MULTIPHSPOL-RD Silicon Laboratories Inc, MULTIPHSPOL-RD Datasheet

KIT REFERENCE DESIGN FOR SI825X

MULTIPHSPOL-RD

Manufacturer Part Number
MULTIPHSPOL-RD
Description
KIT REFERENCE DESIGN FOR SI825X
Manufacturer
Silicon Laboratories Inc
Type
Other Power Managementr
Datasheets

Specifications of MULTIPHSPOL-RD

Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
3.3V
Current - Output
40A
Voltage - Input
10 ~ 15V
Regulator Topology
Buck
Frequency - Switching
391kHz
Board Type
Fully Populated
Utilized Ic / Part
SI8250, SI8251, SI8252
Input Voltage
10 V to 15 V
Output Voltage
3.3 V
Interface Type
USB
Product
Power Management Modules
Supply Current
10 A
For Use With/related Products
Si8250
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1323
D
Features
Description
The Si8250/1/2 provides all control and protection functions necessary to
implement
management control systems for isolated and non-isolated power
supplies. Onboard processing capability enables intelligent control
optimization for improved system performance and new capabilities, such
as serial connectivity via the SMBus or onboard UART. The Si8250/1/2
family is in-system Flash programmable, enabling control and protection
parameters, such as system regulation and protection settings, startup
and shutdown modes, loop response, and modulation timing, to be readily
modified. The built-in, high-speed control path provides loop updates
every 100 ns and provides pulse-by-pulse current limiting and overcurrent
protection, even while the internal CPU is disabled.
The Si825x family is supported by the Si8250DK development kit, which
contains everything required to develop and program power supply
applications with the Si825x family of digital controllers.
Rev. 1.0 6/07
Single-chip, Flash-based digital
power controller
Highly-integrated control solution:
I G I TA L
Supports isolated and non-isolated
applications
such as:
control loop
supervisory processor
functions
limiting and OCP
synchronization inputs
functions, such as external power
supply sequencing and fan
control/monitoring
Enables new system capabilities
High-speed digital hardware
In-system programmable
Programmable system protection
Hardware cycle-by-cycle current
External clock and frame
Performs system management
- Adaptive dead-time control for
- Nonlinear control for faster
- Self diagnostics for higher
- SMBus port
higher efficiency
transient response
reliability
highly-intelligent,
P
O W E R
fast-response
C
Copyright © 2007 by Silicon Laboratories
O N T R O L L E R
In-system Flash programmable
Low-cost, comprehensive
development tool kit includes:
Typical Applications
Fully Pb-free and ROHS compliant
packages
Temp Range: –40 to +125 °C
Flash can also be used as NV
memory for data storage
Graphical, easy-to-use system
design tools
Integrated development
environment
In-system, on-line debugger
Turnkey isolated 35 W digital
half-bridge target board
Isolated and non-isolated DC/DC
converters
AC/DC converters
32-pin LQFP
28-pin 5x5 mm QFN
power
delivery
and
Patents pending
P1.0/VIN/AIN0
S i 8 2 5 0 / 1 / 2
P1.0/VIN/AIN0
RST/C2CK
RST / C2CK
P1.1/AIN1
VSENSE
GNDA
VDDA
VSENSE
VREF
IPK
VREF
GND
GND
VDD
IPK
1
2
3
4
5
6
7
8
Pin Assignments:
1
2
3
4
5
6
7
32-pin LQFP
See page 23
28-pin QFN
Si8250/1/2
Top View
Si8250/1/2
Top View
GND
Si8250/1/2
21
20
19
18
17
16
15
24
23
22
21
20
19
18
17
P0.0
P0.1
P0.2
P0.3 / XCLK
P0.4
P0.5
P0.6
P0.7
P0.1
P0.2
P0.3/XCLK
P0.4
P0.5
P0.6
P0.7

Related parts for MULTIPHSPOL-RD

MULTIPHSPOL-RD Summary of contents

Page 1

Features Single-chip, Flash-based digital power controller Supports isolated and non-isolated applications Enables new system capabilities such as: - Adaptive dead-time control for higher efficiency - Nonlinear control for faster ...

Page 2

Si8250/1/2 2 Rev. 1.0 ...

Page 3

Section 1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

Si8250/1/2 1. Electrical Specifications Table 1. Absolute Maximum Ratings* Parameter Ambient temperature under bias Storage temperature Voltage on any Port0 Pin with respect to GND Voltage on all other pins with respect to GND Voltage on V with respect to ...

Page 5

Table 3. Reference DAC Electrical Specifications T = –40 to +125 ° 2.5 V, SYSCLK = 25 MHz, PLLCLK = 200 MHz unless otherwise specified Parameter Resolution LSB size Integral nonlinearity (INL) Differential nonlinearity (DNL) Settling ...

Page 6

Si8250/1/2 Table 4. ADC0 (12-Bit ADC) Specifications T = –40 to +125 ° 2.5 V, SYSCLK = 25 MHz, PLLCLK = 200 MHz unless otherwise specified Parameter DC Accuracy Resolution Integral nonlinearity Differential nonlinearity Offset error ...

Page 7

Table 5. ADC1 Specifications TA = –40 to +125 ° 2.5 V, SYSCLK = 25 MHz, PLLCLK = 200 MHz unless otherwise specified. DD Parameter Sampling frequency Resolution LSB size Differential input voltage range Common-mode input voltage range ...

Page 8

Si8250/1/2 Table 7. Peak Current Limit Detector Electrical Specifications T = –40 to +125 ° 2.5 V, SYSCLK = 25 MHz, PLLCLK = 200 MHz unless otherwise specified Parameter IPK input to DPWM output latency Threshold ...

Page 9

Table 8. DPWM Specifications T = –40 to +125 ° 2.5 V, SYSCLK = 25 MHz, PLLCLK = 200 MHz unless otherwise specified Parameter Clock frequency Resolution Time resolution SYNC signal minimum LOW time SYNC pulse ...

Page 10

Si8250/1/2 Table 10. Comparator0 Specifications T = –40 to +125 ° 2.5 V, SYSCLK = 25 MHz, PLLCLK = 200 MHz unless otherwise specified Parameter V IN Low-speed supply current Full-speed supply current Hysteresis Low power ...

Page 11

Table 11. Reset Electrical Characteristics T = –40 to +125 ° 2.5 V, SYSCLK = 25 MHz, PLLCLK = 200 MHz unless otherwise specified Parameter RST output low voltage RST input high voltage RST input low ...

Page 12

Si8250/1/2 Table 13. Port I/O DC Electrical Characteristics T = –40 to +125 °C, SYSCLK = 25 MHz, PLLCLK = 200 MHz unless otherwise specified. A Parameters Port0 input voltage tolerance Port1 input voltage tolerance Output high voltage Output low ...

Page 13

Table 15. 25MHz Oscillator Specifications T = –40 to +125 ° 2.5 V, SYSCLK = 25 MHz, PLLCLK = 200 MHz unless otherwise specified Parameter Frequency Start-up time Power supply sensitivity Temperature coefficient Supply current Shutdown ...

Page 14

Si8250/1/2 2. Benefits of Digital Power Control Digitally-controlled power systems have the following key advantages over analog implementations: In-system programmability: Virtually all aspects of digital controller behavior can be changed in software locally or remotely and without hardware modification. This ...

Page 15

Product Description System Management Processor VDD 2% 25 Mhz OSC, SYSCLKIN and LFO RESET CONTROL HARDWARE DEBUG DEBUG PORT INTERRUPT CONTROL VSENSE VSENSE VREF REFDAC VREF IPK Control Processor System Management Processor VDD 50MIPS 8051 CPU SYSCLKIN and Memory ...

Page 16

Si8250/1/2 3.1. System Operation Figure 2 shows the Si8250/1/2 controlling a non- isolated dc/dc converter operating in digital voltage mode control. The output voltage signal connects to the V input through a resistive divider, limiting the SENSE common-mode voltage range ...

Page 17

The first filter stage is a PID filter providing one pole and two zeros. The second stage is selectable: a two-pole, low-pass filter (LPF) for the fastest possible response SINC (multiple zero) decimation filter for quieter ...

Page 18

Si8250/1/2 4. Design Tools The Si8250DK development kit (Figure 3) contains everything required to develop applications with the Si825x family of digital power controllers. This kit supports all phases of power supply development from controller design through real-time system debugging. ...

Page 19

Example Applications The Si825x is the ideal choice for digitally-controlled switched mode power supplies. This section provides a quick overview of the Si825x in an isolated half-bridge dc/dc converter and a single-phase point-of-load converter. Reference designs are available for ...

Page 20

Si8250/1/2 5.2. Single-Phase Point of Load (POL) Converter 400 KHz Si8252 based single phase POL converter block diagram is shown in Figure 8. DPWM outputs PH1 and PH2 control the gates of the buck and synchronous switching ...

Page 21

Layout Considerations The mixed-signal nature of the Si8250/1/2 mandates clean bias supplies and ground returns best to provide separate ground planes for analog, digital, and power switch returns. These planes should tie together at only one point ...

Page 22

Si8250/1/2 In both cases, the bias supplies must be filtered using low ESR/ESL capacitors placed close to the IC pins. Thick copper traces should be connected to the bias pins ( and the ground pins (GND, GNDA) ...

Page 23

Pin Descriptions: Si8250/1/2 32-pin LQFP RST/C2CK 1 IPK 2 VSENSE 3 Si8250/1/2 GNDA 4 Top View VDDA 5 6 VREF 7 P1.0/VIN/AIN0 8 P1.1/AIN1 Figure 13. Example Pin Configurations Name QFN-28 LQFP-32 Pin # Pin# RST/C2CK 1 IPK 2 ...

Page 24

Si8250/1/2 Table 17. Pin Descriptions (Continued) Name QFN-28 LQFP-32 Pin # Pin# P0.5 17 P0.4 18 P0.3/XCLK 19 P0.2 20 P0.1 21 P0.0 22 PH6 23 PH5 24 PH4 25 V — DD GND — PH3 26 PH2 27 PH1 ...

Page 25

Ordering Guide Ordering Number Flash Memory Si8250-IQ Si8250-IM Si8251-IQ Si8251-IM Si8252-IQ Si8252- PWM Outputs Rev. 1.0 Si8250/1/2 UART Package ...

Page 26

Si8250/1/2 9. Package Outline: 32LQFP Figure 14 illustrates the package details for the 32-pin LQFP version of the Si8250/1/2. Table 18 lists the values for the dimensions shown in the illustration. Figure 14. 32-pin LQFP Package Diagram 26 Rev. 1.0 ...

Page 27

Table 18. LQFP-32 Package Dimensions Dimension Min A — A1 0.05 A2 1.35 b 0. 0.45 aaa bbb ccc ddd Θ 0° Notes: All dimensions shown are in millimeters (mm) unless otherwise ...

Page 28

Si8250/1/2 10. Package Outline: 28QFN Figure 15 illustrates the package details for the 28-lead QFN version of the Si8250/1/2. Table 19 lists the values for the dimensions shown in the illustration. Figure 15. 28-lead Quad Flat No-lead (QFN) Package Diagram ...

Page 29

Table 19. QFN-28 Package Dimensions Dimension Min A 0. 2.90 L 0.45 aaa bbb ddd eee Z Y Notes: 1. All dimensions shown are in millimeters (mm) unless otherwise ...

Page 30

Si8250/1 OCUMENT HANGE IST Revision 0.7 to Revision 0.8 Updated DPWM phase output drive-high and drive- low resistance in Table 8, “DPWM Specifications,” on page 9. Revision 0.8 to Revision 0.9 Updated Table 5, “ADC1 Specifications,” on ...

Page 31

N : OTES Rev. 1.0 Si8250/1/2 31 ...

Page 32

... Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages. The sale of this product contains no licenses to Power-One’s intellectual property. Contact Power-One, Inc. for appropriate licenses. Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders. ...

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