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RT9702 Просмотр технического описания (PDF) - Richtek Technology

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RT9702 Datasheet PDF : 16 Pages
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RT9702/A
Absolute Maximum Ratings (Note 1)
z Supply Voltage --------------------------------------------------------------------------------------------------------- 6.5V
z Chip Enable Input Voltage ------------------------------------------------------------------------------------------- 0.3V to 6.5V
z Flag Voltage ------------------------------------------------------------------------------------------------------------ 6.5V
z Power Dissipation, PD @ TA = 25°C
SOT-23-5, TSOT-23-5 ------------------------------------------------------------------------------------------------- 0.4W
z Package Thermal Resistance (Note 4)
SOT-23-5, TSOT-23-5, θJA ------------------------------------------------------------------------------------------- 250°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 2)
HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 8kV
MM (Machine Mode) -------------------------------------------------------------------------------------------------- 800V
Recommended Operating Conditions (Note 3)
z Supply Input Voltage -------------------------------------------------------------------------------------------------- 2V to 5.5V
z Chip Enable Input Voltage ------------------------------------------------------------------------------------------- 0V to 5.5V
z Junction Temperature Range ---------------------------------------------------------------------------------------- 20°C to 100°C
z Ambient Temperature Range ---------------------------------------------------------------------------------------- 40°C to 85°C
Electrical Characteristics
(VIN = 5V, CIN = COUT = 1μF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
RT9702
Switch On Resistance
RT9702A
RDS(ON)
IOUT = 500mA
IOUT = 1.1A
Supply Current
ISW_ON switch on, VOUT = Open
ISW_OFF switch off, VOUT = Open
EN Threshold Logic-Low Voltage VIL
Logic-High Voltage VIH
VIN = 2V to 5.5V, switch off
VIN = 2V to 5.5V, switch on
EN Input Current
IEN
VEN = 0V to 5.5V
Output Leakage Current
ILEAKAGE VEN = 0V, RLOAD = 0Ω
Output Turn-On Rise Time
TON_RISE 10% to 90% of VOUT rising
Current Limit
RT9702
ILIM
RT9702A
RLOAD = 1Ω
Short Circuit Fold-
Back Current
RT9702
ISC_FB
RT9702A
VOUT = 0V, measured prior to
thermal shutdown
FLAG Output Resistance
FLAG Off Current
FLAG Delay Time (Note 5)
RFLG
IFLG_OFF
tD
ISINK = 1mA
VFLG = 5V
From fault condition to FLG
assertion
www.richtek.com
4
Min Typ Max Units
--
80 100 mΩ
--
25 45
μA
--
0.1
1
--
-- 0.8 V
2.0 --
--
V
-- 0.01 --
μA
-- 0.5 10 μA
-- 400 --
μs
0.5 0.8 1.1
A
1.1 1.5 2.0
-- 0.8 --
A
-- 1.0 --
--
20 400 Ω
-- 0.01 1
μA
2
10 15 ms
To be continued
DS9702/A-11 June 2007

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