RT9174 View Datasheet(PDF) - Richtek Technology
Part Name
Description
Manufacturer
RT9174 Datasheet PDF : 7 Pages
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RT9174
Preliminary
Absolute Maximum Ratings
z Input Voltage VDD ------------------------------------------------------------------------------------------------------ 8V
z Feedback FB1/FB2/FB3 --------------------------------------------------------------------------------------------- −0.3 to 8V
z DriverDRI1/DRI2/DRI3 ------------------------------------------------------------------------------------------------ −0.3 to 12V
z Power Dissipation, PD @ TA = 25°C
SOP-8 -------------------------------------------------------------------------------------------------------------------- 0.625W
z Package Thermal Resistance
SOP-8, θJA -------------------------------------------------------------------------------------------------------------- 160° C/W
z Operating Junction Temperature Range -------------------------------------------------------------------------- −40°C to 125°C
z Storage Temperature Range ---------------------------------------------------------------------------------------- −65°C to 150°C
Electrical Characteristics
(VDD = 5V, CIN = 1F, 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 = 4 to 7V
-- 2 10 mV
Source 100mA, DRI1/DRI2/DRI3 = 2.5V --
5 10
mV
Sink 5mA, DRI1/DRI2/DRI3 = 2.5V
-- 10 15
Driving Capability
Sourcing, DRI1/DRI2/DRI3 = 2.5V
100 -- --
IO
mA
Sink DRI1/DRI2/DRI3 = 2.5V
5
-
--
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 VTS
Thermal Limit
Sweep FB1/FB2/FB3 to Driver Output Off 1.0 1.35 2.0 V
-- 150 -- °C
Power On Reset Voltage
POR
-- 2.4 --
V
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4
DS9174-06 March 2007
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