SSL2101T/DB/FBCB230V,598 NXP Semiconductors, SSL2101T/DB/FBCB230V,598 Datasheet - Page 6

• Manufacturer Part Number: SSL2101T/DB/FBCB230V,598
• Description: BOARD EVAL LED DRIVER SS2101
• Manufacturer: NXP Semiconductors
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of SSL2101T/DB/FBCB230V,598

• Current - Output / Channel: 400 mA ~ 800 mA
• Outputs And Type: 1, Isolated
• Voltage - Output: 9 ~ 23 V
• Features: Dimmable, TRIAC Dimmable
• Voltage - Input: 230VAC
• Utilized Ic / Part: SSL2101
• Input Voltage: 230 V
• Board Size: 103 mm x 50 mm x 20 mm
• Maximum Operating Temperature: + 100 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 8.5 V to 40 V
• Product: Power Management Modules
• Dimensions: 103 mm x 50 mm x 20 mm
• For Use With/related Products: SSL2101T
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-4811

NXP Semiconductors
SSL2101_4
Product data sheet
8.3 Duty factor control
A typical RC waveform is given in
the BRIGHTNESS pin.
To ensure that the capacitor can be charged within the charge time, the value of the
oscillator capacitor should be limited to 1 nF. Due to leakage current, the value of the
resistor connected between the RC pin and the ground should be limited to a maximum of
220 k .
The duty factor is controlled by an internally regulated voltage and the oscillator signal on
pin RC. The internal regulation voltage is set by the voltage on the PWMLIMIT pin.
A low PWMLIMIT voltage will results in a low on-time for the internal power switch. The
minimum duty factor of the switched mode power supply can be set to 0 %. The maximum
duty factor is set to 75 %.
Fig 3.
Fig 4.
BRIGHTNESS
rc_threshhold
Brightness control block
Brightness timing waveform.
Voltage
75 mV
(mV)
5 V
Rev. 04 — 28 August 2009
24 A
V
V
Figure
rc_threshold
RC voltage
4. The RC switch-over threshold is controlled by
OSCILLATOR
STARplug
Comparator
SMPS IC for dimmable LED lighting
time
RC
RC2
10 k
R2
SSL2101
© NXP B.V. 2009. All rights reserved.
014aaa582
014aaa574
C1
330 pF
R1
220 k
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