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參數資料
| 型號： | TEA2019 |
| 廠商： | 意法半導體 |
| 英文描述： | CURRENT MODE SWITCHING POWER SUPPLY CONTROL CIRCUIT |
| 中文描述： | 電流模式開關電源控制電路 |
| 文件頁數： | 1/7頁 |
| 文件大?。?/td> | 80K |
| 代理商： | TEA2019 |
TEA2019
CURRENT MODE SWITCHING
POWER SUPPLY CONTROL CIRCUIT
August 1992
.
DIRECT
SWITCHING TRANSISTOR
.
POSITIVE AND NEGATIVE OUTPUT CUR-
RENTS UP TO 0.5A
.
CURRENT LIMITATION
.
TRANSFORMER DEMAGNETIZATION AND
POWER TRANSISTOR SATURATION SENS-
.
PROPORTIONALBASECURRENT DRIVING
.
LOW STANDBY CURRENT BEFORE START-
ING (1.6mA)
.
SYNCHRONIZATION CAPABILITY WITH IN-
TERNAL PLL
.
THERMAL PROTECTION
DRIVE
OF
THE
EXTERNAL
ING
.
FULL OVERLOAD AND
PROTECTION
SHORT-CIRCUIT
DIP 14
(Plastic package)
ORDER CODE :
TEA2019
DESCRIPTION
The TEA2019is an 14-pin DIP low cost integrated
circuit designed for the control of switch mode
power supplies.It has the samebasicfunctionsas
the TEA2018Abut with synchronization capability
by internal PLL. It is particularly suitable for appli-
cations where oscillator synchronization is re-
quired.
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUTPUT
AUXILIARY OUTPUT SUPPLY
POSITIVE SUPPLY VOLTAGE
SATURATION SENSING
DEMAGNETIZATION SENSING
ERROR AMPLIFIER NON-INVERTING INPUT
SYNCHRONIZATIONINPUT
NEGATIVE SUPPLY (OUTPUTSTAGE)
SUBSTRATE
I
SAMPLE (NEGATIVE)
GROUND
OSCILLATOR CAPACITOR
OSCILLATOR REFERENCE CURRENT
C
PLL OUTPUT
2
PINCONNECTIONS
Due to its current mode regulation, the TEA2019
.
High stability regulationloop.
.
Automatic input voltage feed-forward in dis-
continuousmode fly-back.
.
Automaticpulse-by-pulse current limitation.
Typical applications: Video Display Units, TV sets,
typewriters, micro-computers and industrial appli-
cations. For more details, see application
noteAN406/0591.
1/7
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| TEA2025D | 功能描述:音頻放大器 Stereo Audio Amp RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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