NCL30083BDMR2G ON Semiconductor, NCL30083BDMR2G Datasheet - Page 19

• 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

Cycle−by−Cycle Current Limit
threshold V
switching cycle (Figure 56).
When the current sense voltage exceeds the internal
800m
600m
400m
200m
800m
600m
400m
200m
16.0
12.0
8.00
4.00
0
0
0
ILIM
, the MOSFET is turned off for the rest of the
604u
Figure 55. Startup Simulation Showing the Natural Soft−start
1.47m
http://onsemi.com
time in seconds
2.34m
19
Winding and Output Diode Short−Circuit Protection
another comparator with a reduced LEB (t
threshold (1.5 V typical) is able to sense winding
short−circuit and immediately stops the DRV pulses. The
controller goes into auto−recovery mode in version B.
DRV pulses stop and VCC ramps up and down. The circuit
un−latches when VCC pin voltage drops below V
threshold.
In parallel with the cycle−by−cycle sensing of the CS pin,
In version A, the controller is latched. In latch mode, the
3.21m
4.07m
BCS
) and a higher
1
2
4
3
V Control
V CS
V out
I out
CC(reset)