- 您现在的位置：买卖IC网 > PDF目录5081 > MC34701EK (Freescale Semiconductor)IC POWER SUPPLY MCU 1A 32-SOIC PDF资料下载
参数资料
| 型号： | MC34701EK |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 27/39页 |
| 文件大小： | 0K |
| 描述： | IC POWER SUPPLY MCU 1A 32-SOIC |
| 标准包装： | 42 |
| 应用： | 转换器，Freescale 电源 QUICC? I，II |
| 输入电压： | 2.8 V ~ 6 V |
| 输出数： | 1 |
| 输出电压： | 可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 32-SOIC |
| 包装： | 管件 |
| 配用： | KIT33701DWBEVB-ND - KIT FOR 33701 POWER SUPPLY |
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页当前第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
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
DATA Definition
Table 8.
Command Byte Definitions
The DATA field in the single Data Transfer contains one or
several Command Bytes. The Command Byte identifies the
kind of operation required by the master to be performed and
1. Address field
Watchdog
Programming
(As a 2nd
Command Byte)
0
0
0
1
1
1
1
1
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1st Command
WD OFF
WD 1280ms
2. Value field
Wind. OFF
0
1
1
0
1
0
0
1
WD 320ms
Wind. OFF
MSB
Bits
LSB
0
1
1
0
1
0
1
0
WD 80ms
Wind. OFF
7 6 5 4 3 2 1 0
D7 D6 D5 D4 D3 D2 D1 D0
0
1
1
0
1
0
1
1
WD 20ms
Wind. OFF
Address Field
Value Field
0
1
1
0
1
1
0
0
WD 1280ms
Wind. ON
Figure 23. Command Byte
0
1
1
0
1
1
0
1
WD 320ms
Wind. ON
Table 7.
Address Field Definitions
0
1
1
0
1
1
1
0
WD 80ms
Address Field
Operation
Write
Wind. ON
001
Voltage Margining
W
0
1
1
0
1
1
1
1
WD 20ms
Wind. ON
011
Watchdog
W
Notes
24. The Watchdog timer is turned ON automatically after
Refer to Table 8 , page 27 , which summarizes the value
field definitions for the entire set of operation options.
receiving any other valid command byte changing watchdog
time.
Table 8.
Command Byte Definitions
Security in Writing Commands
Operation
Voltage Margining
(As a 2nd
Command Byte)
Address
0 0 1
0 0 1
0
x
0
0
Value
0
0
0
0
0
0
Action
1st Command
Output
Nominal
To improve the security level, a so-called first command is
defined to initiate each write communications. The first
command identifies the operation, which is executed by the
following command byte.
A first command has the address field equal to the related
0
0
0
0
0
0
1
1
1
x
x
x
0
0
0
0
0
0
0
1
1
1
0
1
+ 1.0%
+ 2.0%
+ 3.0%
operation one, followed by a null value field (all zeros).
Table 9 summarizes first command definitions. The master
sends the first command before the command byte for the
intended operation.
0
0
1
x
0
1
0
0
+ 4.0%
Table 9.
First Command Definitions
LDO Output: x = 0
Switcher Output
x =1
0
0
0
0
0
0
1
1
1
x
x
x
0
0
0
1
1
1
0
1
1
1
0
1
+ 5.0%
+ 6.0%
+ 7.0%
First Command
001 00000
011 00000
Operation
Voltage Margining
Watchdog Programming
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
x
x
x
x
x
x
x
1
1
1
1
1
1
1
0
0
0
0
1
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
- 1.0%
- 2.0%
- 3.0%
- 4.0%
- 5.0%
- 6.0%
- 7.0%
VOLTAGE MARGINING OPERATION
After starting the communication in Writing mode, the
master sends the first command followed by the specific
command byte to set the required voltage margining for either
the LDO or the switcher (see Figure 24 ). To achieve a
simultaneous set for both LDO and switcher, two specific
commands must be issued in sequence after the first
command, one for each supply.
34701
Analog Integrated Circuit Device Data ?
Freescale Semiconductor
27
相关PDF资料 |
PDF描述 |
|---|---|
| GCM28DRKN | CONN EDGECARD 56POS DIP .156 SLD |
| TC2015-2.85VCTTR | IC REG LDO 2.85V .1A SOT23A-5 |
| GCM28DRKH | CONN EDGECARD 56POS DIP .156 SLD |
| GSA18DRMN | CONN EDGECARD 36POS .125 SQ WW |
| GMA18DRMN | CONN EDGECARD 36POS .125 SQ WW |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC34701EKR2 | 功能描述:开关变换器、稳压器与控制器 QUICCSUPPLY1 RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MC34702EK | 功能描述:开关变换器、稳压器与控制器 QUICCSUPPLY2 RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MC34702EKR2 | 功能描述:开关变换器、稳压器与控制器 QUICCSUPPLY2 RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MC34703 | 制造商:SPC Multicomp 功能描述:HEADER R/ANGLE 7WAY 制造商:SPC Multicomp 功能描述:HEADER, R/ANGLE, 7WAY |
| MC34703PNB | 功能描述:开关变换器、稳压器与控制器 QUICC SUPPLY 3 RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。