Datasheet

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1 OPA2544

High-Voltage, High-Current

DUAL OPERATIONAL AMPLIFIER

FEATURES

● HIGH OUTPUT CURRENT: 2A min

● WIDE POWER SUPPLY RANGE:

±10V to ±35V

● SLEW RATE: 8V/µs

● INTERNAL CURRENT LIMIT

● THERMAL SHUTDOWN PROTECTION

● FET INPUT: I

= 50pA max

● 11-LEAD PLASTIC PACKAGE

APPLICATIONS

● MOTOR DRIVER

● PROGRAMMABLE POWER SUPPLY

● SERVO AMPLIFIER

● VALVES, ACTUATOR DRIVER

● MAGNETIC DEFLECTION COIL DRIVER

● AUDIO AMPLIFIER

DESCRIPTION

The OPA2544 is a dual high-voltage/high-current op-

erational amplifier suitable for driving a wide variety

of high power loads. It provides 2A output current and

power supply voltage range extends to ±35V.

The OPA2544 integrates two high performance FET

op amps with high power output stages on a single

monolithic chip. Internal current limit and thermal

shutdown protect the amplifier and load from damage.

The OPA2544 is available in a 11-lead plastic

packages and is specified for the –40°C to +85°C

temperature range.

OPA2544

FPO

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111

Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

V+

V–

Case

connected

to V– Supply.

SBOS037

Summary of content (10 pages)

PAGE 1
® OPA2544 FPO High-Voltage, High-Current DUAL OPERATIONAL AMPLIFIER FEATURES DESCRIPTION ● HIGH OUTPUT CURRENT: 2A min ● WIDE POWER SUPPLY RANGE: ±10V to ±35V The OPA2544 is a dual high-voltage/high-current operational amplifier suitable for driving a wide variety of high power loads. It provides 2A output current and power supply voltage range extends to ±35V.
PAGE 2
SPECIFICATIONS At TCASE = +25°C and VS = ±35V, unless otherwise noted. OPA2544T PARAMETER CONDITIONS OFFSET VOLTAGE Input Offset Voltage vs Temperature vs Power Supply INPUT BIAS CURRENT(1) Input Bias Current vs Temperature Input Offset Current MIN Specified Temp.
PAGE 3
ABSOLUTE MAXIMUM RATINGS(1) CONNECTION DIAGRAM Front View 11-Lead Plastic Supply Voltage, V+ to V– ................................................................... 70V Output Current ................................................................. See SOA Curve Input Voltage .................................................... (V–) –0.7V to (V+) +0.7V Operating Temperature ................................................. –55°C to +125°C Storage Temperature ...........................................
PAGE 4
TYPICAL PERFORMANCE CURVES At TCASE = +25°C, VS = ±35V, unless otherwise noted.
PAGE 5
TYPICAL PERFORMANCE CURVES (CONT) At TCASE = +25°C and VS = ±35V, unless otherwise noted. POWER SUPPLY REJECTION vs FREQUENCY COMMON-MODE REJECTION vs FREQUENCY 120 100 Power Supply Rejection (dB) Common-Mode Rejection (dB) 110 90 80 70 60 50 100 V+ Supply 80 V– Supply 60 40 40 20 100 1k 10k Frequency (Hz) 100k 1M 1 10 GAIN-BANDWIDTH PRODUCT AND SLEW RATE vs TEMPERATURE 100 1k 10k Frequency (Hz) 100k 1M MAXIMUM OUTPUT VOLTAGE vs FREQUENCY 35 2.5 SR+ 8 1.
PAGE 6
TYPICAL PERFORMANCE CURVES (CONT) At TCASE = +25°C and VS = ±35V, unless otherwise noted. OUTPUT VOLTAGE SWING vs TEMPERATURE 6 IO = +2A |VSUPPLY| – |VOUT| (V) 5 IO = –2A 4 3 IO = +0.5A IO = –0.
PAGE 7
APPLICATIONS INFORMATION The safe output current decreases as VCE increases. Output short-circuit is a very demanding case for SOA. A shortcircuit to ground forces the full power supply voltage (V+ or V–) across the conducting transistor. With V S = ±35V the safe output current is 1.5A (at 25°C). The short-circuit current is approximately 4A which exceeds the SOA. This situation will activate the thermal shutdown circuit in the OPA2544. For further insight on SOA, consult AB-039.
PAGE 8
tion should trigger more than 25°C above the maximum expected ambient condition of your application. This produces a junction temperature of 125°C at the maximum expected ambient condition. OPA2544 are operated within their linear common-mode range, and that the output can swing to 0V. The V+ power supply could range from 15V to 63V. The total voltage (V– to V+) can range from 20V to 70V.
PAGE 9
PACKAGE OPTION ADDENDUM www.ti.com 13-Nov-2008 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty OPA2544T ACTIVE TO-220 KV 11 25 Green (RoHS & no Sb/Br) CU SN N / A for Pkg Type OPA2544TG3 ACTIVE TO-220 KV 11 25 Green (RoHS & no Sb/Br) CU SN N / A for Pkg Type Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
PAGE 10
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.