- 您现在的位置：买卖IC网 > PDF目录359132 > MC33394 (飞思卡尔半导体(中国)有限公司) Switch Mode Power Supply with Multiple Linear Regulators and High Speed CAN Transceiver(带有多个线性稳压器和高速CAN收发器的开关方式电源) PDF资料下载
参数资料
| 型号： | MC33394 |
| 厂商： | 飞思卡尔半导体(中国)有限公司 |
| 元件分类： | CAN |
| 英文描述： | Switch Mode Power Supply with Multiple Linear Regulators and High Speed CAN Transceiver(带有多个线性稳压器和高速CAN收发器的开关方式电源) |
| 中文描述： | 开关电源的多线性稳压器和高速CAN收发器（带有多个线性稳压器和高速的CAN收发器的开关方式电源） |
| 文件页数： | 17/44页 |
| 文件大小： | 641K |
| 代理商： | MC33394 |
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页当前第17页第18页第19页第20页第21页第22页第23页第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
17
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
4.2.6. Switching Regulator Output Voltage Sense
(VPRE_S)
This is the switching regulator output voltage sense input.
The switcher output voltage VPRE is divided by an internal
resistor divider and compared with the bandgap reference
voltage (see Figure 4).
Refer to Section 5 Application Information for detailed
description of the switching regulator operation.
Figure 4. Switching Regulator Block Diagram
BUCK &
BOOST
CONTROL
LOGIC
CURRENT
LIMIT
SOFT
START
+
–
–
+
FEED
FORWARD
RAMP
GENERATOR
THERMAL
LIMIT
SWITCHER
OSCILLATOR
200 kHz
SWITCHER
MODE
ENABLE
Vbg
+
–
PWM
COMP
Vbg
Vbg
VPRE
COMP
BOOTSTRAP
VBAT
+
–
BOOST
COMP
Vbg
1.25 V
Vbg
1.25 V
Vbg
1.25 V
E/A
LS
DRIVER
HS
DRIVER
VPRE
VPRE
BOOT
SW1
VPRE
SW2G
VPRE_S
INV
VCOMP
40 k
11.7 k
4.3. Voltage Regulator (VDDH)
The VDDH output is a linearly regulated +5.0 +/– 0.10V
voltage supply capable of sourcing a maximum of 400 mA
steady state current from VPRE (+5.6 V) for VBAT voltages
from +4.0 V to +26.5 V (+45V transient). This regulator
incorporates current limit short circuit protection and thermal
shut down protection. The voltage output is stable under all
load/line conditions. However, the designer must consider
ripple and high frequency filtering as well as regulator
response, when choosing external components. See Table 1
in the Applications Information section for recommended
output capacitor parameters.
NOTE :
Backfeeding into the VDDH output can cause problems
during the power up sequence. Refer to the Electrical
Characteristics VDDH Regulator Section for the maximum
allowed backfed current into the VDDH output.
4.4. Tracking Voltage Regulator (VPP)
This linearly regulated +5.0 V/+3.3 V (SPI selectable)
voltage supply is capable of sourcing 150 mA of steady state
current from VPRE (+5.6 V) for VBAT voltage from +4.0 V to
+26.5 V (up to +45V transient). It tracks the VDDH or VDD3_3
output, and incorporates current limit short circuit protection
and over temperature shut down protection. This output is
intended for FLASH memory programming and includes a
dedicated enable pin (VPP_EN). The regulator enable can
also be controlled through the SPI interface but requires both
the VPP_EN pin and the SPI bit (EN_VPP bit) to be high to
enable. The selection of tracking VDDH or VDD3_3 is
controlled by the VPP_V bit in the SPI. Logic “1” selects VDDH
(default), logic “0” selects VDD3_3. The voltage output is
stable under all load/line conditions. However, the designer
must consider ripple and high frequency filtering as well as
regulator response when choosing external components. See
Table 1 for recommended output capacitor parameters.
The VPP tracking regulator should not be used in parallel
with the VDDH regulator, because this arrangement can
corrupt the proper power sequencing of the IC.
4.5. Tracking Voltage Regulator (VREFn)
The outputs of the VREF1, VREF2, VREF3 linear regulators
are 100 mA at +5.0 V. They track the VDDH output. The power
supplies are designed to supply power to sensors that are
located external to the module. These regulators may be
enabled or disabled via the SPI, which also provides fault
reporting for these regulators. They are protected for short to
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
相关PDF资料 |
PDF描述 |
|---|---|
| MC33395 | Three-Phase Gate Driver IC(3相栅极驱动器) |
| MC33397 | Dual/Hex Low-Side Switch with Both SPI and Parallel Input Control(带SPI和并口输入控制的2或6低端开关) |
| MC33399 | “Local Interconnect Network” Physical Interface(“本地互联网”（LIN）物理接口) |
| MC33486 | Dual High Side Switch for H-Bridge Automotive Applications(适合于H桥自动应用的双高端开关) |
| MC33661 | LIN Enhanced Physical Interface(LIN网增强型物理接口) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC33394DH | 功能描述:IC POWER SUPPLY MULT-OUT 44-HSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 专用 系列:- 标准包装:3,000 系列:- 应用:PDA，便携式音频/视频，智能电话 接口:I²C，2 线串口 电源电压:1.65 V ~ 3.6 V 封装/外壳:24-WQFN 裸露焊盘 供应商设备封装:24-QFN 裸露焊盘（4x4） 包装:带卷 (TR) 安装类型:表面贴装 产品目录页面:1015 (CN2011-ZH PDF) 其它名称:296-25223-2 |
| MC33395DWB | 功能描述:马达/运动/点火控制器和驱动器 TPD RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| MC33395DWBR2 | 功能描述:马达/运动/点火控制器和驱动器 TPD RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| MC33395EW | 功能描述:马达/运动/点火控制器和驱动器 TPD - THREE PHASE DRIVER RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| MC33395EWR2 | 功能描述:马达/运动/点火控制器和驱动器 TPD - THREE PHASE DRIVER RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。