A7630
DC-DC CONVERTER BOOST (STEP-UP)
1.2MHz, 28V STEP-UP LED DRIVER
AiT Semiconductor Inc.
www.ait-ic.com
PIN DESCRIPTION
Top View
Pin #
1
Symbol
LX
Function
Power Switch Output. LX is the drain of the internal MOSFET switch. Connect the
power inductor and output rectifier to LX. LX can swing between GND and 30V.
Ground.
2
3
GND
FB
Feedback Input. The FB voltage is 0.25V. Connect a resistor divider to FB.
Chip enable, but a PWM signal with various duty cycle can directly sent to EN pin
to achieve the backlight dimming.
4
EN
Over Voltage Input. OV measures the output voltage for open circuit protection.
Connect OV to the output at the top of the LED string.
Power Supply. Must be locally bypassed.
5
6
OVP
IN
REV1.0
- FEB 2017 RELEASED -
- 2 -
AITSEMI [ AiT Semiconductor ]
