NCL30083BDMR2G ON Semiconductor, NCL30083BDMR2G Datasheet - Page 21

• Manufacturer Part Number: NCL30083BDMR2G
• Description: LED Lighting Drivers Step-Dimm Quasi-Res I-Mode Cntlr
• Manufacturer: ON Semiconductor

Specifications of NCL30083BDMR2G

• Rohs: yes
• Input Voltage: 18 V
• Operating Frequency: 65 kHz
• Maximum Supply Current: 1.2 mA
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: Micro-8
• Minimum Operating Temperature: - 40 C

not allowed to start pulsing for at least 180 ms in order to
allow the SD pin voltage to reach its nominal value if a
and inject current inside the internal clamp resistor R
thus causing the pin SD voltage to increase. When this
VCC
At startup, when V
In case of over voltage, the Zener diode starts to conduct
NTC
Dz
SD
Vdd
I
OTP(REF)
Rclamp
Vclamp
CC
reaches V
V
V
OVP
OTP
Figure 58. Thermal Fold−back and OVP/OTP Circuitry
CC(on)
OTP_Timer end
0.5 V if OTP low
0.7 V if OTP high
−
−
+
+
, the controller is
http://onsemi.com
clamp
V
TF
21
noise delay
noise delay
filtering capacitor is connected to the SD pin. This is to avoid
flickering of the LED light in case of over temperature.
voltage reaches the OVP threshold (2.5 V typ.), the
controller shuts−down and waits for at least 4 seconds before
restarting switching.
OTP
OVP
4−s Timer
VCCreset
(OTP latched for version A)
R
R
S
S
Q
Q
Q
Q
Latch
OFF