RT8223A Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Lista de partido
RT8223A Datasheet PDF : 26 Pages
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RT8223A/B
Parameter
Logic Input
FB1/FB2 Input Voltage
SKIPSEL Input Voltage
ENTRIPx Input Voltage
EN Voltage
EN Current
ENC Threshold Voltage
(RT8223B)
TONSEL Setting Voltage
Input Leakage Current
Internal BOOT Switch
Internal Boost Charging
Switch On-Resistance
Power MOSFET Drivers
UGATEx On-Resistance
LGATEx On-Resistance
Dead Time
Symbol
Test Conditions
V ENTRI Px
VEN
IEN
VENC
Low Level (Internal Fixed VOUTx)
High Level (Internal Fixed VOUTx)
Low Level (DEM Mode)
REF Level (PWM Mode)
High Level (Ultrasonic Mode)
Low Level (SMPSs Off)
On Level (SMPSs On)
High Level (SMPSs Off)
Shutdown
Enable
Open
VEN = 0.2V (Source)
VEN = 3.3V (Sink)
Shutdown
Enable
VOUT1/VOUT2 = 200kHz/250kHz
VOUT1/VOUT2 = 300kHz/375kHz
VOUT1/VOUT2 = 400kHz/500kHz
TONSEL, SKIPSEL = 0V or 5V
ENC = 0V or 5V (RT8223B)
VREG5 to BOOTx
UGATEx, High state
UGATEx, Low state
LGATEx, High State
LGATEx, Low State
LGATEx Rising
UGATEx Rising
Min Typ Max Unit
--
--
0.2
V
4.5 --
--
--
--
0.8
1.8
--
2.3
V
2.7 --
--
--
-- 0.35
0.5 --
2
V
4.5 --
--
--
--
0.4
2.4 --
--
V
2.4 3.3 4.2
1
3
5
μA
--
3
8
--
--
0.6
V
2
--
--
--
--
0.8
1.8
--
2.3
V
2.7 --
--
−1
--
−1
--
1
μA
1
--
20
--
Ω
--
3
6
--
1.5
4
Ω
--
2.2
5
--
0.6 1.5
--
30
--
ns
--
40
--
Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for
stress ratings. 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 for extended
periods may remain possibility to affect device reliability.
Note 2. θJA is measured in natural convection at TA = 25°C on a high effective thermal conductivity four-layer test board of
JEDEC 51-7 thermal measurement standard. The measurement case positions of θJC are on the lead of the SOP
package and the expose pad for the SOP(Exposed Pad) 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
DS8223A/B-04 April 2011
www.richtek.com
11
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