ACE715C

High Efficiency 1.2MHz 30V Boost LED Driver

VER 1.1

2

Absolute Maximum Ratings

Parameter

Max

IN, EN Pin Voltage

-0.3V to 6V

SW Pin Voltage

-0.3V to 30V

All Other Pin Voltage

-0.3V to 6V

Junction Temperature (TJ)

150°C

Ambient Temperature (TA)

-40°C to 85°C

Power Dissipation

SOT23-6

600mW

Thermal Resistance (θ

250

Thermal Resistance (θ

130

Storage Temperature (Ts)

-65°C to 150°C

Lead Temperature & Time

260°C, 10Sec

Packaging Type

SOT-23-6

6

5

4

1

2

3

Pin No.

Symbol

Description

1

LX

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.

2

GND

Ground.

3

FB

Feedback Input. The FB voltage is 0.25V. Connect a resistor divider to FB.

4

EN

Chip enable, but a PWM signal with various duty cycle can directly sent to EN pin

to achieve the backlight dimming.

5

OVP

Over Voltage Input. OV measures the output voltage for open circuit protection.

Connect OV to the output at the top of the LED string.

6

IN

Power Supply. Must be locally bypassed.