SSL2101T/DB/FBCB120V,598 NXP Semiconductors, SSL2101T/DB/FBCB120V,598 Datasheet - Page 8

• Manufacturer Part Number: SSL2101T/DB/FBCB120V,598
• Description: BOARD EVAL LED DRIVER SS2101
• Manufacturer: NXP Semiconductors
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of SSL2101T/DB/FBCB120V,598

• Current - Output / Channel: 400 mA ~ 800 mA
• Outputs And Type: 1, Isolated
• Voltage - Output: 9 ~ 23 V
• Features: Dimmable, TRIAC Dimmable
• Voltage - Input: 120VAC
• Utilized Ic / Part: SSL2101
• Input Voltage: 120 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: 568-4812

NXP Semiconductors
7. Functional description
UM10341
User manual
Fig 5.
BRIGHTNESS
PWMLIMIT
Block diagram SSL2101
GND
RC2
V
RC
CC
4, 5,13,
14, 15
8
6
7
9
3
Remark: All components referred to in the text can be located on
schematic
The IC controls and drives the flyback converter part, and ensures proper dimmer
operation. Several high voltage switches are integrated in the IC. One of these controls
the flyback input power, and is situated between the DRAIN and SOURCE pins. When the
switch closes, a current stores energy in the transformer TX1. The switch is opened when
the duty factor has exceeded the level set by the PWMLIMIT pin, with a maximum of
75 %, or when the voltage on the SOURCE pin exceeds 0.5 V. Following this, the energy
stored in the transformer is discharged to D6 and the output capacitors C5 and C6, and
finally absorbed by the load. The converter frequency is set with an internal oscillator, the
timing of which is controlled by external RC components on pins RC and RC2. By varying
the BRIGHTNESS pin voltage, the oscillator frequency can be modulated to an upper and
lower value. The ratio between R15 and R16 sets the frequency variation.
OSCILLATOR
CIRCUIT
LIMIT
PWM
FRC
ISENSE
Stop
Low freq
10
diagram”.
BLEEDER
SBLEED
1
All information provided in this document is subject to legal disclaimers.
POWER - UP
SHUTDOWN
2
THERMAL
WBLEED
RESET
Rev. 2 — 3 February 2011
SUPPLY
Short-winding protection
PROTECTION
Overcurrent
LOGIC
LOGIC
SSL2101 12 W mains dimmable LED driver
VALLEY
Blank
100 mV
0.5 V
1.5 V
Figure 8 “Board
UM10341
© NXP B.V. 2011. All rights reserved.
16
11
12
DRAIN
AUX
SOURCE
019aaa816
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