K04RLM12 Datasheet, PDF (1/23 Pages) Texas Instruments – Operational Amplifier

OBSOLETE
K04RLM12, LM12CL
www.ti.com
SNOSBY8D – MAY 1999 – REVISED APRIL 2013
LM12CL 80W Operational Amplifier
Check for Samples: K04RLM12, LM12CL
FEATURES
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•2 Input Protection
• Controlled Turn On
• Thermal Limiting
• Overvoltage Shutdown
• Output-Current Limiting
• Dynamic Safe-Area Protection
DESCRIPTION
The LM12 is a power op amp capable of driving ±25V
at ±10A while operating from ±30V supplies. The
monolithic IC can deliver 80W of sine wave power
into a 4Ω load with 0.01% distortion. Power
bandwidth is 60 kHz. Further, a peak dissipation
capability of 800W allows it to handle reactive loads
such as transducers, actuators or small motors
without derating. Important features include:
The IC delivers ±10A output current at any output
voltage yet is completely protected against overloads,
including shorts to the supplies. The dynamic safe-
area protection is provided by instantaneous peak-
temperature limiting within the power transistor array.
The turn-on characteristics are controlled by keeping
the output open-circuited until the total supply voltage
reaches 14V. The output is also opened as the case
temperature exceeds 150°C or as the supply voltage
approaches the BV_CEO of the output transistors. The
IC withstands overvoltages to 80V.
This monolithic op amp is compensated for unity-gain
feedback, with a small-signal bandwidth of 700 kHz.
Slew rate is 9V/μs, even as a follower. Distortion and
capacitive-load stability rival that of the best designs
using complementary output transistors. Further, the
IC withstands large differential input voltages and is
well behaved should the common-mode range be
exceeded.
The LM12 establishes that monolithic ICs can deliver
considerable output power without resorting to
complex switching schemes. Devices can be
paralleled or bridged for even greater output
capability. Applications include operational power
supplies, high-voltage regulators, high-quality audio
amplifiers, tape-head positioners, x-y plotters or other
servo-control systems.
The LM12 is supplied in a four-lead, TO-220 package
with V− on the case. A gold-eutectic die-attach to a
molybdenum interface is used to avoid thermal
fatigue problems. The LM12 is specified for either
military or commercial temperature range.
Connection Diagram
Typical Application*
4-pin glass epoxy TO-3
socket is available from
AUGAT INC.
Part number 8112-AG7
TO-220
Bottom View
See Package Number NEP
*Low distortion (0.01%) audio amplifier
Figure 1.
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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