RT9227A-CS Просмотр технического описания (PDF) - Richtek Technology
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RT9227A-CS Datasheet PDF : 10 Pages
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Preliminary
RT9227A
Parameter
Symbol
Test Conditions
Linear Regulator
Regulation Voltage
Under-Voltage Level
VREG
10mA < IVOUT2 < 150mA
FB2 Rising
Under-Voltage Hysteresis
Over-Current Protection
Over-Current Protection During Start-Up
Linear Controller
Regulation Voltage
Under-Voltage Level
VREG
VSEN3 = GATE3
0 < IGATE3 < 20mA
FB3 Rising
Under-Voltage Hysteresis
PWM Controller Error Amplifier
DC Gain
PWM Controller Gate Driver
UGATE Source
UGATE Sink
LGATE Source
LGATE Sink
Protection
VCC = 12V
RUGATE1 VCC - VUGATE1 = 1V
RUGATE1 VUGATE1 = 1V
ILGATE1 VCC = 12V, VLGATE1 = 2V
RLGATE1 VLGATE1 = 1V
VOUT1 Over-Voltage Trip
FAULT Souring Current
OCSET1 Current Source
Soft-Start Current
Power Good
IOCSET
ISS
VSEN1 Rising
VFAULT = 8V
VOCSET1 = 4.5V
VSS = 1V
VOUT1 Upper Threshold
VOUT1 Under Voltage
VOUT1 Hysteresis (VSEN1 / DACOUT)
PGOOD Voltage Low
VSEN1 Rising
VSEN1 Rising
Upper/Lower Threshold
VPGOOD IPGOOD = -4mA
Min Typ Max
2.437
--
--
180
--
2.500
1.875
100
230
700
2.563
2.175
--
--
--
1.462 1.500 1.538
-- 1.125 1.305
--
100
--
--
65
--
--
3
7
--
3
7
--
1
--
--
2
6
112 115 120
10
14
--
170 200 230
--
11
--
108
--
112
89
--
95
--
2
--
--
--
0.5
Units
V
V
mV
mA
mA
V
V
mV
dB
Ω
Ω
A
Ω
%
mA
µA
µA
%
%
%
V
DS9227A-02 July 2001
www.richtek-ic.com.tw
3
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