Allicdata Part #: | RT9711BGF-ND |
Manufacturer Part#: |
RT9711BGF |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Richtek USA Inc. |
Short Description: | IC PWR SWITCH USB 1.5A 8MSOP |
More Detail: | N/A |
DataSheet: | RT9711BGF Datasheet/PDF |
Quantity: | 1000 |
Voltage - Load: | 2.5 V ~ 5.5 V |
Supplier Device Package: | 8-MSOP |
Package / Case: | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
Operating Temperature: | -40°C ~ 125°C (TJ) |
Fault Protection: | Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO |
Features: | Status Flag |
Input Type: | Non-Inverting |
Rds On (Typ): | 90 mOhm |
Current - Output (Max): | 1.5A |
Voltage - Supply (Vcc/Vdd): | Not Required |
Series: | -- |
Interface: | On/Off |
Output Type: | N-Channel |
Output Configuration: | High Side |
Ratio - Input:Output: | 1:1 |
Number of Outputs: | 1 |
Switch Type: | USB Switch |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
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RT9711BGF Application field and Working Principle
RT9711BGF belongs to PMIC- Power Distribution Switches, Load Drivers. It is a single-channel load driver that can drive resistive load such as LED and RGB LED. It can provide constant current and over current protection.
Application field
RT9711BGF is widely used in LED and RGB LED applications, such as wearable device, automotive and automotive interior lighting, LCD backlighting, LED lighting, stage lighting, and lighting equipment. It has higher current accuracy and overcurrent protection, so it is more stable in actual operation.
Working Principle
The working principle of RT9711BGF is as follows: it uses an internal error amplifier and an external sense resistor to convert the current feedback of the driven output into a voltage signal, which is compared with the Voltage setting feedback at the reference input. A microcomputer PWM signal is used as the gate drive signal, and the high and low level of the PWM signal corresponds to the ON and OFF of the PMOS of the NT9711 to control the current of the output load.
In addition, the RT9711BGF also has built-in over-current protection, over-voltage protection, short-circuit protection and open-circuit protection functions. When the output current is large or the output voltage is too large, the protection switch will be turned on and the output current will be cut off. Furthermore, by applying an external voltage to the VCC pin, a high voltage can be slowly applied to the power tube of the load, which can effectively prevent the instantaneous inrush current of the load.
In addition, the RT9711BGF also has a stand-by pin EN and a window watchdog to unlock the remote output. The stand-by pin EN is used to control the turning on and off of the load, and the window watchdog is used to detect the external signal and unlock the remote output accordingly. At the same time, other important parameters such as LED current and LED voltage have been adjusted to the necessary accuracy, thereby ensuring no errors in actual application.
The specific data is subject to PDF, and the above content is for reference
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