CAT1023ZI-25-T3 vs MIC826TYMT-T5
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| Category | PMIC - Supervisors | PMIC - Supervisors |
| Manufacturer | ON Semiconductor | Microchip Technology |
| Description | IC SUPERVISOR 1 CHANNEL 8MSOP | IC SUPERVISOR 1 CHANNEL 6TDFN |
| Package | Cut Tape (CT) | Cut Tape (CT) |
| Series | - | - |
| Type | Simple Reset/Power-On Reset | Simple Reset/Power-On Reset |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) | 6-UFDFN Exposed Pad |
| Supplier Device Package | 8-MSOP | 6-TDFN (1.6x1.6) |
| Number of Voltages Monitored | 1 | 1 |
| Output | Open Drain or Open Collector | Push-Pull, Totem Pole |
| Reset | Active High/Active Low | Active High/Active Low |
| Reset Timeout | 130ms Minimum | 140ms Minimum |
| Voltage - Threshold | 2.55V | 3.075V |
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1. What is a monitoring IC?
A monitoring IC is an integrated circuit used to ensure the correct operation of a microprocessor-based system. It mainly monitors during power-on and shutdown, and when entering or exiting shutdown or sleep mode to ensure the stability and reliability of the system. Monitoring ICs can provide a variety of functions, including power-on reset, backup battery management, memory write protection, low voltage warning, and software watchdog. Common monitoring ICs include AD8206YRZ, INA194AIDBVR, MAX9938FEUK+, etc. These chips are widely used in various electronic devices to ensure the stable operation of the system.
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2. What is the difference between PMU and PMIC?
The main difference between PMU and PMIC is that they have different application scenarios and functional positioning. PMU is a power management unit, which is mainly used in portable devices to integrate traditional discrete power management chips to improve efficiency and reduce power consumption. PMIC is a power management integrated circuit, which is mainly used for highly integrated power management solutions, encapsulating multiple output power supplies in one chip to improve efficiency and reduce size.
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3. Why do we need PMIC ?
PMIC (power management IC) plays a vital role in modern electronic devices. It can effectively manage and optimize the use of power to ensure the stable operation of the equipment and extend the battery life.
The core functions of PMIC include:
Power status monitoring: real-time monitoring of parameters such as battery power, voltage and current, judging the power status according to the set threshold, and issuing warning signals when necessary.
Energy optimization: Automatically adjust the power supply mode according to the equipment usage and requirements to meet the needs of the equipment and avoid energy waste.
Protection function: Provide overload, overheating, short circuit and other protection functions to ensure the safe operation of the equipment.
Energy saving function: Automatically reduce the power supply power or enter the energy saving mode when the equipment is in standby mode to extend the battery life.
The importance of PMIC is reflected in many aspects:
Improve equipment performance and responsiveness: By optimizing power transmission, ensure that components receive the right power at the right time, thereby improving equipment performance and responsiveness.
Extend battery life: Reduce power waste, extend battery life, and reduce environmental impact.
Miniaturize equipment: Play a role in high power density and integration to achieve miniaturization of electronic products.
Ensure equipment safety: Through a variety of protection functions, ensure that the equipment can operate safely under various working conditions.
In summary, PMIC is indispensable in modern electronic devices. It not only improves the performance and safety of the equipment, but also extends battery life and reduces environmental impact. It is a key technology for realizing efficient, safe and miniaturized electronic devices. -
4. How to test PMIC(Power Management Integrated Circuit)?
The core steps of testing PMIC include observing external features, conducting comprehensive professional testing, and measuring PSRR.
First, observing external features is the first step in testing PMIC. Rationally observe the quality standards of power management chips, including their appearance, logos, etc., to ensure that the chip meets basic quality requirements.
Second, conduct comprehensive professional testing. Select representative specification models and conduct comprehensive tests on the power management chip, including electrical characteristics test, functional test and environmental adaptability test. The electrical characteristics test covers the input voltage range test to ensure that the chip works normally under different input voltages.
Finally, measure the PSRR (power supply rejection ratio). PSRR is an important parameter of PMIC, indicating how stable the input is when the power supply voltage changes. By measuring PSRR, the resistance of PMIC to power supply voltage changes can be evaluated.
