Of Abbreviations - Philips DVDR880/001 Service Manual

Circuit-, IC Descriptions and List of Abbreviations
IC7313
p
GreenChipII SMPS control IC
FEATURES
Distinctive features
• Universal mains supply operation (70 to 276 V AC)
• High level of integration, giving a very low external
component count.
Green features
• Valley/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)
• Burst mode operation for very low standby levels (<1 W)
• 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
• Short winding protection
• Undervoltage protection (foldback during overload)
• Overtemperature protection
• Low and adjustable overcurrent protection trip level
• Soft (re)start
• Mains voltage-dependent operation-enabling level.
APPLICATIONS
Besides typical application areas, i.e. TV and Monitor
supplies, the device can be used in all applications that
demand an efficient and cost-effective solution up to
250 W.
2000 D 05
DVDR880-890 /0X1
1
2
TEA1507
3
4
Fig.1 Typical application.
2
9. EN 177
y p
TEA1507
8
7
6
5
MGU229