBA Bi-CMOS

A Bi-CMOS

Constant Cur

Constant Currrrrrent Interf

ent Interf

ent Interface Dri

ace Dri

ace Drivvvvver

For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.

TB62708N

Timing Wave Form:

Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax:

518.785.4725

Web: www.marktechopto.com | Email: info@marktechopto.com

California Sales Office:

950 South Coast Drive, Suite 265

Costa Mesa, California 92626

Toll Free: 800.984.5337

Fax: 714.850.9314

TOSHIB

OSHIB

OSHIBA Bi-CMOS

A Bi-CMOS

Constant Cur

Constant Currrrrrent Interf

ent Interf

ent Interface Dri

ace Dri

ace Drivvvvver

For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.

TB62708N

Graphs:

Current Programming Resistor Selection::

Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax:

518.785.4725

Web: www.marktechopto.com | Email: info@marktechopto.com

California Sales Office:

950 South Coast Drive, Suite 265

Costa Mesa, California 92626

Toll Free: 800.984.5337

Fax: 714.850.9314

TOSHIB

OSHIB

OSHIBA Bi-CMOS

A Bi-CMOS

Constant Cur

Constant Currrrrrent Interf

ent Interf

ent Interface Dri

ace Dri

ace Drivvvvver

For up-to-date product info visit our web site at www.marktechopto.com All specifications subject to change.

TB62708N

Application Circuit:

Outline Drawing:

Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax:

518.785.4725

Web: www.marktechopto.com | Email: info@marktechopto.com

California Sales Office:

950 South Coast Drive, Suite 265

Costa Mesa, California 92626

Toll Free: 800.984.5337

Fax: 714.850.9314

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TB62708N

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TB62708N