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.

TB62705CP/CF/CFN

8 Bit Constant Current LED Driver with
Shift Register and Latch Functions

Product Description:

The TB62705CP/CF/CFN is specifically designed
for LED display applications. The Bi-CMOS device
has 8 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 8 outputs effectively compen-
sating for the inherent circuit and component
variables which affect the brightness of the LEDs.

Features:

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

Block Diagram:

SSOP16-P-225-1.00A

TB62705CF

Weight: 0.14g(typ)

SSOP16-P-225-0.65B

TB62705CFN

Weight: 0.07g(typ)

NEW! Ultra Small Surface Mount Package

DIP16-P-300-2.54A

TB62705CP

Weight: 1.11g(typ)

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.

TB62705CP/CF/CFN

Timing Diagram:

Terminal Description & Pin Out:

PIN No.

PIN NAME

FUNCTION

GND

GND terminal for control logic

SERIAL-IN

Input terminal of a serial-data for shift register

CLOCK

Input terminal of a clock for data shift up to edge.

LATCH

Inout terminal of a data strobe. (Latches pass data with "H" level inputof
LATCH-terminal, and hold data with "L" level input.)

5~12

OUT0~7

Output terminals

ENABLE

Input Teminal of output enable. (All outputs (OUT0~7) do off with "H" level
input of ENABLE terminal, and on with "L"level input.)

SERIAL-OUT

Output terminal of serial data for next SERIAL-IN terminal.

R-EXT

Constant Current Programming through external resistor

VDD

5V Supply voltage terminal

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.

TB62705CP/CF/CFN

Truth Table:

Equivalent Circuit of Inputs and Outputs:

Maximum Ratings:

CLOCK

LATCH

ENABLE

SERIAL-IN

OUT0 OUT5 OUT7

SERIAL-OUT

Dn Dn-5 Dn-7

Dn-7

Dn+1

No Change

Dn-6

Dn+2

Dn+2 Dn-3 Dn-5

Dn-5

DOWN

Dn+3

Dn+2 Dn-3 Dn-5

Dn-5

DOWN

DN+3

Off

Dn-5

CHARACTER

SYMBOL

RATING

UNIT

Supply Voltage

VDD

0~+7.0

Input Voltage

VIN

-0.4~VDD + 0.4

Output Current

IOUT

+90

Output Voltage

VOUT

-0.5~+17.0

Clock Frequency

FCLK

MHz

GND Terminal Current

IGND

720

Power Dissipation

1.47 (CP type : FREE AIR,Ta=25°C)

0.78 (CF/CFN type : ON PCB,Ta=25°C)

Thermal Resistance

Rth (j-a)

85 (CP type : FREE AIR,Ta=25°C)

ºC / W

160 (CF/CFN type : ON PCB,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.

TB62705CP/CF/CFN

Recommended Operating Condition:

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

Supply Voltage

VDD

4.5

5.0

5.5

Outout Voltage

VOUT

15.0

Output Current

IOUT

DC 1 Circuit

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

4500

Set-up Time for DATA

tsetup(D)

Hold Time for Data

thold(D)

Set-up Time for LATCH

tsetup(L)

100

Hold Time for ENABLE

thold(L)

Clock Frequency

FCLK

Cascade Operation

MHz

Power Dissipation

Ta=85°C (CP type FREE AIR)

0.82

Ta=85°C (CF/CFN type ON PCB)

0.40

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.

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

IOH

VOH=15.0V

µA

Output
Voltage

SERIAL--

OUT

VOL

IOL=+1.0mA

0.4

VOH

IOH=-1.0mA

4.6

Output Current 1

IOL1

VCE=0.7V

REXT=470

(include Skew)

34.1

40.0

45.9

IOL2

VCE=0.4V

33.7

39.5

45.3

Current

Skew

dIOL1

IO=40mA,
VCE=0.4V

REXT=470

±1.5

±6.0

Output Current 2

IOL3

VCE=0.4V

REXT=250

(Include Skew)

64.2

75.5

86.8

IOL4

VCE=0.7V

63.8

75.0

86.2

Current

Skew

dIOL2

IO=75mA,
VCE=0.7V

REXT=250

±1.5

±6.0

Supply Voltage
Regulation

% / VDD

REXT=470

Ta=~+85°C

±1.5

±5.0

% /V

Pull Up Resistor

RIN(up)

150

300

600

Pull-down Resistor

RIN(down)

100

200

400

Supply
Current

"OFF"

IIDD (off) 1

REXT=OPEN OUT 1~8=off

0.6

1.2

IIDD (off) 2

REXT=470

OUT 1~8=off

3.5

5.8

8.0

IIDD (off) 3

REXT=250

OUT 1~8=off

6.5

10.7

15.0

"ON"

IDD (on)1

REXT=470

OUT 1~8=on

7.0

12.0

18.0

IDD (on)2

REXT=250

OUT 1~8=on

10.0

22.0

32.0

Electrical Characteristics:

TB62705CP/CF/CFN

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

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