RT8105GS datasheet(4/12 Pages) RICHTEK

4 / 12 page

RT8105

www.richtek.com

DS8105-03 April 2011

Electrical Characteristics

(VCC = 5V/12V, TA = 25

°C, unless otherwise specified)

Absolute Maximum Ratings

(Note 1)

Supply Voltage, VCC -------------------------------------------------------------------------------------- 16V

BOOT to PHASE ------------------------------------------------------------------------------------------ 15V

UGATE to PHASE

DC-------------------------------------------------------------------------------------------------------------

−0.3V to (VBOOT-PHASE + 0.3V)

<20ns --------------------------------------------------------------------------------------------------------

−5V to (VBOOT-PHASE + 5V)

PHASE to GND

DC-------------------------------------------------------------------------------------------------------------

−0.5V to 15V

<20ns --------------------------------------------------------------------------------------------------------

−5V to 25V

LGATE to GND

DC-------------------------------------------------------------------------------------------------------------

−0.3V to (VCC + 0.3V)

<20ns --------------------------------------------------------------------------------------------------------

−5V to (VCC + 5V)

Input, Output or I/O Voltage ----------------------------------------------------------------------------- GND-0.3V to 7V

Power Dissipation, PD @ TA = 25

°C (Note 2)

SOP-8 -------------------------------------------------------------------------------------------------------- 0.625W

Package Thermal Resistance

SOP-8,

θJA -------------------------------------------------------------------------------------------------- 160°C/W

Junction Temperature ------------------------------------------------------------------------------------- 150

°C

Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------- 260

°C

Storage Temperature Range ----------------------------------------------------------------------------

−65°C to 150°C

ESD Susceptibility (Note 3)

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

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

Recommended Operating Conditions

(Note 4)

Supply Voltage, VCC -------------------------------------------------------------------------------------- 5V

± 5%,12V ± 10%

Junction Temperature Range ----------------------------------------------------------------------------

−40°C to 125°C

Ambient Temperature Range ----------------------------------------------------------------------------

−20°C to 85°C

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

IC Supply Voltage

VCC

4.75

13.2

Nominal Supply Current

ICC

UGATE and LGATE Open

Power-On Reset

POR Threshold

VCCRTH

VCC Rising

3.8

4.1

4.35

Hysteresis

VCCHYS

0.35

0.5

Switcher Reference

Reference Voltage

VREF

VCC = 12V

0.784

0.8

0.816

Oscillator

Free Running Frequency

fOSC

VCC = 12V

250

300

350

kHz

Ramp Amplitude

ΔVOSC

VCC = 12V

1.5

VP-P

To be continued

RT8105GS Datasheet(PDF) 4 Page - Richtek Technology Corporation

RT8105GS Datasheet(HTML) 4 Page - Richtek Technology Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

Datasheet Download

Link URL