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P r o d u c t I n n o v a t i o n F r o m PB58 • PB58A PB58U 1 PB58, PB58A
FEATURES
- WIDE SUPPLY RANGE — ±15V to ±150V
- HIGH OUTPUT CURRENT — 1.5A Continuous (PB58) 2.0A Continuous (PB58A)
- VOLTAGE AND CURRENT GAIN
- HIGH SLEW — 50V/µs Minimum (PB58) 75V/µs Minimum (PB58A)
- PROGRAMMABLE OUTPUT CURRENT LIMIT
- HIGH POWER BANDWIDTH — 320 kHz Minimum
- LOW QUIESCENT CURRENT — 12mA Typical
- EVALUATION KIT — See EK50
APPLICATIONS
- HIGH VOLTAGE INSTRUMENTATION
- Electrostatic TRANSDUCERS & DEFLECTION
- Programmable Power Supplies Up to 280V p-p
DESCRIPTION
The PB58 is a high voltage, high current amplifier designed to provide voltage and current gain for a small signal, general purpose op amp. Including the power booster within the feed- back loop of the driver amplifier results in a composite amplifier with the accuracy of the driver and the extended output voltage range and current capability of the booster. The PB58 can also be used without a driver in some applications, requiring only an external current limit resistor to function properly. The output stage utilizes complementary MOSFETs, pro- viding symmetrical output impedance and eliminating second breakdown limitations imposed by Bipolar Transistors. Internal feedback and gainset resistors are provided for a pin-strapable gain of 3. Additional gain can be achieved with a single external resistor. Compensation is not required for most driver/gain configurations, but can be accomplished with a single external capacitor. Enormous flexibility is provided through the choice of driver amplifier, current limit, supply voltage, voltage gain, and compensation. This hybrid circuit utilizes a beryllia (BeO) substrate, thick film resistors, ceramic capacitors and semiconductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded aluminum wires provide reliable inter - connections at all operating temperatures. The 8-pin TO-3 package is electrically isolated and hermetically sealed using one-shot resistance welding. The use of compressible isolation washers voids the warranty. TYPICAL APPLICATION Figure 1 . Inverting composite amplifier. EQUIVALENT SCHEMATIC EXTERNAL CONNECTIONS IN GAIN COM COMP Q10Q9 +Vs OUT CL –Vs Q11 6.2K 50K 3.1K 6 7 TOP VIEW CL+VS IN COM –VS GAIN RG COMP CC OUT RCL OP AMP PB58 CF RF VIN RI +15V –15V IN COM +Vs –Vs RCL OUT CC RG RL 8-PIN TO-3 PACKAGE STYLE CE Power Booster Amplifier PB58 • PB58AP r o d u c t I n n o v a t i o n F r o m Copyright © Cirrus Logic, Inc. 2009 (All Rights Reserved)http://www.cirrus.com MAY 2009 APEX − PB58UREVK
P r o d u c t I n n o v a t i o n F r o m PB58 • PB58A
2 PB58U
SUPPL Y VOLTAGE, +VS to –VS 300V OUTPUT CURRENT, within SOA 2.0A POWER DISSIPATION, internal at TC = 25°C1 83W INPUT VOLTAGE, referred to COM ±15V TEMPERATURE, pin solder—10 sec max 300°C TEMPERATURE, junction1 175°C TEMPERATURE, storage –65 to +150°C OPERATING TEMPERATURE RANGE, case –55 to +125°C SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PB58 PB58A PARAMETER TEST CONDITIONS2 MIN TYP MAX MIN TYP MAX UNITS INPUT OFFSET VOLTAGE, initial ±.75 ±1 .75 * ±1 .0 V OFFSET VOLTAGE, vs. temperature Full temperature range 3 –4.5 –7 * * mV/°C INPUT IMPEDANCE, DC 25 50 * * kΩ INPUT CAPACITANCE 3 * pF CLOSED LOOP GAIN RANGE 3 10 25 * * * V/V GAIN ACCURACY , internal Rg, Rf A V = 3 ±10 ±15 * * % GAIN ACCURACY , external Rf A V = 10 ±15 ±25 * * % PHASE SHIFT f = 10kHz, AVCL = 10, CC = 22pF 10 * ° f = 200kHz, AVCL = 10, CC = 22pF 60 * ° OUTPUT VOLTAGE SWING Io = 1 .5A (PB58), 2A (PB58A) V S–11 V S –8 VS–15 VS–11 V VOLTAGE SWING Io = 1A VS–10 V S –7 * * V VOLTAGE SWING Io = .1A VS–8 V S –5 * * V CURRENT, continuous 1 .5 2.0 A SLEW RATE Full temperature range 50 100 75 * V/µs CAPACITIVE LOAD Full temperature range 2200 * pF SETTLING TIME to .1% RL = 100Ω, 2V step 2 * µs POWER BANDWIDTH VC = 100 Vpp 160 320 240 * kHz SMALL SIGNAL BANDWIDTH C C = 22pF , AV = 25, Vcc = ±100 100 * kHz SMALL SIGNAL BANDWIDTH C C = 22pF , AV = 3, Vcc = ±30 1 * MHz POWER SUPPLY VOLTAGE, ±V S
4 Full temperature range ±156 ±60 ±150 * * * V
CURRENT, quiescent VS = ±15 11 * mA VS = ±60 12 * mA VS = ±150 14 18 * * mA THERMAL RESISTANCE, AC junction to case 5 Full temp. range, f > 60Hz 1 .2 1 .3 * * °C/W RESISTANCE, DC junction to case Full temp. range, f < 60Hz 1 .6 1 .8 * * °C/W RESISTANCE, junction to air Full temperature range 30 * °C/W TEMPERATURE RANGE, case Meets full range specifications –25 25 85 * * * °C NOTES: * The specification of PB58A is identical to the specification for PB58 in applicable column to the left. 1 . Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF (Mean Time to Failure). 2. The power supply voltage specified under typical (TYP) applies, TC = 25°C unless otherwise noted. 3. Guaranteed by design but not tested. 4. +VS and –VS denote the positive and negative supply rail respectively. 5. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz. 6. +VS/–VS must be at least 15V above/below COM. The PB58 is constructed from MOSFET transistors. ESD handling procedures must be observed. The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or subject to temperatures in excess of 850°C to avoid generating toxic fumes. CAUTION
P r o d u c t I n n o v a t i o n F r o m PB58 • PB58A PB58U 3 –25 0 25 50 75 100 POWER DERATING INTERNAL POWER DISSIPATION, P(W) –25 25 125 1.5 CURRENT LIMIT SLEW RATE, SR (V/µs) 100 10M FREQUENCY, F (Hz) SMALL SIGNAL RESPONSE OPEN LOOP GAIN, A (dB) 1K 10K 10M –10 SMALL SIGNAL RESPONSE 1K 10K 10M FREQUENCY, F (Hz) –180 100K 1M 10M FREQUENCY, F (Hz) 300 POWER RESPONSE OUTPUT VOLTAGE, VQ (VP-P) 100 200 TIME, t (µs) -80 PULSE RESPONSE 300 3K 30K FREQUENCY, F (Hz) .001 HARMONIC DISTORTION DISTORTION, THD (%) .01 .03 –25 75 CASE TEMPERATURE, TC (°C) QUIESCENT CURRENT 1000 25 INPUT OFFSET VOLTAGE INPUT OFFSET VOLTAGE, VOS (V) .01 .05 2 OUTPUT CURRENT, IO (A) OUTPUT VOLTAGE SWING VOLTAGE DROP FROM SUPPLY, VS - VO (V) 300K 3M 1K .003 SLEW RATE VS. TEMP. 300 400 100 200 0 50 75 100 SMALL SIGNAL RESPONSE 100K 1 1.5 -1.5 1K 10K 100K 1M 125 100K 1M FREQUENCY, F (Hz) CLOSED LOOP GAIN, A (dB) CURRENT LIMIT, ILIM (A) 50 125 -.5 –135 –90 –45 10K CASE TEMPERATURE, TC (°C) CASE TEMPERATURE, TC (°C) OPEN LOOP PHASE, Ф (°) –180 –135 –90 –45 CLOSED LOOP PHASE, Ф (°) AVCL = 10 AVCL = 3 AVCL = 25 AVCL = 25 AVCL = 10 AVCL = 3 VO + VO - QUIESCENT CURRENT, IQ (mA) Vs = 100V Vs = 30V CASE TEMPERATURE, TC (°C) –25 75 1000 25 50 125 Vs = 150V –25 75 CASE TEMPERATURE, TC (°C) 1000 25 50 125 DRIVER = TL070 VS = 60V VO = 95VP-P 100 R CL = .47Ω R CL = .68Ω RCL = 1.5Ω CC = 22pF CC = 22pF 2 3 4 5 6 7 8 -60 -40 -20 OUTPUT VOLTAGE, VQ (V) RL = 35Ω RL = 1KΩ -SLEW +SLEW
4 PB58U
1 . Operate the booster in the lowest practical gain.
- Operate the driver amplifier in the highest practical effective
- Keep gain-bandwidth product of the driver lower than the
closed loop bandwidth of the booster.
- Minimize phase shift within the loop.
and loop compensation capacitors Cc and Cf when required. Typical values are 5pF to 33pF . square wave response with the op amp drivers listed. Figure 2. Non-inverting composite amplifier. equal to the booster slew rate. calculating maximum available driver swing. Workbook; and Evaluation Kits. NOTE: The output stage is protected against transient flyback. flyback, external fast-recovery diodes should be used. are gain, stability, slew rate, and output swing of the driver. driver, but makes stability more difficult to achieve. to the composite gain divided by the booster gain.
P r o d u c t I n n o v a t i o n F r o m PB58 • PB58A PB58U 5 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 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.