SSL2102T/DB/FLYB230V,598 NXP Semiconductors, SSL2102T/DB/FLYB230V,598 Datasheet - Page 8

• Manufacturer Part Number: SSL2102T/DB/FLYB230V,598
• Description: KIT SSL2102 DESIGNER 230V
• Manufacturer: NXP Semiconductors

Specifications of SSL2102T/DB/FLYB230V,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: 568-4930

NXP Semiconductors
7. Functional description
UM10386
User manual
Fig 5.
BRIGHTNESS
PWMLIMIT
Block diagram SSL2102
GND
RC2
V
RC
CC
2, 3, 6, 7, 14,
16, 17, 18, 19
10
8
9
11
5
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, energy is stored in the transformer TX1. The switch is opened when the
duty factor has exceeded the level set by the PWMLIMIT pin, by 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
12
diagram”.
BLEEDER
SBLEED WBLEED
1
All information provided in this document is subject to legal disclaimers.
POWER - UP
SHUTDOWN
THERMAL
RESET
4
Rev. 1 — 1 February 2011
SUPPLY
Short-winding protection
PROTECTION
Overcurrent
SSL2102 19 W to 22 W mains dimmable LED driver
LOGIC
LOGIC
VALLEY
Blank
100 mV
0.5 V
1.5 V
Figure 8 “Board
UM10386
© NXP B.V. 2011. All rights reserved.
20
13
15
019aab394
DRAIN
AUX
SOURCE
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