RT9174CS Просмотр технического описания (PDF) - Richtek Technology
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RT9174CS Datasheet PDF : 8 Pages
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RT9174
Preliminary
Absolute Maximum Ratings
z Input Voltage VDD
z Feedback FB1/FB2/FB3
z Driver DRI1/DRI2/DRI3
z Power Dissipation, PD @ TA = 25°C
SOP-8
z Package Thermal Resistance
SOP-8, θJA
z Operating Junction Temperature Range
z Storage Temperature Range
8V
-0.3 ~ 8V
-0.3 ~ 12V
0.625W
160°C/W
-40°C ~ 125°C
65°C ~ 150°C
Electrical Characteristics
(VDD = 5V, CIN = 1µF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Units
Supply Current
IDD
Feedback Reference Voltage VREF
Line Regulation
∆VLINE
Load Regulation
∆VLOAD
No Load
0.8 2 mA
No Load
0.78 0.8 0.82 V
VDD = 4V~7V
Source 100mA, DRI1/DRI2/DRI3 = 2.5V
Sink 5mA, DRI1/DRI2/DRI3 = 2.5V
2 10 mV
5 10
mV
10 15
Sourcing, DRI1/DRI2/DRI3 = 2.5V
100
Driving Capability
IO
Sink DRI1/DRI2/DRI3 = 2.5V
5
mA
Driver Current Limiting
ICL
Sourcing, DRI1/DRI2/DRI3 = 2.5V
Sink DRI1/DRI2/DRI3 = 2.5V
300 700
mA
40 150
Driver Tri-State Threshold
Thermal Limit
Power On Reset Voltage
VTS
POR
Sweep FB1/FB2/FB3 to Driver Output Off 1.0 1.35 2.0 V
150
°C
2.4
V
www.richtek-ic.com.tw
4
DS9174-00 April 2001
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