LP3773D
WUXI CHIP HOPE MICRO-ELECTRONICS LTD
LP3773D is a constant voltage and constant current primary feedback control chip,
Built in VCBO with 850V power transistor, suitable for chargers and
Adapter.
LP3773D adopts unique output line loss compensation technology, which can effectively
Compensation for the loss and voltage drop of the output current on the output line.
LP3773D is the latest generation of constant voltage and constant current control chip from Xinmao Microelectronics,
Optimized dynamic response and driving performance, enabling greater output power
Rate.
LP3773D has multiple protection functions, including open circuit protection and overvoltage protection
Functions such as protection, short circuit protection, over temperature protection, etc.
LP3773D is packaged in SOP7
Characteristics
Applicable to 5V/1.5A scheme
Establishing a bottom-up mechanism to improve system efficiency
Built-in high-power BJT
High precision of constant voltage and constant current
≤ 75mW standby power consumption
Unique output line loss compensation technology
Hiccup function
Open circuit and short circuit protection
Overvoltage and undervoltage protection
• Over temperature protection
Application
Mobile phones, cordless phones, PDAs, MP3 players, and other portable devices
Standby adapter and charger
LED driver power supply
Upgrading and upgrading of linear power supply and RCC switching power supply
Other auxiliary power supplies, etc
Note 1: The maximum limit value refers to the possibility of chip damage beyond the operating range. The recommended working range refers to the range within which the device functions normally, but not completely
Ensure that individual performance indicators are met. Electrical parameters define the DC and AC electrical parameters of a device within its operating range and under test conditions that ensure specific performance indicators
Norms. For parameters without given upper and lower limits, this specification does not guarantee their accuracy, but their typical values reasonably reflect device performance.
Note 2: The maximum power consumption will definitely decrease as the temperature increases, which is also determined by TJMAX, θ JA, determined by the ambient temperature TA. The maximum allowable power consumption is PDMAX=(TJMAX TA)/
θ JA or the lower value given in the limit range.
Note 3: In the human body model, a 100pF capacitor is discharged through a 1.5K Ω resistor.
