SLUSBZ8B June 2014 – February 2017 UCD3138128 , UCD3138A64
PRODUCTION DATA.
Changes from A Revision (June 2014) to B Revision
Changes from * Revision (June 2014) to A Revision
The UCD3138 family is a digital power supply controller from Texas Instruments offering superior levels of integration and performance in a single chip solution. The UCD3138x, in comparison to Texas Instruments UCD3138x digital power controller offers 64 kB of program Flash memory in UCD3138A64 (128 KB in UCD3138128) and additional options for communication such as SPI and a second I2C port. The availability of program Flash memory in multiple 32 kB banks enables designers to implement dual images of firmware (e.g. one main image + one back-up image) in the device and provides the option to execute from either of the banks using appropriate algorithms. It also creates the unique opportunity for the processor to load a new program and subsequently execute that program without interrupting power delivery. This feature allows the end user to add new features to the power supply in the field while eliminating any down-time required to load the new program.
The flexible nature of the UCD3138 family 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 family 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 customer’s development effort through offering best in class development tools, including application firmware, Code Composer StudioTM software development environment, and TI’s Fusion Power Development GUI which enables customers to configure and monitor key system parameters.
At the core of the controller are the Digital Power Peripherals (DPP). 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 250ps pulse width resolution. The device also contains a 12-bit, 267 ksps general purpose ADC with up to 15 channels, timers, interrupt control, PMBus, I2C, SPI 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 DPP, 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, active clamp forward converter, two switch forward converter and LLC half bridge and full bridge.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
UCD3138128 | TQFP (80) | 12.00 mm × 12.00 mm |
UCD3138A64 |
Feature | UCD3138 RHA/RMH |
UCD3138064 RMH |
UCD3138 RGC |
UCD3138064 RGC |
UCD3138064 RGZ |
UCD3138128 PFC |
UCD3138A64 PFC |
---|---|---|---|---|---|---|---|
Package Offering | 40 Pin QFN (6mm x 6mm) |
40 Pin QFN (6mm x 6mm) |
64 Pin QFN ( 9mm x 9mm) |
64 Pin QFN (9mm x 9mm) |
48 Pin QFN (7mm x 7mm) |
80 Pin QFP (14mm x 14mm) (Includes leads) |
80 Pin QFP (14mm x 14mm) (Includes leads) |
ARM7TDMI-S Core Processor | 31.25 MHz | 31.25 MHz | 31.25 MHz | 31.25 MHz | 31.25 MHz | 31.25 MHz | 31.25 MHz |
High Resolution DPWM Outputs (250ps Resolution) | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Number of High Speed Independent Feedback Loops (# Regulated Output Voltages | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
12-bit, 256kps, General Purpose ADC Channels | 7 | 7 | 14 | 14 | 9 | 15 | 15 |
Digital Comparators at ADC Outputs | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Flash Memory (Program) | 32 kB | 64 kB | 32 kB | 64 kB | 64 kB | 128 kB | 64 kB |
Number of Memory 32kB Flash Memory Banks | 1 | 2 | 1 | 2 | 2 | 4 | Only 1 bank of 64 kB Flash available |
Flash Memory (Data) | 2 kB | 2 kB | 2 kB | 2 kB | 2 kB | 2 kB | 2 kB |
RAM | 4 kB | 4 kB | 4 kB | 4 kB | 4 kB | 8 kB | 8 kB |
Programmable Fault Inputs | 1 + 2(1) | 1 + 2(1) | 4 | 2 + 2(1) | 1 + 2(1) | 4 | 4 |
High Speed Analog Comparators with Cycle-by-Cycle Current Limiting | 6 | 6 | 7 | 7 | 6 | 7 | 7 |
UART (SCI) | 1(1) | 1(1) | 2 | 2 | 2 | 2 | 2 |
PMBus/I2C | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Additional I2C | 0 | 0 | 0 | 1(1) | 1(1) | 1 | 1 |
SPI | 0 | 0 | 0 | 1(1) | 1(1) | 1 | 1 |
Timers | 4 (16 bit) and 1 (24 bit) |
4 (16 bit) and 1 (24 bit) |
4 (16 bit) and 1 (24 bit) |
4 (16 bit) and 1 (24 bit) |
4 (16 bit) and 1 (24 bit) |
4 (16 bit) and 2 (24 bit) |
4 (16 bit) and 2 (24 bit) |
Timer PWM Outputs | 1(1) | 1(1) | 2 | 2 | 1(1) | 4 | 4 |
Timer Capture Inputs | 2(1) | 2(1) | 1 + 3(1) | 1 + 3(1) | 2(1) | 2 + 2(1) | 2 + 2(1) |
Total Digital GPIOs | 18 | 18 | 30 | 30 | 24 | 43 | 43 |
External Interrupts | 0 | 0 | 1 | 1 | 0 | 1 | 1 |
External Crystal Clock Support | no | no | no | no | no | Yes (pins #61, 62) | Yes (pins #61, 62) |
Peak Current Mode Control | EADC2 Only | All EADC channels | EADC Only | All EADC channels | All EADC Channels | All EADC Channels | All EADC Channels |
FEATURE | UCD3138x 80 PIN |
---|---|
ARM7TDMI-S Core Processor | 31.25 MHz |
High Resolution DPWM Outputs (250ps Resolution) | 8 |
Number of High Speed Independent Feedback Loops (# Regulated Output Voltages) | 3 |
12-bit, 267ksps, General Purpose ADC Channels | 15 |
Digital Comparators at ADC Outputs | 4 |
Flash Memory (Program) (UCD3138A64) | 64 kB |
Flash Memory (Program) (UCD3138128) | 128 kB |
Flash Memory (Data) | 2 kB |
Flash Security | √ |
RAM | 8 kB |
DPWM Switching Frequency | up to 2 MHz |
Programmable Fault Inputs | 4 |
High Speed Analog Comparators with Cycle-by-Cycle Current Limiting | 7 |
UART (SCI) | 2 |
PMBus | 1 |
I2C | 1 |
SPI | 1 |
Timers | 4 (16 bit) and 2 (24 bit) |
Timer PWM Outputs | 4 |
Timer Capture Inputs | 2 |
Watchdog | √ |
On Chip Oscillator | √ |
Power-On Reset and Brown-Out Detector | √ |
Sync IN and Sync OUT Functions | √ |
Total GPIO (includes all pins with multiplexed functions such as, DPWM, Fault Inputs, SCI, etc.) | 43 |
External Interrupts | 1 |
PIN | NAME | PRIMARY ASSIGNMENT | ALTERNATE ASSIGNMENT | CONFIGURABLE AS A GPIO? |
|
---|---|---|---|---|---|
NO. 1 | NO. 2 | ||||
1 | AD13 | 12-bit ADC, Ch 13, comparator E, I-share | DAC output | ||
2 | AD12 | 12-bit ADC, Ch 12 | |||
3 | AD10 | 12-bit ADC, Ch 10 | |||
4 | AD07 | 12-bit ADC, Ch 7, Connected to comparator F and reference to comparator G | DAC output | ||
5 | AD06 | 12-bit ADC, Ch 6, Connected to comparator F | DAC output | ||
6 | AD04 | 12-bit ADC, Ch 4, Connected to comparator D | DAC output | ||
7 | AD03 | 12-bit ADC, Ch 3, Connected to comparator B and C | |||
8 | V33DIO | Digital I/O 3.3V core supply | |||
9 | DGND | Digital ground | |||
10 | RESET | Device Reset Input, active low | |||
11 | PWM2 | General purpose PWM 2 | Yes | ||
12 | PWM3 | General purpose PWM 3 | Yes | ||
13 | TCAP1 | Timer Capture Input | TCAP0 | Yes | |
14 | ADC_EXT_TRIG | ADC conversion external trigger input | Yes | ||
15 | PMBUS_CLK | PMBUS Clock (Open Drain) | Yes | ||
16 | PMBUS_DATA | PMBus data (Open Drain) | Yes | ||
17 | PMBUS_ALERT | PMBus Alert (Open Drain) | Yes | ||
18 | PMBUS_CTRL | PMBus Control (Open Drain) | Yes | ||
19 | I2C_CLK | I2C Clock | Yes | ||
20 | I2C_DATA | I2C Data | Yes | ||
21 | DGND | Digital ground | |||
22 | DPWM0A | DPWM 0A output | Yes | ||
23 | DPWM0B | DPWM 0B output | Yes | ||
24 | DPWM1A | DPWM 1A output | Yes | ||
25 | DPWM1B | DPWM 1B output | Yes | ||
26 | DPWM2A | DPWM 2A output | Yes | ||
27 | DPWM2B | DPWM 2B output | Yes | ||
28 | DPWM3A | DPWM 3A output | Yes | ||
29 | DPWM3B | DPWM 3B output | Yes | ||
30 | GPIOA | General Purpose I/O Pin | Yes | ||
31 | GPIOB | General Purpose I/O Pin | Yes | ||
32 | GPIOC | General Purpose I/O Pin | Yes | ||
33 | GPIOD | General Purpose I/O Pin | Yes | ||
34 | SYNC | DPWM Synchronize pin | Yes | ||
35 | SCI_TX0 | SCI TX 0 | Yes | ||
36 | SCI_RX0 | SCI RX 0 | Yes | ||
37 | SCI_TX1 | SCI TX 1 | Yes | ||
38 | SCI_RX1 | SCI RX 1 | Yes | ||
39 | PWM0 | General purpose PWM 0 | Yes | ||
40 | PWM1 | General purpose PWM 1 | Yes | ||
41 | DGND | Digital ground | |||
42 | EXT_INT | External Interrupt | Yes | ||
43 | FAULT0 | External fault input 0 | Yes | ||
44 | FAULT1 | External fault input 1 | Yes | ||
45 | TCK(1) | JTAG TCK (for manufacturer test only) | RTC_IN | RTC_OUT | Yes |
46 | TDO(1) | JTAG TDO (for manufacturer test only) | TCAP0 | TCAP1 | Yes |
47 | TDI(1) | JTAG TDI (for manufacturer test only) | TCAP0 | TCAP1 | Yes |
48 | TMS(1) | JTAG TMS (for manufacturer test only) | Yes | ||
49 | TCAP0 | Timer Capture Input | TCAP1 | Yes | |
50 | SPI_CS | SPI Chip Select | Yes | ||
51 | SPI_CLK | SPI Clock | Yes | ||
52 | SPI_MOSI | SPI Master Output Slave Input | Yes | ||
53 | SPI_MISO | SPI Master Input Slave Output | Yes | ||
54 | FAULT2 | External fault input 2 | Yes | ||
55 | FAULT3 | External fault input 3 | Yes | ||
56 | DGND | Digital ground | |||
57 | V33DIO | Digital I/O 3.3V core supply | |||
58 | BP18 | 1.8V Bypass (For internal use only, do not load) | |||
59 | V33D | Digital 3.3V core supply | |||
60 | DGND | Digital ground | |||
61 | RSVD | Internal use only. Tie to BP18. | |||
62 | RTC_IN_1_8 | RTC external clock input | |||
63 | AGND | Analog ground | |||
64 | EAP0 | Channel #0, differential analog voltage, positive input | |||
65 | EAN0 | Channel #0, differential analog voltage, negative input | |||
66 | EAP1 | Channel #1, differential analog voltage, positive input | |||
67 | EAN1 | Channel #1, differential analog voltage, negative input | |||
68 | EAP2 | Channel #2, differential analog voltage, positive input | |||
69 | EAN2 | Channel #2, differential analog voltage, negative input | |||
70 | AGND | Analog ground | |||
71 | V33A | Analog 3.3V supply | |||
72 | AD00 | 12-bit ADC, Ch 0, Connected to current source | |||
73 | AD01 | 12-bit ADC, Ch 1, Connected to current source | |||
74 | AD02 | 12-bit ADC, Ch 2, Connected to comparator A, I-share | |||
75 | AD05 | 12-bit ADC, Ch 5 | |||
76 | AD14 | 12-bit ADC, Ch 14 | |||
77 | AD08 | 12-bit ADC, Ch 8 | |||
78 | AD09 | 12-bit ADC, Ch 9 | |||
79 | AD11 | 12-bit ADC, Ch 11 | |||
80 | AGND | Analog ground |