STP04CM596
4-Bit constant current for power-LED
LED sink driver
General features
■
4 constant current output channels
■
Adjustable output current through one external
resistor
■
Serial data IN/parallel data OUT
■
Serial OUT change state on the failing edges of
clock
■
Four outputs current: 80-500mA
■
25MHz clock frequency
■
Available in high thermal TSSOP exposed pad.
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Description
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Order codes
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SO-14
Dip-14
TSSOP16
(Exposed pad)
The STP04CM596 guarantees 16V output driving
capability, allowing users to connect more LEDs in
series. The high clock frequency, 25 MHz, also
satisfies the system requirements which include
high volume data transmission.
The STP04CM596 is a high-power LED Driver
and 4-bit shift register designed for PowerLED
applications.
The STP04CM596 contains a 4-bit serial IN,
parallel OUT shift register that feeds a 4-bit Dtype storage register. In the output stage, four
regulated current sources were designed to
provide 80-500mA constant current to drive the
high powered LEDs.
The STP04CM596 is well suited for very high
brightness displays and special lighting
applications.
The STP04CM596 is offered in DIP-14, SO-14
and TSSOP16 Exposed Pad packages.
Part Number
Package
Packaging
STP04CM596B1R
DIP-14
25 parts per tube
STP04CM596M
SO-14 (Tube)
50 parts per tube
STP04CM596MTR
SO-14 (Tape & Reel)
2500 parts per reel
STP04CM596XTTR
TSSOP16 Exposed-pad (Tape & Reel)
2500 parts per reel
July 2006
Rev 5
1/24
www.st.com
24
Contents
STP04CM596
Contents
1
Internal schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
2.1
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
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3.1
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5
Equivalent circuit of inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . 9
6
Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8
Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2/24
STP04CM596
1
Internal schematic
Internal schematic
Figure 1.
Block diagram
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3/24
Pin settings
STP04CM596
2
Pin settings
2.1
Pin connection
Figure 2.
Pin connection
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2.2
Pin description
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DIP-14/SO-14
TSSOP16 (Exposed pad)
Table 1. Pin description
4/24
DIP-14 and SO-14 Pin N°
TSSOP16 Pin N°
Symbol
1
1, 2
GND
Ground terminal
Name and function
2
3
SDI
Serial data input terminal
3
4
CLK
Clock input terminal
4
5
LE
Latch input terminal
5
6
OUT 0
Output terminal
6
7
OUT 1
Output terminal
7, 8
8, 9, 12
N.C.
Not connected
9
10
OUT 2
Output terminal
10
11
OUT 3
Output terminal
11
13
OE
12
14
SDO
13
15
R-EXT
Constant current
programming
14
16
VDD
5V supply voltage
terminal
Output enable input
terminal (active low)
Serial data out terminal
STP04CM596
3
Maximum rating
Maximum rating
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. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 2. Absolute maximum ratings
Symbol
3.1
Parameter
Value
VDD
Supply voltage
0 to 7
VO
Output voltage
-0.5 to 16
IO
Output current
VI
Input voltage
fCLK
Clock frequency
TOPR
Operating temperature range
TSTG
Storage temperature range
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Thermal data
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Table 3. Thermal data
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-0.4 to VDD+0.4
GND terminal current
RthJA
Pr
Parameter
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Thermal resistance junction-ambient
2000
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25
V
mA
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(s)
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500
IGND
Symbol
Unit
V
mA
MHz
-40 to +125
°C
-55 to +150
°C
DIP-14
SO-14
TSSOP16
Unit
70 (1)
105 (2)
37.5 (3)
°C/W
1. 1W of dissipated power, mounted on the board
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2. 1W of dissipated power ,mounted on SM PCB1 SGS board
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3. Using the PCB Multi-Layer JEDEC Standard Test Boards
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5/24
Maximum rating
3.2
STP04CM596
Recommended operating conditions
Table 4. Recommended operating conditions
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
3.3
5.0
5.5
V
16.0
V
500
mA
VDD
Supply voltage
VO
Output voltage
IO
Output current
OUTn VDD = 5V
IOH
Output current
Serial-OUT
+1
mA
IOL
Output current
Serial-OUT
-1
mA
VIH
Input voltage
0.7VDD
VDD+0.3
V
VIL
Input voltage
-0.3
80
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0.3VDD
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twLAT
LE pulse width
20
twCLK
CLK pulse width
20
twEN
OE pulse width
400
100
20
3.3
Pr
6.5
7.0
ns
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Setup time for DATA
tHOLD(D)
Hold time for DATA
15
1.5
ns
tSETUP(L)
Setup time for LATCH
15
5
ns
tHOLD(E)
Hold time for ENABLE
60
38
ns
Clock frequency
TOPR
Operating temperature
range
Cascade operation (1)
-40
ns
25
MHz
+125
°C
1. If multiple devices are cascaded, it may not be possible achieve the maximum data transfer. Please
consider the timing conditions carefully.
6/24
ns
tSETUP(D)
fCLK
VDD = 3.0 to 3.6V
V
STP04CM596
4
Electrical characteristics
Electrical characteristics
Table 5. Current accuracy
Current accuracy
Output voltage
Output current
Between bits
Between ICs
Typ. ± 1%
± 6%
≥ 0.7V
80 to 500 mA
Table 6. Electrical characteristics (VDD = 5V, TA = 25°C, unless otherwise specified.)
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Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
VIH
Input voltage high level
0.7VDD
VDD
V
VIL
Input voltage low level
GND
0.3VDD
V
IOH
Output leakage current
VOH = 16 V
10
µA
VOL
Output voltage
(Serial-OUT)
IOL = 1mA
0.4
V
VOH
Output voltage
(Serial-OUT)
IOH = -1mA
IOL1
Output current
IOL2
∆IOL1
∆IOL2
RSIN(up)
Output current error
between bit (All Output
ON)
VDD-0.4V
V
VO = 0.7VREXT = 910 Ω
77
82
87
mA
VO = 0.7VREXT = 160 Ω
470
500
530
mA
VO = 0.7VREXT = 910 Ω
1
±3
%
VO = 0.7VREXT = 160 Ω
0.5
±3
%
150
300
600
KΩ
100
200
400
KΩ
Pull-up resistor
RSIN(down) Pull-down resistor
IDD(OFF1)
REXT = OPEN
OUT 0 to 3 = OFF
0.3
0.6
IDD(OFF2) Supply current (OFF)
REXT = 470 Ω
OUT 0 to 3 = OFF
5.2
8.0
IDD(OFF3)
REXT = 250 Ω
OUT 0 to 3 = OFF
8.0
12
IDD(ON1)
REXT = 470 Ω
OUT 0 to 3 = ON
5.6
8.0
REXT = 250 Ω
OUT 0 to 3 = ON
8.3
12
Supply current (ON)
IDD(ON2)
mA
7/24
Electrical characteristics
STP04CM596
Table 7. Switching characteristics (VDD=5V, T = 25°C, unless otherwise specified.)
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
tPLH1
Propagation delay time,
CLK-OUTn, LE = H, OE = L
100
160
ns
tPLH2
Propagation delay time,
LE-OUTn, OE = L
100
150
ns
tPLH3
Propagation delay time,
OE-OUTn, LE = H
90
140
ns
tPLH
Propagation delay time,
CLK-SDO
30
40
ns
tPHL1
Propagation delay time,
CLK-OUTn, LE = H, OE = L
40
60
tPHL2
Propagation delay time,
LE -OUTn, OE = L
tPHL3
Propagation delay time,
OE-OUTn, LE = H
tPHL
Propagation delay time,
CLK-SDO
tr
Output rise time (1)
tf
Output fall time (1)
VDD = 5 VVIH = VDD
VIL = GNDCL = 13pF
IO = 40mAVL = 3 V
REXT = 470 ΩRL = 65 Ω
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VO = 1.6 V, RL = 1 Ω
REXT = 470 Ω
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50
40
70
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55
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8/24
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40
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400
ns
80
ns
1. If multiple devices are cascaded, it may not be possible achieve the maximum data transfer. Please
consider the timing conditions carefully.
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-
ns
STP04CM596
5
Equivalent circuit of inputs and outputs
Equivalent circuit of inputs and outputs
Figure 3.
OE terminal
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Figure 4.
LE terminal
Figure 5.
CLK, SDI terminal
9/24
Equivalent circuit of inputs and outputs
Figure 6.
STP04CM596
SDO terminal
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10/24
STP04CM596
6
Timing diagrams
Timing diagrams
Figure 7.
Timing diagram
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Note:
The latches circuit holds data when the LE terminal is Low.
1
When the LE terminal is at a High level, the latch circuit holds the data it passes from the
input to the output.
2
When the OE terminal is at a Low level, the output terminals OUT0 to OUT3 respond to the
data, either ON or OFF.
3
When the OE terminal is at a High level, it switches off all the data on the output terminal.
11/24
Timing diagrams
Figure 8.
STP04CM596
Clock, serial-IN, serial-OUT
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12/24
STP04CM596
Figure 9.
Timing diagrams
Clock, serial-IN, latch, enable, outputs
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Figure 10. Outputs
13/24
Test circuit
7
STP04CM596
Test circuit
Figure 11. DC characteristic
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Figure 12. AC characteristic
14/24
STP04CM596
8
Typical characteristics
Typical characteristics
Figure 13. Output current-REXT resistor
Figure 14. Output current vs dropout
voltage
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Figure 15. Output current vs ±∆IOL(%)
15/24
Typical characteristics
STP04CM596
Figure 16. Blue powerLED typ. application circuit
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Note:
VL will be determined by the VF of the LEDs
Table 8. Typ. output waveform with blue powerLEDs
16/24
STP04CM596
9
Package mechanical data
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second level interconnect . The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com
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17/24
Package mechanical data
STP04CM596
Table 9. DIP-14 mechanical data
mm.
inch
Dim.
Min
a1
0.51
B
1.39
Typ
Max
Min
Typ
Max
0.020
1.65
0.055
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
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8.5
0.335
e
2.54
0.100
e3
15.24
0.600
F
7.1
0.280
I
5.1
0.201
L
Z
3.3
1.27
Figure 17. Package dimensions
18/24
0.130
2.54
0.050
0.100
STP04CM596
Package mechanical data
Table 10. SO-14 mechanical data
mm.
inch
Dim.
Min
Typ
A
a1
Max
Min
Typ
1.75
0.1
0.2
a2
Max
0.068
0.003
0.007
1.65
0.064
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
)
s
(
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d
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s
P
b
e
O
t
e
l
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o
s
(
s
t
b
c
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O
d
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s
P
(
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c
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t
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e
l
d
o
o
r
s
P
b
O
e
t
e
l
o
s
b
O
C
0.5
0.019
c1
45° (typ.)
D
8.55
8.75
0.336
0.344
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
7.62
0.300
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
S
0.68
0.026
8° (max.)
Figure 18. Package dimensions
19/24
Package mechanical data
STP04CM596
Table 11. TSSOP16 (Exposed pad) mechanical data
mm.
inch
Dim.
Min
Typ
Max
Min
Typ
Max
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
A1
0.05
A2
0.8
b
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.0079
D
4.9
5.1
0.193
1
5
0.197
0.201
)
s
(
t
c
u
d
o
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r
s
(
P
t
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l
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s
P
b
e
O
t
e
l
)
o
s
(
s
t
b
c
u
O
d
o
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r
s
P
(
t
c
e
t
u
e
l
d
o
o
r
s
P
b
O
e
t
e
l
o
s
b
O
E
6.2
6.4
6.6
0.244
0.252
0.260
E1
4.3
4.4
4.48
0.169
0.173
0.176
e
0.65 BSC
K
0°
L
0.45
0.60
Figure 19. Package dimensions
20/24
0.0256 BSC
8°
0°
0.75
0.018
8°
0.024
0.030
STP04CM596
Package mechanical data
Table 12. Tape and reel SO-14
mm.
inch
Dim.
Min
A
Typ
Max
Min
330
Max
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
13.2
Typ
0.504
22.4
0.519
0.882
)
s
(
t
c
u
d
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r
s
(
P
t
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s
P
b
e
O
t
e
l
)
o
s
(
s
t
b
c
u
O
d
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r
s
P
(
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t
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d
o
o
r
s
P
b
O
e
t
e
l
o
s
b
O
Ao
6.4
6.6
0.252
0.260
Bo
9
9.2
0.354
0.362
Ko
2.1
2.3
0.082
0.090
Po
3.9
4.1
0.153
0.161
P
7.9
8.1
0.311
0.319
Figure 20. Tape and reel dimensions
21/24
Package mechanical data
STP04CM596
Table 13. TSSOP16 tape and reel
mm.
inch
Dim.
Min
A
Typ
Max
Min
330
Max
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
13.2
Typ
0.504
22.4
0.519
0.882
)
s
(
t
c
u
d
o
)
r
s
(
P
t
c
e
t
u
e
d
l
o
o
r
s
P
b
e
O
t
e
l
)
o
s
(
s
t
b
c
u
O
d
o
)
r
s
P
(
t
c
e
t
u
e
l
d
o
o
r
s
P
b
O
e
t
e
l
o
s
b
O
Ao
6.7
6.9
0.264
0.272
Bo
5.3
5.5
0.209
0.217
Ko
1.6
1.8
0.063
0.071
Po
3.9
4.1
0.153
0.161
P
7.9
8.1
0.311
0.319
Figure 21. Tape and reel dimensions
22/24
STP04CM596
10
Revision history
Revision history
Table 14. Revision history
Date
Revision
Changes
26-Oct-2006
1
Initial release
05-Apr-2006
2
New template
23-May-2006
3
Updated packaging information
08-Jun-2006
4
Typos in cover page
Block diagram updated Figure 1 on page 3, equivalent circuits
updated Figure 3, 4, 5, 6, on page 9 and 10
)
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t
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s
(
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t
b
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d
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r
s
P
(
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t
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d
o
o
r
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P
b
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e
t
e
l
o
s
b
O
20-Jun-2006
5
23/24
STP04CM596
)
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(
t
c
u
d
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r
s
(
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t
c
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t
u
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d
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s
P
b
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t
e
l
)
o
s
(
s
t
b
c
u
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d
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)
r
s
P
(
t
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b
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b
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