LV5026MC-AH Datasheet, PDF (5/16 Pages) ON Semiconductor – LED Driver IC

Pin Functions
Pin No.
Pin name
1 RT
2 REF_OUT
3 REF_IN
4 CS
LV5026MC
Pin function
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
Built-in 3V Regulate out Pin.
If this function isn’t used, please connect to nothing.
Equivalent circuit
VREF-OUT
(3V typ)
1kΩ
RT
GND
VIN
VREF-OUT
(3V typ)
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.
CS
GND
VIN
REF_IN
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
CS
GND
VIN
REF_IN
5 PWM_D
PWM Dimming pin.L or open: normal operation,
H: Stop operation.
6 GND
7 OUT
8
VIN
9 OUT2
GND pin.
Driving the external FET Gate Pin.
Power supply pin. Operation
: VIN > UVLOON Stop: VIN < UVLOOFF
Switching Stop : VIN > VINOVP
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.
VIN
PWM_D
GND
GND
200kΩ
700kΩ
VIN
OUT
GND
VIN
1kΩ
OUT2
10 ACS
ACS pin senses AC Voltage.
If this function isn’t used, please connect GND.
GND
VIN
ACS
GND
No.A2042-5/16