Texas Instruments' model UCC2803QDRQ1 is a DC-DC switching control chip that contains all control and drive components required for offline and DC-DC fixed frequency current mode switching power supplies with a minimum number of parts.
The UCC2803QDRQ1 has the same pin configuration as the UCx84x family and also provides the additional features of internal full-cycle soft-start and internal leading edge blanking of the current sense input.
The UCC2803QDRQ1 offers multiple packaging options, temperature range options, maximum duty cycle options, and threshold voltage level options. Lower reference parts such as the UCC2803-Q1 and UCC2805-Q1 are best suited for battery operating systems, while the higher reference and higher UVLO hysteresis of the UCC2802-Q1 and UCC2804-Q1 make these ideal choices for offline power supplies.
Functional features of UCC2803QDRQ1
1. Suitable for automotive applications
(1)AEC-Q100 qualified
(2) Level 1 device temperature: -40°C to 125°C TA
(3) Equipment HBM classification level 2: ±2 kV
(4) Equipment CDM classification level C5:>1000 V
(5)100µA typical startup supply current
(6)500µA typical operating supply current
(7) Operating frequency up to 1 MHz
2. Internal soft start
(1) Internal fault soft start
(2) Internal leading edge blanking of current detection signal
(3)1-A totem pole output
(4) 70 ns typical response from current sensing to gate drive output
(5)1.5% tolerance voltage reference
(6) Same pins as UC3842 and UC3842A
Application areas of UCC2803QDRQ1
UCC2803QDRQ1 is an integrated circuit widely used in power management and control. Its main application areas are as follows:
1. Power adapters and chargers: UCC2803QDRQ1 can be used to design various types of power adapters and chargers, such as laptop adapters, mobile phone chargers, etc. It achieves high efficiency and high power factor correction (PFC), and provides stable output voltage and current.
2. Electric vehicle charging piles: With the popularity of electric vehicles, the demand for charging piles is also increasing. UCC2803QDRQ1 is suitable for designing power management and control circuits for electric vehicle charging piles. It enables fast charging and intelligent charging management, and ensures battery safety and charging efficiency.
3. Solar inverter: Solar inverter converts the DC power generated by solar panels into AC power for powering homes or industrial purposes. UCC2803QDRQ1 can be used to design control circuits for solar inverters. Its high efficiency and precise feedback control can improve the conversion efficiency and stability of the inverter.
4. LED lighting control: UCC2803QDRQ1 is also used in the field of LED lighting control. It can realize dimming and brightness control of LED lights, provide stable current and voltage output, and save energy at the same time.
5. Motor control: UCC2803QDRQ1 is suitable for driving various types of motors, such as stepper motors, DC motors, etc. It provides precise control and protection functions to ensure motor safety and efficiency.
6. Industrial automation: UCC2803QDRQ1 can be used in the field of industrial automation for power management and control. It can provide stable power supply and precise control functions to meet the requirements of industrial equipment.
Parameters of UCC2803QDRQ1
Brand: Texas Instruments
Product Category: DC-DC switch control chip
Series: Automotive, AEC-Q100
Working temperature: -40℃~+125℃
Installation type: SMT
Package/casing: SOIC8_150MIL
Topology: boost, flyback, forward converter
Duty cycle: 99%
Switching frequency: 31KHz
Control characteristics: frequency control
Number of output terminals: 1
Length x Width/Dimensions: 5.00 x 3.98mm
Output configuration: Positive
Function: boost, boost/step-down
Output type: transistor driver
Synchronous rectification: none
Clock synchronization: NO
Height: 1.75mm
Number of pins: 8Pin
Supply voltage: 3.6V~12V
Pin diagram of UCC2803QDRQ1
Schematic diagram of UCC2803QDRQ1
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Package diagram of UCC2803QDRQ1
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