RT8800 데이터 시트보기 (PDF) - Richtek Technology
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RT8800 Datasheet PDF : 26 Pages
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RT8800/B
Absolute Maximum Ratings (Note 1)
Supply Voltage, VDD ------------------------------------------------------------------------------------------- 7V
Input, Output or I/O Voltage ---------------------------------------------------------------------------------- GND − 0.3V to VDD+ 0.3V
Power Dissipation, PD @ TA = 25°C
VQFN-16L 3X3 -------------------------------------------------------------------------------------------------- 1.47W
SOP-16 ----------------------------------------------------------------------------------------------------------- 1W
Package Thermal Resistance (Note 4)
VQFN-16L 3X3, θJA --------------------------------------------------------------------------------------------- 68°C/W
SOP-16, θJA ----------------------------------------------------------------------------------------------------- 100°C/W
Junction Temperature ------------------------------------------------------------------------------------------ 150°C
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------- 260°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 Voltage, VDD ------------------------------------------------------------------------------------------- 5V ± 10%
Ambient Temperature Range --------------------------------------------------------------------------------- 0°C to 70°C
Junction Temperature Range --------------------------------------------------------------------------------- 0°C to 125°C
Electrical Characteristics
(VDD = 5V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
VDD Supply Current
Nominal Supply Current
IDD
Power-On Reset
VDD Threshold
Rising
Hysteresis
DVD Rising Threshold
DVD Hysteresis
Oscillator
Free Running Frequency
Frequency Adjustable Range
Ramp Amplitude
Ramp Valley
Maximum On-Time of Each Channel
fOSC
fOSC_ADJ
ΔVOSC
VRV
Minimum On-Time of Each Channel
RT Pin Voltage
VRT
Test Conditions
PWM 1,2,3 Open
RRT = 16kΩ
RRT = 16kΩ
RRT = 16kΩ
Min Typ Max Units
--
5
--
mA
4.0 4.2 4.5
V
0.2 0.5 --
V
0.75 0.8 0.85 V
--
65
--
mV
170 200 230 kHz
50
-- 400 kHz
-- 1.7 --
V
-- 1.0 --
V
62
66
75
%
-- 120 --
ns
0.77 0.82 0.87 V
To be continued
All brand name or trademark belong to their owner respectively
DS8800/B-06 March 2007
www.richtek.com
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