MP39CLA [CIRRUS]

Operational Amplifier, 1 Func, 3000uV Offset-Max, Hybrid, DIP-30;


型号：	MP39CLA
厂家：	CIRRUS LOGIC
描述：	Operational Amplifier, 1 Func, 3000uV Offset-Max, Hybrid, DIP-30
文件：	总6页 (文件大小：570K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MP3_M9_P•₃₉M_•P_M3_P9₃A_9A

MP39, MP39A

Power Operational Amplifier

While the cost is low the MP39 offers many of the

same features and performance speciﬁcations found

in much more expensive hybrid power ampliﬁers.

FEATURES

• HIGH INTERNAL DISSIPATION — 125 Watts

• HIGH VOLTAGE, HIGH CURRENT — 100V, 10A

• HIGH SLEW RATE — 10V/µs

The metal substrate allows the MP39 to dissipate

power up to 125 watts and its power supply voltages

can range up to +/- 50 Volts (100V total). Optional

boost voltage inputs allow the small signal portion

of the ampliﬁer to operate at higher supply voltages

than the high current output stage. The ampliﬁer is

then biased to achieve close linear swings to the

supply rails at high current for extra efﬁcient opera-

tion. External compensation tailors performance to

the user needs. A four-wire sense technique allows

current limiting without the need to consider internal

or external mili-ohm parasitic resistance in the out-

put line. An Iq pin is available which can be used to

shut off the quiescent current in the output stage.

The output stage then operates class C and lowers

quiescent power dissipation. This is useful in appli-

cations where output crossover distortion is not im-

portant.

• 4 WIRE CURRENT LIMIT SENSING

• OPTIONAL BOOST VOLTAGE INPUTS

APPLICATIONS

• LINEAR AND ROTARY MOTOR DRIVES

• YOKE/MAGNETIC FIELD EXCITATION

• PROGRAMMABLE POWER SUPPLIES TO ±45V

• INDUSTRIAL AUDIO

• PACKAGE OPTION - DIP10 - DUAL-IN-LINE

DESCRIPTION

The MP39 is a cost-effective high voltage MOSFET power

operational ampliﬁer constructed with surface mount com-

ponents on a thermally conductive but electrically isolated

substrate.

EQUIVALENTꢀSCHEMATIC

+Vs

13 +Vs

+Vb

+Vs

Q1A

Q1B

GND

Cc2

Cc1

24 +Ilim

-Ilim

OUT

Q10B

-IN

Q10A

R10

+IN

Q11

R11

Q12

GND

-Vs

Q13

R12

Q14

R13

-Vb 26

JANꢀ2012

APEXꢀ−ꢀMP39UREVI

MP39Uꢀ ꢀ

ꢀ

1ꢀ

www.cirrus.com

MP39 • MP39A

ABSOLUTEꢀMAXIMUMꢀRATINGS

Parameter

SUPPLY VOLTAGE, +V_Sto –V_S

BOOST VOLTAGE

Symbol

Min

Max

100

Units

±V_S±20

OUTPUT CURRENT, within SOA

POWER DISSIPATION, internal

INPUT VOLTAGE, differential

INPUT VOLTAGE, common mode

TEMPERATURE, pin solder - 10s

125

-20

-V_B

+20

+V_B

200

°C

TEMPERATURE, junction

TEMPERATURE, storage

(Note 2)

175

-40

+105

+85

OPERATING TEMPERATURE RANGE, case

SPECIFICATIONS

MP38

MP38A

TestꢀConditionsꢀ

Parameter

(Note 1)

Minꢀ

Typ

Max

Minꢀ

Typ

Max Units

INPUT

OFFSET VOLTAGE, initial

OFFSET VOLTAGE,

vs. temperature

Full temp range

µV/°C

OFFSET VOLTAGE,

vs. supply

µV/V

OFFSET VOLTAGE,

vs. power

Full temp range

µV/W

BIAS CURRENT, initial

200

100

BIAS CURRENT,

vs. supply

.01

pA/V

OFFSET CURRENT, initial

INPUT IMPEDANCE, DC

INPUT CAPACITANCE

10¹⁰

Ω

COMMON MODE

VOLTAGE RANGE

Full temp range

±V +15 ±V +12

COMMON MODE

REJECTION, DC

Full temp, range,

V_CM= ±20V

INPUT NOISE

100kHz BW, R_S= 1KΩ

µVrms

GAIN

Full temp range,

C_C= 100pF

OPEN LOOP, @ 15Hz

113

MHz

kHz

GAIN BANDWIDTH PRODUCT I_O= 10A

R_L=10Ω, V_O=90V_P-P

C_C= 100pF

POWER BANDWIDTH

PHASE MARGIN

Full temp range

2ꢀ

ꢀ

ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀMP39U

MP39 • MP39A

MP38

Typ

MP38A

Typ

TestꢀConditionsꢀ

Parameter

(Note 1)

Minꢀ

Max

Minꢀ

Max Units

OUTPUT

VOLTAGE SWING

I _O=10A

±V +8.8 ±V +6.0

±V_B= ±V_S±10V,

I _O=10A

VOLTAGE SWING

±V +6.8 ±V +1.1

A _V=+1,10V step,

R _L=4Ω

SETTLING TIME to .1%

SLEW RATE

2.5

µS

V/µS

A_V= –10, C_C= 100pF

Full temp range,

A _V=+1

CAPACITIVE LOAD

RESISTANCE

Ω

CURRENT, CONTINUOUS

POWERꢀSUPPLY

VOLTAGE

Full temp range

±15

±40

±50

CURRENT, quiescent,

boost supply

CURRENT, quiescent, total

THERMAL

RESISTANCE, AC,

junction to case

Full temp range,

(Note 3) F>60Hz

°C/W

°C

RESISTANCE, DC,

junction to case

Full temp range,

F<60Hz

1.2

RESISTANCE,

junction to air

Full temp range

(Note 4)

Meets full range

speciﬁcation

TEMPERATURE RANGE, case

-40

+85

NOTES: * The speciﬁcation of MP39A is identical to the speciﬁcation for MP39 in applicable column to the left.

1. Unless otherwise noted: T_C= 25°C, R_C= 100Ω, C_C= 470pF. DC input speciﬁcations are ± value

given. Power supply voltage is typical rating. ±V_B= ±V_S.

2. Long term operation at the maximum junction temperature will result in reduced product life. Derate

internal power dissipation to achieve high MTTF. For guidance, refer to the heatsink data sheet.

3. Rating applies if the output current alternates between both output transistors at a rate faster than 60

Hz.

4. The MP39 must be used with a heat sink or the quiescent power may drive the unit to junction tem-

peratures higher than 175°C.

The MP39 is constructed from MOSFET transistors. ESD handling procedures must be observed.

CAUTION

MP39Uꢀ ꢀ

ꢀ

3ꢀ

MP39 • MP39A

EXTERNALꢀCONNECTIONS

10 11 12 13 14

COMPONENT SIDE VIEW

30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15

30-pinꢀDIP

PACKAGEꢀSTYLEꢀCL

* SEE "BYPASSING" PARAGRAPH

Phase Compensation

R_F

Gain

≥ 3

≥ 10

+50V

470pF

220pF

100pF

100Ω

Short

12-14

+V_S

+V_B

R_I

ULTRA-

SONIC

DRIVE

-I_LIM

+I_LIM

-IN

TYPICALꢀAPPLICATIONꢀꢀ

OUT

MP39

Ref: Application Note 25

15-17

C_C2

R_CL

+IN

C_C1

I_Q

The high power bandwidth and high voltage output

of the MP39 allows driving ultra-sonic transducers

via a resonant circuit including the transducer and a

matching transformer. The load circuit appears re-

sistive to the MP39.

C_C

-V_S

R_C

-V_B

18-20

-50V

TUNED

TRANSFORMER

ULTRA-SONIC AMPLIFIER

GENERAL

Please read Application Note 1 "General Operating Considerations" which covers stability, 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 selec-

tion; Apex Precision Power’s complete Application Notes library; Technical Seminar Workbook; and Evaluation Kits.

CURRENTꢀLIMIT

The two current limit sense lines are to be connected di-

rectly across the current limit sense resistor. Forꢀtheꢀcur-

rentꢀlimitꢀtoꢀworkꢀcorrectlyꢀpinꢀ24ꢀmustꢀbeꢀconnectedꢀ

toꢀtheꢀampliﬁerꢀoutputꢀsideꢀandꢀpinꢀ23ꢀconnectedꢀtoꢀtheꢀ

loadꢀsideꢀofꢀtheꢀcurrentꢀlimitꢀresistor,ꢀR_CL,ꢀasꢀshownꢀinꢀ

Figureꢀ1. This connection will bypass any parasitic resis-

tances, Rp, formed by sockets 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 1.

R_F

R_I

R_P

R_CL

INPUT

MP39

15–17

R_L

FIGURE 1. CURRENT LIMIT

The value of the current limit resistor can be calculated as

follows:

Iꢀ_LIMIT

R_CL

4ꢀ

ꢀ

ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀMP39U

MP39 • MP39A

TYPICALꢀPERFORMANCEꢀGRAPHS

POWER DERATING

HARMONIC DISTORTION

SOA

140

120

100

1mS

_V= 10

V_S= +/-36

R_LOAD= 8Ω

10mS

0.1

50mW

125°C

85°C

25°C

50W

0.01

0.001

0.1

100

10K

100K

100

CASE TEMPERATURE, T (°C)

FREQUENCY, F (Hz)

SUPPLY to OUTPUT DIFFERENTIAL, V_S-V_O(V)

PHASE RESPONSE

SMALL SIGNAL RESPONSE

POWER RESPONSE

-30

100

140

120

100

220pF

470pF

-60

470pF

100pF

-90

220pF

-120

-150

-180

-210

100pF

470pF

100pF

-20

-40

10 100 1K 10K 100K 1M 10M

FREQUENCY, F (Hz)

10 100 1K 10K 100K 1M 10M

FREQUENCY, F (Hz)

100

1000

FREQUENCY (kHz)

SLEW RATE VS. COMP.

OUTPUT VOLTAGE SWING

10Ω LOAD

100

200

300

400

500

EXT. COMPENSATION CAPACITOR (pF)

OUTPUT CURRENT, I_O(A)

BOOSTꢀOPERATION

With the V_Bfeature the small signal stages of the ampliﬁer are operated at higher supply voltages than the ampli-

ﬁer's high current output stage. +V_S(pins 12-14) and –V_S(pins 18-20) are connected to the high current output

stage. An additional 10V on the V_Bpins is sufﬁcient to allow the small signal stages to drive the output transistors

into saturation and improve the output voltage swing for extra efﬁcient operation when required. When close swing

to the supply rails is not required the +V_Band +V_Spins must be strapped together as well as the –V_Band –V_Spins.

The boost voltage pins must not be at a voltage lower than the V_Spins.

MP39Uꢀ ꢀ

ꢀ

5ꢀ

MP39 • MP39A

BYPASSING

Proper bypassing of the power supply pins is crucial for proper operation. Bypass the ±Vs pins with a aluminum

electrolytic capacitor with a value of at least 10µF per amp of expected output current. In addition a .47µF to 1µF

ceramic capacitor should be placed in parallel with each aluminum electrolytic capacitor. Both of these capacitors

have to be placed as close to the power supply pins as physically possible. If not connected to the Vs pins (See

BOOST OPERATION) the V_Bpins should also be bypassed with a .47µF to 1µF ceramic capacitor.

USINGꢀTHEꢀIqꢀPINꢀFUNCTION

Pin 25 (Iq) can be tied to pin 6 (Cc1) to eliminate the class AB biasing current from the output stage. Typically this

would remove 1-4 mA of quiescent current. The resulting decrease in quiescent power dissipation may be impor-

tant in some applications. Note that implementing this option will raise the output impedance of the ampliﬁer and

increase crossover distortion as well.

COMPENSATION

The external compensation components C_Cand R_Care connected to pins 4 and 6. Unity gain stability can be

achieved at any compensation capacitance greater than 470 pF with at least 60 degrees of phase margin. At higher

gains more phase shift can be tolerated in most designs and the compensation capacitance can accordingly be

reduced, resulting in higher bandwidth and slew rate.

APPLICATIONꢀREFERENCES

For additional technical information please refer to the following application notes.

AN01 General Operating Considerations

AN11 Thermal Techniques

AN38 Loop Stability with Reactive Loads

CONTACTINGꢀCIRRUSꢀLOGICꢀSUPPORT

For all Apex Precision Power product questions and inquiries, call toll free 800-546-2739 in North America.

For inquiries via email, please contact apex.support@cirrus.com.

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 con-

sent 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 PROP-

ERTY 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 PROD-

UCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUS-

TOMER’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.

6ꢀ

ꢀ

ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀMP39U

MP39CLA [CIRRUS]

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