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): 15/27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
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
hysteresis voltage (continued)
The upper divider resistor, R4, is calculated using:
R4
+
Hysteresis Window
2
(VREFB
* Hysteresis Window)
R5
V
HYST
(%)
(2
100)
R5
Where
Hysteresis Window = the desired peak-to-peak hysteresis voltage.
VREFB = selected reference voltage.
VHYST (%) = [(Hysteresis Window)/VREFB] * 100 < VO(Ripple)(P-P) (%)
current limit
Current limit can be implemented using the on-resistance of the upper FETs as the sensing element. Select R7:
R7
V
OCP
I
Bias(OCP)
0.1 V
(100
100 nA)
≤ 10 k (A recommended value is 1 k)
The IOUT signal is used to drive the current limit divider. The voltage at IOUT at the output current trip point will
be:
V
IOUT(Trip) +
2
R
DS(ON)
TF
NumFETs
I
O(Trip)
Where
NumFETS = Number of upper FETS in Parallel.
TF = RDS(ON) temperature correction factor.
IO(Trip) = Desired output current trip level (A).
Calculate R6 using:
R6
+
V
IOUT(Trip)
0.1 V
* 1
R7
Note that since RDS(ON) of MOSFETs can vary from lot to lot and with temperature, tight current-limit control (less
than 1.5 x IO) using this method is not practical. If tight control is required, an external current-sense resistor
in series with the drain of the upper FET can be used with HISENSE and LOSENSE connected across the
resistor.
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