STP16CPS05
Low voltage 16-bit constant current LED sink driver with auto
power saving
Datasheet - production data
Description
The STP16CPS05 is a monolithic, low voltage,
low current power 16-bit shift register designed
for LED panel displays. The STP16CPS05
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 provide from 5 mA to 100 mA
constant current to drive the LEDs. The auto
power shut-down and auto power-ON feature
allows the device to save power without any
external intervention. The output current setup
time is 40 ns (typ.), thus improving the system
performance. The LEDs' brightness can be
controlled by using an external resistor to adjust
the STP16CPS05 output current. The
STP16CPS05 guarantees a 20 V output driving
capability, allowing users to connect more LEDs
in series. The high clock frequency, 30 MHz,
makes the device suitable for high data rate
transmission. The 3.3 V voltage supply is useful
in applications that interface with a 3.3 V
microcontroller.
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 feature minimizes the
quiescent current if no active data is
detected on the latches
Can be driven by a 3.3 V microcontroller
Output current: 5-100 mA
Max clock frequency 30 MHz
ESD protection: 2 kV HBM, 200 V MM
Table 1: Device summary
Order code
Package
Packing
STP16CPS05MTR
SO-24
1000 parts per reel
STP16CPS05TTR
TSSOP24
2500 parts per reel
STP16CPS05XTTR
TSSOP24 exposed pad
2500 parts per reel
STP16CPS05PTR
QSOP-24
2500 parts per reel
March 2017
DocID12569 Rev 8
This is information on a product in full production.
1/31
www.st.com
Contents
STP16CPS05
Contents
1
Summary description ...................................................................... 3
1.1
2
Pin connection and description ......................................................... 3
Electrical ratings ............................................................................. 4
2.1
Absolute maximum ratings ................................................................ 4
2.2
Thermal data ..................................................................................... 4
2.3
Recommended operating conditions ................................................. 5
3
Electrical characteristics ................................................................ 6
4
Equivalent circuit and outputs ....................................................... 8
5
Timing diagrams ............................................................................ 11
6
Typical characteristics .................................................................. 14
7
Test circuit ..................................................................................... 18
8
Package information ..................................................................... 20
8.1
QSOP-24 package information ....................................................... 21
8.2
SO-24 package information ............................................................ 23
8.3
TSSOP24 package information ....................................................... 24
8.4
TSSOP24 exposed pad package information ................................. 26
8.5
TSSOP24, TSSOP24 exposed pad and ............................................
SO-24 packing information .............................................................. 28
9
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Revision history ............................................................................ 30
DocID12569 Rev 8
STP16CPS05
1
Summary description
Summary description
Table 2: Typical current accuracy
Current accuracy
Output voltage
Between bits
Between ICs
± 1.5 %
±5%
≥ 1.3 V
1.1
Output current
VDD
Temperature
20 to 100 mA
3.3 V to 5 V
25 °C
Pin connection and description
Figure 1: Pin connection
The exposed pad should be electrically connected to a metal land electrically
isolated or connected to GND.
Table 3: Pin description
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
21
OE
Input terminal of output enable (active low)
22
SDO
Serial data out terminal
23
R-EXT
24
VDD
Output terminal
Input terminal for an external resistor for constant current programming
Supply voltage terminal
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Electrical ratings
STP16CPS05
2
Electrical ratings
2.1
Absolute maximum ratings
Stressing the device above the rating 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 conditions 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
Parameter
Value
Unit
VDD
Supply voltage
0 to 7
V
VO
Output voltage
-0.5 to 20
V
IO
Output current
100
mA
VI
Input voltage
IGND
GND terminal current
fCLK
Clock frequency
TJ
Junction temperature
range(1)
-0.4 to VDD
V
1600
mA
50
MHz
-40 to +170
°C
Value
Unit
-40 to + 125
°C
Notes:
(1)
2.2
Such absolute value is achieved according the thermal shutdown.
Thermal data
Table 5: Thermal data
Symbol
Parameter
TOPR
Operating temperature range
TSTG
Storage temperature range
RthJA
Thermal resistance junction-ambient(1)
-55 to + 150
SO-24
42.7
°C/W
TSSOP24
55
°C/W
37.5
°C/W
55
°C/W
TSSOP24(2)
exposed pad
QSOP-24
Notes:
4/31
(1)
According to jedec standard 51-7B.
(2)
The exposed pad should be soldered directly to the PCB to realize the thermal benefits.
DocID12569 Rev 8
°C
STP16CPS05
2.3
Electrical ratings
Recommended operating conditions
Table 6: Recommended operating conditions at 25 °C
Symbol
Parameter
Test conditions
Min.
3.0
Typ.
Max.
Unit
5.5
V
20
V
100
mA
VDD
Supply voltage
VO
Output voltage
IO
Output current
OUTn
IOH
Output current
SERIAL-OUT
+1
mA
IOL
Output current
SERIAL-OUT
-1
mA
VIH
Input voltage
0.7 VDD
VDD
V
VIL
Input voltage
-0.3
0.3 VDD
V
5
twLAT
LE pulse width
10
ns
twCLK
CLK pulse width
8
ns
100
ns
twEN
OE pulse width
VDD = 3.0 V to 5.0 V
tSETUP(D)
Setup time for DATA
14
ns
tHOLD(D)
Hold time for DATA
5
ns
tSETUP(L)
Setup time for LATCH
15
ns
fCLK
Clock frequency
Cascade operation
(1)
30
MHz
Notes:
(1)
If the device is connected in cascade, it may not be possible achieve the maximum data transfer. Please
consider the timings carefully.
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Electrical characteristics
3
STP16CPS05
Electrical characteristics
Table 7: Electrical characteristics (VDD = 3.3 V to 5 V, T = 25 °C, unless otherwise specified)
Symbol
VIH
Parameter
Test conditions
Input voltage high level
Min.
Typ.
Max.
Unit
0.7 VDD
VDD
V
GND
0.3
VDD
V
VIL
Input voltage low level
IOH
Output leakage current
VOH = 20 V
10
μA
VOL
Output voltage (serial-OUT)
IOL = 1 mA
0.4
V
VOH
Output voltage (serial-OUT)
IOH = -1 mA
VDD-0.4V
V
VO = 0.3 V, Rext = 3.9 kΩ
4.25
5
5.75
VO = 0.3 V, Rext = 970 Ω
19
20
21
IOL3
VO = 1.3 V, Rext = 190 Ω
96
100
104
ΔIOL1
VO = 0.3 V, Rext = 3.9 kΩ
±5
±8
VO = 0.3 V, Rext = 970 Ω
±
1.5
±3
VO = 1.3 V, Rext = 190 Ω
±
1.2
±3
IOL1
IOL2
ΔIOL2
Output current
Output current error between bit
(all output ON)
ΔIOL3
mA
%
Pull-up resistor
150
300
600
kΩ
RSIN(down)
Pull-down resistor
100
200
400
kΩ
Shut-down current
all latched data = L
VDD = 3.3 V
120
170
IDD(SH)
VDD = 5 V
140
200
RSIN(up)
Rext = 970
OUT 0 to 15 = OFF
5
IDD(OFF2)
Rext = 240
OUT 0 to 15 = OFF
12.5
IDD(ON1)
Rext = 970
OUT 0 to 15 = ON
5.5
Rext = 240
OUT 0 to 15 = ON
13
IDD(OFF1)
Supply current (OFF)
Supply current (ON)
IDD(ON2)
Thermal
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Thermal protection
mA
170
DocID12569 Rev 8
μA
°C
STP16CPS05
Electrical characteristics
Table 8: Switching characteristics
Symbol
Parameter
Test conditions
Typ.
Max.
35
55
VDD = 5 V
17.5
26
Propagation delay time,
VDD = 3.3 V
33.5
52
LE- OUTn , OE = L
VDD = 5 V
17
20
Propagation delay time,
VDD = 3.3 V
53.5
84.5
OE - OUTn , LE = H
VDD = 5 V
28.5
40.5
VDD = 3.3 V
19
27.5
VDD = 5 V
13
18.5
VDD = 3.3 V
13
19
VDD = 5 V
8.5
Propagation delay time,
tPLH1
VDD = 3.3 V
CLK- OUTn , LE = H,
OE = L
tPLH2
tPLH3
tPLH
Propagation delay time,
CLK-SDO
Propagation delay time,
tPHL1
CLK- OUTn , LE = H,
OE = L
Propagation delay time,
tPHL2
tPHL3
Min.
VIH = VDD
VIL = GND CL = 10 pF
IO = 20 mA VL = 3.0 V
Rext = 1 KΩ RL = 60 Ω
VDD = 3.3 V
10
14.5
VDD = 5 V
6.5
9
Propagation delay time,
VDD = 3.3 V
10.5
15
VDD = 5 V
7.5
10.5
23
33
Propagation delay time,
CLK-SDO
VDD = 3.3 V
VDD = 5 V
15.5
21.5
Output rise time
10~90% of voltage
waveform
VDD = 3.3 V
23.5
31.5
tON
9
10.5
tOFF
Output fall time 90~10%
of voltage waveform
VDD = 3.3 V
4.6
5.5
VDD = 5 V
3.5
5
tf
VDD = 5 V
CLK rise time (1)
CLK fall time
ns
ns
ns
ns
tPHL
tr
ns
12
LE -OUTn , OE = L
OE - OUTn , LE = H
Unit
(1)
ns
ns
ns
ns
ns
5000
ns
5000
ns
Notes:
(1)
In order to achieve high cascade data transfer, please consider tr/tf timings carefully.
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Equivalent circuit and outputs
4
STP16CPS05
Equivalent circuit and outputs
Figure 2: OE/DM2 terminal
Figure 3: LE/DM1 terminal
8/31
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STP16CPS05
Equivalent circuit and outputs
Figure 4: CLK, SDI terminal
Figure 5: SDO terminal
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Equivalent circuit and outputs
STP16CPS05
Figure 6: Block diagram
10/31
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STP16CPS05
5
Timing diagrams
Timing diagrams
Table 9: Truth table
CLOCK
LE
OE
SERIAL-IN
OUT0 ............. OUT7 ................ OUT15
SDO
_|¯
H
L
Dn
Dn ..... Dn - 7 ..... Dn -15
Dn - 15
_|¯
L
L
Dn + 1
No change
Dn - 14
_|¯
H
L
Dn + 2
Dn + 2 ..... Dn - 5 ..... Dn -13
Dn - 13
¯|_
X
L
Dn + 3
Dn + 2 ..... Dn - 5 ..... Dn -13
Dn - 13
¯|_
X
H
Dn + 3
OFF
Dn - 13
OUTn = ON when Dn = H OUTn = OFF when Dn = L.
Figure 7: Timing diagram
1 Latch and output enable terminals are Level-sensitive and are not synchronized
with rising or falling edge of CLK signal.
2 When LE terminal is at low level, the latch circuit holds previous set of data.
3 When LE terminal is at high level, the latch circuit refreshes new set of data
from SDI chain.
4 When OE is at low level the output terminals Out 0 to Out 15 respond to data
in the latch circuits, either '1' for ON or '0' for OFF.
5 When OE is at high level, all output terminals are switched OFF.
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Timing diagrams
STP16CPS05
Table 10: Truth table
CLOCK
LE
SDI0 ........... SDI7 ............ SDI15
SH
Auto power-up
OUTn
_|¯
H
All = L
Active
Not active
OFF
_|¯
L
No change
No change
No change
No change
_|¯
H
One or more = H
Not active
Active
X
At the power-up the device starts in shut-down mode.
Figure 8: Clock, serial-in, serial-out
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STP16CPS05
Timing diagrams
Figure 9: Clock, serial-in, latch, enable, outputs
Figure 10: Outputs
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Typical characteristics
6
STP16CPS05
Typical characteristics
Figure 11: Output current-R-EXT resistor
Table 11: Output current-R-EXT resistor
14/31
R-EXT (Ω)
Output current (mA)
976
20
780
25
652
30
560
35
488
40
433
45
389
50
354
55
325
60
300
65
278
70
259
75
241
80
229
85
215
90
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STP16CPS05
Typical characteristics
Figure 12: Output current vs ± ΔIOL(%)
Figure 13: ISET vs drop out voltage (Vdrop)
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Typical characteristics
STP16CPS05
Figure 14: IDD ON\OFF
Figure 15: Auto power saving
Auto power-saving feature minimizes the quiescent current if no active data is
detected on the latches and auto-power-up the device at fist active data latched.
16/31
DocID12569 Rev 8
STP16CPS05
Typical characteristics
Figure 16: First output ON after switching from auto power saving to normal mode operating
condition
When the device goes from auto power saving to normal operative condition, the
first output that switch ON shows TON condition as seen in the plot above.
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Test circuit
7
STP16CPS05
Test circuit
Figure 17: DC characteristic
Figure 18: AC characteristic
18/31
DocID12569 Rev 8
STP16CPS05
Test circuit
Figure 19: Typical application schematic
VL will be determined by the VF of the LEDs.
Figure 20: Turn ON output current characteristics(1)
Figure 21: Turn OFF output current characteristics(2)
Notes:
(1)
Reference level for the TON characteristics is 50 % of OE signal to 90 % of output current.
(2)
Reference level for the TOFF characteristics is 50 % of OE signal to 10 % of output current.
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Package information
8
STP16CPS05
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK ®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
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DocID12569 Rev 8
STP16CPS05
8.1
Package information
QSOP-24 package information
Figure 22: QSOP-24 package outline
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Package information
STP16CPS05
Table 12: QSOP-24 mechanical data
mm
Dim.
Min.
Typ.
Max.
A
1.54
1.62
1.73
A1
0.10
0.15
0.25
A2
1.47
b
0.20
0.31
c
0.17
0.254
D
8.56
8.66
8.76
E
5.80
6.00
6.20
E1
3.80
3.91
4.01
e
22/31
0.635
L
0.40
0.635
0.89
h
0.25
0.33
0.41
<
0°
DocID12569 Rev 8
8°
STP16CPS05
8.2
Package information
SO-24 package information
Figure 23: SO-24 package outline
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Package information
STP16CPS05
Table 13: SO-24 mechanical data
mm
Dim.
Min.
Typ.
A
2.35
2.65
A1
0.10
0.30
B
0.33
0.51
C
0.23
0.32
D
15.20
15.60
E
7.40
e
7.60
1.27
H
10.00
10.65
h
0.25
0.75
L
0.40
1.27
k
0
8
ddd
8.3
0.10
TSSOP24 package information
Figure 24: TSSOP24 package outline
24/31
Max.
DocID12569 Rev 8
STP16CPS05
Package information
Table 14: TSSOP24 mechanical data
mm
Dim.
Min.
Typ.
A
A1
Max.
1.1
0.05
A2
0.15
0.9
b
0.19
0.30
c
0.09
0.20
D
7.7
7.9
E
4.3
4.5
e
0.65 BSC
H
6.25
6.5
K
0°
8°
L
0.50
0.70
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Package information
8.4
STP16CPS05
TSSOP24 exposed pad package information
Figure 25: TSSOP24 exposed pad package outline
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STP16CPS05
Package information
Table 15: TSSOP24 exposed pad mechanical data
mm
Dim.
Min.
Typ.
Max.
A
1.20
A1
0.15
A2
0.80
1.00
1.05
b
0.19
0.30
c
0.09
0.20
D
7.70
7.80
7.90
D1
4.80
5.00
5.2
E
6.20
6.40
6.60
E1
4.30
4.40
4.50
E2
3.00
3.20
3.40
e
L
0.65
0.45
L1
k
060
075
1.00
0°
aaa
8°
0.10
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Package information
8.5
STP16CPS05
TSSOP24, TSSOP24 exposed pad and SO-24 packing
information
Figure 26: TSSOP24, TSSOP24 exposed pad and SO-24 reel outline
Table 16: TSSOP24 and TSSOP24 exposed pad tape and reel mechanical data
mm
Dim.
Min.
A
Max.
-
330
13.2
C
12.8
-
D
20.2
-
N
60
-
T
28/31
Typ.
-
22.4
Ao
6.8
-
7
Bo
8.2
-
8.4
Ko
1.7
-
1.9
Po
3.9
-
4.1
P
11.9
-
12.1
DocID12569 Rev 8
STP16CPS05
Package information
Table 17: SO-24 tape and reel mechanical data
mm
Dim.
Min.
A
Typ.
Max.
-
330
13.2
C
12.8
-
D
20.2
-
N
60
-
T
-
30.4
Ao
10.8
-
11.0
Bo
15.7
-
15.9
Ko
2.9
-
3.1
Po
3.9
-
4.1
P
11.9
-
12.1
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Revision history
9
STP16CPS05
Revision history
Table 18: Document revision history
Date
Revision
28-Jul-2006
1
First release
22-Dec-2006
2
Final datasheet
17-May-2007
3
Updated Table 8 on page 8
10-Jul-2007
4
Updated Table 9: Truth table on page 11
28-Feb-2008
5
Updated Table 19: TSSOP24 exposed pad on page 25
Added QSOP-24 package information
Table 14 and Figure 20 on page 21
19-Jan-2010
6
Updated Table 6 on page 6
7
Updated Section 8: Package mechanical data.
Added Section 9: Packaging mechanical data.
Minor text changes.
8
Updated Figure 5: "SDO terminal", Figure 8: "Clock, serial-in, serialout", Figure 9: "Clock, serial-in, latch, enable, outputs" and Section
8.1: "QSOP-24 package information".
Minor text changes.
17-Jun-2014
24-Mar-2017
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Changes
DocID12569 Rev 8
STP16CPS05
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