UCD8220-Q1 Series

Automotive 4.5V to 15.5V digitally Assisted push-pull PWM controller

Catalog

Automotive 4.5V to 15.5V digitally Assisted push-pull PWM controller

Part	Output Configuration	Mounting Type	Number of Outputs	Grade	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Package / Case	Package / Case	Frequency - Switching [Max]	Qualification	Output Phases	Topology	Output Type	Supplier Device Package	Function	Synchronous Rectifier	Clock Sync	Operating Temperature [Min]	Operating Temperature [Max]
Texas Instruments UCD8220QPWPRQ1	Isolation Capable Positive	Surface Mount	2	Automotive	15.5 V	4.5 V	16-PowerTSSOP	0.173 in 4.4 mm Width	2 MHz	AEC-Q100	1	Full-Bridge Half-Bridge Push-Pull	Transistor Driver	16-HTSSOP	Step-Up/Step-Down			-40 °C	125 ¯C
Texas Instruments UCD8220PWPRG4	Isolation Capable Positive	Surface Mount	2		15.5 V	4.5 V	16-PowerTSSOP	0.173 in 4.4 mm Width	2 MHz		1	Full-Bridge Half-Bridge Push-Pull	Transistor Driver	16-HTSSOP	Step-Up/Step-Down			-40 °C	105 °C

Catalog

Automotive 4.5V to 15.5V digitally Assisted push-pull PWM controller

Key Features

• AEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to 125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4BFor Digitally Managed Power Supplies Using µCsor the TMS320™ DSP FamilyVoltage or Peak Current Mode Control with Cycle-by-Cycle Current LimitingClock Input from Digital Controller to Set OperatingFrequency and Max Duty CycleAnalog PWM Comparator2-MHz Switching Frequency110-V Input Startup Circuit and Thermal Shutdown(UCD8620)Internal Programmable Slope Compensation3.3-V, 10-mA Linear RegulatorDSP/µC Compatible InputsDual ±4-A TrueDrive™ Integrated Circuit HighCurrent Drivers10-ns Typical Rise and Fall Times with 2.2-nF25-ns Input-to-Output Propagation Delay25-ns Current Sense-to-Output Propagation DelayProgrammable Current-Limit ThresholdDigital Output Current-Limit Flag4.5-V to 15.5-V Supply Voltage RangeAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to 125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4BFor Digitally Managed Power Supplies Using µCsor the TMS320™ DSP FamilyVoltage or Peak Current Mode Control with Cycle-by-Cycle Current LimitingClock Input from Digital Controller to Set OperatingFrequency and Max Duty CycleAnalog PWM Comparator2-MHz Switching Frequency110-V Input Startup Circuit and Thermal Shutdown(UCD8620)Internal Programmable Slope Compensation3.3-V, 10-mA Linear RegulatorDSP/µC Compatible InputsDual ±4-A TrueDrive™ Integrated Circuit HighCurrent Drivers10-ns Typical Rise and Fall Times with 2.2-nF25-ns Input-to-Output Propagation Delay25-ns Current Sense-to-Output Propagation DelayProgrammable Current-Limit ThresholdDigital Output Current-Limit Flag4.5-V to 15.5-V Supply Voltage Range

Description

The UCD8220-Q1 analog pulse-width modulator (PWM) device is used in digitally managed power supplies using a microcontroller or the TMS320 DSP family. The UCD8220-Q1 device is a double-ended PWM controller configured with push-pull drive logic. Systems using the UCD8220-Q1 device close the PWM feedback loop with traditional analog methods, but the UCD8220-Q1 controller includes circuitry to interpret a time-domain digital pulse train. The pulse train contains the operating frequency and maximum duty cycle limit which are used to control the power supply operation. The device circuitry eases implementation of a converter with high level control features without the added complexity or possible PWM resolution limitations of closing the control loop in the discrete time domain. The UCD8220-Q1 device can be configured for either peak current mode or voltage mode control. The device provides a programmable current-limit function and a digital output current-limit flag which can be monitored by the host controller to set the current limit operation. For fast switching speeds, the output stage uses the TrueDrive output circuit architecture, which delivers rated current of ±4-A into the gate of a MOSFET. Finally the device also includes a 3.3-V, 10-mA linear regulator to provide power to the digital controller or act as a reference in the system. The UCD8220-Q1 controller is compatible with the standard 3.3-V I/O ports of UCD9K digital power controllers, DSPs, microcontrollers, or ASICs and is offered in the PowerPAD™ integrated circuit package HTSSOP. The UCD8220-Q1 analog pulse-width modulator (PWM) device is used in digitally managed power supplies using a microcontroller or the TMS320 DSP family. The UCD8220-Q1 device is a double-ended PWM controller configured with push-pull drive logic. Systems using the UCD8220-Q1 device close the PWM feedback loop with traditional analog methods, but the UCD8220-Q1 controller includes circuitry to interpret a time-domain digital pulse train. The pulse train contains the operating frequency and maximum duty cycle limit which are used to control the power supply operation. The device circuitry eases implementation of a converter with high level control features without the added complexity or possible PWM resolution limitations of closing the control loop in the discrete time domain. The UCD8220-Q1 device can be configured for either peak current mode or voltage mode control. The device provides a programmable current-limit function and a digital output current-limit flag which can be monitored by the host controller to set the current limit operation. For fast switching speeds, the output stage uses the TrueDrive output circuit architecture, which delivers rated current of ±4-A into the gate of a MOSFET. Finally the device also includes a 3.3-V, 10-mA linear regulator to provide power to the digital controller or act as a reference in the system. The UCD8220-Q1 controller is compatible with the standard 3.3-V I/O ports of UCD9K digital power controllers, DSPs, microcontrollers, or ASICs and is offered in the PowerPAD™ integrated circuit package HTSSOP.