STP16CPPS05
Low voltage 16-bit constant current LED sink driver with auto
power-saving
Datasheet - production data
Description
The STP16CPPS05 is a monolithic, low voltage,
low current power 16-bit shift register designed
for LED panel displays. The device features 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 3 to 40 mA of constant
current to drive the LEDs.
The STP16CPPS05 output current can be
adjusted through an external resistor to control
the light intensity of the LEDs. LED brightness is
Features
Low voltage power supply down to 3 V
16 constant current output channels
Adjustable output current through external
resistor
Serial data IN/parallel data OUT
Auto power-saving
3.3 V MCU-driving capability
Output current: 3 to 40 mA
30 MHz clock frequency
Available in high thermal efficiency TSSOP
exposed pad
ESD protection: 2 kV HBM, 200 V MM
adjustable from 0% to 100% via the OE pin.
The auto power-shutdown and auto power-ON
feature allows the device to save power with no
external intervention.
The STP16CPPS05 guarantees a 20 V output
driving capability, allowing users to connect more
LEDs in series. The high 30 MHz clock frequency
makes the device suitable for high data rate
transmission. The 3.3 V supply is well suited for
applications which interface a 3.3 V MCU.
Compared to a standard TSSOP package, the
TSSOP with exposed pad increases heat
dissipation capability by a factor of 2.5.
Table 1: Device summary
Order code
STP16CPPS05MTR
STP16CPPS05TTR
STP16CPPS05XTTR
STP16CPPS05PTR
Package
SO-24
TSSOP24
TSSOP24 exposed pad
QSOP-24
Packing
1000 parts per reel
2500 parts per reel
2500 parts per reel
2500 parts per reel
March 2017
DocID16536 Rev 4
1/31
www.st.com
This is information on a product in full production.
Contents
STP16CPPS05
Contents
1
2
Summary description ...................................................................... 3
1.1
2.1
2.2
2.3
Pin connection and description ......................................................... 3
Absolute maximum ratings ................................................................ 4
Thermal data ..................................................................................... 4
Recommended operating conditions ................................................. 5
Electrical ratings ............................................................................. 4
3
4
5
6
7
8
Electrical characteristics ................................................................ 6
Equivalent circuit and outputs ....................................................... 8
Timing diagrams ............................................................................ 11
Typical characteristics .................................................................. 14
Auto power-saving ........................................................................ 18
Package information ..................................................................... 20
8.1
8.2
8.3
8.4
8.5
QSOP-24 package information ....................................................... 21
SO-24 package information ............................................................ 23
TSSOP24 package information ....................................................... 24
TSSOP24 exposed pad package information ................................. 26
TSSOP24, TSSOP24 exposed pad and ............................................
SO-24 packing information .............................................................. 28
9
Revision history ............................................................................ 30
2/31
DocID16536 Rev 4
STP16CPPS05
Summary description
1
Summary description
Table 2: Typical current accuracy
Current accuracy
Output voltage
Between bits
≥ 1.3 V
± 1%
Between ICs
± 2%
5 to 40 mA
3.3 V to 5 V
25 °C
Output current
V
DD
Temperature
1.1
Pin connection and description
Figure 1: Pin connection
The exposed pad should be electrically connected to a metal land electrically
isolated or connected to ground.
Table 3: Pin description
Pin n°
1
2
3
4
5-20
21
22
23
24
Symbol
GND
SDI
CLK
LE
OUT 0-15
OE
SDO
R-EXT
V
DD
Ground terminal
Serial data input terminal
Clock input terminal
Latch input terminal - detect mode 1 (see operation principle)
Output terminal
Input terminal of output enable (active low) - detect mode 1 (see operation
principle)
Serial data out terminal
Input terminal for an external resistor for constant current programming
Supply voltage terminal
Name and function
DocID16536 Rev 4
3/31
Electrical ratings
STP16CPPS05
2
2.1
Electrical ratings
Absolute maximum ratings
Stressing the device above the ratings listed in the “absolute maximum ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other condition above those indicated in the operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
Table 4: Absolute maximum ratings
Symbol
V
DD
V
O
I
O
V
I
I
GND
f
CLK
T
J
Notes:
(1)
Parameter
Supply voltage
Output voltage
Output current
Input voltage
GND terminal current
Clock frequency
Junction temperature range
(1)
Value
0 to 7
-0.5 to 20
50
-0.4 to V
DD
800
50
-40 to +170
Unit
V
V
mA
V
mA
MHz
°C
Such absolute value is based on the thermal shutdown protection.
2.2
Thermal data
Table 5: Thermal data
Symbol
T
A
T
J-OPR
T
STG
Parameter
Operating free-air temperature range
Operating thermal junction temperature range
Storage temperature range
SO-24
TSSOP24
R
thJA
Thermal resistance junction-ambient
(1)
TSSOP24
(2)
exposed pad
QSOP-24
Notes:
(1)
(2)
Value
-40 to +125
-40 to +150
-55 to +150
42.7
55
37.5
55
Unit
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
According with JEDEC standard 51-7B.
The exposed pad should be soldered directly to the PCB to realize the thermal benefits.
4/31
DocID16536 Rev 4
STP16CPPS05
Electrical ratings
2.3
Recommended operating conditions
Table 6: Recommended operating conditions
Symbol
V
DD
V
O
I
O
I
OH
I
OL
V
IH
V
IL
t
wLAT
t
wCLK
t
wEN
t
SETUP(D)
t
HOLD(D)
t
SETUP(L)
f
CLK
Notes:
(1)
Parameter
Supply voltage
Output voltage
Output current
Output current
Output current
Input voltage
Input voltage
LE pulse width
CLK pulse width
OE pulse width
Setup time for DATA
Hold time for DATA
Setup time for LATCH
Clock frequency
Test conditions
Min.
3.0
Typ.
Max.
5.5
20
Unit
V
V
mA
mA
mA
V
V
ns
ns
ns
ns
ns
ns
OUTn
SERIAL-OUT
SERIAL-OUT
3
40
+1
-1
0.7 V
DD
-0.3
20
10
V
DD
= 3.0 V to 5.0 V
100
8
5
8
Cascade operation
(1)
V
DD
0.3 V
DD
30
MHz
If the device is connected in cascade, it may not be possible achieve the maximum data transfer. Please
consider the timings carefully.
DocID16536 Rev 4
5/31
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