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參數(shù)資料
| 型號(hào)： | TEA1541 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | SMPS control IC with synchronization function |
| 中文描述： | 開關(guān)電源與同步功能控制IC |
| 文件頁數(shù)： | 3/19頁 |
| 文件大?。?/td> | 112K |
| 代理商： | TEA1541 |
2003 Aug 11
3
Philips Semiconductors
Product specification
SMPS control IC with
synchronization function
TEA1541
1
FEATURES
1.1
Distinctive features
Universal mains supply operation (70 to 276 V AC)
High-level of integration requiring few external
components
Synchronization with internal frequency divider
Frequency independent over-power protection.
1.2
Green features
Frequency reduction at low power standby for improved
system efficiency (<3 W)
Burst mode operation for very low power standby
levels (<1 W)
On-chip start-up current source.
1.3
Protection features
Safe restart mode for system fault conditions
Continuous mode protection using demagnetization
detection (zero switch-on current)
Accurate and adjustable overvoltage protection
Winding short-circuit protection
Undervoltage protection (foldback during overload)
Overtemperature protection
Adjustable low overcurrent protection (OCP) trip level
Soft (re)start
Mains voltage-dependent operation-enabling level.
2
GENERAL DESCRIPTION
The TEA1541 is a second generation GreenChip
TM(1)
Switched Mode Power Supply (SMPS) controller IC that
operates directly from the rectified universal mains.
A high-level of integration provides a cost-effective power
supply requiring only a few external components.
The TEA1541 controller enables easy design of highly
efficient, reliable switched mode power supplies.
Its internal oscillator can be synchronized to pulses from
an external signal source. External synchronizing pulses
whose frequency is above the SMPS switching frequency
range are divided by an internal divider.
Special built-in green functions ensure optimum efficiency
at all power levels. At low power (standby) levels, the
SMPS supply operates at a lower frequency. In burst
standby mode, power consumption can be reduced to less
than 1 W.
The proprietary EZ-HV SOI process allows start-up
directly from the rectified mains voltage, avoiding the need
for bleeder circuits, and also saves energy.
A low voltage BICMOS implements accurate control and
high speed protection functions.
(1) GreenChip is a trademark of Koninklijke Philips
Electronics N.V.
3
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TEA1541P
DIP8
plastic dual-in-line package; 8 leads (300 mil)
SOT97-1
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相關(guān)代理商/技術(shù)參數(shù) |
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| TEA1541P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:SMPS control IC with synchronization function |
| TEA1551T/N1,518 | 制造商:NXP Semiconductors 功能描述:OTHERS |
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