- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359134 > MC34701EK (飛思卡爾半導(dǎo)體(中國(guó))有限公司) 1.5 A Switch-Mode Power Supply with Linear Regulator PDF資料下載
參數(shù)資料
| 型號(hào)： | MC34701EK |
| 廠商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | 1.5 A Switch-Mode Power Supply with Linear Regulator |
| 中文描述： | 1.5開關(guān)模式電源，線性穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 28/38頁(yè) |
| 文件大?。?/td> | 739K |
| 代理商： | MC34701EK |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)當(dāng)前第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)
Analog Integrated Circuit Device Data
Freescale Semiconductor
28
34701
FUNCTIONAL DESCRIPTION
FUNCTIONAL DEVICE OPERATION
Figure 25. Watchdog Timer Programming
Note:
x bits, which set the watchdog timer value are
defined in
Table 8
, page
27
.
Communication Stop
Only the master can terminate the data transfer by issuing
a STOP condition. The slave waits for this condition to
resume its initial state waiting for the next START condition
(see
Figure 26
).
COMPLETE DATA TRANSFER EXAMPLES
The master device controlling the I
2
C bus always starts
addressing a 34701 slave IC in writing mode (R/W = 0) to
enable it to write a Command Byte just after receiving the
address acknowledge sent by 34702. I
2
C bus protocol
defines this circumstance as a master-transmitter and slave-
receiver configuration.
Figure 27
illustrates a communication beginning with the
slave address, the
first command
for voltage margining, and
a third byte containing the address field
001
and the value
field
00101
corresponding with the LDO fifth setting (LDO
output voltage = +5% above its nominal value). If a
simultaneous setting for switcher is needed, a fourth byte
should be included before the STOP condition (P); for
instance,
001 11100
to set the switcher in its twelfth setting
(switcher output voltage = -5% below its nominal value) - see
Figure 28
.
The example of data transfer setting the Watchdog timer is
shown in the
Figure 26
.
Figure 26. Data Transfer Example - Watch Dog Timer
Setting.
Figure 27. Data Transfer Example - LDO Voltage
Margining
Figure 28. Data Transfer Example - LDO and Switcher
Voltage Margining
0 1
0 0 0 0 0
1
1
0
1
x
x
x
x
x
First Byte for Watchdog Programming Command Byte
Ack
START
Slave Address
Write
First Command
for Watchdog Programming
Address Field Value Field:
Time-out WD = 320 ms
(Window OFF)
STOP
P
Ack
A6
A4
A0
0
1
1
0
0
0
Ack
0
0
Ack
0
1
1
0
1
0
0
1
S
A5
A3 A2 A1
0
START
Slave Address
Write
First Command
for Voltage Margining
Address Field Value Field = LDO
5th Setting
STOP
P
Ack
A6
A4
A0
0
0
1
0
0
0
Ack
0
0
Ack
0
0
1
0
0
1
0
1
S
A5
A3 A2 A1
0
START
Slave Address
Write
First Command
for Voltage Margining
Address Field Value Field: LDO
V
LDO
= Nom. + 5%
Ack
A6
A4
A0
0
0
1
0
0
0
Ack
0
0
Ack
0
0
1
0
0
1
0
1
S
A5
A3 A2 A1
0
Address Field Value Field: Switcher
V
OUT
= Nom. - 5%
STOP
P
Ack
0
0
1
1
1
1
0
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC34701R2 | 1.5 A Switch-Mode Power Supply with Linear Regulator |
| MC34920 | 2.8 Ohm(Typ) Quad H-Bridge Motor Driver(2.8歐（典型值）四H橋電機(jī)驅(qū)動(dòng)器) |
| MC34923 | Full-Bridge PWM Motor Driver(全橋PWM電機(jī)驅(qū)動(dòng)器) |
| MC34982PNA | Single Intelligent High-Current Self-Protected Silicon High-Side Switch (2.0 mOhm)(單智能大電流帶自保護(hù)功能的硅高端開關(guān)（2mOhm）) |
| MC35004 | GENERAL PURPOSE QUAD J FET OPERATIONAL AMPLIFIERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC34701EKR2 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 QUICCSUPPLY1 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MC34702EK | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 QUICCSUPPLY2 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MC34702EKR2 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 QUICCSUPPLY2 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝: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:開關(guān)變換器、穩(wěn)壓器與控制器 QUICC SUPPLY 3 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。