RT8250GSP Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT8250GSP Datasheet PDF : 12 Pages
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Function Block Diagram
VIN
Internal
Regulator
Oscillator
340kHz/110kHz
Current Sense
Slope Comp Amplifier
+
Shutdown
Comparator
1.2V +
VA VCC
Foldback
-
Control
5k
EN
-
0.5V +
2.5V +
-
3V
Lockout
Comparator
UV
Comparator
VCC
-
SQ
+
RQ
-
Current
Comparator
7µA
SS
0.925V
+
+
EA
-
FB
COMP
RT8250
VA
100mΩ
85mΩ
BOOT
SW
GND
Absolute Maximum Ratings (Note 1)
Supply Voltage, VIN ------------------------------------------------------------------------------------------ −0.3V to 24V
Switching Voltage, SW ------------------------------------------------------------------------------------- −0.3V to (VIN + 0.3V)
<20ns ---------------------------------------------------------------------------------------------------------- −0.3V to (VIN + 3V)
BOOT Voltage ------------------------------------------------------------------------------------------------- (VSW − 0.3V) to (VSW + 6V)
The Other Pins ------------------------------------------------------------------------------------------------ −0.3V to 6V
Power Dissipation, PD @ TA = 25°C
SOP-8 (Exposed Pad) -------------------------------------------------------------------------------------- 1.333W
Package Thermal Resistance (Note 2)
SOP-8 (Exposed Pad), θJA --------------------------------------------------------------------------------- 75°C/W
SOP-8 (Exposed Pad), θJC -------------------------------------------------------------------------------- 15°C/W
Junction Temperature ---------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------ 260°C
Storage Temperature Range ------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Mode) --------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ----------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
Supply Voltage, VIN ------------------------------------------------------------------------------------------ 4.5V to 23V
Enable Voltage, VEN ----------------------------------------------------------------------------------------- 0V to 5.5V
Junction Temperature Range ------------------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range ------------------------------------------------------------------------------- −40°C to 85°C
DS8250-05 March 2011
www.richtek.com
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