INA139QPWRQ1 vs INA139QPWRG4Q1
| Part Number |
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| Category | PMIC - Current Regulation/Management | PMIC - Current Regulation/Management |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC CURRENT MONITOR 0.5% 8TSSOP | IC CURRENT SHUNT MONITOR 8TSSOP |
| Package | Tape & Reel (TR) | Cut Tape (CT) |
| Series | Automotive, AEC-Q100 | Automotive, AEC-Q100 |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-TSSOP (0.173\", 4.40mm Width) | 8-TSSOP (0.173\", 4.40mm Width) |
| Supplier Device Package | 8-TSSOP | 8-TSSOP |
| Function | Current Monitor | Current Monitor |
| Accuracy | ±0.5% | ±0.5% |
| Current - Output | - | - |
| Voltage - Input | 2.7V ~ 40V | 2.7V ~ 40V |
| Sensing Method | High-Side | High-Side |
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1. What is a PMIC current regulation/management IC? What is its main function?
A current regulation/management IC is a power management integrated circuit (PMIC) used to control and regulate the current in a circuit. It is mainly used to stabilize current output, prevent overcurrent, protect circuits, and ensure efficient and safe operation of the device.
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2. What is the difference between a current regulation IC and a voltage regulation IC?
The current regulation IC is responsible for controlling the current to ensure that the load obtains the appropriate amount of current, while the voltage regulation IC is responsible for controlling the voltage output to maintain a stable voltage supply. Both have their own responsibilities in power management.
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3. What is over-current protection (OCP) in current management ICs?
Over-current protection (OCP) is a protection mechanism that automatically limits or cuts off the current when an excessive current is detected to prevent circuit damage or thermal runaway.
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4. What is the role of current management ICs in LED drivers?
In LED drivers, current management ICs control the current of LEDs to make the brightness consistent, reduce power consumption, avoid LED damage caused by excessive current, and extend the life of LEDs.
