FAN6862WLTY Datasheet, PDF (3/16 Pages) Fairchild Semiconductor – Highly Integrated Green-Mode PWM Controller

Marking Information
Pin Configuration
Axx: ABY: FAN6862WTY
ABZ: FAN6862WRTY
ACA: FAN6862WLTY
TT: Wafer Lot Code
: Year Code
_ _ _: Week Code
Figure 3. Top Mark
Figure 4. Pin Configuration
Pin Definitions
Pin #
1
2
3
4
5
6
Name Function
Description
GND
Ground Ground
The FB pin provides the output voltage regulation signal. It provides feedback to
FB
Feedback
the internal PWM comparator, so the PWM comparator can control the duty
cycle. This pin also provides over-current protection. IF V_FB is higher than the
trigger level and persists at that level, the controller stops and restarts.
RT
Temperature
Detection
An external NTC thermistor is connected from this pin to the GND pin. The
impedance of the NTC decreases at high temperatures. If the voltage of the RT
pin drops below the threshold, PWM output is disabled.
This pin senses the voltage across a resistor. When the voltage reaches the
SENSE
Current Sense
internal threshold, PWM output is disabled and this activates over-current
protection. This pin also provides current amplitude information for Current
Mode control.
VDD Power Supply Power supply
GATE Driver Output The totem-pole output driver for driving the power MOSFET
© 2012 Fairchild Semiconductor Corporation
FAN6862W • Rev. 1.0.0
3
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