ssl1750 NXP Semiconductors, ssl1750 Datasheet - Page 2

• Manufacturer Part Number: ssl1750
• Description: Smps Control Ic For Led Drivers
• Manufacturer: NXP Semiconductors

NXP Semiconductors
3. Applications
SSL1750_1
Product data sheet
2.4 Flyback green features
2.5 Protection features
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The device can be used in all SSL applications that require an efficient and cost-effective
LED power supply solution up to 250 W.
Key applications for the SSL1750 are:
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Frequency limitation to reduce switching losses
Burst mode operation if a low load is detected at the flyback output (patented)
Valley switching for minimum switching losses (patented)
Frequency reduction with fixed minimum peak current at low power operation to
maintain high efficiency at low output power levels
Safe restart mode for system fault conditions
Continuous mode protection by means of demagnetization detection for both
converters (patented)
Undervoltage protection (foldback during overload)
Accurate OverVoltage Protection (OVP) for both converters (adjustable for flyback
converter)
Open control loop protection for both converters
IC overtemperature protection
Low and adjustable OverCurrent Protection (OCP) trip level for both converters
Soft-(re)start for both converters
Soft-stop PFC to minimize audible noise
Mains undervoltage protection / brownout protection
General purpose input for latched protection, e.g. to be used for system
OverTemperature Protection (OTP)
Indoor LED applications (> 25 W):
– Spot lights
– Down lights
– Other SSL consumer/industrial fixtures
Outdoor LED applications (> 25 W):
– Street lighting
– Area lighting (e.g. car parking)
– Tunnel lighting
Rev. 01 — 15 September 2008
SMPS control IC for LED drivers
SSL1750
© NXP B.V. 2008. All rights reserved.
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