UCD3138A datasheet(3/83 Pages) TI

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Front End 2

Analog

Comparators

Power and

1.8 V Voltage

Regulator

AD07

AD06

AD04

V33DIO

/RESET

SCI_RX0

SCI_TX0

PMBUS_CLK

PMBUS_DATA

AGND

V33D

VREG

FAULT3

FAULT2

TCAP

TDI(DTC0)

TMS

TDO(DTC1)

TCK

EXT_INT

FAULT1

FAULT0

PWM1

PWM0

SCI_RX1

SCI_TX1

PMBUS_CTRL

PMBUS_ALERT

SYNC

DGND

DPWM3B

DPWM3A

DPWM2B

DPWM2A

DPWM1B

DPWM1A

DPWM0B

DPWM0A

EAP0

EAN0

EAP1

EAN1

V33A

AD00

AD01

AD02

AD13

PID Based

Filter 0

DPWM0

DPWM1

DPWM2

DPWM3

PID Based

Filter 1

PID Based

Filter 2

ADC_EXT

ADC12

ADC12 Control

Sequencing, Averaging,

Digital Compare, Dual

Sample and hold

AD[13:0]

Current Share

Analog, Average, Master/Slave

AD03

AD02

AD13

AGND

PMBus

Timers

4 ± 16 bit (PWM)

1 ± 24 bit

UART0

UART1

GPIO

Control

JTAG

Loop MUX

ARM7TDMI-S

32 bit, 31.25 MHz

Memory

PFLASH 64 kB

DFLASH 2 kB

RAM 4 kB

ROM 4 kB

Power On Reset

Brown Out Detection

Oscillator

Internal Temperature

Sensor

Advanced Power Control

Mode Switching, Burst Mode, IDE,

Synchronous Rectification soft on & off

Front End 1

Constant Power Constant

Current

Input Voltage Feed Forward

Front End Averaging

Digital Comparators

Fault MUX &

Control

Cycle by Cycle

Current Limit

Digital

Comparators

DAC0

EADC

AFE

Value

Dither

CPCC

Filter x

Ramp

SAR/Prebias

Abs()

Avg()

AFE

3-AFE

Peak Current Mode

Control Comparator

EAP2

EAN2

Front End 0

DTC

UCD3138A

www.ti.com

SLUSC66B – MARCH 2015 – REVISED MAY 2015

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE

VQFN (64)

9.00 mm × 9.00 mm

UCD3138A

WQFN (40)(2)

6.00 mm × 6.00 mm

(1)

For more information, see Section 9, Mechanical Packaging and Orderable Information.

(2)

40-pin 6 x 6 x 0.75 mm ultra-thin QFN with corner anchors optimized for IPC9592A Temperature Cycle Testing.

1.4

Functional Block Diagram

Figure 1-1 shows a functional block diagram of the device.

Figure 1-1. Functional Block Diagram

Device Overview

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