UCD9248PFCR ,Digital PWM System Controller 80-TQFP -40 to 125ELECTRICAL CHARACTERISTICS (continued)PARAMETER TEST CONDITIONS MIN TYP MAX UNITERROR AMPLIFIER INP ..
UCLAMP0502P.TCT , μClampTM 2-Line ESD protection
UCLAMP0504A , μClampTM 4-Line ESD protection Array
UCLAMP0504A.TCT , μClampTM 4-Line ESD protection Array
UCLAMP0506P.TCT , μClampTM 6-Line ESD protection Array
UCLAMP1201H , μClampTM 1-Line ESD Protection
UPC1176C ,Bipolar Analog Integrated CircuitPACKAGE DIMENSIONS (in millimeters)
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
Supply Voltage VCC 15 ..
UPC1197C ,FM Multiplex Stereo DemodulatorN E C ELECTRONICS INC 72
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UPC1212C ,Audio Power AmplifierN E c ELECTRONICS INC 051-: I) 'mmsas nuaama H r
6427525 N E c ELECTRONICS INC 05E 22678 D
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UPC1225H ,BIPOLAR ANALOG INTEGRATED CIRCUITN E C ELECTRONICS INC 05E I) I EH27585 0022722. Cl r
56427525 N E C ELECTRONICS INC 05E 22726 D -- ..
UPC1227V ,FM Multiplex Stereo DemodulatorFEATURES
0 No coil necessary, all tuning performed with a single potentiometer.
0 Automatic s ..
UPC1228HA ,LOW NOISE DUAL PREAMPLIFIERFEATURES
0 High open loop gain ' AVO = 100 dB TYP
0 Low noise Vnin = 1.1 11V TYP.
THD=0.05 % T ..
UCD9248PFCR
Digital PWM System Controller
UCD9248
www.ti.com SLVSA33A –JANUARY 2010–REVISED AUGUST 2012
Digital PWM System Controller
1FEATURES APPLICATIONS Fully Configurable Multi-Output and Multi- • Industrial/ATE
Phase Non-Isolated DC/DC PWM Controller • Networking Equipment Controls Upto4 Voltage Rails and Upto8 • Telecommunications Equipment
Phases • Servers Supports Switching Frequencies Upto 2MHz • Storage Systemswith 250 ps Duty-Cycle Resolution • FPGA, DSP and Memory Power• Up To 1mV Closed Loop Resolution Hardware-Accelerated, 3-Pole/3-Zero DESCRIPTION
Compensator with Non-Linear Gain for The UCD9248 is a multi-rail, multi-phase
Improved Transient Performance synchronous buck digital PWM controller designedfor
non-isolated DC/DC power applications. This device
• Supports Multiple Soft-Start and Soft-Stopintegrates dedicated circuitry for DC/DC loop
Configurations Including Prebias Start-upmanagement with flash memory anda serial interface
• Supports Voltage Tracking, Margining and to support configurability, monitoring and
Sequencing management.
• Supports Current and Temperature Balancing The UCD9248 was designed to providea wide
for Multi-Phase Power Stages varietyof desirable features for non-isolated DC/DC
• Supports Phase Adding/Shedding for Multi- converter applications while minimizing the total
Phase Power Stages system component count by reducing external
circuits. The solution integrates multi-loop
• Sync In/Out Pins Align DPWM Clocks Betweenmanagement with sequencing, margining, tracking
Multiple UCD92xx Devices and intelligent phase management to optimize for
• 12-Bit Digital Monitoringof Power Supply total system efficiency. Additionally, loop
Parameters Including: compensation and calibration are supported without
Input/Output Current and Voltage the needto add external components.
Temperatureat Each Power Stage To facilitate configuring the device, the Texas
Multiple Levelsof Over-current Fault Instruments Fusion Digital Power™ Designer is
provided. This PC based Graphical User Interface
Protection:offers an intuitive interfaceto the device. This tool
– External Current Fault Inputs allows the design engineerto configure the system
Monitor Current operating parameters for the application, store the configuration to on-chip non-volatile memory and
observe both frequency domain and time domain
Monitoredsimulationsfor eachof the power stage outputs.
Fault Protection multiple complementary power
stage solutions– from discrete driversin the UCD7k familyto fully tested modulesin the PTD family. These solutions been to
• Device Operates Supply with an complement the UCD9k family of
Allows controllers.
Voltage Range Design Monitor
