RT9605A datasheet(4/12 Pages) RICHTEK

Part #	RT9605A

Description	Triple-Channel Synchronous-Rectified Buck MOSFET Driver

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Manufacturer	RICHTEK [Richtek Technology Corporation]

Direct Link	http://www.richtek.com

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RT9605A

Preliminary

4

DS9605A-05 August 2007

www.richtek.com

All brandname or trademark belong to their owner respectively

Absolute Maximum Ratings

(Note 1)

Supply Voltage, PVCC ----------------------------------------------------------------------------------- 15V

Supply Voltage, VDD ------------------------------------------------------------------------------------- 7V

PHASE to GND

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

−5V to 15V

< 200ns -----------------------------------------------------------------------------------------------------

−10V to 30V

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

BOOT to GND

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

−0.3V to VCC+15V

< 200ns -----------------------------------------------------------------------------------------------------

−0.3V to 42V

PHASE to GND -------------------------------------------------------------------------------------------

−4V to 15V

PWM Input Voltage -------------------------------------------------------------------------------------- GND - 0.3V to 7V

UGATE ------------------------------------------------------------------------------------------------------ VPHASE - 0.3V to VBOOT + 0.3V

LGATE ------------------------------------------------------------------------------------------------------ GND - 0.3V to VPVCC + 0.3V

Package Thermal Resistance (Note 4)

VQFN-24L 4x4,

θJA -------------------------------------------------------------------------------------- 67°C/W

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

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

−40°C to 150°C

ESD Susceptibility (Note 2)

HBM (Human Body Mode) ----------------------------------------------------------------------------- 1kV

MM (Machine Mode) ------------------------------------------------------------------------------------- 100V

Electrical Characteristics

Recommended Operating Conditions

(Note 3)

Supply Voltage, VDD ------------------------------------------------------------------------------------- 12V ±10%

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

Junction Temperature Range --------------------------------------------------------------------------- 0° C to 125° C

(Recommended Operating Conditions, TA = 25

°C unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

VDD Supply Current

Operation Current

IVDD

Frequency = 250kHz

--

10

mA

Power-On Reset

POR Threshold

PVCCRTH

PVCC Rising

6

6.5

7.5

V

Hysteresis

PVCCHYS

--

0.15

--

V

PWM Input

Input Current

IPWM

VPWM_IN = 0V or 5V

200

300

500

μA

Floating Voltage

VPWMFL

PVCC = 12V

1.8

2.2

2.6

V

VPWMRTH

PWM_IN Rising

3.3

3.7

4.3

V

PWM Threshold

VPWMFTH

PWM_IN Falling

1.0

1.38

1.5

V

To be continued

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