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BD9251FV-E2 The BD9251FV-E2 is a preamplifier IC from ROHM Semiconductor designed for pyroelectric infrared sensor applications. It operates from 2.97V to 6.0V with a typical supply current of 300 µA.
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BD9251FV-E2

Available from 2 distributors
Mfr Name: ROHM Semiconductor
ROHM Semiconductor
The BD9251FV-E2 is a preamplifier IC from ROHM Semiconductor designed for pyroelectric infrared sensor applications. It operates from 2.97V to 6.0V with a typical supply current of 300 µA.
✓ Total Stock: 7,056 pcs

BD9251FV-E2 Available from 2 distributors

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Optech Co.,Limited ✓
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5,933 pcs
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5933 pcs On Request 1 On Request On Request 1520+ On Request On Request
Smaxon Electronics ✓
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1,123 pcs
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1123 pcs On Request 1 On Request On Request 16+ On Request On Request
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BD9251FV-E2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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BD9251FV-E2 Description

Short technical summary and product information.

The BD9251FV-E2 is a single-chip preamplifier IC from ROHM Semiconductor designed for human body detection using pyroelectric infrared sensors. It integrates an amplifier for sensor output, a comparator for sensor output, a built-in voltage regulator, and a moving detector, simplifying design and reducing component count.

 

Key electrical specifications include a supply voltage range of 2.97V to 6.0V, a typical supply current of 300 µA (400 µA maximum), and a maximum power dissipation of 440 mW on a standard glass epoxy board. The device features two amplifiers (AMP1 and AMP2) with a typical gain of 46 dB and a unity gain bandwidth of 1 MHz. The DRAIN output voltage is typically 2.3V.

 

The BD9251FV-E2 is housed in a 14-LSSOP surface-mount package (4.40mm width) with a supplier device package designation of 14-SSOP-B. It is designed for an operating temperature range of -30°C to 75°C, making it suitable for a variety of indoor and outdoor applications such as lighting controls, security systems, and smart home devices.

BD9251FV-E2 Quick Information

Product Type: Preamplifier IC
Canonical Name: BD9251FV-E2 IC for Human Body Detector Amplifier for Pyroelectric Infrared Sensor
Subcategory: Sensor and Detector Interfaces

BD9251FV-E2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BD9251FV-E2 Features

  • Integrated amplifier and comparator for PIR sensors.
  • Built-in voltage regulator and moving detector.
  • Operates from 2.97V to 6.0V supply.
  • Typical supply current of only 300 µA.
  • Housed in a compact 14-LSSOP surface-mount package.

BD9251FV-E2 Applications

  • Used in lighting and sensor light controls.
  • Ideal for security system applications.
  • Suitable for WEB camera and TV designs.
  • Used in PC display and air conditioner systems.
  • Applied in ventilation fan control circuits.

BD9251FV-E2 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the BD9251FV-E2?

The supply voltage range is 2.97V to 6.0V.

What is the typical supply current of the BD9251FV-E2?

The typical supply current is 300 µA, with a maximum of 400 µA under no load conditions.

What is the operating temperature range of the BD9251FV-E2?

The operating temperature range is -30°C to 75°C.

What package is the BD9251FV-E2 available in?

The BD9251FV-E2 is available in a 14-LSSOP surface-mount package (4.40mm width), also designated as 14-SSOP-B.

What is the typical gain of the amplifiers in the BD9251FV-E2?

The typical gain for AMP1 and AMP2 is 46 dB.

What is the maximum power dissipation of the BD9251FV-E2?

The maximum power dissipation is 440 mW at 25°C on a glass epoxy board, derating by 3.5 mW/°C above 25°C.

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