- 您现在的位置：买卖IC网 > PDF目录98246 > TLE8242-2 (INFINEON TECHNOLOGIES AG) SPECIALTY ANALOG CIRCUIT, PQFP64 PDF资料下载
参数资料
| 型号： | TLE8242-2 |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP64 |
| 封装： | GREEN, PLASTIC, LQFP-144 |
| 文件页数： | 24/78页 |
| 文件大小： | 1589K |
| 代理商： | TLE8242-2 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页
TLE8242-2
Functional Description and Electrical Characteristics
Data Sheet
30
Rev. 1.0, 2010-02-09
5.7
Direct PWM control
In Direct PWM control mode, the PI control loop is disabled. The integrator in the constant current control logic is
cleared and held at 0 while direct PWM mode is active. The frequency and duty cycle of the OUTx pin signal is
directly controlled via SPI messages.
5.7.1
Selecting the Frequency of Operation
The period of the PWM is programmed in whole numbers of clocks from the CLK input (as in constant current
mode). The following formula is applied:
or
The value N is the divider programmed via the SPI interface. The IC will automatically limit the lower value of N to
79. If a value lower than 79 is programmed, the IC shall default N for that channel to 79 and return a value of 79
in the SPI response. The maximum value of N is 214-1 as it is programmed as a 14-bit number via SPI.
If a new value of N is programmed during operation, the new value of N will be returned on the next SPI message,
and the new value of N will be used at the beginning of the next PWM cycle. The default value for N is 625.
The value of M is the number of A/D samples in one PWM period. M is programmed with the value 32, 64, 128,
or 512 via an SPI message. The default value for M is 32. The PWM frequency multiplied by the value M is the
analog to digital converter sample rate. This sample rate must be no greater than 128 KHz.
5.7.2
Selecting the Duty Cycle
The duty cycle of the PWM is also programmed in whole numbers of clocks from the CLK input. The following
formula is applied:
PWM duty cycle is a 19 bit value programmed in SPI message # 15 “PWM duty cycle”.
or
The maximum duty cycle is clipped to 100%
N
*
M
*
T
CLK
PWM =
N
*
M
f
CLK
PWM =
32
M
cycle
duty
PWM
*
T
CLK
ON
=
[]
100%
N
32
cycle
duty
PWM
%
Cycle
Duty
=
相关PDF资料 |
PDF描述 |
|---|---|
| TLE8366EV33 | SWITCHING REGULATOR, PDSO8 |
| TLE8366EV50 | SWITCHING REGULATOR, PDSO8 |
| TLS2205DL | VOICE COIL MOTOR CONTROLLER, 1.4 A, PDSO48 |
| TLV0831CD | 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8 |
| TLV0831ID | 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TLE82452SAALLA1 | 制造商:Infineon Technologies AG 功能描述:TRANSMISSION_IC - Rail/Tube |
| TLE82452SAAUMA1 | 制造商:Infineon Technologies AG 功能描述:TRANSMISSION_IC - Tape and Reel |
| TLE8250G | 功能描述:CAN 接口集成电路 High Speed CAN Transceiver RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube |
| TLE8250GVIO | 功能描述:CAN 接口集成电路 High Speed CAN Transceiver RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube |
| TLE8250GVIOXUMA1 | 制造商:Infineon Technologies AG 功能描述:CAN 1MBd Standby 5V 8-Pin DSO 制造商:Infineon Technologies AG 功能描述:TRANSCEIVER - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC TXRX CAN HS DSO-8 |
发布紧急采购，3分钟左右您将得到回复。