tea1533t NXP Semiconductors, tea1533t Datasheet - Page 2

• Manufacturer Part Number: tea1533t
• Description: Greenchiptmii Smps Control Ic
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
Distinctive features
Green features
Protection features
2002 Aug 23
Universal mains supply operation (70 to 276 V AC)
High level of integration, giving a very low external
component count.
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; P
no-load operation for a typical adapter application
On-chip start-up current source.
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.
GreenChip
TM
II SMPS control IC
i
<300 mW at
2
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.
Fig.1 Basic application diagram.
TEA1533T; TEA1533AT
1
2
3
4
5
6
7
TEA1533AT
TEA1533T
14
13
12
11
10
9
8
Product specification
MGU499