RT8805 데이터 시트보기 (PDF) - Richtek Technology
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RT8805 Datasheet PDF : 15 Pages
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Preliminary
RT8805
Parameter
Symbol
Test Conditions
Reference Voltage
Feedback Voltage
Error Amplifier
VFB
VFB = 0.8V
DC Gain
Gain-Bandwidth Product
Trans-conductance
MAX Current (Source & Sink)
Current Sense GM Amplifier
GBW
GM
ICOMP
CLOAD = 5pF
RLOAD = 20kΩ
VCOMP = 2.5V
OC
Gate Driver
VPHASE
RIMAX = 33kΩ
Maximum Upper Drive Source
Upper Drive Sink
Maximum Lower Drive Source
Lower Drive Sink
Protection
IUGATE(MAX) BOOT − PHASE = 12V
RUGATE
VUGATE = 1V
ILGATE(MAX) PVCC = 12V
RLGATE
VLGATE = 1V
Under Voltage Protection
Power Sequence
Power Good Threshold
Power Good Sink Capability (4mA)
Min Typ Max Units
0.784 0.8 0.816 V
60
70
6
10
600 660
300 360
--
dB
-- MHz
-- μA/V
--
μA
--
-220
--
mV
1
--
--
A
--
3.5
7
Ω
1
--
--
A
--
2
4
Ω
0.55 0.6 0.65 V
3.4 3.7
4
V
-- 0.05 0.2
V
Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2. Devices are ESD sensitive. Handling precaution recommended.
Note 3. The device is not guaranteed to function outside its operating conditions.
Note 4. θJA is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard.
DS8805-01 November 2005
www.richtek.com
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