TEA1533T データシートの表示（PDF） - Philips Electronics
部品番号
コンポーネント説明
メーカー
TEA1533T Datasheet PDF : 24 Pages
| |||
Philips Semiconductors
GreenChipTMII SMPS control IC
Product specification
TEA1533T; TEA1533AT
FEATURES
Distinctive features
• Universal mains supply operation (70 to 276 V AC)
• High level of integration, giving a very low external
component count.
APPLICATIONS
Besides typical application areas, i.e. adapters and
chargers, the device can be used in TV and monitor
supplies and all applications that demand an efficient and
cost-effective solution up to 250 W.
Green features
• Valley or zero voltage switching for minimum switching
losses
• Efficient quasi-resonant operation at high power levels
• Frequency reduction at low power standby for improved
system efficiency (<3 W)
• Cycle skipping mode at very low loads; Pi <300 mW at
no-load operation for a typical adapter application
• On-chip start-up current source.
Protection features
• Safe restart mode for system fault conditions
• Continuous mode protection by means of
demagnetization detection (zero switch-on current)
• Accurate and adjustable overvoltage protection (latched
in TEA1533T, safe restart in TEA1533AT)
• Short winding protection
• Undervoltage protection (foldback during overload)
• Overtemperature protection (latched in TEA1533T, safe
restart in TEA1533AT)
• Low and adjustable overcurrent protection trip level
• Soft (re)start
• Mains voltage-dependent operation enabling level.
1
14
2
13
3
12
4 TEA1533T 11
TEA1533AT
5
10
6
9
7
8
MGU499
Fig.1 Basic application diagram.
2002 Aug 23
2
Share Link: 