SSL2102T/DB/FLYB120V,598 NXP Semiconductors, SSL2102T/DB/FLYB120V,598 Datasheet - Page 8

• Manufacturer Part Number: SSL2102T/DB/FLYB120V,598
• Description: KIT SSL2102 DESIGNER 120V
• Manufacturer: NXP Semiconductors

Specifications of SSL2102T/DB/FLYB120V,598

• Current - Output / Channel: 400mA ~ 1.05A
• Outputs And Type: 1, Isolated
• Voltage - Output: 9 ~ 23 V
• Features: Dimmable
• Voltage - Input: 85 ~ 276VAC
• Utilized Ic / Part: SSL2102
• Duty Cycle (max): 75 %
• Mounting Style: SMD/SMT
• Switching Frequency: 100 KHz
• Operating Supply Voltage: 8.5 V to 40 V
• Supply Current: 1.7 A
• Maximum Operating Temperature: + 100 C
• Minimum Operating Temperature: - 40 C
• Output Power: 1.6 W
• Package / Case: SOIC-20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-4931

NXP Semiconductors
SSL2102_1
Product data sheet
As soon as the oscillator voltage is high again and the secondary stroke has ended, the
circuit waits for a low drain voltage before starting a new primary stroke.
Figure 6
secondary stroke and the RC voltage.
The primary stroke starts some time before the actual valley at low ringing frequencies,
and some time after the actual valley at high ringing frequencies.
Figure 7
80 V. This voltage is the output voltage transferred to the primary side of the transformer
with the factor N (determined by the turns ratio of the transformer). It shows that the
system switches exactly at minimum drain voltage for ringing frequencies of 480 kHz, thus
reducing the switch-on losses to a minimum. At 200 kHz, the next primary stroke is
started at 33 before the valley. The switch-on losses are still reduced significantly.
Fig 6.
shows the drain voltage together with the valley signal, the signal indicating the
shows a typical curve for a reflected output voltage N at an output voltage of
A: Start of new cycle with valley switching.
B: Start of new cycle in a classical PWM system.
Signals for valley switching, flyback configuration
secondary
oscillator
stroke
valley
drain
RC
Rev. 01 — 29 June 2009
primary
stroke
regulation level
secondary
stroke
SMPS IC for dimmable LED lighting
secondary
ringing
B
014aaa572
A
SSL2102
© NXP B.V. 2009. All rights reserved.
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