L9375 [STMICROELECTRONICS]
PWM BASED PRPHL DRVR, PDSO36, LEAD FREE, SOP-36;
| 型号： | L9375 |
| 厂家： | 
ST |
| 描述： | PWM BASED PRPHL DRVR, PDSO36, LEAD FREE, SOP-36 光电二极管 |
| 文件： | 总10页 (文件大小：168K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
L9375
Eight channel valve driver
Data Brief
Features
■ Octal low-side output drivers with protection
diagnostic
– 4 x 3A, 160m Ohm typ.
– 4 x 3A, 200m Ohm typ.
PowerSO-36
PowerSSO-36
■ Programmable channel timer
■ Clock monitor
■ 4 channels with Integrated recirculation diodes
program two output Duty Cycles per channel with
a block of 16 SPI commands as well as an
individual duration time for each channel
actuation. Both information are stored in the PWM
and in the Counter Configuration Register
respectively.
The PWM Controller translates the programmed
digital duty cycle value in a PWM signal which
controls the output.
■ 4 channels with 40V clamp for fast free
wheeling of inductive loads.
■ Serial Peripheral Interface with 16bits, up to
5MHz with diagnosis
■ Battery compatible supply voltage
■ Detailed Load diagnosis
– Over load protection
– Open load
The channels 1 to 4 are configured as switching
channels. To achieve a fast switch off a high
voltage output clamp is implemented for a rapid
free-wheeling if the inductive load. The switch on
time can be programmed via SPI.
– Under current
– Under voltage
– Temperature warning and shutdown
– Power or signal GND loss
– Freewheeling diode loss
All channels are equipped with a load diagnostic.
This allows to detect an open load in off condition
as well as a under current in on condition. The
power stage is protected against over current and
over temperature. A weak connection in power
ground, in the recirculation path or in the external
clock is monitored and leads to a switch off of the
power stages in case an error occurs. All
monitored functions can be read out in a serial
diagnostic protocol dedicated for each channel
via SPI.
Description
The L9375 s a eight channel low side driver with
integrated recirculation diodes for PWM controlled
channels 5 to 8. The switching of the channels is
programmable via a SPI (Serial Peripheral
Interface). The main time base is given by an
external clock via CLKin. The Clock Unit monitors
this external clock and provides the system clock
for all timings. A Synchronization Unit is used to
monitor the SPI communication and provide a
sync signal for the channel activation.
Table 1.
Device summary
Package
Part number
Packing
The output Duty Cycle for each PWM controlled
channel can be programmed individually and will
be activated by the Set Point Unit. Is possible to
L9375
PowerSO-36 (slug down)
PowerSSO-36 (exp. pad)
Tube
Tube
L9375XP
June 2007
Rev 1
1/10
For further information contact your local STMicroelectronics sales office.
www.st.com
10
Block diagram
L9375
1
Block diagram
Figure 1.
Block diagram
e v
e v
e v
e v
e v
e v
e v
h c e t i d w v S a l
h c e t i d w v S a l
h c e t i d w v S a l
h c e t i d w v S a l
e l d r v o a l l o n c t M W P
e l d r v o a l l o n c t M W P
e l d r v o a l l o n c t M W P
e l d r v o a l l o n c t M W P
e v
n o i t c e
e s T / I P S N Y C S / /
r r o r D a e r t d a E t n d S / o d M i
e t r s C g L i K e R e a g D n o i s
t
e t r s g i
e t r s g i
e t r s g i
o i n R e g i u r a t C M o n W f P
o i n a R t e g i u n r f C o C o u n t
g i u r e R e o i t n a C c o n u f n m i C o m
2/10
L9375
Pins description
2
Pins description
Figure 2.
Pins connection (top view)
1
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
NC
Q1
PGND
2
Q5
3
Q1
Q5
4
Q2
D5
5
Q2
D5
6
Q6
SGND
EN
7
Q6
8
NC
SPICS
MISO
MOSI
SPICLK
CLKIN
VS
9
D8/D6
D8/D6
NC
10
11
12
13
14
15
16
17
18
Q8
Q8
Q4
D7
Q4
D7
Q3
Q7
Q3
Q7
NC
PGN
D06AT547
Table 2.
Pin No.
Pins description
Name
Description
1
2
NC
Q1
Not connected.
Output.
3
Q1
Output.
4
Q2
Output.
5
Q2
Output.
6
Q6
Output.
7
Q6
Output.
8
NC
Not connected.
Free wheeling diode.
Free wheeling diode.
9
D8/D66
D8/D66
10
11
12
13
Q8
Q8
Output.
Output.
3/10
Pins description
L9375
Table 2.
Pin No.
Pins description (continued)
Name
Description
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Q4
Q4
Output.
Output.
Q3
Output.
Q3
Output.
NC
Not connected.
Power ground.
Output.
PGND
Q7
Q7
Output.
D7
Output.
D7
Output.
VS
Supply pin
Input for precise clock.
SPI communication clock.
CLKIN
SPICLK
MOSI
MISO
SPICS
EN
Input Master Out Slave Input for SPI communication.
Master In Slave Out out for SPI communication.
SPI Chip Select.
Enable
SGND
D5
Signal ground.
Free wheeling diode.
Free wheeling diode.
Output.
D5
Q5
Q5
Output.
PGND
Power ground.
4/10
L9375
Absolute maximum ratings
3
Absolute maximum ratings
3.1
Voltage ratings
Table 3.
Symbol
Voltage ratings
Parameter
Min
Max
Unit
Vs
Supply voltage
-0.3
-0.3
-0.3
38
35
35
V
V
V
VDx
VQx
VEN
Freewheeling diode voltage
Output voltage
Enable voltage
VSPICLK SPI clock voltage
VSPICS SPI chip select voltage
VMOSI SPI MOSI voltage
VMISO SPI MISO voltage
VCLKIN SPI clock input voltage
-0.3
6
V
Warning: Transients beyond this limit will cause currents into ESD
structures which must be limited externally to 10 mA
(maximum energy to be dissipated: 2 mJ).
3.2
Current ratings
Table 4.
Symbol
Current ratings
Parameter
Min
Max
Unit
IQ
Output current at reversal voltage
-2
A
IEN_CL
ISPICLK_CL
Input clamping currents (static)
- 3
+ 3
ISPICS_CL
IMOSI_CL
ICLKIN_CL
mA
Input clamping currents (dynamic)
-10
+10
Definition:
current from outside towards the L9375
-> " + "
Current from L9375 towards ext. components -> " - "
5/10
Absolute maximum ratings
L9375
3.3
ESD susceptibility
3.3.1
HBM
ESD susceptibility HBM according to EIA/JESD 22-A 114B
Table 5.
HBM
Symbol
VQHBM
VLHBM
Parameter
Condition
Min
Max
Unit
PGND12, PGND3, PGND4, LGND
and GND are connected together.
Output pins DX; QX;
Logic Pins
4
2
kV
kV
all Pins
3.3.2
MM
ESD susceptibility according to EIA/JESD22-A115-A
Table 6.
Symbol
VMM
MM
Parameter
Condition
Min
250
Max
Unit
Machine Model (MM)
All pins
V
6/10
L9375
Package informations
4
Package informations
®
In order to meet environmental requirements, ST offers this device in ECOPACK package.
This package has 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.
Figure 3.
PowerSO-36 Mechanical data & package dimensions
mm
inch
DIM.
MIN.
TYP. MAX. MIN.
3.60
TYP. MAX.
0.1417
0.0118
0.1299
0.0039
0.0150
0.0126
0.6299
0.3858
0.5709
0.4370
0.1142
0.2441
0.0256
0.4350
0.0039
0.6260
0.0433
0.0433
OUTLINE AND
MECHANICAL DATA
A
a1
a2
a3
b
0.10
0.30 0.0039
3.30
0
0.10
0.22
0.23
15.80
9.40
13.90
10.90
0.38 0.0087
0.32 0.0091
16.00 0.6220
9.80 0.3701
14.5 0.5472
11.10 0.4291
2.90
c
D
D1
E
E1
E2
E3
e
5.80
6.20 0.2283
0.65
e3
G
11.05
0
0.10
H
15.50
15.90 0.6102
1.10
h
L
0.8
1.10 0.0315
10˚ (max)
8˚ (max)
N
s
PowerSO-36
Note: “D and E1” do not include mold flash or protusions.
- Mold flash or protusions shall not exceed 0.15mm (0.006”)
- Critical dimensions are "a3", "E" and "G".
0096119 C
7/10
Package informations
Figure 4.
L9375
PowerSSO-36 Mechanical data & package dimensions
mm
inch
TYP. MAX.
0.097
DIM.
MIN.
2.15
2.15
0
0.18
0.23
10.10
TYP. MAX. MIN.
2.47 0.084
2.40 0.084
OUTLINE AND
MECHANICAL DATA
A
A2
a1
b
0.094
0.003
0.014
0.012
0.075
0
0.36 0.007
0.32 0.009
10.50 0.398
c
(1)
0.413
D
(1)
E
7.4
7.6
0.291
0.299
e
e3
F
G
G1
H
h
0.50
8.50
2.3
0.020
0.035
0.090
0.004
0.002
0.413
0.016
0.033
0.169
0.10
0.06
10.50 0.398
0.40
10.10
0.55
L
0.85 0.022
M
N
O
Q
S
T
U
X
4.3
10˚ (max)
1.2
0.8
2.9
3.65
1.0
0.047
0.031
0.114
0.144
0.039
0.185
0.279
4.10
6.50
4.70 0.161
7.10 0.256
Y
PowerSSO-36
(exposed pad)
(1) “D and E” do not include mold flash or protusions.
Mold flash or protusions shall not exceed 0.15mm (0.006”)
(2) No intrusion allowed inwards the leads.
(3) Flash or bleeds on exposed die pad shall not exceed 0.4 mm
per side
7587131 A
8/10
L9375
Revision history
5
Revision history
Table 7.
Date
5-Jun-2007
Document revision history
Revision
Changes
1
Initial release.
9/10
L9375
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