EG Micro EG1501

The EG1501 integrates a high-precision 2.5V voltage reference, a configurable 42KHz~500KHz wide-range oscillator, configurable multi-channel error amplifiers, a Buck/Boost switching power supply control module, an 8-channel 10-bit ADC, an I²C bus controller, a digital control module, LED constant-current drivers, and power MOSFET gate drivers. The EG1501 is a programmable switching power supply IC combining analog and digital functions. It features low power consumption and high flexibility. With an external low-cost 8-pin MCU (no ADC capability required), it enables advanced power management systems, making it ideal for mobile devices and battery management applications.

• Programmable switching power supply IC combining analog and digital circuits
• Built-in encrypted ID code to protect MCU firmware developed by customers
• Integrated Buck step-down module, Boost step-up module, and power PMOS/NMOS drivers with ±100mA drive current
• Analog circuitry implementing voltage loop, current loop, and cycle-by-cycle current limiting for switching power supply
• After digital circuitry configures analog loop reference values, voltage regulation, constant current, current limiting, and short-circuit protection are performed automatically
• Configurable synchronous freewheeling function
• Configurable MOS gate dead-time generator, adjustable dead-time range: 30nS~350nS
• 2.5V reference voltage source, ±1% accuracy
• Configurable PWM clock oscillator, settable range: 42KHz~500KHz
• 2 configurable cycle-by-cycle current limiting comparators for peak current protection of power PMOS and NMOS, settable range: 50mV~250mV
• 1 configurable voltage loop op-amp reference, settable range: 4.2V~5.5V
• 1 configurable constant current loop op-amp reference, settable range: 1mV~122mV
• 1 configurable current loop amplifier with slope compensation circuit
• Configurable short-circuit protection controller with adjustable short-circuit detection delay time and release mode, delay time settable range: 3uS~213uS
• External MCU configures internal registers via I²C bus
• 8-channel input, 10-bit ADC with 1 selectable configurable-gain input pre-amplifier
• Built-in chip temperature sensor supporting internal temperature readout by external MCU
• 4 configurable LED constant current drivers, no external current-limiting resistors required, constant current settable range: 0.5mA~6mA
• 1 high-power LED driver with single external current-limiting resistor, maximum current 100mA
• Wide operating voltage range: +2.5V~+5.5V
• Package: SOP16

• Mobile power banks
• Electric vehicle smart and non-smart chargers
• Lithium battery charger Buck step-down power supplies
• Mobile device power systems
• Boost step-up power supplies
• AC/DC switching power supplies and programmable digital power supplies