SSL21101T/1,518 NXP Semiconductors, SSL21101T/1,518 Datasheet - Page 9

• Manufacturer Part Number: SSL21101T/1,518
• Description: LED Lighting Drivers SMPS 25.5V 1.4mA
• Manufacturer: NXP Semiconductors

Specifications of SSL21101T/1,518

• Rohs: yes
• Input Voltage: 13 V to 25.5 V
• Maximum Supply Current: 1.4 mA
• Mounting Style: SMD/SMT
• Package / Case: SO-14
• Factory Pack Quantity: 2500

NXP Semiconductors
SSL21101T
Product data sheet
8.10 Short-winding protection
8.12 Output LED open circuit protection
8.13 Limitations
8.11 Output LED short circuit protection
The short-winding protection circuit is activated after the leading edge blanking time. If the
source voltage exceeds the short-winding protection threshold voltage (V
the IC stops switching. Only a power-on reset restarts normal operation (switching off the
mains voltage).
When during one rectified mains waveform the following conditions are true, the output
short detection is activated and the IC enters Shutdown mode.
If an open circuit occurs on the LEDs, the output voltage increases at each cycle of the
AC/DC converter. Energy is no longer transferred to the LEDs. The energy accumulated
at the primary side is transferred to the supply of the IC via the auxiliary winding. The IC
enters Shutdown mode when V
restarts normal operation (switching off the mains voltage).
The application must stay in DCM mode for normal functionality. During normal switching,
the primary stroke switching time must stay under t
current.
When the application is working outside the defined main voltage range, meaning below
the minimum mains voltage, the application can work in BCM mode.
of the effects that can be seen in this case.
•
•
2t
1t
sw
sw
> t
< t
prot(sc)LED
on(high)
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 7 June 2012
CC
reaches the V
prot(VCC)
on(high)
GreenChip driver for LED lighting
value. Only a power-on reset
to keep an accurate LED
SSL21101T
Figure 5
© NXP B.V. 2012. All rights reserved.
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