RT9232 Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
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Lista de partido
RT9232 Datasheet PDF : 14 Pages
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RT9232
Absolute Maximum Ratings (Note 1)
Supply Input Voltage, VCC, PVCC --------------------------------------------------------------------------- 15V
PHASE to GND
DC ------------------------------------------------------------------------------------------------------------------- −5V to 15V
< 200ns ------------------------------------------------------------------------------------------------------------ −10V to 30V
BOOT to PHASE ------------------------------------------------------------------------------------------------ 15V
BOOT to GND
DC ------------------------------------------------------------------------------------------------------------------- −0.3V to VCC+15V
< 200ns ------------------------------------------------------------------------------------------------------------ −0.3V to 42V
SS, FB, COMP, RT --------------------------------------------------------------------------------------------- 6V
Input, Output or I/O Voltage ----------------------------------------------------------------------------------- GND−0.3V to VCC+ 0.3V
Package Thermal Resistance (Note 4)
SOP-14, θJA ----------------------------------------------------------------------------------------------------- 100°C/W
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------- 260°C
Junction Temperature ------------------------------------------------------------------------------------------ 150°C
Storage Temperature Range ---------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ----------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 3)
Supply Input Voltage, VCC ------------------------------------------------------------------------------------ 12V ±10%
Supply Voltage to Drain of Upper MOSFETs, VIN ------------------------------------------------------- 3.3V, 5V to 12V ±10%
Ambient Temperature Range --------------------------------------------------------------------------------- 0°C to 70°C
Junction Temperature Range --------------------------------------------------------------------------------- 0°C to 125°C
Electrical Characteristics
(VCC = 12V, TA = 25°C, Unless otherwise specified.)
Parameter
Symbol
Test Conditions
VCC Supply Current
Nominal Supply Current
ICC
EN=VCC, UGATE, LGATE open
Power-On Reset (POR)
Min Typ. Max Units
--
3
-- mA
VCC Rising Threshold
VCC_ON VSENSE = 4.5V
Power On Reset Hysteresis
VSENSE = 4.5V
SENSE Rising Threshold for start up VSENSE_ON
Enable Input Threshold (ON)
VEN_ON VSENSE = 4.5V
Enable Input Threshold (OFF)
VEN,_OFF VSENSE = 4.5V
Oscillator
8.4 -- 10 V
0.4 0.7 --
V
-- 1.5 2
V
-- --
2
V
0.8 --
--
V
RT9232
Free Running Frequency
Variation
fOSC
6k < (RT to GND) < 200k
170 200 230 kHz
-20
20 %
Ramp Amplitude
Reference
Δ VOSC
--
2
--
VP-P
Error Amplifier Reference Voltage
www.richtek.com
4
VREF
0.792 0.8 0.808 V
To be continued
DS9232-06 March 2007
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