RT9229 Просмотр технического описания (PDF) - Richtek Technology
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RT9229 Datasheet PDF : 10 Pages
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RT9229
Parameter
Symbol
Test Conditions
Oscillator
Free Running Frequency
Ramp Amplitude
Linear Regulator
∆VOSC
Regulation
Under-voltage Level
10mA < IVOUT2 < 150mA
FB4 Rising
Under-voltage Hysteresis
Over-current Protection
IOVP
Over-current Protection During Start-
up
Linear Controller
Regulation
Under-voltage Level
VSEN3 = GATE3
0 < IGATE3 < 20mA
FB3 Rising
Under-voltage Hysteresis
Output Drive Current
PWM Controller Error Amplifier
VIN2 – VOUT3 > 1.5V
DC Gain
PWM Controller Gate Driver
UGATE 1 (and 2) Source
UGATE 1 (and 2) Sink
RUGATE
RUGATE
VCC = 12V
VCC - VUGATE = 1V
VUGATE = 1V
LGATE Source
ILGATE1 VCC = 12V, VLGATE1 = 2V
LGATE Sink
Protection
RLGATE1 VLGATE1 = 1V
VOUT1 Over-voltage Trip
VOUT2 Over-voltage Trip
FAULT Souring Current
OCSET1 (and 2) Current Source
Soft-start Current
Power Good
IOCSET
ISS
VSEN1 Rising
VSEN2 Rising
VFAULT = 8V
VOCSET = 4.5VDC
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 Units
180 200 225 kHz
--
1.9
--
VP-P
-2.5
--
2.5
%
--
75
87
%
--
100
--
mV
180 230
--
mA
--
700
--
mA
-2.5
--
2.5
%
--
75
87
%
--
100
--
mV
20
40
--
mA
--
65
--
dB
--
3
7
Ω
--
3
7
Ω
--
1
--
A
--
2
6
Ω
112 115 118
%
4.1 4.3 4.5
V
10
14
--
mA
170 200 230 µA
--
11
--
µA
108
--
112
%
90
--
94
%
--
2
--
%
--
--
0.5
V
DS9229-03 July 2001
www.richtek-ic.com.tw
3
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