Datasheet

LV5026MC
No.A2042-5/16
Pin Functions
Pin No. Pin name Pin function Equivalent circuit
1 RT Switching frequency selection pin.
L or Open : 50kHz switching,
H: 70 kHz switching.
In case of 70kHz,connect RT pin to REFOUT pin.
on time
VREF-OUT
(3V typ)
RT
GND
1kΩ
2 REF_OUT Built-in 3V Regulate out Pin.
If this function isn’t used, please connect to nothing.
V
IN
VREF-OUT
(3V typ)
GND
3 REF_IN External LED current Limit Setting pin. If less than
VREF (0.61V) voltage is input, Peak current value is
used at the input voltage. If more than REF_IN voltage
is input, it is done at VREF voltage. If this function isn’t
used, please connect nothing.
V
IN
REF_INCS
GND
4 CS LED current sensing in. If this terminal voltage
exceeds VREF (Or REF_IN), external FET is OFF.
And if the voltage of the terminal exceeds 1.9V,
LV5026MC turns to latch-off mod
V
IN
REF_INCS
GND
5 PWM_D PWM Dimming pin.L or open: normal operation,
H: Stop operation.
V
IN
200kΩ
700kΩ
PWM_D
GND
6 GND GND pin.
7 OUT Driving the external FET Gate Pin.
8 V
IN
Power supply pin. Operation
: V
IN
> UVLOON Stop: V
IN
< UVLOOFF
Switching Stop : V
IN
> V
IN
OVP
V
IN
OUT
GND
9 OUT2 This pin drive the FET which is stabilized the TRIAC
dimming application.
If ACS is less than 3V, OUT2 turn High voltage.
If this function isn’t used, please connect nothing.
1kΩ
V
IN
OUT2
GND
10 ACS ACS pin senses AC Voltage.
If this function isn’t used, please connect GND.
V
IN
ACS
GND