UCD3138 datasheet(2/99 Pages) TI2

2 / 99 page

3 Description

The UCD3138 is a digital power supply controller offering superior levels of integration and performance in a

single-chip solution. The flexible nature of the UCD3138 makes it suitable for a wide variety of power conversion

applications. In addition, multiple peripherals inside the device have been specifically optimized to enhance the

performance of AC-DC and isolated DC-DC applications and reduce the solution component count in the IT and

network infrastructure space.

The UCD3138 controller is a fully programmable solution offering customers complete control of their

application, along with ample ability to differentiate their solution. At the same time, TI is committed to simplifying

our customers' development effort by offering best-in-class development tools, including application firmware,

Code Composer Studio™ software development environment, and TI’s power development GUI which lets

customers configure and monitor key system parameters.

At the core of the UCD3138 controller are the digital control loop peripherals, also known as Digital Power

Peripherals (DPPs). Each DPP implements a high-speed digital control loop consisting of a dedicated Error

Analog-to-Digital Converter (EADC), a PID-based 2-pole/2-zero digital compensator and DPWM outputs with

250-ps pulse width resolution. The device also contains a 12-bit, 267-ksps general-purpose ADC with up to 15

channels, timers, interrupt control, PMBus, and UART communications ports. The device is based on a 32-bit

ARM7TDMI-S RISC microcontroller that performs real-time monitoring, configures peripherals, and manages

communications. The ARM microcontroller executes its program out of programmable flash memory as well as

on-chip RAM and ROM.

In addition to the FDPP, specific power management peripherals have been added to enable high efficiency

across the entire operating range, high integration for increased power density, reliability, and lowest overall

system cost and high flexibility with support for the widest number of control schemes and topologies. Such

peripherals include: light load burst mode, synchronous rectification, LLC and phase-shifted full bridge mode

switching, input voltage feed forward, copper trace current sense, ideal diode emulation, constant current

constant power control, synchronous rectification soft on and off, peak current mode control, flux balancing,

secondary side input voltage sensing, high-resolution current sharing, hardware-configurable soft start with pre

bias, as well as several other features. Topology support has been optimized for voltage mode and peak current

mode controlled phase-shifted full bridge, single and dual phase PFC, bridgeless PFC, hard-switched full bridge

and half bridge, and LLC half bridge and full bridge.

Device Information

PART NUMBER(1)

PACKAGE DRAWING

PACKAGE TYPE

BODY SIZE

UCD3138

RGC

VQFN (64)

9.00 mm × 9.00 mm

RHA

VQFN (40)

6.00 mm × 6.00 mm

RMH

WQFN (40)

6.00 mm × 6.00 mm

RJA

VQFN (40) (2)

6.00 mm × 6.00 mm

(1)

For more information, see Section 14, Mechanical Packaging and Orderable Information.

(2)

Recommended for new 40-pin designs, optimized for improved performance under temperature cycling test for board level reliability

(BLR).

UCD3138

SLUSAP2J – MARCH 2012 – REVISED NOVEMBER 2021

www.ti.com

Submit Document Feedback

Product Folder Links: UCD3138

UCD3138 数据表(PDF) 2 Page - Texas Instruments

UCD3138 数据表(HTML) 2 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

数据表下载

链接网址

UCD3138 数据表(PDF) 2 Page - Texas Instruments

UCD3138 数据表(HTML) 2 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

数据表 下载

链接网址

数据表下载