參數(shù)資料
型號(hào): TPS561000PWP
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 1.4 A SWITCHING CONTROLLER, PDSO28
封裝: PLASTIC, TSSOP-28
文件頁數(shù): 14/27頁
文件大?。?/td> 370K
代理商: TPS561000PWP
TPS56100
HIGH-EFFICIENCY DSP POWER SUPPLY CONTROLLER
FOR 5-V INPUT SYSTEMS
SLVS201A – JUNE 1999 – REVISED JULY 1999
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
slowstart timing (continued)
Set the slowstart timing using the formula:
C5
+
tss
5
R
VREFB
tss
(5
R5)
Where
C5 = Slowstart capacitance in
F
tSS = Slowstart timing in s
RVREFB = Resistance from VREFB to GND in ohms (≈ R5)
hysteresis voltage
A hysteretic controller regulates by self-oscillation, thus requiring a small ripple voltage on the output which the
input comparator uses for sensing. Once selected, the TPS56100 hysteresis is proportional to the reference
voltage; programming Vref to a new value automatically adjusts the hysteresis to be the same percentage of
Vref. The actual output ripple voltage is the combination of the hysteresis voltage, overshoot caused by internal
delays, and the output capacitor characteristics. Figure 19 shows the hysteresis window voltage (VHI to VLO)
and the output voltage ripple (VMAX to VMIN). Since the output current from VREFB should be less than
500
A, the total divider resistance (R4 + R5) should be greater than 7 k. The hysteresis voltage should be
no greater than 60 mV so R5 will dominate the divider.
R4
R5
VHSYT
VREFB
Hysteresis Window = 2
× VR4
Figure 17. Hysteresis Divider Circuit
VO
VMAX
VMIN
VREF
VHI
VLO
t
Figure 18. Output Ripple
相關(guān)PDF資料
PDF描述
TPS56100PWPR 1.4 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO28
TPS56100PWPRG4 1.4 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO28
TPS56121DQPT SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PDSO22
TPS5615CPWP SWITCHING CONTROLLER, PDSO28
TPS5625CPWPR SWITCHING CONTROLLER, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS56100EVM-128 功能描述:HIGH-PERFORMANCE SYNCHRONOUS BUC RoHS:是 類別:編程器,開發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC(離線)SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC,步升 輸出及類型:1,非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969
TPS56100EVM-133 功能描述:HIGH-PERFORMANCE SYNCHRONOUS BUC RoHS:是 類別:編程器,開發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC(離線)SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC,步升 輸出及類型:1,非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969
TPS56100PWP 功能描述:DC/DC 開關(guān)控制器 5 Bit Programmable Sync Buck Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK
TPS56100PWPG4 功能描述:DC/DC 開關(guān)控制器 5 Bit Programmable Sync Buck Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK
TPS56100PWPR 功能描述:DC/DC 開關(guān)控制器 5B Programmable Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK