hs9-4080arh-q Intersil Corporation, hs9-4080arh-q Datasheet - Page 2

• Manufacturer Part Number: hs9-4080arh-q
• Description: Rad-hard Full Bridge N-channel Fet Driver
• Manufacturer: Intersil Corporation

HS-4080ARH Preliminary Pin Descriptions
NUMBER
PIN
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
6
8
5
7
9
SYMBOL
HDEL
LDEL
BHO
BHB
HEN
OUT
AHB
AHS
ALO
BLO
BHS
V
AHO
ALS
V
V
BLS
DIS
IN+
IN-
SS
CC
DD
B High-side Bootstrap supply. External bootstrap diode and capacitor are required. Connect cathode of boot-strap
diode and positive side of bootstrap capacitor to this pin. Internal charge pump supplies 50 A out of this pin to maintain
bootstrap supply. Internal circuitry clamps the bootstrap supply to approximately 15V.
High-side Enable input. Logic level input that when low overrides IN+/IN- (Pins 6 and 7) to put AHO and BHO drivers
(Pins 11 and 20) in low output state. When HEN is high AHO and BHO are controlled by IN+/IN- inputs. The pin can
be driven by signal levels of 0V to 18V (no greater than V
no connection is required if high-side and low-side outputs are to be controlled by IN+/IN -inputs.
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 18V (no
greater than V
Chip negative supply, generally will be ground.
OUTput of the input control comparator. This rail to rail output signal can be used for feedback and hysteresis.
Noninverting input of control comparator. This pin can only be driven by signal levels of 0V to 5.5V. If IN+ is greater
than IN- (Pin 7) then ALO and BHO are low level outputs and BLO and AHO are high level outputs. If IN+ is less than
IN- then ALO and BHO are high level outputs and BLO and AHO are low level outputs. DIS (Pin 3) high level will
override IN+/IN- control for all outputs. HEN (Pin 2) low level will override IN+/IN- control of AHO and BHO. When
switching in four quadrant mode, dead time in a half bridge leg is controlled by HDEL and LDEL (Pins 8 and 9).
Inverting input of control comparator. This pin can only be driven by signal levels of 0V to 5.5V. See IN+ (Pin 6)
description.
High-side turn-on DELay. Connect resistor from this pin to V
both high-side drivers. The low-side drivers turn-off with no adjustable delay, so the HDEL resistor guarantees no
shoot-through by delaying the turn-on of the high-side drivers. HDEL reference voltage is approximately 5.1V.
Low-side turn-on DELay. Connect resistor from this pin to V
both low-side drivers. The high-side drivers turn-off with no adjustable delay, so the LDEL resistor guarantees no shoot-
through by delaying the turn-on of the low-side drivers. LDEL reference voltage is approximately 5.1V.
A High-side Bootstrap supply. External bootstrap diode and capacitor are required. Connect cathode of boot-strap
diode and positive side of bootstrap capacitor to this pin. Internal charge pump supplies 30 A out of this pin to maintain
bootstrap supply. Internal circuitry clamps the bootstrap supply to approximately 15V.
A High-side Output. Connect to gate of A High-side power MOSFET.
A High-side Source connection. Connect to source of A High-side power MOSFET. Connect negative side of bootstrap
capacitor to this pin.
A Low-side Output. Connect to gate of A Low-side power MOSFET.
A Low-side Source connection. Connect to source of A Low-side power MOSFET.
Positive supply to gate drivers. Must be same potential as V
Positive supply to lower gate drivers. Must be same potential as V
B Low-side Source connection. Connect to source of B Low-side power MOSFET.
B Low-side Output. Connect to gate of B Low-side power MOSFET.
B High-side Source connection. Connect to source of B High-side power MOSFET. Connect negative side of bootstrap
capacitor to this pin.
B High-side Output. Connect to gate of B High-side power MOSFET.
2
DD
). An internal 100 A pull-up to V
HS-4080ARH
DD
DESCRIPTION
will hold DIS high if this pin is not driven.
DD
). An internal 100 A pull-up to V
DD
SS
SS
(Pin 16). Connect to anodes of two bootstrap diodes.
to set timing current that defines the turn-on delay of
to set timing current that defines the turn-on delay of
CC
(Pin 15). De-couple this pin to V
DD
will hold HEN high, so
SS
(Pin 4).