The following table describes the parameters of the ob2269 chip
ob2269 chip is a power management IC chip using 8-pin package process, it has low standby power consumption, lower starting current, lower working current, built-in front blanking, built-in OCP compensation, MOSFET soft driver, etc., it is widely used in laptop power adapters, computer\/TV\/set-top box power supplies, battery chargers and other occasions.
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OB2269 adopts DIP-8 and SOP-8 packaging processes.
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OB2269 can be directly replaced by OB2268, DAP02, SG6841, SG5841.
Parameters are as follows
OB2269 is a low-power single-chip chip, with single-chip chip functions and compatible ARM Cortex-M0 core, clock frequency up to 48MHz, 1KB 8KB internal memory, support 256KB external Flash memory, provide 32KB SRAM, built-in 12-bit ADCC. With a variety of built-in chip peripheral support, such as I2C, UART, SPI and so on.
model
CR6842
power
120 w
substitute
ob2269
package
SOUP-8
brand
venichenwei
Company logo
Shenzhen Lili Microelectronics Technology
The output stage of the CR6842 is a totten gate drive. The cross-conduction method effectively reduces the heat loss, improves the efficiency and enhances the stability. A clamp protection voltage of 18V is set inside the chip for the gate end of the MOSFET to prevent the drive problem when the VDD is abnormal. At the same time, the chip is also set up inside the soft driver to improve EMI characteristics.