CIRRUS MP111

MP111 • MP111A
MP111
PP rr oo dd uu cc tt I nMP111A
n o v a tt ii oo nn FFrroomm
MP111,
Power Operational Amplifier
FEATURES
• LOW COST
• HIGH VOLTAGE - 100 VOLTS
• HIGH OUTPUT CURRENT- 50 AMP PULSE OUTPUT, 15
AMP CONTINUOUS
• 170 WATT DISSIPATION CAPABILITY
• 130 V/uS SLEW RATE
• 500kHz POWER BANDWIDTH
APPLICATIONS
• INKJET PRINTER HEAD DRIVE
• PIEZO TRANSDUCER DRIVE
• INDUSTRIAL INSTRUMENTATION
• REFLECTOMETERS
• ULTRA-SOUND TRANSDUCER DRIVE
TYPICAL APPLICATION
RF
+VS
DESCRIPTION
+Vb
4
GND
3
BACK
PLATE
2
TP
1
C1
R1
Cc2
R3
R5
INKJET NOZZLE DRIVE
D2
R10
R7
Q11
R11
Q16
IC1
GND 32
C3
R19
TP
5
6
7
8
9
10
+VB
CC1
CC2
NC
+VB
NC
NC
11
OUT OUT
12
13
14
15
16
+VS
+VS
+VS
-VS
-VS
-VS
19
18
17
VIEW FROM COMPONENT SIDE
-IN
+IN
GND
NC
-VB
NC +ILIM
-ILIM
NC
-VB
NC
NC
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
OUT OUT OUT
C7
RLIM
C8
+
17 -Vs
18 -Vs
-Vb 25
19 -Vs
C3
C4
LOAD &
FEEDBACK
-Vb 30
http://www.cirrus.com
BACK GND
PLT
OUT
4
Q22
Q21
R20
3
22 OUT
Q20
Q24
13 OUT
2
21 OUT
Q19
Q23
1
20 OUT
Q18
R12
C6
CC
12 OUT
27 -Ilim
R8
Q15B
+
C5
28 +Ilim
R17
MP111U
EXTERNAL CONNECTIONS
11 OUT
Q14
+IN 33
The MP111's fast slew rate and wide power bandwith make it
an ideal nozzle driver for industrial inkjet printers. The 50 amp
pulse output capability can drive hundreds of inkjet nozzles
simultaneously.
Q3
Q9
6
Q15A
PIEZO
TRANSDUCER
C2
Q8
R15
R9
+ILIM
C1
Q7
5
-IN 34
CC2
Q6
Q4
Q12 Q13
GND
RLIM
OUT
CC1
-VS
15 +Vs
Q2
-VB
-ILIM
CC
16 +Vs
D1
GND
-VS
14 +Vs
Q17
Q1B
Q1A
C5
SUBSTRATE
BACKPLATE
Cc1
R2
+VB
PRINT
NOZZLE
COMMAND
VOLTAGE
EQUIVALENT CIRCUIT DIAGRAM
8
+VS
RI
The MP111 operational amplifier is a surface mount constructed
component that provides a cost-effective solution in many industrial applications. The MP111 offers outstanding performance
that rivals much more expensive hybrid components yet has a
footprint of only 4 sq in. The MP111 has many optional features
such as four-wire current limit sensing and external compensation. The 500 kHz power bandwidth and 15 amp continuous
and 50A pulse output of the MP111 makes it a good choice
for piezo transducer drive applications. The MP111 is built on
a thermally conductive but electrically insulating substrate that
can be mounted to a heat sink.
+Vb
34-pin DIP
PACKAGE STYLE FD
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.
ALL OUTPUT PINS MUST BE TIED TOGETHER.
SEE PACKAGE OUTLINE FD IN THE OUTLINE DIMENSIONS DATASHEET.
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
PHASE COMPENSATION
CC
100pF
68pF
33pF
GAIN W/O BOOST
≥1
≥4
≥10
TYP. SLEW RATE
55 V/µS
60 V/µS
130 V/µS
CC
470pF
220pF
100pF
GAIN W BOOST
≥3
≥6
≥10
TYP. SLEW RATE
12 V/µS
27 V/µS
55 V/µS
MAY 20091
APEX − MP111UREVC
MP111
ABSOLUTE MAXIMUM RATINGS
P r o d u c t I n n o v a t i o nF r o m
EXTERNAL CONNECTIONS
SUPPLY VOLTAGE, +VS to -VS
SUPPLY VOLTAGE, +VB
SUPPLY VOLTAGE, -VB
OUTPUT CURRENT, peak
POWER DISSIPATION, internal, DC
INPUT VOLTAGE
DIFFERENTIAL INPUT VOLTAGE
TEMPERATURE, pin solder, 10s
TEMPERATURE, junction2
TEMPERATURE RANGE, storage
OPERATING TEMPERATURE, case
100V
+VS + 15V6
-VS – 15V6
50A, within SOA
170W
+VB to -VB
±25V
225°C.
175°C.
-40 to 105°C.
-40 to 85°C.
SPECIFICATIONS
PARAMETER
TEST CONDITIONS1
INPUT
OFFSET VOLTAGE
OFFSET VOLTAGE vs. temperature
OFFSET VOLTAGE vs. supply
BIAS CURRENT, initial3
BIAS CURRENT vs. supply
OFFSET CURRENT, initial
INPUT RESISTANCE, DC
INPUT CAPACITANCE
COMMON MODE VOLTAGE RANGE
COMMON MODE VOLTAGE RANGE
COMMON MODE REJECTION, DC
NOISE
1MHz bandwidth, 1kΩ RS
GAIN
OPEN LOOP @ 15Hz
GAIN BANDWIDTH PRODUCT @ 1MHz
PHASE MARGIN
RL = 10KΩ, CC = 33pF
CC = 33pF
Full temperature range
OUTPUT
VOLTAGE SWING
VOLTAGE SWING
VOLTAGE SWING
VOLTAGE SWING
CURRENT, continuous, DC
SLEW RATE, AV = -20
SETTLING TIME, to 0.1%
RESISTANCE
POWER BANDWIDTH 80VP-P
2
TYP
1
20
Full temperature range
1011
4
92
IO = 15A
IO = -15A
IO = 15A, +VB = +VS +10V
IO = -15A, -VB = -VS -10V
CC = 33pF
2V Step
No load, DC
CC = 33pF, +VS = 50V, -VS = -50V
POWER SUPPLY
VOLTAGE
CURRENT, quiescent
THERMAL
RESISTANCE, AC, junction to case5
RESISTANCE, DC, junction to case
RESISTANCE, junction to air
TEMPERATURE RANGE, case
MIN
10
96
6
45
MAX
UNITS
5
50
20
100
0.1
50
+VB - 15
-VB + 15
mV
µV/°C
µV/V
pA
pA/V
pA
Ω
pF
V
V
dB
µV RMS
dB
MHz
degrees
V
V
V
V
A
V/µS
µS
Ω
kHz
+VS - 10
-VS + 10
+VS - 0.8
-VS + 1.0
15
100
+VS - 8.4
-VS + 5.8
130
1
3
500
±15
±45
142
±50
157
V
mA
.65
.88
13
85
°C/W
°C/W
°C/W
°C
Full temperature range, f ≥ 60Hz
Full temperature range, f < 60Hz
Full temperature range
-40
MP111U
MP111
POWER DERATING
PHASE, Φ (°)
60
1 CC = 33pF
2 CC = 68pF
3 CC = 100pF
RL = 4Ω
IO = 1A
20
0
-40 -20 0 20 40 60 80 100
CASE TEMPERATURE, TC (°C)
0.001
30
MP111U
50
W
=1
O
10
P
O
P
0.01
=
AV = 10
CC = 33pF
VS = 50V
RL = 4Ω
W
HARMONIC DISTORTION
PO
=
5W
7
100
1K
10K 30K
FREQUENCY, F (Hz)
NORMALIZED QUIESCENT CURRENT, IQ (%)
96
TC = 25°C
92
TC = 85°C
88
TC = -40°C
84
20
40
60
80
100
TOTAL SUPPLY VOLTAGE, VS (V)
9
OUTPUT VOLTAGE SWING
8
OM +VS
7
W/O BOOST FR
OM -V S
T FR
W/O BOOS
6
5
TC=25°C
50mS PULSE
4
3
ST FROM -V S
2
WITH BOO
OM +V S
1 WITH BOOST FR
0
0
3
6
9
12
OUTPUT CURRENT, IO (A)
15
F
0.1
-25
0
25 50 75 100
CASE TEMPERATURE, TC (°C)
100
pF
70
-50
QUIESCENT CURRENT vs. SUPPLY
104
33p
80
10
10K
100 1K 10K 100K 1M 10M
FREQUENCY, F (Hz)
100
90
2
C C=
100
3
C C=
110
20
1
F
120
1 CC = 33pF
2 CC = 68pF
3 CC = 100pF
RL = 4Ω
IO = 1A DC
40
68p
CURRENT LIMIT
60
0
10
10 100 1K 10K 100K 1M 10M
FREQUENCY, F (Hz)
130
80
pF
1
100
10M
POWER RESPONSE
100
pF
0
120
1M
FREQUENCY, F (Hz)
470
20
-180
100K
220
40
2
10M
C C=
1 CC = 100pF
2 CC = 220pF
3 CC = 470pF
RL = 4Ω
IO = 1A DC
100K
1M
FREQUENCY, F (Hz)
2
C C=
3
60
1
1 CC = 33pF
2 CC = 68pF
3 CC = 100pF
RL = 4Ω
IO = 1A
-150
SMALL SIGNAL RESPONSE W/O BOOST
OPEN LOOP GAIN, A (dB)
100
80
-180
10K
-120
C C=
OPEN LOOP GAIN, A (dB)
-120
-150
40
-90 3
OUTPUT VOLTAGE, VO (VP-P)
80
1
2 3
NORMALIZED QUIESCENT CURRENT, IQ (%)
120
120
NORMALIZED CURRENT LIMIT, (%)
1
-90
100
PHASE RESPONSE W/O BOOST
-60
PHASE, Φ (°)
160
140
SMALL SIGNAL RESPONSE W/ BOOST
DISTORTION, THD (%)
PHASE RESPONSE W/ BOOST
-60
OUTPUT CURRENT FROM +VS OR -VS (A)
180
VOLTAGE DROP FROM SUPPLY, (V)
INTERNAL POWER DISSIPATION, P (W)
P r o d u c t I n n o v a t i o nF r o m
100K
1M
FREQUENCY, F(Hz)
5M
QUIESCENT CURRENT vs. TEMP.
130
120
VS
110
100
90
TOTAL
VB
80
-40 -20 0 20 40 60 80 100
CASE TEMPERATURE TC (°C)
50
SAFE OPERATING AREA
100S, TC=25°C
10
1mS, TC=25°C
10mS, TC=25°C
DC, TC=25°C
DC, TC=85°C
1
100
1
10
SUPPLY TO OUTPUT DIFFERENTIAL, VS-VO (V)
3
MP111
P r o d u c t I n n o v a t i o nF r o m
GENERAL
Please read Application Note 1 "General Operating Considerations" which covers stability, power supplies, heat sinking,
mounting, current limit, SOA interpretation, and specification
interpretation. Visit www.cirrus.com for design tools that help
automate tasks such as calculations for stability, internal power
dissipation, current limit, heat sink selection, Apex Precision
Power's complete Application Notes library, Technical Seminar
Workbook and Evaluation Kits.
GROUND PINS
The MP111 has two ground pins (pins 3, 32). These pins
provide a return for the internal capacitive bypassing of the
small signal portions of the MP111. The two ground pins are
not connected together on the substrate. Both of these pins
are required to be connected to the system signal ground.
SAFE OPERATING AREA
The MOSFET output stage of the MP111 is not limited by
second breakdown considerations as in bipolar output stages.
Only thermal considerations and current handling capabilities
limit the SOA (see Safe Operating Area graph on previous page).
The output stage is protected against transient flyback by the
parasitic body diodes of the output stage MOSFET structure.
However, for protection against sustained high energy flyback
external fast-recovery diodes must be used.
COMPENSATION
The external compensation capacitor CC is connected
between pins 5 and 6. Unity gain stability can be achieved with
any capacitor value larger than 100pF for a minimum phase
margin of 45 degrees. At higher gains more phase shift can
usually be tolerated in most designs and the compensation
capacitor value can be reduced resulting in higher bandwidth
and slew rate. Use the typical operating curves as a guide to
select CC for the application. An NPO (COG) type capacitor is
required rated for the full supply voltage (100V).
OVERVOLTAGE PROTECTION
Although the MP111 can withstand differential input voltages
up to ±25V, additional external protection is recommended. In
most applications 1N4148 signal diodes connected anti-parallel
across the input pins is sufficient. In more demanding applications where bias current is important diode connected JFETs
such as 2N4416 will be required. See Q1 and Q2 in Figure 1.
In either case the differential input voltage will be clamped to
±0.7V. This is usually sufficient overdrive to produce the maximum power bandwidth. Some applications will also need over
voltage protection devices connected to the power supply rails.
Unidirectional zener diode transient suppressors are recommended. The zeners clamp transients to voltages within the
power supply rating and also clamp power supply reversals to
ground. Whether the zeners are used or not the system power
supply should be evaluated for transient performance including
power-on overshoot and power-off polarity reversals as well as
line regulation. See Z1 and Z2 in Figure 1.
POWER SUPPLY BYPASSING
Bypass capacitors to power supply terminals +VS and -VS
must be connected physically close to the pins to prevent
4
local parasitic oscillation in the output stage of the MP111. Use
electrolytic capacitors at least 10µF per output amp required.
Bypass the electrolytic capacitors with high quality ceramic
capacitors (X7R) 0.1µF or greater. In most applications power
supply terminals +Vb and -Vb will be connected to +VS and
-VS respectively. Supply voltages +Vb and -Vb are bypassed
internally but both ground pins 3 and 32 must be connected to
the system signal ground to be effective. In all cases power to
the buffer amplifier stage of the MP111 at pins 8 and 25 must
be connected to +Vb and
-Vb at pins 4 and 30 respectively. Provide local bypass
capacitors at pins 8 and 25. See the external connections
diagram on page 1.
+Vs
Z1
RF
-IN
34
+Vs
3
+Vb
RIN
GND
Q2
OUT
34
IN
ILIM-
Q1
33
+IN
-Vs
-Vs
-Vb
GND
32
33
27
28
ILIM+
RP
OUT
11-13
20-22
RLIM
RL
Z2
FIGURE 1
OVERVOLTAGE PROTECTION
FIGURE 2
4 WIRE CURRENT LIMIT
CURRENT LIMIT
The two current limit sense lines are to be connected directly
across the current limit sense resistor. For the current limit to
work correctly pin 28 must be connected to the amplifier output
side and pin 27 connected to the load side of the current limit
resistor RLIM as shown in Figure 2. This connection will bypass
any parasitic resistances RP, formed by socket and solder joints
as well as internal amplifier losses. The current limiting resistor
may not be placed anywhere in the output circuit except where
shown in Figure 2. The value of the current limit resistor can
be calculated as follows: RLIM = .65/ILIMIT
BOOST OPERATION
With the boost feature the small signal stages of the amplifier
are operated at a higher supply voltages than the amplifier's
high current output stage. +Vb (pins 4,8) and -Vb (pins 25,30)
are connected to the small signal stages and +VS (pins 14-16)
and -VS (pins 17-19) are connected to the high current output
stage. An additional 10V on the +Vb and -Vb pins is sufficient
to allow the small signal stages to drive the output stage into
the triode region and improve the output voltage swing for extra
efficient operation when required. When the boost feature is
not needed +VS and -VS are connected to the +Vb and -Vb
pins respectively. The +Vb and -Vb pins must not be operated
at supply voltages less than +VS and -VS respectively.
BACKPLATE GROUNDING
The substrate of the MP111 is an insulated metal substrate.
It is required that it be connected to signal ground. Connect pin
2 (back plate) to signal ground. The back plate will then be AC
grounded to signal ground through a 1µF capacitor.
MP111U
P r o d u c t I n n o v a t i o nF r o m
MP111
Contacting Cirrus Logic Support
For all Apex Precision Power product questions and inquiries, call toll free 800-546-2739 in North America.
For inquiries via email, please contact [email protected]
International customers can also request support by contacting their local Cirrus Logic Sales Representative.
To find the one nearest to you, go to www.cirrus.com
IMPORTANT NOTICE
Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject
to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant
information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale
supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus
for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third
parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights,
copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent
does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED TO BE
SUITABLE FOR USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE
CUSTOMER OR CUSTOMER’S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES,
BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL
LIABILITY, INCLUDING ATTORNEYS’ FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES.
Cirrus Logic, Cirrus, and the Cirrus Logic logo designs, Apex Precision Power, Apex and the Apex Precision Power logo designs are trademarks of Cirrus Logic, Inc.
All other brand and product names in this document may be trademarks or service marks of their respective owners.
MP111U
5