RT8802A 데이터 시트보기 (PDF) - Richtek Technology
부품명
상세내역
제조사
RT8802A Datasheet PDF : 29 Pages
| |||
RT8802A
ISP1 (Pin 25), ISP2 (Pin 24), ISP3 (Pin 23),
ISP4 (Pin 22), ISP5 (Pin 21)
Current sense positive input pins for individual converter
channel current sensing.
PWM1 (Pin 26), PWM2 (Pin 27), PWM3 (Pin 28),
PWM4 (Pin 29), PWM5 (Pin 30)
PWM outputs for each driven channel. Connect these pins
to the PWM input of the MOSFET driver. For systems
which using 2/3/4 channels, pull PWM 3/4/5 pins up to
high.
VDD (Pin 31)
IC power supply. Connect this pin to a 5V supply.
Function Block Diagram
VID7 (Pin 32), VID6 (Pin 33), VID5 (Pin 34), VID4 (Pin
35), VID3 (Pin 36), VID2 (Pin 37), VID1 (Pin 38),
VID0 (Pin 39), VID_SEL (40)
DAC voltage identification inputs for VRD10.x / VRD11 /
K8 / K8_M2 . These pins are internally pulled up to VTT.
VIDSEL
VTT
GND
VDD
VDD
VID [7]
X
X
NC
GND
Table
VR11
VR10.x
K8
K8_M2
GND [Exposed pad (41)]
The exposed pad must be soldered to a large PCB and
connected to GND for maximum power dissipation.
SS
VR_Ready
COMP
FB
OFS
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
VID_SEL
FBRTN
TSEN
VR_FAN
VR_HOT
Soft Start
& PGOOD
VDD
VTT/EN DVD
Power On
Reset
Oscillator
&
Ramp
RT
Generator
DAC
Clamp
EA
-
+
Temperature
Processing
Droop Tune
& Hi-I
Detection
Current
Processing
SUM/N
& OCP
Detection
Sample
& Hold
Pulse
Width
Modulator
& Output
Buffer
Mux
CSA
Mux
Mux
PWM1
PWM2
PWM3
PWM4
PWM5
IMAX
ISN1
ISN24
ISN35
ISP1
ISP2
ISP3
ISP4
ISP5
TCOC ADJ IOUT
GND
www.richtek.com
4
All brandname or trademark belong to their owner respectively
DS8802A-04 August 2007
Share Link: 