参数资料
型号: SI8252-IQ
厂商: SILICON LABORATORIES
元件分类: 微控制器/微处理器
英文描述: DIGITAL POWER CONTROLLER
中文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PQFP32
封装: ROHS COMPLIANT, LQFP-32
文件页数: 15/30页
文件大小: 932K
代理商: SI8252-IQ
Si8250/1/2
Preliminary Rev. 0.8
15
3. Product Description
Figure 1. Functional Block Diagram
Figure 2. Si8250 Top-Level Block Diagram
Si8250/1/2
System Management Processor
I/O (8)
I/O (8)
5
1280 Byte
RAM
16/32 kB
Flash
P
8
M
TEMP
SENSOR
P
HARDWARE
DEBUG
RESET
CONTROL
2% 25 Mhz OSC,
and LFO
INTERRUPT
CONTROL
4x 16-BIT
TIMERS
SMBus
3 CH PCA
I/O PORT
LATCHES
ADC
REGISTERS
& LIMIT
DETECTORS
12-BIT
200 Ksps
ADC
UART
AUTO
SCAN
LOGIC
VSENSE
DEBUG
PORT
VDD
SYSCLKIN
Control Processor
IPK
VSENSE
VREF
GATE CONTROL
(6)
MULTIPHASE
DPWM
Pulse-by-Pulse
Current Limiter
and OCP
ICYC
u(n)
10 MHz
ADC
REFDAC
VREF
DSP
FILTER ENGINE
VSENSE
OCP
POWER STAGES
Si8250
System Management Processor
P
I
TEMP
SENSOR
P
50MIPS 8051 CPU
and Memory
Digital Peripherals:
- UART
- SMBus Port
- 4 x 16-Bit Timers
- 3 Ch PCA (PWM)
- I/O Port Latches
VSENSE
DEBUG
PORT
VDD
SYSCLKIN
Control Processor
IPK
VSENSE
VREF
MULTIPHASE
DPWM
Pulse-by-Pulse
Current Limiter
and OCP
ICYC
u(n)
ADC1
10Msps
REFDAC
VREF
DSP
FILTER ENGINE
VSENSE
OCP
ADC 0
12-Bit, 200Ksps
10-Channel
Up to 6 Gate
Control Outputs
GATE
DRIVERS
16 General-Purpose
Analog/Digital I/O Lines
SUPPLY INPUT
VOLTAGE
OUTPUT
FILTER
SWITCHES
AND
MAGNETICS
Analog Input (e.g. average current)
Digital Ouput (e.g. fan speed control)
VOUT
Peak Current Signal (e.g. CT)
相关PDF资料
PDF描述
SI8250 DIGITAL POWER CONTROLLER
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SI8250-IQ DIGITAL POWER CONTROLLER
SI8401DB-T1 P-Channel 20-V (D-S) MOSFET, Low-Threshold
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