© 2009 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FAN6862R/L • Rev. 1.0.0

3

Marking Information

ABxTT

• •••

---

Figure 3. Top Mark

Pin Configuration

Figure 4. Pin Assignments

Pin Definitions

Pin # Name

Function

Description

1

GND

Ground

Ground

2

FB

Feedback

The FB pin provides the output voltage regulation signal. It provides feedback to

the internal PWM comparator for control of the duty cycle. This pin also provide for

stops and restarts.

3

RT

Temperature

Detection

An external NTC thermistor is connected from this pin to GND for over-temperature

protection. The impedance of the NTC decreases at high temperatures. Once the

voltage of the RT pin drops below a threshold, PWM output is disabled.

4

SENSE

Current

Sense

This pin senses the voltage across a resistor. When the voltage reaches the

internal threshold, PWM output is disabled. This activates over-current protection.

This pin also provides current amplitude information for current-mode control.

5

VDD

Power Supply Power supply

6

GATE

Driver Output The totem-pole output driver for driving the power MOSFET.

ABx:

ABA: FAN6862LTY

ABC: FAN6862RTY

TT:

Wafer Lot Code

:

Year Code

_ _ _

:

Week Code