RT9209 Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT9209 Datasheet PDF : 14 Pages
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Electrical Characteristics
(VCC = 5V, TA = 25°C, Unless otherwise specified.)
Parameter
Symbol
Test Conditions
VCC Supply Current
Nominal Supply Current
Power-On Reset
ICC
UGATE, LGATE open
Rising VCC Threshold
VCC Threshold Hysteresis
Reference
Reference Voltage
Oscillator
RT9209
Free Running Frequency
RT9209A
Ramp Amplitude
Error Amplifier
Δ VOSC
DC gain
PWM Controller Gate Driver
Upper Drive Source
Upper Drive Sink
Lower Drive Source
Lower Drive Sink
Protection
RUGATE
RUGATE
RLGATE
RLGATE
BOOT= 12V
BOOT-VUGATE = 1V
VUGATE = 1V
VCC - VLGATE = 1V,
VLGATE = 1V
FB Over-Voltage Trip
FB Rising
FB Under-Voltage Trip
FB Falling
Power Good Threshold
FB pin Rising
Power Good Hysteresis
Power Good Sink Capability
SS Source Current
IPGOOD = 1mA
RT9209/A
Min Typ Max Units
--
3
6 mA
3.7 4.1 4.5 V
0.3 0.5 0.7 V
0.784 0.8 0.816 V
210 260 310
kHz
350 400 450
-- 1.75 -- VP-P
33 35 40 dB
--
7 12
Ω
--
7 7.5 Ω
--
7
6
Ω
--
3
4
Ω
--
1
--
V
-- 0.6 --
V
86 90 95 %
--
2
--
%
--
0.4 V
12 20 32 μA
DS9209/A-08 March 2007
www.richtek.com
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