MP103 MP103 P rMP103 o d u c t IInnnnoovvaa t i o n FFr roomm Power Operational Amplifiers FEATURES ♦ ♦ ♦ ♦ Low Cost Integrated Solution Output Current >10A Within SOA Internal Power Dissipation 35 W Per Channel 167V/µS Slew Rate APPLICATIONS ♦ Piezoelectric Actuation For Ink Jet Printer Nozzles GENERAL DESCRIPTION The MP103 is a high voltage, high output current dual channel operational amplifier for driving capacitive loads such as piezo devices use in ink jet printing applications. The MP103 utilizes proprietary IC’s combined with discrete semiconductor and passive elements on a thermally conductive insulated metal substrate, delivering very high power from a compact module. The amplifier gain is fixed at 65 V/V when the feedback pin is connected to the VOUT pin. Internal compensation provides optimum slew rate and insures stability. The only external components required are the current limit resistors RLIM, a series isolation resistor RS and the power supply bypass capacitors. EQUIVALENT CIRCUIT DIAGRAM Feedback A +Vs +Vs +Vs IL IL IL +Vaux IN_A -Vs -Vs -Vs Out A -5V GND +Vs +Vs Feedback B +Vs IL IL IL IN_B Out B -Vs -Vs -Vs Copyright © Cirrus Logic, Inc. 2009 MP103U(All Rights Reserved) http://www.cirrus.com SEP 2009 1 APEX − MP103UREVA MP103 P r o d u c t I n n o v a t i o nF r o m CHARACTERISTICS AND SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Parameter Symbol SUPPLY VOLTAGE, +VS to −VS Min +VS to −VS SUPPLY VOLTAGE, −VS −VS Max Units 200 V -30 V SUPPLY VOLTAGE, +VAUX +VAUX 30 V OUTPUT CURRENT, pk, per Channel (Within SOA) IO(PK) 15 A POWER DISSIPATION, internal, Each Channel PD 35 W INPUT VOLTAGE VIN -5 TEMPERATURE, pin solder, 10s TEMPERATURE, junction (Note 2) TEMPERATURE RANGE, storage TJ TS −40 VAUX V 225 °C 150 °C 105 °C SPECIFICATIONS Parameter Test Conditions Min Typ Max Units -6.7 ±2 6.7 mV -6.6 ±3.3 INPUT (Each Channel) OFFSET VOLTAGE Full temperature range OFFSET VOLTAGE vs. temperature BIAS CURRENT, initial (Note 3) ±2 INPUT RESISTANCE, DC µV/°C 6.6 300 INPUT CAPACITANCE KΩ 1.5 INPUT VOLTAGE RANGE -3.4 NOISE f = 10KHz µA pF +VAUX - 2 600 V nV/√Hz GAIN (Each Channel) FIXED GAIN Feedback connected to VOUT 63.5 65 66.5 V/V GAIN BANDWIDTH, -3db CL = 47nF 230 KHz POWER BANDWIDTH, 130VP-P +VS = 145V, -VS = -15V 230 KHz OUTPUT (Each Channel) VOLTAGE SWING IO = 10A +VS - 15 +VS - 9 V VOLTAGE SWING IO = -5A -VS + 15 -VS + 14 V 12 A CURRENT, Peak, Source SLEW RATE POWER SUPPLY VOLTAGE, -VS RS=1.0Ω, CL=47nF, VIN ≥ 8VP-P 167 -7 -15 -VS + 20 VOLTAGE, +VAUX VOLTAGE, +VS CURRENT, quiescent, -VS CURRENT, quiescent, +VAUX CURRENT, quiescent, +VS V/µS (Note 4) -20 V 24 25 V 145 -VS + 200 V 19 26 mA 13.5 15 mA 1 5 mA 2 MP103U MP103 P r o d u c t I n n o v a t i o nF r o m Parameter Test Conditions Min Typ Max Units 1.5 1.75 °C/W THERMAL RESISTANCE, AC, junction to case (Note 5) Full temperature range, f ≥ 60Hz RESISTANCE, DC, junction to case Full temperature range, f < 60Hz 3.1 3.6 °C/W RESISTANCE, junction to air Full temperature range 12.5 14 °C/W 70 °C TEMPERATURE RANGE, case 25 20 15 10 5 0 0 LEFT SCALE GAIN, A V (DB) 40 30 0 30 -30 20 -60 10 -90 RIGHT SCALE 0 -10 CLOAD = 50nF -20 1K 100K 10K FREQUENCY, F (Hz) SINK DC 1.04 1.02 1 -150 0.98 0.96 -25 -180 1M 130 120 110 VAUX -VS 0 25 50 75 CASE TEMPERATURE, TC (°C) MAX. OUTPUT PULSE DUTY CYCLE MAXIMUM DUTY CYCLE, DC (%) 140 +VS 1.06 -120 150 QUIESCENT CURRENT 1.1 1.08 MAX. DC OUTPUT VOLTAGE DC OUTPUT VOLTAGE, VO (Vdc) SOURCE DC 1 1 10 100 SUPPLY TO OUTPUT DIFFERENTIAL, VS - VO (V) 25 50 75 100 CASE TEMPERATURE, TC (°C) FREQUENCY RESPONSE 50 10mS 100 TC = 25°C TC = 70°C MP103U 100 0 25 50 75 CASE TEMPERATURE, TC (°C) 10 100 120 140 160 180 OUTPUT VOLTAGE, V (V) VOLTAGE DROP FROM SUPPLY (V) 30 1mS 10 OUTPUT VOLTAGE SWING 16 14 SINK 12 10 SOURCE 8 6 4 2 0 0 2.5 5 7.5 OUTPUT CURRENT, IO (A) 10 OFFSET VOLTAGE vs. TEMPERATURE NORMALIZED BIAS CURRENT, IB (X) EACH CHANNEL SOA 1.2 1.1 1.0 0.9 0.8 0.7 0.6 -40 -20 0 20 40 60 80 CASE TEMPERATURE, TC (°C) INPUT BIAS CURRENT vs. TEMPERATURE NORMALIZED BIAS CURRENT, IB (X) 35 POWER DERATING OUTPUT CURRENT FROM +VS OR -VS (A) 40 1. (All Min/Max characteristics and specifications are guaranteed over the Specified Operating Conditions. Typical performance characteristics and specifications are derived from measurements taken at typical supply voltages and TC = 25°C). 2. Long term operation at the maximum junction temperature will result in reduced product life. Derate power dissipation to achieve high MTTF. 3. Doubles for every 10°C of case temperature increase. 4. +VS and −VS denote the positive and negative supply voltages to the output stages. +VAUX denotes the positive supply voltage to the input stages. 5. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz. PHASE, (°) NORMALIZED QUIESCENT CURRENT, IQ (X) INTERNAL POWER DISSIPATION PER CHANNEL, PD (W) NOTES: 0 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 3 0.7 0.6 -40 -20 0 20 40 60 80 CASE TEMPERATURE, T (°C) -90 RIGHT SCALE 0 -10 MP103 C -20 1K LOAD = 50nF 100K 10K FREQUENCY, F (Hz) 1.02 -120 1 -150 0.98 -180 1M 120 110 100 0 25 50 75 CASE TEMPERATURE, TC (°C) OFFSET VOLTAGE vs. VS SUPPLY 1.035 1.030 1.025 1.020 1.015 1.010 1.005 1.000 INPUT BIAS CURRENT vs. VSS SUPPLY 1.0 0.8 0.6 0.4 0.2 0 5 30 55 80 105 130 155 180 205 TOTAL SUPPLY VOLTAGE, VSS (V) TC = 25°C TC = 70°C 10 100 120 140 160 180 OUTPUT VOLTAGE, VO (V) OFFSET VOLTAGE vs. VAUX SUPPLY 1.2 1.0 0.8 0.6 0.4 0.2 0 5 10 15 20 25 TOTAL SUPPLY VOLTAGE, VAUX (V) 105 1.2 AMPLIFIER GAIN, AV (V/V) NORMALIZED BIAS CURRENT, IB (X) 0.995 5 30 55 80 105 130 155 180 205 TOTAL SUPPLY VOLTAGE, VSS (V) MAX. OUTPUT PULSE DUTY CYCLE MAXIMUM DUTY CYCLE, DC (%) 130 0 25 50 75 CASE TEMPERATURE, TC (°C) 100 NORMALIZED OFSET VOLTAGE, VOS (X) DC OUTPUT VOLTAGE, VO (Vdc) NORMALIZED OFSET VOLTAGE, VCS (X) 140 -VS P r o d u c t I n n o v a t i o nF r o m 0.96 -25 MAX. DC OUTPUT VOLTAGE 150 VAUX NORMALIZED BIAS CUR 10 1.04 95 90 85 80 75 70 65 0 500 1000 1500 EXTERNAL FEEDBACK RESISTOR, RFDBK (Ω) 0.9 0.8 0.7 0.6 -40 -20 0 20 40 60 80 CASE TEMPERATURE, TC (°C) 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 -40 -20 0 20 40 60 80 CASE TEMPERATURE, TC (°C) INPUT BIAS CURRENT vs. VAUX SUPPLY 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 5 10 15 20 25 TOTAL SUPPLY VOLTAGE, VAUX (V) SLEW RATE vs. TEMPERATURE AMPLIFIER GAIN vs. RFDBK 100 1.0 INPUT BIAS CURRENT vs. TEMPERATURE NORMALIZED BIAS CURRENT, IB (X) -60 NORMALIZED BIAS CURRENT, IB (X) 20 1.06 450 SLEW RATE, SLR (V/µs) -30 PHASE, (°) NORMALIZED QUIESCENT CU GAIN, A V (DB 30 400 350 +SLR 300 250 -SLR 200 150 -40 -20 0 20 40 60 80 CASE TEMPERATURE, TC (°C) EXTERNAL CONNECTIONS 42-Pin DIP Package Style FC 4 MP103U MP103 P r o d u c t I n n o v a t i o nF r o m PIN DESCRIPTIONS Pin # Pin name Description 1,2,3 +VS _A 4,5,6 IL _A 8 15 18,19,20 21,22,23 Out_A Out_B +VS _B -VS _B 24,25,26 IL _B 28 IN_B 30 Feedback_B 32 GND 34 +VAUX 36 Feedback_A 38 IN_A Positive high voltage power supply pins for channel A. High current output pins for channel A. A current limit resistor must be placed between these pins and the output pin 8. Output pin for channel A. Output pin for channel B. Positive high voltage power supply pins for channel B. Negative power supply pins for channel B. High current output pins for channel B. A current limit resistor must be placed between these pins and the output pin 15. Input pin for channel B. Feed back pin for channel B. This pin must be connected to output B pin 15 to close the feedback loop. When connected directly to pin 15 the closed loop voltage gain of channel B is 65 V/V. The gain can be increased by inserting a 1/4 W resistor between pins 30 and 15. Ground +24V voltage power supply pin. A 24 V power supply is required for operation of front end small signal circuitry of each channel. Feed back pin for channel A. This pin must be connected to output A pin 8 to close the feedback loop. When connected directly to pin 8 the closed loop voltage gain of channel A is 65 V/V. The gain can be increased by inserting a 1/4 W resistor between pins 36 and 8. Input pin for channel A. 40,41,42 -VS _A Negative power supply pins for channel A. 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. AMPLIFIER GAIN When the feedback pin for each channel is connected to the corresponding OUT pin, the gain of the amplifier is internally set to 65 V/V. The amplifier gain can be increased by connecting a resistor between the feedback and Out pin. The amplifier gain will be increased approximately 1 V/V for each additional 49.9Ω added between the feedback and OUT pin. SAFE OPERATING AREA The MOSFET output stage of the MP103 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). 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. POWER SUPPLY BYPASSING Bypass capacitors to power supply terminals +VS and -VS must be connected physically close to the pins to prevent local parasitic oscillation in the output stage of the MP103. Use electrolytic capacitors at least 10μF per output amp required. Bypass the electrolytic capacitors with high quality ceramic capacitors (X7R) 0.1μF or greater. Duplicate the supply bypass for the supply terminals of each amplifier channel. A bypass capacitor of 0.1μF or greater is recommended for the +VAUX terminal. MP103U 5 MP103 P r o d u c t I n n o v a t i o nF r o m CURRENT LIMIT For proper operation, the current limit resistor (RLIM) must be connected as shown in the external connection diagram. For optimum reliability the resistor value should be set as high as possible. The value is calculated as follows; with the maximum practical value of 30Ω. The current limit function can be disabled by shorting the IL pin to the OUT pin. RLIM = 0.7/ILIM POWER SUPPLY PROTECTION Unidirectional zener diode transient suppressors are recommended as protection on the supply pins. 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 reversal as well as line regulation. Conditions which can cause open circuits or polarity reversals on either power supply rail should be avoided or protected against. Reversals or opens on the negative supply rail is known to induce input stage failure. Unidirectional transzorbs prevent this, and it is desirable that they be both electrically and physically as close to the amplifier as possible. SERIES ISOLATION RESISTOR, RS To insure stability with all capacitive loads a series isolation resistor should be included between the output and the load as shown in the external connections drawing. A 1Ω resistor works well for capacitive loads between 135pF and 44nF. The resistor will affect the rise and fall time of the output pulse at the capacitive load. This can be compensated for on the input signal. BACKPLATE GROUNDING The substrate of the MP103 is an insulated metal substrate. It is required that it be connected to signal ground. This is accomplished when the ground pin (Pin 32) is properly connected signal ground. 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). 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