RT8205A RICHTEK [Richtek Technology Corporation], RT8205A Datasheet - Page 12

• Manufacturer Part Number: RT8205A
• Description: High Efficiency, Main Power Supply Controllers for Notebook Computers
• Manufacturer: RICHTEK [Richtek Technology Corporation]

RT8205A/B/C
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
Note 2. θ
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. P
Copyright
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12
VOUT Discharge
VOUTx Discharge Current
Logic Input
FB1/FB2 Input Voltage
SKIPSEL Input Voltage
ENTRIPx Input Voltage
EN Threshold
Voltage
TONSEL Setting Voltage
Input Leakage Current
Internal BOOT Switch
Power MOSFET Drivers
Internal Boost Charging
Switch On-Resistance
UGATEx Driver Sink/Source
Current
LGATEx Driver Source
Current
LGATEx Driver Sink Current
UGATEx On-Resistance
LGATEx On-Resistance
Dead Time
©
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.
measured at the exposed pad of the package.
2012 Richtek Technology Corporation. All rights reserved.
JA
VIN
Parameter
is measured at T
+ P
VREG5
Logic-High
Logic-Low
A
= 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θ
V
V
I
DISx
Symbol
IH
IL
ENTRIPx = GND, V
Low Level (Internal Fixed VOUTx)
High Level (Internal Fixed VOUTx)
Low Level (PWM Mode)
REF Level (DEM Mode)
High Level (Ultrasonic Mode)
SMPS On Level
V
V
V
EN = 0V or 25V
TONSEL, SKIPSEL = 0V or 5V
FBx = SECFB = 0V or 5V
VREG5 to BOOTx
UGATEx Forced to 2V
LGATEx Forced to 2V
LGATEx Forced to 2V
BOOTx to PHASEx Forced to 5V
LGATEx, High State
LGATEx, Low State
LGATEx Rising
UGATEx Rising
OUT1
OUT1
OUT1
/V
/V
/V
OUT2
OUT2
OUT2
Test Conditions
= 200kHz/250kHz
= 300kHz/375kHz
= 400kHz/500kHz
OUTx
is a registered trademark of Richtek Technology Corporation.
= 0.5V
0.35
Min
4.5
1.8
2.5
1.8
2.5
10
−1
−1
−1
--
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--
--
--
--
--
--
--
--
--
--
--
1
DS8205A/B/C-06 July 2012
Typ
0.4
1.7
3.3
1.5
2.2
0.6
60
20
30
40
--
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--
--
--
--
--
--
--
--
--
--
--
2
Max
0.45
0.2
0.8
2.3
0.4
0.8
2.3
1.5
--
--
--
--
--
--
--
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5
--
--
3
1
1
4
Unit
mA
μA
ns
Ω
Ω
Ω
V
V
V
V
V
V
V
V
A
A
A
JC
is