STP16CL596M Datasheet STP16CL596M, STP16CL596XTTR, STP16CL596MTR | P1-P3

July 2006 Rev 10 1/24

STP16CL596

Low voltage 16-Bit, constant current LED sink driver

Features

■ Low voltage power supply down to 3V

■ 16 constant current output channels

■ Adjustable output current through external

resistor

■ Serial data IN/parallel data OUT

■ Serial OUT changes state on the falling edges

of clock

■ 3.3V micro driver-able

■ Output current: 15-90mA

■ 25Mhz clock freqrequency

■ available in high thermal efficiency TSSOP

exposed pad

Description

The STP16CL596 is a monolithic, medium-

voltage, low current power 16-bit shift register

designed for LED panel displays.

The device contains a 16-bit serial-IN, parallel-

OUT shift register that feeds a 16-bit, D-type

storage register. In the output stage, sixteen

regulated current sources are designed to provide

15-90mA constant current to drive the LEDs.

The serial output change state on the falling

edges of clock, this special feature will provide an

improved performance of the application when the

clock signal is skewed because the daisy chain is

too long.

Through an external resistor, users may adjust the

STP16CL596 output current, controlling in this

way the light intensity of LEDs.

The STP16CL596 guarantees a 16V output

driving capability, allowing users to connect more

LEDs in series. The high clock frequency, 25MHz,

also satisfies the system demand for high volume

data transmission, the 3.3V of voltage supply is

well useful for applications that interface any micro

from 3.3V.

Compared with a standard TSSOP package, the

TSSOP exposed pad increases heat dissipation

capability by a 2.5 factor.

DIP-24 SO-24

TSSOP24

(exposed pad)

www.st.com

Order Codes

Part Number Package Packaging

STP16CL596B1R DIP-24 15 parts per tube

STP16CL596M SO-24 (Tube) 40 parts per tube

STP16CL596MTR SO-24 (Tape & Reel) 1000 parts per reel

STP16CL596TTR TSSOP24 (Tape & Reel) 2500 parts per reel

STP16CL596XTTR TSSOP24 Exposed-Pad (Tape & Reel) 2500 parts per reel

Obsolete Product(s) - Obsolete Product(s)

Contents STP16CL596

2/24

Contents

1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Pin connection and description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Equivalent circuit of inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.2 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5 Switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

7 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Obsolete Product(s) - Obsolete Product(s)

STP16CL596 Summary description

3/24

1 Summary description

1.1 Pin connection and description

Note: The Exposed-Pad is electrically not connected

Table 2. Pin description

Table 1. Current accuracy

Output voltage

Current accuracy

Output current

Between bits Between ICs

≥ 0.7V ± 3% ± 10% 15 to 90mA

Figure 1. Connections diagram

PIN N° Symbol Name and function

1 GND Ground terminal

2 SDI Serial data input terminal

3 CLK Clock input terminal

4 LE Latch input terminal

5-20 OUT 0-15 Output terminal

Input terminal of output enable (active low)

22 SDO Serial data out terminal

23 R-EXT Input terminal of an external resistor for constant current programing

Supply voltage terminal

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24

STP16CL596M

Mfr. #:

Buy STP16CL596M

Manufacturer:

STMicroelectronics

Description:

LED Display Drivers 16-Bit Curr LED Sink

Lifecycle:

New from this manufacturer.

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STP16CL596M

STP16CL596M

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