- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98050 > P95020ZNQGI (INTEGRATED DEVICE TECHNOLOGY INC) 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC132 PDF資料下載
參數(shù)資料
| 型號： | P95020ZNQGI |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC132 |
| 封裝： | QFN-132 |
| 文件頁數(shù)： | 118/137頁 |
| 文件大?。?/td> | 3533K |
| 代理商： | P95020ZNQGI |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁當前第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁
P95020 / Preliminary Datasheet
Revision 0.7.10
81
2010 Integrated Device Technology, Inc.
Function
Default Setting
Current Limit
100%
Clock Frequency
2 MHz
Operating Mode
PWM
After the external POR releases, the individual Global Enable bits can be set to HIGH. Since the default value of the local
ENABLE bit is LOW, the supply will not start at this time.
To enable a converter, the local ENABLE bit is set to HIGH by writing the voltage value to the Output Voltage Register.
The Output Voltage value must be included each time the converter is enabled or disabled. There is a default value for
each converter that can be read and written back along with the ENABLE bit or a different value can be written. When the
ENABLE bit becomes set the Buck Converter will then enter its soft-start sequence, and transition to the programmed
voltage.
NOTE: Changes to the Output Voltage Register settings can be written directly without disabling the converter.
8.5.2
BUCK1000 & BUCK500 - Normal Disabling / Enabling
Setting either the Global Enable bit to LOW or the local ENABLE bit to LOW will turn off the Buck Converter.
The Global Enable bits sole purpose is to shut down the converter into its lowest power shutdown mode. It is not
intended to be used to toggle the Buck Converter off and on. Proper operation is only guaranteed by toggling the
ENABLE bit once the Global Enable bit is set HIGH to take it out of low power shutdown mode.
8.5.3
BUCK1000 & BUCK500 - Soft Start Sequence
There is a 50 s delay after the ENABLE bit is set and then an internal counter ramps up, requiring 80 s/volt from zero to
the programmed Output Voltage setting. Once the Soft Start sequence is initiated, any changes to the values in the
Output Voltage Register are ignored until the Soft Start sequence is complete.
8.5.4
BUCK1000 & BUCK500 - Current Limit Protection
The Buck Converter includes pulse by pulse peak current limiting circuitry for over-current conditions. The limit can be set
at various percentages of maximum setting (See Table 20). During an over-current condition the output voltage is allowed
to drop below the specified voltage and will be indicated by the status of the PGOOD bit. When the over-current state is
ended the output returns to normal operation.
8.5.5
BUCK1000 & BUCK500 - Short Circuit Protection
The Buck Converter includes short-circuit protection circuitry. When a short circuit occurs, the output will be latched into a
disabled mode and a fault will be indicated in the SC_FAULT bit. The local ENABLE bit must be first toggled LOW and
then back to HIGH again to clear the short circuit latch. Any subsequent Short Circuit will override the local ENABLE bit
setting and re-latch the output to a disabled mode.
8.6
BUCK1000 & BUCK500 - APPLICATIONS INFORMATION
BUCK
CONTROLLER
VIN
FEEDBACK
OUT
VIN = 3.8V
GND
COUT
VOUT
CIN
L
1
2
P
CONTROL &
MONITORING
Figure 20
– BUCK500 or BUCK 1000 Applications Diagram
8.6.1
BUCK500 - Recommended External Components
ID
Description
CIN
10 F, 10V, Ceramic, X5R
COUT
22 F, 10V, Ceramic, X5R
L
4.7 H, 1.5A (for 1 MHz or 2 MHz operation)
相關PDF資料 |
PDF描述 |
|---|---|
| P95020ZNQG | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC132 |
| P95020ZLLG8 | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA124 |
| P95020ZLLGI8 | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA124 |
| PBL3717A | STEPPER MOTOR CONTROLLER, 1.2 A, PDIP16 |
| PC13892AJVL | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA186 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| P95021NQG | 功能描述:PMIC 解決方案 Integrates Audio, LED B/Light Pwr Mgt RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| P95021NQG8 | 制造商:Integrated Device Technology Inc 功能描述:POWER MANAGEMENT, AUDIO & CONT 制造商:Integrated Device Technology Inc 功能描述:132-VFQFPN - Tape and Reel 制造商:Integrated Device Technology Inc 功能描述:Integrates Audio, LED B/Light Pwr Mgt |
| P950-36I | 制造商:Tripp Lite 功能描述:SERIAL ATA II SIGNAL CABLE, 2X7-PIN STRAIGHT CONNECTOR - 39" - Bulk |
| P9508- | 制造商:ROEBUCK 功能描述:ROEBUCK DISH WASHING BRUSH |
| P9-511121 | 功能描述:按鈕開關 Flush Dome Solder 5A SPST-DB, SPDT-DB RoHS:否 制造商:OTTO 觸點形式: 開關功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 安裝風格: 照明: 照明顏色: IP 等級: 端接類型: 觸點電鍍: 執(zhí)行器: 蓋顏色: 封裝: 可燃性等級: |
發(fā)布緊急采購，3分鐘左右您將得到回復。