- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69509 > TPS51116RGER (TEXAS INSTRUMENTS INC) 6 A SWITCHING CONTROLLER, PQCC24 PDF資料下載
參數(shù)資料
| 型號： | TPS51116RGER |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 6 A SWITCHING CONTROLLER, PQCC24 |
| 封裝： | 4 X 4 MM, GREEN, PLASTIC, QFN-24 |
| 文件頁數(shù)： | 9/40頁 |
| 文件大?。?/td> | 931K |
| 代理商： | TPS51116RGER |
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
Overvoltage and Undervoltage Protection for VDDQ
V5IN (PWP), V5FILT (RGE) Undervoltage Lockout (UVLO) Protection
V5IN (PWP), V5FILT (RGE) Input Capacitor
Thermal Shutdown
www.ti.com................................................................................................................................................................ SLUS609H – MAY 2004 – REVISED JULY 2009
TPS51116 monitors a resistor divided feedback voltage to detect overvoltage and undervoltage. If VDDQSET is
connected to V5IN or GND, the feedback voltage is made by an internal resistor divider inside VDDQSNS pin. If
an external resistor divider is connected to VDDQSET pin, the feedback voltage is VDDQSET voltage itself.
When the feedback voltage becomes higher than 115% of the target voltage, the OVP comparator output goes
high and the circuit latches as the top MOSFET driver OFF and the bottom MOSFET driver ON.
Also, TPS51116 monitors VDDQSNS voltage directly and if it becomes greater than 4 V TPS51116 turns off the
top MOSFET driver. When the feedback voltage becomes lower than 70% of the target voltage, the UVP
comparator output goes high and an internal UVP delay counter begins counting. After 32 cycles, TPS51116
latches OFF both top and bottom MOSFETs. This function is enabled after 1007 cycles of SMPS operation to
ensure startup.
TPS51116 has 5-V supply undervoltage lockout protection (UVLO). When the V5IN (PWP) voltage or V5FILT
(RGE) voltage is lower than UVLO threshold voltage, SMPS, VTTLDO and VTTREF are shut off. This is a
non-latch protection.
Add a ceramic capacitor with a value between 1.0
F and 4.7 F placed close to the V5IN (PWP) pin or V5FILT
(RGE) pin to stabilize 5 V from any parasitic impedance from the supply.
TPS51116 monitors the temperature of itself. If the temperature exceeds the threshold value, 160°C (typ),
SMPS, VTTLDO and VTTREF are shut off. This is a non-latch protection and the operation is resumed when the
device is cooled down by about 10°C.
Copyright 2004–2009, Texas Instruments Incorporated
17
Product Folder Link(s): TPS51116
相關PDF資料 |
PDF描述 |
|---|---|
| TPS51116PWPRG4 | 6 A SWITCHING CONTROLLER, PDSO20 |
| TPS51117RGYRG4 | SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, PQCC14 |
| TPS51117RGYTG4 | SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, PQCC14 |
| TPS51120RHBTG4 | 0.1 A DUAL SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PQCC32 |
| TPS51120RHBRG4 | 0.1 A DUAL SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PQCC32 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPS51116RGERG4 | 功能描述:DC/DC 開關控制器 DDR2 SWITCHER AND LDO RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS51116RGET | 功能描述:DC/DC 開關控制器 DDR2 SWITCHER AND LDO RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS51116RGET | 制造商:Texas Instruments 功能描述:DC/DC CONVERTER IC 制造商:Texas Instruments 功能描述:IC, SYNC BUCK CONTROLLER, VQFN-24 |
| TPS51116RGETG4 | 功能描述:DC/DC 開關控制器 DDR2 SWITCHER AND LDO RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS51117 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER |
發(fā)布緊急采購，3分鐘左右您將得到回復。