RT8292BLGSP Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT8292BLGSP Datasheet PDF : 14 Pages
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RT8292B
Absolute Maximum Ratings (Note 1)
l Supply Voltage, VIN ----------------------------------------------------------------------------------------------- −0.3V to 25V
l Input Voltage, SW ------------------------------------------------------------------------------------------------- −0.3V to (VIN + 0.3V)
l VBOOT - VSW --------------------------------------------------------------------------------------------------------- −0.3V to 6V
l Other Pin Voltages ------------------------------------------------------------------------------------------------ −0.3V to 6V
l Power Dissipation, PD @ TA = 25°C
SOP-8 (Exposed Pad) -------------------------------------------------------------------------------------------- 1.333W
l Package Thermal Resistance (Note 2)
SOP-8 (Exposed Pad), θJA --------------------------------------------------------------------------------------- 75°C/W
SOP-8 (Εxposed Pad), θJC -------------------------------------------------------------------------------------- 15°C/W
l Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------ 260°C
l Junction Temperature --------------------------------------------------------------------------------------------- 150°C
l Storage Temperature Range ------------------------------------------------------------------------------------- −65°C to 150°C
l ESD Susceptibility (Note 3)
HBM (Human Body Mode) --------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ---------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
l Supply Voltage, VIN ----------------------------------------------------------------------------------------------- 4.5V to 23V
l Junction Temperature Range ------------------------------------------------------------------------------------ −40°C to 125°C
l Ambient Temperature Range ------------------------------------------------------------------------------------ −40°C to 85°C
Electrical Characteristics
(VIN = 12V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Shutdown Supply Current
Supply Current
Feedback Voltage
Error Amplifier
Transconduc tance
High Side Switch
On-Resistance
Low Side Switch
On-Resistance
High Side Switch Leakage
Current
Upper Switch Current Limit
VFB
GEA
RDS(ON)1
RDS(ON)2
Lower Switch Current Limit
COMP to Current Sense
Transconduc tance
Oscillation Frequency
Short Circuit Oscillation
Frequenc y
Maximum Duty Cycle
Minimum On Time
GCS
fOS C1
fOS C2
DMAX
tON
VEN = 0V
VEN = 3V, VFB = 0.9V
4.5V ≤ VIN ≤ 23V
∆IC = ±10µA
--
--
0.788
--
--
--
VEN = 0V, VSW = 0V
--
Min. Duty Cycle, VBOOT − VSW = 4.8V --
From Drain to Source
--
--
1
VFB = 0V
--
VFB = 0.7V
--
--
0.5
3
µA
0.8 1.2 mA
0.8 0.812 V
940
-- µA/V
130
--
mΩ
130
--
mΩ
0
10
µA
4.3
--
A
1.3
--
A
4
-- A/V
1.2 1.4 MHz
270
--
kHz
75
--
%
100
--
ns
To be continued
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4
DS8292B-03 March 2011
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