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Description
The A3952SLBTR-T is an electronic component designed for bidirectional pulse-width modulated current control of inductive loads. It has a continuous output current rating of ±2 A and can operate at voltages up to 50 V. This component features internal fixed off-time PWM current-control circuitry, which allows the regulation of the maximum load current to a desired value. The peak load current limit is determined by the user's selection of an input reference voltage and an external sensing resistor. The A3952SLBTR-T also includes thermal shutdown with hysteresis, transient suppression diodes, and crossover current protection for internal circuit protection. It does not require special power-up sequencing.
With the ENABLE input held low, the PHASE input controls load current polarity by selecting the appropriate source and sink driver pair. The MODE input determines whether the PWM current-control circuitry operates in a slow current-decay mode (only the selected sink driver switching) or in a fast current-decay mode (selected source and sink switching). The A3952SLBTR-T has a user-selectable blanking window to prevent false triggering of the PWM current control circuitry. When the ENABLE input is held high, all output drivers are disabled. Additionally, a sleep mode is provided to reduce power consumption when the component is inactive. The BRAKE input enables the braking function when a logic low is applied. This function overrides ENABLE and PHASE to turn OFF both source drivers and turn ON both sink drivers. It can be used safely to dynamically brake brush DC motors. The A3952SLBTR-T is available in four power packages, and the batwing/power tab is at ground potential and requires no isolation. It can operate in temperature ranges from -40°C to +125°C.
Specifications and Features
• ±2 A Continuous Output Current Rating
• 50 V Output Voltage Rating
• Internal PWM Current Control
• Fast and Slow Current-Decay Modes
• Sleep (Low Current Consumption) Mode
• Internal Transient Suppression Diodes
• Under-Voltage Lockout
• Internal Thermal Shutdown Circuitry
• Crossover-Current ProtectionApplication Scenarios
The A3952SLBTR-T is suitable for applications that involve bidirectional pulse-width modulated current control of inductive loads. It is commonly used in industries such as automotive, robotics, and industrial automation. Some potential application scenarios include:
- Motor control in electric vehicles
- Servo motor control in robotics
- Actuator control in automated manufacturing processes
- Control of inductive loads in power electronics systems
Comparison
Advantages- Capable of bidirectional pulse-width modulated current control
- Wide operating voltage range (up to 50 V)
- Internal circuit protection features
- Choice of four power packages
- Can operate in temperature ranges from -40°C to +125°C
Disadvantages- Not suitable for applications requiring higher output current ratings
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Similar parts: 430483 , Click to view
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Datasheet
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Popular parts of the same kind
- Datasheet: Download A3952SLBTR-T
- Chipdatas Part: CD94-A3952SLBTR-T
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
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- Last Updated: 2024/06/13 19:45 +0800
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