rt9230 ETC-unknow, rt9230 Datasheet - Page 4

• Manufacturer Part Number: rt9230
• Description: 1.5v Advanced Dual Pwm And Dual Linear Power Controller
• Manufacturer: ETC-unknow

RT9230
Function Block Diagram
www.richtek-ic.com.tw
4
UGATE2
PHASE2
SELECT
DRIVE4
GATE3
VSEN4
VSEN2
75%
+
1.5V or 3.3V
VCC
VAUX
CONTROL
COMPEN-
_
SATION
_
GATE
DRIVE2
_
+
1.26V
VSEN3
75%
PWM2
INHIBIT
_
+
ERROR
AMP2
_
_
COMP2
OC2
PWM
OSCILLATOR
_
_
FAULT
INHIBIT
FAULT
200 µ A
VOLTAGE
SOFT-START
LINEAR
UNDER
OCSET2
& FAULT
LOGIC
LUV
SS
VCC
OV
28 µ A
5V
110%
FB1
115%
90%
DACOUT
ERROR
VSEN1
AMP1
_
COMPEN-
SATION
_
_
OC1
_
COMP1
_
PWM
200 µ A
_
OCSET1
PWM1
VID0
CONVERTER
VID1
TTL D/A
(DAC)
CONTROL
VID2
LOGIC
GATE
RESET (POR)
UPPER
POWER-ON
DRIVE
LOWER
VID3
DRIVE
VCC
VID4
DS9230-03 July 2001
VCC
VCC
PGOOD
UGATE1
LGATE1
PGND
GND
PHASE1
VAUX