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RT8205CGQW データシート(PDF) 12 Page - Richtek Technology Corporation

部品番号 RT8205CGQW
部品情報  High Efficiency, Main Power Supply Controllers for Notebook Computers
PDF  28 Pages
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メーカー  RICHTEK [Richtek Technology Corporation]
ホームページ  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8205CGQW データシート(HTML) 12 Page - Richtek Technology Corporation

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RT8205A/B/C
12
DS8205A/B/C-06 July 2012
www.richtek.com
©
Copyright 2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Note 1.
Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and 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 may
affect device reliability.
Note 2.
θJA is measured at TA = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θJC is
measured at the exposed pad of the package.
Note 3.
Devices are ESD sensitive. Handling precaution is recommended.
Note 4.
The device is not guaranteed to function outside its operating conditions.
Note 5.
PVIN + PVREG5
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
VOUT Discharge
VOUTx Discharge Current
IDISx
ENTRIPx = GND, VOUTx = 0.5V
10
60
--
mA
Logic Input
Low Level (Internal Fixed VOUTx)
--
--
0.2
V
FB1/FB2 Input Voltage
High Level (Internal Fixed VOUTx)
4.5
--
--
V
Low Level (PWM Mode)
--
--
0.8
V
REF Level (DEM Mode)
1.8
--
2.3
V
SKIPSEL Input Voltage
High Level (Ultrasonic Mode)
2.5
--
--
V
ENTRIPx Input Voltage
SMPS On Level
0.35
0.4
0.45
V
Logic-High
VIH
1
--
--
EN Threshold
Voltage
Logic-Low
VIL
--
--
0.4
V
VOUT1/VOUT2 = 200kHz/250kHz
--
--
0.8
VOUT1/VOUT2 = 300kHz/375kHz
1.8
--
2.3
TONSEL Setting Voltage
VOUT1/VOUT2 = 400kHz/500kHz
2.5
--
--
V
EN = 0V or 25V
−1
--
3
TONSEL, SKIPSEL = 0V or 5V
−1
--
1
Input Leakage Current
FBx = SECFB = 0V or 5V
−1
--
1
μA
Internal BOOT Switch
Internal Boost Charging
Switch On-Resistance
VREG5 to BOOTx
--
20
--
Ω
Power MOSFET Drivers
UGATEx Driver Sink/Source
Current
UGATEx Forced to 2V
--
2
--
A
LGATEx Driver Source
Current
LGATEx Forced to 2V
--
1.7
--
A
LGATEx Driver Sink Current
LGATEx Forced to 2V
--
3.3
--
A
UGATEx On-Resistance
BOOTx to PHASEx Forced to 5V
--
1.5
4
Ω
LGATEx, High State
--
2.2
5
LGATEx On-Resistance
LGATEx, Low State
--
0.6
1.5
Ω
LGATEx Rising
--
30
--
Dead Time
UGATEx Rising
--
40
--
ns



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