MT6370P中文资料联发科技数据手册PDF规格书

Features

· Battery Charger

– High-Accuracy Voltage/Current Regulation

– Average Input Current Regulation (AICR) : 0.1A to 3.25A in 50mA steps

– Charge Current Regulation Accuracy : ±7

– Charge Voltage Regulation Accuracy : ±0.5 (0 to 70°C)

– Battery Temperature Sensing

– Synchronous 1.5Mz Frequency PWM Controller with Up to 95 Duty Cycle

– Thermal Regulation and Protection

– Over-Temperature Protection

– Input Over-Voltage Protection

– IRQ Output for Communication via I2C

– Automatic Charging

– BATFET Control to Support Ship Mode, Wake Up, and Full System Reset

– Resistance Compensation from Charger Output to Cell Terminal

– USB OTG Output Voltage Range : 4.425V to 5.825V

– D+/D- Detection for BC1.2

– Integrated ADCs for System Monitoring (Charger Current, Voltage, and Temperature)

– JEITA Thermal Comparator Accuracy ±1 VTS

– Low Battery Protection from 2.3V to 3.8V for Boost Operation

– Initial VOREG Set for Relieve Battery Protection

– External OVP MOSFET Driving for Higher Surge Application, Up to AMR 28V

· USB_PD

– PD-Compatible Dual-Role

– Attach/Detach Detection as Host, Device or Dual-Role Port

– Current Capability Definition and Detection

– Cable Recognition

– Alternate Mode Supported

– Supports VCONN with Programmable Over-Current Protection (OCP)

– Dead Battery Support

– Ultra-Low Power Mode for Attach Detection (<10mA)

– BIST Mode Supported

– USB PD3.0

· Backlight WLED Driver

– Drives up to 4 Strings of 8 series WLEDs

– External PWM Pin and I2C-Controlled with Programmable 11 bits of Linear and Exponential Brightness

– I2C-Programmable Over-Voltage Protection (OVP) Threshold

– Supports Torch Mode and Strobe Mode for Front Cameras

– Auto Switch Frequency Mode (500kHz, 1MHz)

– Four Over-Voltage Protection Thresholds (17V, 21V, 25V, and 29V)

– Four Over-Current Protection Thresholds (900mA, 1200mA, 1500mA, and 1800mA)

– Front-Facing Flash with 300 Brightness for Selfshot

· Flash LED Driver

– Synchronous Boost Dual Flash LED Driver with Dual Independently-Programmable LED Current Sources

– Torch Mode Current : from 25mA to 400mA in 12.5mA Steps per Channel

– I2C-Programmable Flash Safety Timer, from 64ms to 2432ms with 32ms/Step

– Flash LED1/LED2 Short-Circuit Protection, and Output Short-Circuit Protection

– TXMask Protection with dedicated FL_TXMASK Pin

– Shared Charger/OTG as Power Stage

– Independent Torch Bypass MOSFET from VSYS

– Strobe Mode Current : 50mA to 1.5A in 12.5mA Steps or 25mA to 750mA in 6.25mA Steps per Channel, and Up to

2.5A in Total

· Display Bias Driver

– I2C-Programmable Output Voltages

– Flexible Output Voltages (VDB_BST, VDB_POS, VDB_NEG) Setting

– Boost Converter Output Voltage (VDB_BST) Range : 4V to 6.2V, 50mV/Step

– Positive Voltage Output (VDB_POS) Range : 4V to 6V, 50mV/Step

– Negative Voltage Output (VDB_NEG) Range : -4V to -6V, 50mV/Step

– Selectable Output Mode (Fast Discharge or Float) when Positive/Negative Voltage Output Disabled

– External Independent Positive/Negative Enable Control

– True Load Disconnect, Over-Current Protection, and Positive/Negative Short-Circuit Protection Function

– Output Current : 80mA

– Power-Saving by Periodic Mode

· LDO

– Output Voltage Range : 1.6V to 4V, 200mV/Step

– Output Current : 400mA

– High PSRR and Low Dropout LDO

· RGB LED Driver

– 4-Channel LED Driver

– Sink Current for 3 RGB LEDs : 24mA/Channel in 4mA Steps

– PWM Dimming Frequency Range : 0.1Hz to 1kHz

– RGB_ISINK4 for CHG_VIN Power Good Indicator

– Support Register Mode, PWM Mode, and Breath Mode

Applications

· Cellular Telephones

· Personal Information Appliances

· Tablet PCs

· Portable Instruments

· Industrial HMI, desktop POS, KIOSK, digital signage