SSL21151T/1,118 NXP Semiconductors, SSL21151T/1,118 Datasheet - Page 5

• Manufacturer Part Number: SSL21151T/1,118
• Description: LED Lighting Drivers NON-DIM 19V 0.97mA NON DIMMABLE 5W
• Manufacturer: NXP Semiconductors

Specifications of SSL21151T/1,118

• Rohs: yes
• Input Voltage: 17 V
• Maximum Supply Current: 0.97 mA
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-7
• Minimum Operating Temperature: - 40 C

NXP Semiconductors
SSL2115X
Product data sheet
8.10 Output LED open-circuit protection
8.3 Leading-Edge Blanking (LEB)
8.4 dV/dt detection
8.5 Turn-off-time (t
8.6 Supply concepts VCC and UnderVoltage LockOut (UVLO)
8.7 Peak current detection
8.8 LED OverTemperature Protection (OTP)
8.9 LED Output Short-circuit Protection (OSP)
Where
The controller has a fixed LEB of 325 ns to avoid wrong detection of the primary peak
current.
The end of demagnetization is detected when the voltage on the sense pin is <50 mV.
A blanking time is applied at the beginning of t
demagnetization.
An integrated Junction gate Field-Effect Transistor (JFET), connected to the drain voltage,
provides the start-up current.
The IC starts switching when the voltage on pin VCC exceeds the V
start-up, an external supply is required, which an auxiliary winding connection can
provide. When the voltage on pin VCC drops below the V
switching and is reset.
Design the voltage of the auxiliary winding to ensure that the VCC supply voltage has a
U
The cycle-by-cycle peak drain current limit circuit uses the external source resistor
R
edge blanking time. The protection circuit limits the source voltage over resistor R
to V
An external temperature dependent resistor can be applied for LED over temperature
protection.
When the output short-circuit protection is activated, the IC enters shutdown mode. Only a
power-on reset (switching off the mains voltage) activates normal operation.
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
•
•
max
SOURCE
th(det)SOURCE
V
R
value of  29 V
ref(high)pk
SOURCE
to measure the primary peak current. The circuit is activated after the leading
is the value of the resistor connected to the SOURCE pin
is the peak high reference voltage
All information provided in this document is subject to legal disclaimers.
, thus limiting the primary peak current.
off
)
Rev. 2 — 7 June 2012
off
Low-cost non-dimmable LED driver IC
during t
blank
CC(UVLO)
time to observe the
level, the IC stops
CC(startup)
SSL2115X
© NXP B.V. 2012. All rights reserved.
level. After
SOURCE
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