ICE2QS03G

quasi-resonant PWM controller, 500 V, 3 mA, 100mW, DSO8

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Price:: US $0.15~2.40 / piece [Get Latest Price]

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	US $0.15~2.40

PartNumber:: ICE2QS03G

Brand:: eupec GmbH - infineon | Pack: SOP | D/C: 12+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2012-10-09

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Part Number:ICE2QS03G
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Product Summary

The ICE2QS03G is a quasi-resonant PWM controller optimized for off-line switch power supply applications such as LCD TV, CRT TV and notebook adapter. The digital frequency reduction with decreasing load enables a quasi-resonant operation till very low load. As a result, the overall system efficiency is significantly improved compared to other conventional solutions. The active burst mode operation enables an ultra-low power consumption at standby mode with small and controllable output voltage ripple. Based on the BiCMOS technology, the product has a wide operation range (up to 26V) of IC power supply and lower power consumption. The numerous protection functions give a full protection of the power supply system in failure situations. All of these make the ICE2QS03G an outstanding controller for quasi-resonant flyback converter in the market.

Parametrics

ICE2QS03G absolute maximum ratings: (1)HV Voltage VHV: 500 V; (2)VCC Supply Voltage VVCC: -0.3 to 27 V; (3)FB Voltage VFB: -0.3 to 5.0 V; (4)ZC Voltage VZC: -0.3 to 5.0 V; (5)CS Voltage VCS: -0.3 to 5.0 V; (6)GATE Voltage VOUT: -0.3 to 27 V; (7)Maximum current out from ZC pin IZCMAX: 3 mA; (8)Junction Temperature Tj: -40 to 150 ℃; (9)Storage Temperature TS: -55 to 150 ℃.

Features

ICE2QS03G features: (1)Quasiresonant operation till very low load; (2)Active burst mode operation at light/no load for low standby input power (< 100mW); (3)Digital frequency reduction with decreasing load; (4)Power cell for VCC pre-charging with constant current; (5)Built-in digital soft-start; (6)Foldback correction and cycle-by-cycle peak current limitation; (7)Auto restart mode for VCC Overvoltage protection; (8)Auto restart mode for VCC Undervoltage protection; (9)Auto restart mode for openloop/overload protection; (10)Latch-off mode for adjustable output overvoltage protection; (11)Latch-off mode for Short-winding protection.