SP6853 Datasheet, PDF (3/13 Pages) SYNC POWER Crop. – Green-Mode PWM Controller

SP6853
Green-Mode PWM Controller
PIN DESCRIPTION
SP6853D8TG
Pin Symbol
Description
1
OUT Gate driver output to drive the external MOSFET
2
VCC Supply Voltage in
3
NC Unconnected pin
4
CS
Current sense. This pin senses the voltage across a resistor, to control PWM output. This pin
also provides current amplitude information for current-mode control.
5
RT This current is used to charge an internal capacitor, to determine the switching frequency.
6
NC Unconnected pin
7
COMP
Voltage feedback. The pin provides the output voltage regulation signal., it provides feedback
to the internal PWM comparator, so that the PWM comparator can control the duty cycle.
8
GND Ground
SP6853S26RG
Pin Symbol
Description
1
GND Ground
2
COMP
Voltage feedback. The pin provides the output voltage regulation signal., it provides feedback
to the internal PWM comparator, so that the PWM comparator can control the duty cycle
3
RT This current is used to charge an internal capacitor, to determine the switching frequency.
4
CS
Current sense. This pin senses the voltage across a resistor, to control PWM output. This pin
also provides current amplitude information for current-mode control
5
VCC Supply Voltage in
6
OUT Gate driver output to drive the external MOSFET
BLOCK DIAGRAM
2008/08/10 Ver.1
Page 3