ISL83202IPZ datasheet(6/12 Pages) RENESAS

6 / 12 page

ISL83202

FN6382 Rev.0.00

Page 6 of 12

December 20, 2006

Pin Descriptions

NUMBE

SYMBOL

DESCRIPTION

BHB

B High-side Bootstrap supply. External bootstrap diode and capacitor are required. Connect cathode of bootstrap diode

and positive side of bootstrap capacitor to this pin.

BHI

B High-side Input. Logic level input that controls BHO driver (Pin 16). BLI (Pin 3) high level input overrides BHI high level

input to prevent half-bridge shoot-through, see Truth Table. DIS (Pin 8) high level input overrides BHI high level input. The

pin can be driven by signal levels of 0V to 15V (no greater than VDD).

BLI

B Low-side Input. Logic level input that controls BLO driver (Pin 14). If BHI (Pin 2) is driven high or not connected externally

then BLI controls both BLO and BHO drivers, with dead time set by delay currents at DEL (Pin 5). DIS (Pin 8) high level

input overrides BLI high level input. The pin can be driven by signal levels of 0V to 15V (no greater than VDD).

ALI

A Low-side Input. Logic level input that controls ALO driver (Pin 13). If AHI (Pin 7) is driven high or not connected externally

then ALI controls both ALO and AHO drivers, with dead time set by delay currents at DEL (Pin 5). DIS (Pin 8) high level

input overrides ALI high level input. The pin can be driven by signal levels of 0V to 15V (no greater than VDD).

DEL

Turn-on DELay. Connect resistor from this pin to VSS to set timing current that defines the dead time between drivers. All

drivers turn-off with no adjustable delay, so the DEL resistor guarantees no shoot-through by delaying the turn-on of all

drivers. The voltage across the DEL resistor is approximately VDD -2V.

6VSS

Chip negative supply, generally will be ground.

AHI

A High-side Input. Logic level input that controls AHO driver (Pin 10). ALI (Pin 4) high level input overrides AHI high level

input to prevent half-bridge shoot-through, see Truth Table. DIS (Pin 8) high level input overrides AHI high level input. The

pin can be driven by signal levels of 0V to 15V (no greater than VDD).

DIS

DISable input. Logic level input that when taken high sets all four outputs low. DIS high overrides all other inputs. When

DIS is taken low the outputs are controlled by the other inputs. The pin can be driven by signal levels of 0V to 15V (no

greater than VDD).

AHB

A High-side Bootstrap supply. External bootstrap diode and capacitor are required. Connect cathode of bootstrap diode

and positive side of bootstrap capacitor to this pin.

AHO

A High-side Output. Connect to gate of A High-side power MOSFET.

AHS

A High-side Source connection. Connect to source of A High-side power MOSFET. Connect negative side of bootstrap

capacitor to this pin.

VDD

Positive supply to control logic and lower gate drivers. De-couple this pin to VSS (Pin 6).

ALO

A Low-side Output. Connect to gate of A Low-side power MOSFET.

BLO

B Low-side Output. Connect to gate of B Low-side power MOSFET.

BHS

B High-side Source connection. Connect to source of B High-side power MOSFET. Connect negative side of bootstrap

capacitor to this pin.

BHO

B High-side Output. Connect to gate of B High-side power MOSFET.

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