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RT8223L Datasheet(PDF) 9 Page - Richtek Technology Corporation

Part # RT8223L
Description  High Efficiency, Main Power Supply Controller for Notebook Computer
Download  24 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8223L Datasheet(HTML) 9 Page - Richtek Technology Corporation

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RT8223L/M
9
DS8223L/M-04 April 2011
www.richtek.com
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
UVP Shutdown Blanking Time
tSHDN_UVP From ENTRIPx Enable
--
5
--
ms
Thermal Shutdown
Thermal Shutdown
TSHDN
--
150
--
°C
Thermal Shutdown Hysteresis
--
10
--
°C
Logic Input
Low Level (DEM Mode)
--
--
0.8
REF Level (PWM Mode)
1.8
--
2.3
SKIPSEL Input Voltage
High Level (Ultrasonic Mode)
2.7
--
--
V
On Level (SMPS On)
--
--
3
ENTRIPx Input Voltage
VENTRIPx
High Level (SMPS Off)
4.5
--
--
V
Logic-High
VIH
2.4
--
--
EN Threshold
Voltage
Logic-Low
VIL
--
--
0.4
V
EN Voltage
VEN
Floating, Default Enable
2.4
3.3
4.2
V
VEN = 0.2V, Source
1.5
3
5
EN Current
IEN
VEN = 5V, Sink
--
3
8
μA
Logic-High
VIH_ENC
2
--
--
ENC Threshold
Voltage
(RT8223M)
Logic-Low
VIL_ENC
--
--
0.6
V
VOUT1 / VOUT2 = 200kHz/250kHz
--
--
0.8
VOUT1 / VOUT2 = 300kHz/375kHz
1.8
--
2.3
TONSEL Setting Voltage
VOUT1 / VOUT2 = 400kHz/500kHz
2.7
--
--
V
VTONSEL, VSKIPSEL = 0V or 5V
−1
--
1
Input Leakage Current
VENC = 0V or 5V
−1
--
1
μA
Internal BOOT Switch
Internal Boost Switch
On-Resistance
VREG5 to BOOTx, 10mA
--
40
80
Ω
Power MOSFET Drivers
UGATEx, High State,
BOOTx to PHASEx Forced to 5V
--
4
8
UGATEx On-Resistance
UGATEx, Low State,
BOOTx to PHASEx Forced to 5V
--
1.5
4
Ω
LGATEx, High State
--
4
8
LGATEx On-Resistance
LGATEx, Low State
--
1.5
4
Ω
LGATEx Rising
--
30
--
Dead Time
UGATEx Rising
--
40
--
ns


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