Product Details
starting voltage
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turn off voltage
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starting current
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Input voltage range
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switching frequency
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output voltage accuracy
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Built in power transistor
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package
SOP16
- A programmable switching power supply chip combining analog and digital circuits
- The chip has a built-in encrypted ID code to protect the programs developed by the customer's MCU
- It has a built-in Buck step-down module, a Boost step-up module, and power PMOS and NMOS drivers with a driving current of ±100mA
- The analog circuit forms functions such as the voltage loop, current loop, and cycle-by-cycle current limiting of the switching power supply
- After the digital circuit configures the reference values of the analog loops, it automatically completes functions such as voltage regulation, constant current, current limiting, and short-circuit protection
- The synchronous freewheeling function can be configured
- The MOS tube dead-time generator can be configured, with an adjustable dead-time range of 30nS - 350nS
- It has a 2.5V reference voltage source with an accuracy of ±1%
- The PWM clock oscillator can be configured, with a configurable range of 42KHz - 500KHz
- There are two configurable cycle-by-cycle current limiting comparators, which effectively protect the peak currents of the power PMOS and NMOS, with a configurable range of 50mV - 250mV
- There is one configurable voltage-loop operational amplifier reference, with a configurable range of 4.2V - 5.5V
- There is one configurable constant-current loop operational amplifier reference, with a configurable range of 1mV - 122mV
- There is one configurable current-loop amplifier and ramp compensation circuit
- The short-circuit protection controller can be configured, including the short-circuit detection delay time and release method, with a configurable delay time range of 3uS - 213uS
- The external MCU configures the internal registers of the chip through the I²C bus
- It has an 8-channel input, 10-bit ADC analog-to-digital converter, and one optional configurable gain input pre-amplifier
- It has a built-in chip temperature sensor, supporting the external MCU to read the internal temperature of the chip
- There are four configurable LED constant-current drivers, no external current-limiting resistors are required, and the constant current can be set in the range of 0.5mA - 6mA
- There is one high-power LED driver, with an external current-limiting resistor and a maximum current of 100mA
- It has a wide operating voltage range of +2.5V - +5.5V
- Package form: SOP16.
- Mobile phone power bank
- Intelligent and non intelligent chargers for electric vehicles
- Lithium battery charger
- Buck step-down power supply
- Mobile device power system
- Boost boost power supply
- AC/DC switching power supply
- Programmable digital power supply
A programmable switching power supply chip that combines analog and digital technologies. It has built-in encrypted ID codes, a Buck step-down module, a Boost step-up module, a power MOS driver, etc. The internal registers can be configured through the I²C bus of an external MCU to achieve functions such as voltage regulation, constant current, current limiting, and short-circuit protection. It also has configurable synchronous rectification, a dead-time generator, multiple reference voltages, an ADC converter, an LED constant current driver, etc. It has a wide operating voltage range and is suitable for application scenarios such as mobile devices and battery management. The package form is SOP16.