- 您现在的位置：买卖IC网 > PDF目录16632 > MC34912BACR2 (Freescale Semiconductor)IC SYSTEM BASIS CHIP LIN 32-LQFP PDF资料下载
参数资料
| 型号： | MC34912BACR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 78/95页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM BASIS CHIP LIN 32-LQFP |
| 标准包装： | 2,000 |
| 应用： | 系统基础芯片 |
| 电流 - 电源： | 4.5mA |
| 电源电压： | 5.5 V ~ 18 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-LQFP |
| 供应商设备封装： | 32-LQFP（7x7） |
| 包装： | 带卷 (TR) |
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页当前第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页
MC33912BAC / MC34912BAC
FUNCTIONAL DEVICE OPERATIONS
OPERATIONAL MODES
LOW SIDE OUTPUT PINS LS1 AND LS2
These outputs are two low side drivers intended to drive
relays incorporating the following features:
? PWM capability (software maskable)
? Open load detection
? Current limitation
? Over-temperature shutdown (with maskable interrupt)
? Active clamp (for driving relays)
? High-voltage shutdown (software maskable)
The low side switches are controlled by the bit LS1:2 in the
Low Side Control Register (LSCR).
To protect the device against over-voltage when an inductive
load (relay) is turned off. An active clamp will re-enable the
low side FET if the voltage on the LS1 or LS2 pin exceeds a
certain level.
PWM Capability (direct access)
Each low side driver offers additional (to the SPI control)
direct control via the PWMIN pin.
If both the bits LS1 and PWMLS1 are set in the Low Side
Control Register (LSCR), then the LS1 driver is turned on if
the PWMIN pin is high and turned off if the PWMIN pin is low.
The same applies to the LS2 and PWMLS2 bits for the LS2
driver.
HVSE
Interrupt
Control
V DD
V DD
Module
PWMIN
PWMLSx
active
clamp
LSx
MOD1:2
LSx
LSxOP
LSxCL
Control
on/off
Status
Low Side Driver
(active clamp)
Open-load Detection
Current Limitation
Over-temperture Shutdown (interrupt maskable)
High-voltage shutdown (maskable)
PGND
Figure 41. Low Side Drivers LS1 and LS2
Open Load Detection
Each low side driver signals an open load condition if the
current through the low side is below the open load current
threshold.
The open load condition is indicated with the bit LS1OP and
LS2OP in the Low Side Status Register (LSSR).
Current Limitation
Each low side driver has a current limitation. In combination
with the over-temperature shutdown the low side drivers are
protected against over-current and short-circuit failures.
When the drivers operate in current limitation, this is indicated
with the bits LS1CL and LS2CL in the LSSR.
Note: If the drivers are operating in current limitation mode
excessive power might be dissipated.
Over-temperature Protection (LS Interrupt)
Both low side drivers are protected against over-temperature.
In case of an over-temperature condition both low side
Control Module. The shutdown is indicated as an LS Interrupt
in the Interrupt Source Register (ISR).
If the bit LSM is set in the Interrupt Mask Register (IMR) than
an Interrupt (IRQ) is generated.
A write to the Low Side Control Register (LSCR), when the
over-temperature condition is gone, will re-enable the low
side drivers.
High-voltage Shutdown
In case of a high-voltage condition and if the high-voltage
shutdown is enabed (bit HVSE in the Mode Control Register
(MCR) is set) both low sides drivers are shut down.
A write to the Low Side Control Register (LSCR), when the
high-voltage condition is gone, will re-enable the low side
drivers.
Sleep And Stop Mode
The low side drivers are disabled in Sleep and Stop mode.
drivers are shut down and the event is latched in the Interrupt
33912
Analog Integrated Circuit Device Data ?
78
Freescale Semiconductor
相关PDF资料 |
PDF描述 |
|---|---|
| HMC07DRTI-S13 | CONN EDGECARD 14POS .100 EXTEND |
| B82476A1682M | INDUCTOR POWER 6.8UH 4.4A SMD |
| HSC10DRES-S13 | CONN EDGECARD 20POS .100 EXTEND |
| H2MXS-5018M | DIP CABLE - HDM50S/AE50M/X |
| MC34912BAC | IC SYSTEM BASIS CHIP LIN 32-LQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC34912BTACR2 | 功能描述:LIN 收发器 SBC LIN 2G RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
| MC34912G5AC | 功能描述:LIN 收发器 SBCLIN2.5G predriver & CS RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
| MC34912G5ACR2 | 功能描述:接口 - 专用 SBCLIN2.5G PREDRIVER&CS RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| MC34913 | 制造商:SPC Multicomp 功能描述:PLUG PANEL MOUNT 4WAY 制造商:SPC Multicomp 功能描述:PLUG, PANEL MOUNT, 4WAY 制造商:SPC Multicomp 功能描述:PLUG AND SOCKET CONNECTOR HOUSING; Series:2259(5559)A; No. of Positions:4; Pitch Spacing:4.2mm; For Use With:4.2mm Pin & Socket Connectors; Color:Natural; Connector Mounting:Panel; Connector Type:Plug & Socket; Gender:Receptacle ;RoHS Compliant: Yes |
| MC34915 | 制造商:SPC Multicomp 功能描述:PLUG PANEL MOUNT 5WAY 制造商:SPC Multicomp 功能描述:PLUG, PANEL MOUNT, 5WAY 制造商:SPC Multicomp 功能描述:PLUG AND SOCKET CONNECTOR HOUSING; Series:2259(5559)A; No. of Positions:5; Pitch Spacing:4.2mm; For Use With:4.2mm Pin & Socket Connectors; Color:Natural; Connector Mounting:Panel; Connector Type:Plug & Socket; Gender:Receptacle ;RoHS Compliant: Yes |
发布紧急采购，3分钟左右您将得到回复。