MP108 • MP108A
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MP108 • MP108A
Power Operational Amplifier
FEATURES
• LOW COST
• HIGH VOLTAGE - 200 VOLTS
• HIGH OUTPUT CURRENT - 10 AMPS
• 100 WATT DISSIPATION CAPABILITY
• 300kHz POWER BANDWIDTH
APPLICATIONS
• INKJET PRINTER HEAD DRIVE
• PIEZO TRANSDUCER DRIVE
• INDUSTRIAL INSTRUMENTATION
• REFLECTOMETERS
34-PIN DIP
PACKAGE STYLE FD
TYPICAL APPLICATION
RF
• ULTRA-SOUND TRANSDUCER DRIVE
+VS
DESCRIPTION
TheMP108operationalamplifierisasurfacemountconstructed
component that provides a cost effective solution in many indus-
trial applications. The MP108 offers outstanding performance
that rivals much more expensive hybrid components yet has a
footprint of only 4 sq in.The MP108 has many optional features
suchasfour-wirecurrentlimitsensingandexternalcompensation.
The 300 kHz power bandwidth and 10 amp output of the MP108
makes it a good choice for piezo transducer drive applications.
The MP108 is built on a thermally conductive but electrically
insulating substrate that can be mounted to a heat sink.
+VS
RI
+VB
GND
GND
PRINT
-ILIM
CC2
RLIM
NOZZLE
COMMAND
VOLTAGE
OUT
CC1
+ILIM
PIEZO
TRANSDUCER
-VB
-VS
CC
EQUIVALENT CIRCUIT DIAGRAM
8
+Vb
-VS
4
+Vb
14 +Vs
15 +Vs
C1
R1
D1
R2
Q17
Q2
INKJET NOZZLE DRIVE
The MP108's fast slew rate and wide power bandwith make
it an ideal nozzle driver for industrial inkjet printers.The 10 amp
outputcapabilitycandrivehundredsofnozzlessimultaneously.
3
2
GND
R3
BACK
PLATE
Q1B
Q1A
+Vs
16
C5
1
TP
Q6
Q9
Q7
Q8
Q4
R5
SUBSTRATE
BACKPLATE
Q3
EXTERNAL CONNECTIONS
11 OUT
12 OUT
Cc1
Cc2
5
6
R15
C1
+
D2
C2
C5
13 OUT
28 +Ilim
Q12 Q13
R7
R8
C6
Q11
Q16
Q14
CC
OUT OUT OUT
R9
27 -Ilim
Q15A
R10
Q15B
R11
2
4
6
7
8
10
11
12
13
15
+VS +VS
16
1
3
5
9
14
-IN 34
C
C1
CC
2
NC
+VB
NC
NC
+VS
TP BACK GND +VB
PLT
OUT
20
IC1
VIEW FROM COMPONENT SIDE
21 OUT
22 OUT
-VS
19
-VS
18
-VS
17
GND NC
-VB
30
NC +ILIM -ILIM
28
27
-VB
25
NC
24
NC
23
-IN +IN
NC
26
Q18
Q21
R12
32
31
22
21
20
34
33
29
+IN
33
Q19
Q20
OUT OUT OUT
R17
Q22
RLIM
C7
C8
Q23
R19
Q24
GND 32
-Vb 30
C3
-Vs
-Vs
-Vs
17
R20
C3
C4
+
18
19
LOAD &
FEEDBACK
PHASE COMPENSATION
-Vb
25
NOTES:
CC IS NPO (COG) RATED FOR FULL SUPPLY VOLTAGE +VS TO -VS
BOTH PINS 3 AND 32 REQUIRED CONNECTED TO SIGNAL GROUND
C2 AND C3 ELECTROLYTIC 10µF PER AMP OUTPUT CURRENT
C1,C4,C5-8 HIGH QUALITY CERAMIC 0.1µF
CC
GAIN W/O BOOST
TYP. SLEW RATE
55 V/µS
135 V/µS
170 V/µS
100pF
33pF
10pF
1
4
10
ALL OUTPUT PINS MUST BE TIED TOGETHER
CC
GAIN W BOOST
TYP. SLEW RATE
12 V/µS
35 V/µS
135 V/µS
470pF
220pF
33pF
1
3
10
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
MAY 2009
1
APEX − MP108UREVD
MP108U
http://www.cirrus.com