PCA9622BS,118

Voltage - Output:	40V
Base Part Number:	PCA9622
Supplier Device Package:	32-HVQFN (5x5)
Package / Case:	32-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Backlight
Dimming:	PWM
Frequency:	100kHz ~ 1MHz
Current - Output / Channel:	100mA
Series:	--
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	2.3V
Number of Outputs:	16
Internal Switch(s):	Yes
Topology:	--
Type:	Linear
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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PCA9622BS,118 Application Field and Working Principle

PCA9622BS,118 are part of the Texas Instruments line of power management integrated circuits (PMICs). These devices are designed for use in LED lighting applications and are capable of providing both general-purpose and specialized LED driver functions.

Application Field

PCA9622BS,118 are designed for applications requiring multiple LED drivers in a small space, such as LED lighting. The device is optimized for LED lighting applications using LED arrays, LED strips, and LED spotlights. It can also be used for general-purpose LED lighting and as a driver for LCD backlighting.

Working Principle

The PCA9622BS,118 is a low-cost, low-power LED driver that integrates two controllable, high-side N-channel MOSFETs and two linear current regulation circuits. Each current regulation circuit generates a constant current, which is determined by the resistor and the voltage reference. The current regulation circuits are enabled by an EN input that can be controlled by a microcontroller.The PCA9622BS,118 supports pulse-width modulation (PWM) control. The device’s PWM pin can be connected to a microcontroller or other source of PWM control signals. The PWM pin can also be configured to operate in open-drain or open-collector mode for direct connection to a microcontroller.The PCA9622BS,118 also provides a dimming control input for manual brightness control. The dimming input is a 0-5 V analog input that can be used to adjust the brightness of the connected LEDs. In addition, the device has power-on reset and thermal shutdown protection.

Conclusion

The PCA9622BS,118 is an ideal solution for LED lighting applications requiring multiple LED drivers and linear current regulation, such as LED arrays, LED strips, and LED spotlights. The device is capable of providing both general-purpose and specialized LED driver functions and supports pulse-width modulation and manual dimming control. In addition, it has power-on reset and thermal shutdown protection, making it a safe and reliable choice for LED lighting applications.

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