ISL2110 Datasheet, PDF (6/13 Pages) Intersil Corporation – 100V, 3A/4A Peak, High Frequency Half-Bridge Drivers

ISL2110, ISL2111
Pin Descriptions
SYMBOL
DESCRIPTION
V_DD
HB
HO
HS
HI
LI
V_SS
LO
NC
EPAD
Positive supply to lower gate driver. Bypass this pin to V_SS.
High-side bootstrap supply. External bootstrap capacitor is required. Connect positive side of bootstrap capacitor to this pin.
Bootstrap diode is on-chip.
High-side output. Connect to gate of high-side power MOSFET.
High-side source connection. Connect to source of high-side power MOSFET. Connect negative side of bootstrap capacitor to this
pin.
High-side input.
Low-side input.
Chip negative supply, which will generally be ground.
Low-side output. Connect to gate of low-side power MOSFET.
No Connect.
Exposed pad. Connect to ground or float. The EPAD is electrically isolated from all other pins.
Timing Diagrams
LI
HI, LI
HO, LO
t_HPLH ,
t_LPLH
t_HPHL,
t_LPHL
FIGURE 3. PROPAGATION DELAYS
Typical Performance Curves
10.0
T = -40°C
T = +25°C
1.0
0.1
10k
T = +125°C
T = +150°C
100k
FREQUENCY (Hz)
FIGURE 5. ISL2110 I_DD OPERATING CURRENT vs
FREQUENCY
1^.10³k
HI
LO
t_MON
HO
t_MOFF
FIGURE 4. DELAY MATCHING
10.0
T = -40°C
T = +25°C
1.0
T = +125°C
T = +150°C
0.1
10k
100k
FREQUENCY (Hz)
FIGURE 6. ISL2111 I_DD OPERATING CURRENT vs
FREQUENCY
1^.10³k
6
FN6295.6
March 8, 2012