DataSheet.jp

TEA1833LTS の電気的特性と機能

TEA1833LTSのメーカーはNXP Semiconductorsです、この部品の機能は「GreenChip SMPS control IC」です。


製品の詳細 ( Datasheet PDF )

部品番号 TEA1833LTS
部品説明 GreenChip SMPS control IC
メーカ NXP Semiconductors
ロゴ NXP Semiconductors ロゴ 




このページの下部にプレビューとTEA1833LTSダウンロード(pdfファイル)リンクがあります。

Total 24 pages

No Preview Available !

TEA1833LTS Datasheet, TEA1833LTS PDF,ピン配置, 機能
TEA1833LTS
GreenChip SMPS control IC
Rev. 1 — 31 August 2015
Product data sheet
1. General description
The TEA1833LTS is a low-cost Switched Mode Power Supply (SMPS) controller IC
intended for flyback topologies. The TEA1833LTS operates in peak current and frequency
control mode. Frequency jitter has been implemented to reduce ElectroMagnetic
Interference (EMI). Slope compensation is integrated for Continuous Conduction Mode
(CCM) operation.
The TEA1833LTS IC features OverPower Protection (OPP). The controller accepts an
overpower situation up to 200 % for a limited amount of time.
Mains undervoltage protection (brownin/brownout), output OverVoltage Protection (OVP),
and OverTemperature Protection (OTP) can be implemented using a minimal number of
external components.
At low-power levels, the primary peak current is set to 22 % of the maximum peak current.
The switching frequency is reduced to limit the switching losses. The combination of fixed
frequency operation at high output power and frequency reduction at low output power
provides high efficiency over the total load range.
The TEA1833LTS makes the design of low-cost, highly efficient and reliable supplies
easier by requiring a minimum number of external components. The device is especially
suited for medium power applications.
2. Features and benefits
SMPS controller IC enabling low-cost applications
Large input voltage range (10.5 V to 36 V)
Integrated OverVoltage Protection (OVP) on the VCC pin
Accurate OverVoltage Protection (OVP) via the ISENSE pin
Dedicated burst mode, allowing a low VCC capacitor value
Very low supply current during start-up and restart (11 A typical)
Low supply current during normal operation (0.58 mA typical without load)
Adaptive internal overpower time-out
Overpower protection including high/low line compensation
Fixed switching frequency with frequency jitter to reduce EMI
Frequency reduction with fixed minimum peak current to maintain high efficiency at
low output power levels
Peak power operation up to 200 % by frequency increase and peak current increase
Slope compensation for CCM operation

1 Page





TEA1833LTS pdf, ピン配列
NXP Semiconductors
5. Block diagram
TEA1833LTS
GreenChip SMPS control IC
9&&
*1'
9
9
9&&VWDUW
6
9&&VWRS 5
4
UHVWDUW
5(67$57
&21752/
9FFVLQN
SRZHUGRZQ

P$
9
9
EXUVW
9
ODWFKUHVHW
9FFVLQN
ODWFK
 9
293DX[
RYHU
ORDG
GLVDEOH
26&3
PV
GHOD\
PV
2873876+257&,5&8,7
3527(&7,21
&2817 293
72
26&3 ,LQ
GULYHU
9FWUO ,SHDN
P9
VHW
įPD[
26&,//$7 25
IUHTXHQF\UHGXFWLRQ
26&3
9FWUO ,SHDN
6/23(
&203(16$7,21
7(03(5$785(
3527(&7,21
02'8/$7 ,21
$1$/2*
&21752/
273
9
N
 &75/
'5,9(5
,6(16(
'59

6
4
5
EXUVW
VHW
VWRS
įPD[
GULYHU
%/$1.
9
GLVDEOH /(%
26&3
UHVWDUW
9

293DX[
9VHQVH
2&3 VRIWVWDUW
9VHQVH
0,1,080
9FWUO ,SHDN VWRS
9VRIWVWDUW
29(532:(5
&203(16$7,21
,LQ
ODWFK
Fig 1. TEA1833LTS block diagram
įPD[SURW
&2817
72
įPD[
UHVWDUW
6
4
5
ODWFK
6
4
5
EURZQRXW
įPD[SURW
RYHUORDG
9&&VWDUW
SRZHUGRZQ
SURWORZ
273
SURWORZ
293
ODWFKUHVHW
SURWORZ &2817
72
FORFN
OLQ
EURZQRXW
0$,16
'(7(&7,21
9
 $

3527(&7
',*,7$/&21752/
DDD
TEA1833LTS
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 31 August 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
3 of 24


3Pages


TEA1833LTS 電子部品, 半導体
NXP Semiconductors
TEA1833LTS
GreenChip SMPS control IC
9EXV
UHFWLILHG
PDLQV
9&&
EURZQLQ
EURZQLQ
OHYHO
9VWDUWXS
9WK 89/2
9FODPS 9&&
3527(&7
9GHW 3527(&7
,6(16(
2XWSXW
YROWDJH
VRIWVWDUW
9WK VHQVH RSS
2XWSXW
ORDG
FKDUJLQJ9&&
FDSDFLWRU
VWDUWLQJ
FRQYHUWHU
QRUPDO
RSHUDWLRQ
233
WLPHRXW
233OHYHO
QRPLQDOORDG
ODWFKHGSURWHFWLRQ
DDD
Fig 4. Start-up sequence, normal operation and latched protection
When the voltage on pin VCC drops below the Vth(UVLO) level during normal operation, the
controller stops switching. The TEA1833LTS activates the latched protection and enters
power-down mode. This mechanism avoids that during a short circuit a restart occurs
when the supply voltage reaches Vth(UVLO) before the OPP time-out is reached (see
Section 7.7).
7.3 Supply management
All internal reference voltages are derived from a temperature compensated on-chip band
gap circuit. Internal reference currents are derived from a trimmed and temperature
compensated current reference circuit.
7.4 External overtemperature protection and mains detect input
(pin PROTECT)
The PROTECT input combines the functions of the mains voltage detection
(browin/brownout) and the external OverTemperature Protection (OTP). An internal clock
separates the period of measuring the mains voltage and the period of detecting external
OverTemperature Protection (OTP). In a typical application, the PROTECT pin is
connected to the mains via a resistor. It is connected to ground via a
Negative Temperature Coefficient (NTC) thermistor and a diode.
When measuring the mains voltage, the PROTECT pin is regulated to 0.25 V to prevent
that the external diode conducts current. The current into the PROTECT pin is measured
and stored. Once the measured current is above the brownin level, the system is allowed
TEA1833LTS
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 31 August 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
6 of 24

6 Page



ページ 合計 : 24 ページ
 
PDF
ダウンロード
[ TEA1833LTS データシート.PDF ]


データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。


共有リンク

Link :


部品番号部品説明メーカ
TEA1833LTS

GreenChip SMPS control IC

NXP Semiconductors
NXP Semiconductors


www.DataSheet.jp    |   2020   |  メール    |   最新    |   Sitemap