RT8293BLGSP Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT8293BLGSP Datasheet PDF : 14 Pages
| |||
RT8293B
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 All 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
Shutdown Supply Current
VEN = 0V
Supply Current
VEN = 3V, VFB = 0.9V
Feedback Voltage
Error Amplifier
Transconductance
High Side Switch
On-Resistance
Low Side Switch
On-Resistance
High Side Switch Leakage
Current
VFB
4.5V ≤ VIN ≤ 23V
GEA
∆IC = ±10µA
RDS(ON)1
RDS(ON)2
VEN = 0V, VSW = 0V
High Side Switch Current Limit
Min. Duty Cycle, BOOT−VSW = 4.8V
Low Side Switch Current Limit
From Drain to Source
COMP to Current Sense
Transconductance
Oscillation Frequency
Short Circuit Oscillation
Frequency
Maximum Duty Cycle
Minimum On-Time
GCS
FOSC1
FOSC2
DMAX
tON
VFB = 0V
VFB = 0.7V
www.richtek.com
4
Min Typ Max Unit
--
0.5
3
µA
--
0.8 1.2 mA
0.788 0.8 0.812 V
-- 940 -- µA/V
--
85
-- mΩ
--
85
-- mΩ
--
0
10
µA
--
5.1
--
A
--
1.5
--
A
--
5.4
--
A/V
1
1.2 1.4 MHz
-- 270 -- kHz
--
75
--
%
-- 100 --
ns
To be continued
DS8293B-03 March 2011
Share Link: 