RT8856 데이터 시트보기 (PDF) - Richtek Technology
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RT8856 Datasheet PDF : 23 Pages
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RT8856
Absolute Maximum Ratings (Note 1)
z VCC to GND ---------------------------------------------------------------------------------------------- −0.3V to 6.5V
z RGND, PGNDx to GND --------------------------------------------------------------------------------- −0.3V to 0.3V
z VIDx to GND ---------------------------------------------------------------------------------------------- −0.3V to (VCC + 0.3V)
z PSI, VRON to GND -------------------------------------------------------------------------------------- −0.3V to (VCC + 0.3V)
z PGOOD, CLKEN, VRTT to GND --------------------------------------------------------------------- −0.3V to (VCC + 0.3V)
z VSEN, FB, COMP, SOFT, FS, OCSET, CM, CMSET, NTC to GND -------------------------- −0.3V to (VCC + 0.3V)
z ISENx, ISEN1_N, ISEN2_N to GND ---------------------------------------------------------------- −0.3V to (VCC + 0.3V)
z PVCC to PGNDx ---------------------------------------------------------------------------------------- −0.3V to 6.5V
z LGATEx to PGNDx -------------------------------------------------------------------------------------- −0.3V to (PVCC + 0.3V)
z PHASEx to PGNDx ------------------------------------------------------------------------------------- −3V to 28V
z BOOTx to PHASEx ------------------------------------------------------------------------------------- −0.3V to 6.5V
z UGATEx to PHASEx ------------------------------------------------------------------------------------ −0.3V to (BOOTx − PHASEx)
z PGOOD ---------------------------------------------------------------------------------------------------- −0.3V to (VCC + 0.3V)
z Power Dissipation, PD @ TA = 25°C
WQFN−40L 6x6 ------------------------------------------------------------------------------------------ 2.941W
z Package Thermal Resistance (Note 2)
WQFN-40L 6x6, θJA ------------------------------------------------------------------------------------- 34°C/W
WQFN-40L 6x6, θJC ------------------------------------------------------------------------------------- 6°C/W
z Junction Temperature ----------------------------------------------------------------------------------- 150°C
z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------- 260°C
z Storage Temperature Range --------------------------------------------------------------------------- −65°C to 150°C
z ESD Susceptibility (Note 3)
HBM (Human Body Mode) ----------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------ 200V
Recommended Operating Conditions (Note 4)
z Supply Voltage, VCC ------------------------------------------------------------------------------------ 4.5V to 5.5V
z Battery Voltage, VIN ------------------------------------------------------------------------------------- 7V to 24V
z Junction Temperature Range -------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range -------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VCC = 5V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Supply Input
Supply Current
IVCC + IPVCC
RFS = 33kΩ, VVRON = 3.3V,
Not Switching
Shutdown Current
ICC + IPVCC VVRON = 0V
Soft-Start/Slew Rate Control (based on 10nF CSS)
Soft-Start / Soft-Shutdown ISS1
Deeper Sleep Exit/VID
Change Slew Current
ISS2
VSOFT = 1.5V
VSOFT = 1.5V
Min
Typ
Max Unit
--
--
10
mA
--
--
5
μA
16
20
24
μA
80
100
120
μA
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8
To be continued
DS8856-03 June 2011
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