RT8862 데이터 시트보기 (PDF) - Richtek Technology

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RT8862

Advanced 4/3/2/1-Phase PWM Controller with Embedded Drivers for CPU Core Power Supply

Richtek Technology 

RT8862

Absolute Maximum Ratings (Note 1)

z Supply Input Voltage ------------------------------------------------------------------------------- −0.3V to 15V

z BOOTx to PHASEx -------------------------------------------------------------------------------- −0.3V to 15V

z PHASEx to GND

DC ------------------------------------------------------------------------------------------------------ −2V to 15V

< 20ns ------------------------------------------------------------------------------------------------- −5V to 30V

z UGATEx to GND ------------------------------------------------------------------------------------ (VPHASE − 0.3V) to (VBOOT + 0.3V)

< 20ns ------------------------------------------------------------------------------------------------- (VPHASE − 5V) to (VBOOT + 5V)

z LGATEx to GND ------------------------------------------------------------------------------------- (GND − 0.3V) to (VCC + 0.3V)

< 20ns ------------------------------------------------------------------------------------------------- (GND− 5V) to (VCC + 5V)

z Others Pins ------------------------------------------------------------------------------------------ − 0.3V to 6.5V

z Input/Output Voltage ------------------------------------------------------------------------------- −0.3V to (VCC5 + 0.3V)

z Power Dissipation, PD @ TA = 25°C

WQFN−48L 7x7 ------------------------------------------------------------------------------------- 2.941W

z Package Thermal Resistance (Note 2)

WQFN−48L 7x7, θJA ------------------------------------------------------------------------------- 34°C/W

WQFN−48L 7x7, θJC ------------------------------------------------------------------------------- 7°C/W

z Junction Temperature ------------------------------------------------------------------------------ 150°C

z Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------- 260°C

z ESD Susceptibility (Note 3)

HBM (Human Body Mode) ------------------------------------------------------------------------ 2kV

MM (Machine Mode) ------------------------------------------------------------------------------- 200V

Recommended Operating Conditions (Note 4)

z Supply Voltage, VCC12 ---------------------------------------------------------------------------------------- 12V ± 10%

z Junction Temperature Range ---------------------------------------------------------------------------------- −40°C to 125°C

z Ambient Temperature Range ---------------------------------------------------------------------------------- 0°C to 70°C

Electrical Characteristics

(VCC12 = 12V, VGND = 0V, TA = 25°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

VCC12 Supply Input

VCC12 Supply Voltage

VCC12

VCC12 Supply Current

ICC

VCC5 Power

VCC5 Supply Voltage

VCC5 Output Sourcing

Power On Reset

VCC5

IVCC5

ILOAD = 10mA (Note 6)

VCC12 Rising Threshold

VCC12 Hysteresis

VCC5 Rising Threshold

VCC5 Hysteresis

VVCC12TH

VVCC12HY

VVCC5TH

VVCC5HY

VCC12 Rising

VCC12 Falling

Min Typ Max Unit

10.8 12 13.2 V

--

6

-- mA

4.75 5.0 5.25 V

10

--

-- mA

9.2

9.6

10

V

--

0.9

--

V

4.4

4.6

4.8 V

--

0.4

--

V

DS8862-01 April 2011

To be continued

www.richtek.com

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