Texas Instruments UCD3138PSFBEVM-027 User Manual page 25

www.ti.com
12.2 UCD3138 Pin Definitions
The UCD3138 pins are defined according to
used in the EVM to control a phase-shifted full-bridge converter. See
these pin signals are used.
Front End
Front End
AGND
ISHARE
TEMP
VIN_Scale
0.1x Vo
ISEC
V33D
V33DIO Power
VREG
1.8-V
Voltage
Regulator
AGND
Figure 23. UCD3138 Pin Definition in Phase-Shifted Full-Bridge Control
SLUUAK4 – August 2013
Submit Documentation Feedback
Front End 0
EADC
Soft Start Control
DAC0 Filter 1 or 2 (Loop Nesting)
CPCC Module
1
2
Advanced Power Control
Mode Switching, Burst Mode, IDE,
Synchronous Rectification soft on & off
ADC12
Analog, Average, Master/Slave
Analog
Comparators
A
AD03
B
C
AD04
D
E
and
AD06
F
AD07
G
Copyright © 2013, Texas Instruments Incorporated
Description of the Digital Phase-Shifted Full-Bridge Converter
Figure 23. The definitions shown in
Figure 21
Constant Power Constant
Input Voltage Feed Forward
ADC12 Control
Sequencing, Averaging,
Digital Compare, Dual
Sample and hold
Internal Temperature
Sensor
Current Share
ARM7TDMI-S
32 bit, 31.25 MHz
PFLASH 32 kB
DFLASH 2 kB
Fault MUX &
Control
Power On Reset
Cycle by Cycle
Current Limit
Brown Out Detection
Digital
Comparators
Figure 23 are for the pins
for how the signals on
PID
DPWM0
Filter 0
PID
DPWM1
Filter 1
PID
DPWM2
Filter 2
DPWM3
Current
Front End Averaging
Digital Comparators
PMBus
Timers
4 ± 16 bit (PWM)
1 ± 24 bit
Oscillator
UART0
UART1
Memory
RAM 4 kB
ROM 4 kB
GPIO
Control
JTAG
Using the UCD3138PSFBEVM-027
25