PIC602

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PIC602 is an integrated circuit designed to provide automated power management solutions to devices under battery power supply. It helps to extend the battery life by lowering the power standby current, cutting off the power in the idle state, and providing maximum performance and high efficiency at a minimum power load level. The PIC602 is a compact and integrated high performance power management device with a rich portfolio for a wide range of battery powered applications.

Features

• 2.2V to5.5V Supply Voltage Range
• Rated Operating Current of 1mA to 40mA
• Negative Gate Voltage Output for Fast Switchable Application
• 3mV Transient Voltage Discharge From VCC without Any External Components
• Power Supply Current of less than 2uA
• Configurable Operating Voltage and Debounce Time
• AC and DC Input
• White LED Driver Circuit

Application Fields

• White LED illumination systems
• Battery-powered portable devices such as wearable electronics
• Bluetooth devices
• Digital cameras
• Secure authentication systems for smart homes and buildings

Functions

• Load Shut-Down: Enables the load to switch off or off in the absence of a battery or other power source.
• Voltage Sense: Detects the voltage of the battery or the power source.
• Debounce: Reduces the current pulses of hostile loading effects such as the connection of a car charger.
• Output Voltage Internal Bandgap Reference: For low voltage battery condition, the internal reference voltage range can be selected as 2V, 3V or 4V.
• Output Voltage: When the battery or power source voltage is greater than the specified voltage level, the output voltage is maintained until the battery or power source voltage is below the specified voltage level.

Working Principle

The core of PIC602 is a power switch, which can provide up to 40mA load current. It is comprised of an integrated circuit (IC) with several external components including: a resistor, a capacitor, and two pins. The two pins are connected to the terminal of the input voltage, while the resistor and capacitor are connected in series and provide the desired voltage level. The switch is triggered by the voltage signal, turning on or off the power supply. When turned on, the current flows out of the IC and into the load device, while when turned off, no current is present.

The PIC602’s main job is to sense the input voltage and compare it to the reference voltage. When the input voltage drops below the reference voltage, the device turns on and provides the power to the load. At the same time, the device can also detect if the load current is too high. If so, the device will shut off the power, cutting off the connection until the current drops to a safe level.

The PIC602 also includes a few other features. For example, the device can be configured to turn on for a certain duration and then switch off after expiration of this duration. It can also be configured to output a negative voltage gate which can be used for the control of peripherals. Finally, the device also has a white LED driver circuit.

In conclusion, the PIC602 is a compact and integrated high performance power management device which provides automated power management solutions. It can be used in a wide range of battery powered applications and its features help in extending the battery life. The device is also configurable and can be set to switch off when the battery or power source voltage is Low and switch on with a voltage signal.

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