- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384708 > MAX8632ETI (Maxim Integrated Products, Inc.) Quadruple 2-Input Positive-NAND Gates With Open-Drain Outputs 14-CDIP -55 to 125 PDF資料下載
參數(shù)資料
| 型號： | MAX8632ETI |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Quadruple 2-Input Positive-NAND Gates With Open-Drain Outputs 14-CDIP -55 to 125 |
| 中文描述： | 集成的DDR電源適用于臺式機，筆記本電腦解決方案和圖形卡 |
| 文件頁數(shù)： | 9/29頁 |
| 文件大?。?/td> | 512K |
| 代理商： | MAX8632ETI |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當前第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
M
Integrated DDR Power-Supply Solution for
Desktops, Notebooks, and Graphic Cards
_______________________________________________________________________________________
9
Pin Description
PIN
NAME
FUNCTION
1
TON
On-Time Selection-Control Input. This four-level logic input sets the nominal DH on-time. Connect to
GND, REF, AV
DD
, or leave TON unconnected to select the following nominal switching frequencies:
TON = AV
DD
(200kHz)
TON = open (300kHz)
TON = REF (450kHz)
TON = GND (600kHz)
2
OVP/
UVP
Overvoltage-/Undervoltage-Protection Control Input. This four-level logic input enables or disables the
overvoltage and/or undervoltage protection. The overvoltage limit is 116% of the nominal output
voltage. The undervoltage limit is 70% of the nominal output voltage. Discharge mode is enabled when
OVP is also enabled. Connect the OVP/UVP pin to the following pins for the desired function:
OVP/UVP = AV
DD
(Enable OVP and discharge mode, enable UVP.)
OVP/UVP = open (Enable OVP and discharge mode, disable UVP.)
OVP/UVP = REF (Disable OVP and discharge mode, enable UVP.)
OVP/UVP = GND (Disable OVP and discharge mode, disable UVP.)
3
REF
+2.0V Reference Voltage Output. Bypass to GND with a 0.1μF (min) capacitor. REF can supply 50μA
for external loads. Can be used for setting voltage for ILIM. REF turns off when
SHDN
is low and
OUT < 0.1V.
4
ILIM
Valley Current-Limit Threshold Adjustment for Buck Regulator. The current-limit threshold across PGND
and LX is 0.1 times the voltage at ILIM. Connect ILIM to a resistive divider, typically from REF to GND,
to set the current-limit threshold between 25mV and 200mV. This corresponds to a 0.25V to 2V range at
ILIM. Connect ILIM to AV
DD
to select the 50mV default current-limit threshold. See the
Setting the
Current Limit (Buck)
section.
5
POK1
Buck Power-Good Open-Drain Output. POK1 is low when the buck output voltage is more than 10%
above or below the normal regulation point or during soft-start. POK1 is high impedance when the
output is in regulation and the soft-start circuit has terminated. POK1 is low in shutdown.
6
POK2
LDO Power-Good Open-Drain Output. In normal mode, POK2 is low when either VTTR or VTTS is more
than 10% above or below the normal regulation point, which is typically REFIN / 2. In standby mode,
POK2 responds only to the VTTR input. POK2 is low in shutdown, and when V
REFIN
is less than 0.8V.
7
STBY
Standby. Connect to GND for low-quiescent mode where the VTT output is open circuit. POK2 takes
input from only VTTR in this mode. PWM output can be on or off, depending on the state of
SHDN
.
8
SS
Soft-Start Control for VTT. Connect a capacitor (C9 in the Typical Applications Circuit of Figure 8) from
SS to ground. Leave SS open to disable soft-start. SS discharges to ground when VTT is off. See the
POR, UVLO, and Soft-Start
section.
9
VTTS
Sensing Pin for Termination Supply Output. Normally connected to VTT pin to allow accurate regulation
to half the REFIN voltage. Connected to a resistive divider from VTT to GND to regulate VTT to higher
than half the REFIN voltage.
10
VTTR
Termination Reference Voltage. VTTR tracks V
REFIN
/ 2.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX8632 | Quadruple 2-Input Positive-NAND Gates With Open-Drain Outputs 20-LCCC -55 to 125 |
| MAX863EEE | Dual, High-Efficiency, PFM, Step-Up DC-DC Controller |
| MAX864 | Dual-Output Charge Pump with Shutdown |
| MAX864EEE | Dual-Output Charge Pump with Shutdown |
| MAX865 | Compact, Dual-Output Charge Pump |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8632ETI+ | 功能描述:PMIC 解決方案 DDR Power-Supply Solution RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX8632ETI+T | 功能描述:PMIC 解決方案 DDR Power-Supply Solution RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX8632ETI+TGD2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8632EVKIT | 功能描述:電源管理IC開發(fā)工具 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX8633ELA+ | 制造商:Maxim Integrated Products 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。