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Sprague ULN3755W Dual Power Op Amp 3.5A Peak 12-Pin Power-Tab SIP

Sprague ULN3755W Dual Power Op Amp 3.5A Peak 12-Pin Power-Tab SIP

Regular price $19.99 USD
Regular price Sale price $19.99 USD
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4 in stock

ITEM SPECIFICS
Brand: Sprague
MPN: ULN3755W
Series: ULN3755
Type: Dual Power Operational Amplifier
Number of Amplifiers: 2
Package: 12-Pin Power-Tab SIP
Mounting Type: Through Hole
Supply Type: DC
Operating Supply Range: ±3 to ±20 V DC
Peak Output Current: ±3.5 A, 50 ms maximum
Operating Temperature Range: -20°C to +85°C
Unity-Gain Stable: Yes
Protection: Output current limiting, output protection diodes, thermal shutdown
Visible Front Marking: ULN 3755W / 8916
Visible Rear Marking: PHIL / D849 / 18
Quantity: 1
Condition: New

DESCRIPTION
Sprague ULN3755W dual power operational amplifier in a 12-pin single in-line power-tab package. This device contains two high-current amplifier circuits designed for linear servo loads, including voice coil motors. Manufacturer-documented applications also include motor drivers, audio power amplifiers, power oscillators, and linear voltage regulators.

Separate supply connections for the input and output stages support boost or bootstrapping arrangements to increase output swing. Current-sense connections support feedback for transconductance operation. The photographed component has a metal mounting tab with two mounting holes.

Features:
Two power operational amplifiers in one package.
Operating supply range of ±3 to ±20 V DC.
Peak output current up to ±3.5 A for 50 ms.
Unity-gain stable with low crossover distortion.
Output current sensing and current limiting.
Internal thermal shutdown and output protection diodes.
Power-tab package for attachment to suitable heat sinking.

Compatibility:
For circuits specifically designed for the ULN3755W electrical connections, supply requirements, and thermal limits.
The ULN3755B uses a different 16-pin DIP package and is not a direct physical replacement.
Verify the W-package pinout and mounting arrangement before installation.

Q&A:
Q: Is this a single or dual amplifier?
A: It contains two power operational amplifiers.

Q: Can it continuously deliver 3.5 A?
A: No. ±3.5 A is the peak absolute maximum rating for 50 ms. Continuous-current absolute maximum ratings are ±2.0 A at ±15 V supplies and ±2.5 A at ±6 V supplies; actual operation also depends on heat dissipation and operating conditions.

Q: Is the metal mounting tab electrically isolated?
A: No. The manufacturer identifies the heat sink connection as the negative supply, or ground in a single-ended application.

Q: Is additional heat sinking required?
A: Heat sinking must be selected for the circuit’s power dissipation and temperature. The tab alone does not establish an allowable continuous output power.

Troubleshooting:
The manufacturer requires an output R-C compensation network; component values depend on the load.
Keep input and output grounds separate and provide high-frequency supply bypassing with ceramic or film capacitors.
Keep input, output, and supply leads short.
If current sensing is unused, return the current-sense connections to the negative supply or applicable ground.
If boost operation is unused, connect the boost inputs to the positive supply.
Check the W-package connection diagram before applying power.

DISCLAIMER
Please review all photos and specifications before purchasing, and make sure this part is right for your application. Item is sold as shown in the photos.

LEGAL DISCLAIMER
American Industrial Parts Group is not an authorized distributor, reseller, or representative of Sprague. All product names, trademarks, brands, and logos are the property of their respective owners and are used for identification purposes only. As an independent reseller, the original manufacturer warranty does not apply.

Sprague electronics, Sprague components, ULN3755W, ULN 3755W, ULN-3755W, dual power operational amplifier, dual power op amp, 12-pin power-tab SIP, linear servo amplifier, voice coil motor driver, current sensing amplifier, unity-gain stable amplifier, audio power amplifier, thermal shutdown protection.

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Sprague ULN3755W dual power operational amplifier 12-pin power-tab SIP - image 1 from American Industrial Parts Group
Sprague ULN3755W Dual Power Op Amp 3.5A Peak 12-Pin Power-Tab SIPSPR-ULN3755W-N
Sprague ULN3755W Dual Power Op Amp 3.5A Peak 12-Pin Power-Tab SIPSPR-ULN3755W-N
$19.99/ea
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$19.99/ea $0.00