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Name: PCA9570GMH
Brand: NXP USA Inc.
SKU: PCA9570GMH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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NXP USA Inc. PCA9570GMH

Part No.:: PCA9570GMH

Manufacturer:: NXP USA Inc.

Package:: 8-XFQFN Exposed Pad

Datasheet:: PCA9570GMH.pdf

Description:: IC GPIO EXPANDER 8XQFN

In Stock:: 2780

Quantity:: Add To Cart

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PCA9570GMH Specifications

Package/Case:
8-XFQFN Exposed Pad
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
NumberofI/O:
4
Interface:
I²C, SMBus
InterruptOutput:
No
Features:
POR
OutputType:
Push-Pull
Current-OutputSource/Sink:
4mA
ClockFrequency:
100 kHz
Voltage-Supply:
1.1V ~ 3.6V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

PCA9570GMH this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCA9570GMH price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for PCA9570GMH to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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PCA9570GMH information

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PCA9570GMH Typical application Circuitry

PCA9570GMH

The PCA9570GMH is a versatile IC (Integrated Circuit) that serves as an 8-bit I2C-bus controlled LED driver. It is primarily used for controlling and driving LEDs (Light Emitting Diodes) in various applications. This chip has several parameters and features that make it suitable for LED control, including its I2C interface for easy control and configurability.

Key Features and Parameters of PCA9570GMH:

1. I2C Interface: The PCA9570GMH communicates through the I2C (Inter-Integrated Circuit) interface, making it easy to control and configure. It has a 7-bit device address.

2. 8 LED Outputs: This chip provides 8 open-drain outputs, each capable of sinking up to 25mA of current. These outputs are suitable for driving LEDs or other similar loads.

3. Individual PWM Control: The PCA9570GMH allows individual control of each LED output using PWM (Pulse Width Modulation). This feature enables brightness control for each connected LED.

4. Low Standby Current: It has a low standby current consumption, making it energy-efficient and suitable for battery-powered applications.

5. Software Enable/Disable: The IC allows individual LED outputs to be enabled or disabled through software control, providing flexibility in LED control.

Application Scenario: LED Dimming Control

In this application scenario, we will design a circuit utilizing the PCA9570GMH to control the brightness of three LEDs using PWM. The LEDs will be connected to PCA9570GMH, and the brightness will be controlled using an external microcontroller via the I2C interface.

Circuit Connection (Detailed Instructions):

1. PCA9570GMH Pinout:

- VDD: Connect to the supply voltage (typically 2.3V to 5.5V).

- GND: Connect to the ground (0V).

- SDA: Connect to the I2C Serial Data line of the microcontroller.

- SCL: Connect to the I2C Serial Clock line of the microcontroller.

2. LED Connections:

- Connect the anodes (longer lead) of three LEDs to separate current-limiting resistors (e.g., 220-330 ohms).

- Connect the other end of each resistor to one of the PCA9570GMH LED output pins (e.g., LED0, LED1, LED2).

- Connect the cathodes (shorter lead) of the LEDs directly to ground (GND).

3. Microcontroller Configuration:

- Configure the microcontroller to communicate with the PCA9570GMH using I2C protocol.

- Send appropriate I2C commands to set the PCA9570GMH to PWM mode and adjust the duty cycle to control the brightness of each LED individually.

4. PCA9570GMH Configuration:

- Program the PCA9570GMH via I2C to set the LED outputs in PWM mode.

- Adjust the PWM duty cycle for each LED output to control its brightness level.

Considerations for Circuit Design:

1. LED Forward Voltage: Ensure that the LED forward voltage matches the supply voltage or the voltage across the current-limiting resistor to avoid damaging the LEDs.

2. Current Limiting Resistors: Calculate and select appropriate current-limiting resistors to limit the LED current within the specified maximum rating.

3. I2C Address: Configure the PCA9570GMH with a unique I2C address if multiple I2C devices are used on the same bus.

4. Microcontroller Compatibility: Ensure that the microcontroller you are using supports the I2C protocol and can communicate with the PCA9570GMH.

5. PWM Frequency: Consider the desired PWM frequency for LED dimming and configure the PCA9570GMH accordingly.

In summary, the PCA9570GMH is a versatile LED driver IC with PWM control, suitable for various LED dimming applications. When designing a circuit with this IC, attention to LED specifications, resistor values, I2C communication, and PWM frequency is essential to achieve the desired LED brightness control.

PCA9570GMH FAQ

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3. Are the PCA9570GMH price and inventory displayed accurate?

The price and inventory of PCA9570GMH fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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6. What is the process for return or replacement of PCA9570GMH?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the PCA9570GMH we delivered, we will accept the replacement or return of the PCA9570GMH only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of PCA9570GMH.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations