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參數(shù)資料
| 型號(hào)： | TL499AY |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | WIDE-RANGE POWER-SUPPLY CONTROLLERS |
| 中文描述： | 寬范圍電源控制器 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 114K |
| 代理商： | TL499AY |
TL499A
WIDE-RANGE POWER-SUPPLY CONTROLLERS
SLVS029F – JANUARY 1984 – REVISED MAY 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Internal Series-Pass and Step-Up Switching
Regulator
Output Adjustable From 2.9 V to 30 V
1-V to 10-V Input for Switching Regulator
4.5-V to 32-V Input for Series Regulator
Externally Controlled Switching Current
No External Rectifier Required
description
The TL499A is an integrated circuit designed to provide a wide range of adjustable regulated supply voltages.
The regulated output voltage can be varied from 2.9 V to 30 V by adjusting two external resistors. When the
TL499A is ac-coupled to line power through a step-down transformer, it operates as a series dc voltage regulator
to maintain the regulated output voltage. With the addition of a battery from 1.1 V to 10 V, an inductor, a filter
capacitor, and two resistors, the TL499A operates as a step-up switching regulator during an ac-line failure.
The adjustable regulated output voltage makes the TL499A useful for a wide range of applications. Providing
backup power during an ac-line failure makes the TL499A extremely useful in microprocessor memory
applications.
The TL499AC is characterized for operation from –20
°
C to 85
°
C.
AVAILABLE OPTIONS
TA
PLASTIC DIP
(P)
PLASTIC
SMALL-OUTLINE
(PS)
CHIP FORM
(Y)
–20
°
C to 85
°
C
The PS package is available taped and reeled. Add the suffix R to device
type (e.g., TL499ACPSR). Chip forms are tested at 25
°
C.
TL499ACP
TL499ACPS
TL499AY
Copyright
2000, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1
2
3
4
8
7
6
5
SERIES IN1
REF
SW REG IN2
SW CURRENT CTRL
OUTPUT
GND (PWR)
SW IN
GND
P OR PS PACKAGE
(TOP VIEW)
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|---|---|
| TL49P000000 | 功能描述:撥動(dòng)開關(guān) DPDT 0.4VA 20VAC/DC 5.3mm On-Off-On RoHS:否 制造商:C&K Components 觸點(diǎn)形式:DPDT 開關(guān)功能:ON - ON - ON 電流額定值: 電壓額定值 AC:20 V 電壓額定值 DC:20 V 功率額定值:0.4 VA 端接類型:V-Bracket 安裝風(fēng)格: 端子密封:Epoxy 觸點(diǎn)電鍍:Gold 照明:Not Illuminated |
| TL49P000200 | 功能描述:撥動(dòng)開關(guān) DPDT 0.4VA 20VAC/DC 9.4mm On-Off-On RoHS:否 制造商:C&K Components 觸點(diǎn)形式:DPDT 開關(guān)功能:ON - ON - ON 電流額定值: 電壓額定值 AC:20 V 電壓額定值 DC:20 V 功率額定值:0.4 VA 端接類型:V-Bracket 安裝風(fēng)格: 端子密封:Epoxy 觸點(diǎn)電鍍:Gold 照明:Not Illuminated |
| TL49P0050 | 制造商:APEM 功能描述:SWITCH PCB DPDT CTR OFF 制造商:APEM 功能描述:SWITCH, PCB, DPDT, CTR OFF 制造商:APEM 功能描述:SWITCH, PCB, DPDT, CTR OFF; Contact Configuration:DPDT; Switch Operation:On-Off-On; Contact Voltage AC Nom:20V; Contact Voltage DC Nom:20V; Switch Terminals:Solder; Actuator Style:Short Lever; Switch Mounting:Through Hole; SVHC:No ;RoHS Compliant: Yes 制造商:APEM 功能描述:DPDT on-off-on washable toggle switch |
| TL49P0050 | 制造商:APEM 功能描述:SWITCH PCB DPDT CTR OFF |
| TL49P080400 | 功能描述:撥動(dòng)開關(guān) DPDT 0.4VA 20VAC/DC 7.4mm On-Off-On RoHS:否 制造商:C&K Components 觸點(diǎn)形式:DPDT 開關(guān)功能:ON - ON - ON 電流額定值: 電壓額定值 AC:20 V 電壓額定值 DC:20 V 功率額定值:0.4 VA 端接類型:V-Bracket 安裝風(fēng)格: 端子密封:Epoxy 觸點(diǎn)電鍍:Gold 照明:Not Illuminated |
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