參數(shù)資料
型號: PIC16C433T-E/SO
廠商: Microchip Technology
文件頁數(shù): 28/126頁
文件大?。?/td> 0K
描述: IC MCU CMOS 8BIT 10MHZ 2K 18SOIC
標(biāo)準(zhǔn)包裝: 1,100
系列: PIC® 16C
核心處理器: PIC
芯體尺寸: 8-位
速度: 10MHz
連通性: LIN(本地互連網(wǎng)絡(luò))
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 5
程序存儲(chǔ)器容量: 3.5KB(2K x 14)
程序存儲(chǔ)器類型: OTP
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 18-SOIC(0.295",7.50mm 寬)
包裝: 帶卷 (TR)
123
4378C–AVR–09/08
AT90PWM1
16. Power Stage Controller – (PSC0, PSC2)
The Power Stage Controller is a high performance waveform controller.
16.1
Features
PWM waveform generation function (2 complementary programmable outputs)
Dead time control
Standard mode up to 12 bit resolution
Frequency Resolution Enhancement Mode (12 + 4 bits)
Frequency up to 64 Mhz
Conditional Waveform on External Events (Zero Crossing, Current Sensing ...)
All on chip PSC synchronization
ADC synchronization
Overload protection function
Abnormality protection function, emergency input to force all outputs to high impedance or in
inactive state (fuse configurable)
Center aligned and edge aligned modes synchronization
Fast emergency stop by hardware
16.2
Overview
Many register and bit references in this section are written in general form.
A lower case “n” replaces the PSC number, in this case 0, 1 or 2. However, when using the
register or bit defines in a program, the precise form must be used, i.e., PSOC1 for
accessing PSC 0 Synchro and Output Configuration register and so on.
A lower case “x” replaces the PSC part , in this case A or B. However, when using the
register or bit defines in a program, the precise form must be used, i.e., PFRCnA for
accessing PSC n Fault/Retrigger n A Control register and so on.
The purpose of a Power Stage Controller (PSC) is to control power modules on a board. It has
two outputs on PSC0 and PSC1 and four outputs on PSC2.
These outputs can be used in various ways:
“Two Ouputs” to drive a half bridge (lighting, DC motor ...)
“One Output” to drive single power transistor (DC/DC converter, PFC, DC motor ...)
“Four Outputs” in the case of PSC2 to drive a full bridge (lighting, DC motor ...)
Each PSC has two inputs the purpose of which is to provide means to act directly on the gener-
ated waveforms:
Current sensing regulation
Zero crossing retriggering
Demagnetization retriggering
Fault input
The PSC can be chained and synchronized to provide a configuration to drive three half bridges.
Thanks to this feature it is possible to generate a three phase waveforms for applications such
as Asynchronous or BLDC motor drive.
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