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Overview
The LB8632V is a general-purpose camera motor driver IC that supports low- saturation output and low-voltage drive and thus can be used in a wide range of applications. The LB8632V is a miniature thin form-factor IC that provides circuit structures and I/O logic that reduce development times and costs and support reduced lot sizes and end product diversity, despite increasing miniaturization and functionality in application products.
Features
• 3, 6 V and a wide application range: from popularly priced models to top-of- the-line products The external transistors and the number of ICs (one or two) is determined by the number of IC required motors and actuators.
Support for motor standby, forward, reverse and braking control for four motors using only five CPU port lines.
This requires two external transistors and two ICs. The LB8632V also provides non-operating mode logic for the operating control signals (the IN input) so that ICs with other functions can be used on the same ports.
• Built-in 1 CH low-voltage drive low-saturation, forward/reverse motor drive IO peak = 3.0 A maximum (t ≤ 100 ms: single shot, between OUT1 and OUT2) IO DC = 1.0 A maximum VO sat = 0.45 V typical (at IO = 1 A)
Operating voltage range: VB = 1.2 to 7.5 V (VB = VS = VDD = battery voltage)
• Built-in low-voltage drive - 0.5 CH forward/reverse motor driver
Supports 1.5 CH bridge operation with the use of two external transistors. Also supports LED or solenoid drive with constant-current drive.
Operating voltage range: VB = 1.2 to 7.5 V (VB = VS = VDD = battery voltage)
• Built-in regulator predriver
VCC can be regulated at 1.86 V by connecting the VCC control pin (VCONT) to the reference voltage, VREF (1.36 V). Also, the VCC output voltage can be varied by inputting the CPU D/A output to VCONT. Either the IC itself or only the VCC regulator can be turned on according to the operating mode of each motor.
In addition, this function can also be used as a battery check comparator.
Operating voltage range: VB = 1.5 to 7.5 V
• Three independent power supply line systems
The LB8632V supports either single supply specifications (VB = VS = VDD) or dual supply specifications (battery/step-up supply) by providing a power supply voltage pin (VB), a motor supply pin (VS), and a CPU interface pin (VDD). Also, motor output can be stabilized by taking the motor power supply from the VCC regulator.
Support for both CMOS and n-channel open drain outputs from the CPU.
• Built-in thermal protection circuit
This circuit limits the output current if the IC overheats due to excessive loading or an output short and thus prevents the destruction of the IC.
• Provided in the miniature ultrathin SSOP-20 package (6.4 × 6.5 × 1.6 mm) -
Similar parts: 430483 , Click to view
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Datasheet
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- Last Updated: 2024/10/03 21:43 +0800
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