SP6850
Green-Mode PWM Controller
PIN DESCRIPTION
SP6850D8TG
Pin
Symbol
Description
1
OUT Gate driver output to drive the external MOSFET
2
VCC Supply Voltage in
3
NC
Unconnected pin
Current sense. This pin senses the voltage across a resistor, to control PWM output. This pin
4
CS
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
Voltage feedback. The pin provides the output voltage regulation signal., it provides feedback
7
COMP
to the internal PWM comparator, so that the PWM comparator can control the duty cycle.
8
GND Ground
SP6850S26RG
Pin
Symbol
Description
1
GND Ground
Voltage feedback. The pin provides the output voltage regulation signal., it provides feedback
2
COMP
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.
Current sense. This pin senses the voltage across a resistor, to control PWM output. This pin
4
CS
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
2007/04/10
Ver.3
Page 3
SYNC-POWER [ SYNC POWER CROP. ]
