Conceptual

CS902-A-R

www.richtek.com

June 13, 2013

7

Absolute Maximum Ratings (Note 1)



EN, AVIN, VINB1, LXI, LXO, POS, NEG, OP_OUT to PGND --------------------------------------- 



−0.3 to 24V



POS to NEG ------------------------------------------------------------------------------------------------------ 



−0.3 to 10V



LX to PGND ------------------------------------------------------------------------------------------------------ 



−0.3 to 24V



VL, NTC, COMP, SDA, SCL, A1, A0, HVS, OUTB1, to PGND -------------------------------------- 



−0.3 to 6V



LXB1 to PGND --------------------------------------------------------------------------------------------------- 0.3 to (VINBx+0.3V)



BOOT1 to LXB1 ------------------------------------------------------------------------------------------------- 



−0.3 to 6V



DRVN to PGND -------------------------------------------------------------------------------------------------- 

−0.3 to 6V

VGHM, RE, DRVP to PGND ---------------------------------------------------------------------------------- 



−0.3 to +40V



VGL to VL --------------------------------------------------------------------------------------------------------- 



−24V to +0.3V



PGND to AGND ---------------------------------------------------------------------------------------------------- ±0.3V



PGND to AGND -----------------------------------------------------------------------------------------------------

±0.3V

Power Dissipation, PD @ TA = 25

°C

VQFN-40L 6x6 ------------------------------------------------------------------------------------------------------ 3.2W

Package Thermal Resistance (Note 2)

VQFN-40L 6x6,

θJA ------------------------------------------------------------------------------------------------- 32.5°C/W

VQFN-40L 6x6,

θJC ------------------------------------------------------------------------------------------------ 6.5°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 Model) --------------------------------------------------------------------------------------- 2kV

MM (Machine Model) ---------------------------------------------------------------------------------------------- 200V

Recommended Operating Conditions (Note 3)

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

−40°C to 125°C

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

−40°C to 85°

Electrical Characteristics

(Typical values VIN=12V, EN=high, VAVDD=16V, Buck1(VI/O)=3.3V, VGH=26V, VGL=-5V with typical values TA = 25  C, unless

otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

SUPPLY CURRENT

Input Voltage Range

VIN

8

14

V

Quiescent Current into AVIN

LX, LXB1 switching

7

Quiescent Current into VINB1

IQIN

LX, LXB1 not switching

0.2

mA

Under-Voltage Lockout

Threshold

VUVLO

VIN falling, hysteresis 400mV

6.8

V