Datasheet

UCD3138
www.ti.com SLUSAP2F –MARCH 2012–REVISED NOVEMBER 2013
Contents
1 Introduction ........................................................................................................................ 6
1.1 Features ...................................................................................................................... 6
1.2 Applications .................................................................................................................. 7
2 Overview ............................................................................................................................ 7
2.1 Description ................................................................................................................... 7
2.2 Ordering Information ........................................................................................................ 8
2.3 Product Selection Matrix ................................................................................................... 8
2.4 Functional Block Diagram .................................................................................................. 9
2.5 UCD3138RGC 64 QFN – Pin Assignments ........................................................................... 10
2.6 Pin Functions (UCD3138RGC 64 QFN) ................................................................................ 10
2.7 UCD3138RHA 40 QFN – Pin Assignments ............................................................................ 12
2.8 UCD3138RMH 40 QFN With Corner Anchors – Pin Assignments ................................................. 13
2.9 Pin Functions (UCD3138RHA and UCD3138RMH) .................................................................. 14
3 Electrical Specifications ..................................................................................................... 15
3.1 ABSOLUTE MAXIMUM RATINGS ...................................................................................... 15
3.2 THERMAL INFORMATION .............................................................................................. 15
3.3 RECOMMENDED OPERATING CONDITIONS ....................................................................... 15
3.4 ELECTRICAL CHARACTERISTICS .................................................................................... 16
3.5 PMBus/SMBus/I
2
C Timing ............................................................................................... 19
3.6 Power On Reset (POR) / Brown Out Reset (BOR) ................................................................... 20
3.7 Typical Clock Gating Power Savings ................................................................................... 21
3.8 Typical Temperature Characteristics ................................................................................... 22
4 Functional Overview .......................................................................................................... 23
4.1 ARM Processor ............................................................................................................ 23
4.2 Memory ..................................................................................................................... 23
4.2.1 CPU Memory Map and Interrupts ............................................................................ 23
4.2.1.1 Memory Map (After Reset Operation) ........................................................... 23
4.2.1.2 Memory Map (Normal Operation) ................................................................ 24
4.2.1.3 Memory Map (System and Peripherals Blocks) ................................................ 24
4.2.2 Boot ROM ....................................................................................................... 24
4.2.3 Customer Boot Program ....................................................................................... 25
4.2.4 Flash Management ............................................................................................. 25
4.3 System Module ............................................................................................................ 25
4.3.1 Address Decoder (DEC) ....................................................................................... 25
4.3.2 Memory Management Controller (MMC) .................................................................... 25
4.3.3 System Management (SYS) ................................................................................... 25
4.3.4 Central Interrupt Module (CIM) ............................................................................... 26
4.4 Peripherals ................................................................................................................. 27
4.4.1 Digital Power Peripherals ...................................................................................... 27
4.4.1.1 Front End ............................................................................................ 27
4.4.1.2 DPWM Module ..................................................................................... 28
4.4.1.3 DPWM Events ...................................................................................... 29
4.4.1.4 High Resolution DPWM ........................................................................... 31
4.4.1.5 Over Sampling ...................................................................................... 31
4.4.1.6 DPWM Interrupt Generation ...................................................................... 31
4.4.1.7 DPWM Interrupt Scaling/Range .................................................................. 31
4.5 DPWM Modes of Operation .............................................................................................. 32
4.5.1 Normal Mode .................................................................................................... 32
4.6 Phase Shifting ............................................................................................................. 34
4.7 DPWM Multiple Output Mode ............................................................................................ 35
4.8 DPWM Resonant Mode .................................................................................................. 36
2 Contents Copyright © 2012–2013, Texas Instruments Incorporated