RT9224CS Просмотр технического описания (PDF) - Richtek Technology
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RT9224CS
Richtek Technology
RT9224CS Datasheet PDF : 8 Pages
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RT9224
Absolute Maximum Ratings
Supply Voltage ------------------------------------------------------------------------------------------------------- +15V
Boot Voltage ---------------------------------------------------------------------------------------------------------- +15V
Input, Output or I/O Voltage --------------------------------------------------------------------------------------- GND -0.3V to Vcc + 0.3V
Storage Temperature Range --------------------------------------------------------------------------------------- −65° C to 150° C
Package Thermal Resistance
SOP-20,θJA ---------------------------------------------------------------------------------------------------------------------------------------------------------- 87° C/W
Recommended Operating Conditions
Supply Voltage, VCC ------------------------------------------------------------------------------------------------------------------------------------------ +12V ±10%
Ambient Temperature Range -------------------------------------------------------------------------------------- 0° C to 70°C
Junction Temperature Range -------------------------------------------------------------------------------------- 0° C to 125°C
Electrical Characteristics
(TA = 25° C, recommended operating conditions, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Units
VCC Supply Current
Nominal Supply
Power-On Reset
ICC
UGATE and LGATE Open --
3
--
mA
VCC Rising Threshold
VCC Falling Threshold
Rising VOCSET Threshold
Oscillator
VOCSET = 4.5V
VOCSET = 4.5V
--
9.5
--
V
--
7.5
--
V
--
1.6
--
V
Free Running Frequency
170 200 230 kHz
Ramp Amplitude
Reference and DAC
∆VOSC
--
1.9
--
VP-P
DAC (VID0 – VID4) Input Low Voltage
--
--
0.8
V
DAC (VID0 – VID4) Input High Voltage
2.0
--
--
V
DACOUT Voltage Accuracy
-1.0
-- +1.0 %
Error Amplifier
DC Gain
--
65
--
dB
Gate Drivers
UGATE Source
UGATE Sink
LGATE Source
LGATE Sink
RUGATE VBOOT - VPHASE = 12V
RUGATE VUGATE - VPHASE = 1V
ILGATE VCC = 12V, VLGATE = 6V
RLGATE VLGATE = 1V
--
8
--
Ω
--
5
--
Ω
--
500
--
mA
--
5
--
Ω
To be continued
www.richtek.com
6
DS9224-05 March 2004
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