DATASHEET
ISL89400, ISL89401
FN6614
Rev 3.00
December 4, 2015
100V, 1.25A Peak, High Frequency Half-Bridge Drivers
The ISL89400, ISL89401 are 100V, high frequency, half-bridge
N-Channel power MOSFET driver ICs. They are based on the
popular HIP2100, HIP2101 half-bridge drivers, but offer
several performance improvements. The ISL89400 has
additional input hysteresis for superior operation in noisy
environments and the inputs of the ISL89401 (like those of the
ISL89400) can now safely swing to the VDD supply rail. Finally,
both parts are available in a very compact 9 Ld DFN package
and an 8 Ld SOIC to minimize the required PCB footprint.
Features
Applications
• On-chip 1Ω bootstrap diode
• Drives N-channel MOSFET half-bridge
• Space saving DFN package
• DFN package compliant with 100V conductor spacing
guidelines per IPC-2221
• Pb-free (RoHS compliant)
• Bootstrap supply maximum voltage to 114VDC
• Telecom half-bridge converters
• Fast propagation times for multi-MHz circuits
• Telecom full-bridge converters
• Drives 1nF load with typical rise/fall times of 16ns
• Two-switch forward converters
• CMOS compatible input thresholds (ISL89400)
• Active-clamp forward converters
• 3.3V/TTL compatible input thresholds (ISL89401)
• Class-D audio amplifiers
• Independent inputs provide flexibility
• No start-up problems
• Outputs unaffected by supply glitches, HS ringing below
ground or HS slewing at high dV/dt
TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS
PART NUMBER
INPUT THRESHOLDS
ISL89400
CMOS Compatible
ISL89401
3.3V/TTL Compatible
• Low power consumption
• Wide supply voltage range (9V to 14V)
• Supply undervoltage protection
• 4.0Ω typical output pull-up/pull-down resistance
Application Block Diagram
+12V
+100V
SECONDARY
CIRCUIT
VDD
HB
DRIVE
HI
PWM
CONTROLLER
LI
CONTROL
HI
HO
HS
DRIVE
LO
ISL89400
ISL89401
VSS
LO
REFERENCE
AND
ISOLATION
FIGURE 1. APPLICATION BLOCK DIAGRAM
FN6614 Rev 3.00
December 4, 2015
Page 1 of 12
ISL89400, ISL89401
Ordering Information
PART NUMBER
(Notes 3, 4)
PART
MARKING
TEMP. RANGE
(°C)
PACKAGE
(RoHS Compliant)
PKG.
DWG. #
ISL89400AR3Z (Note 1)
9400
-40 to +125
9 Ld 3x3 DFN
L9.3x3
ISL89401AR3Z (Note 1)
9401
-40 to +125
9 Ld 3x3 DFN
L9.3x3
ISL89400ABZ (Note 2)
89400 ABZ
-40 to +125
8 Ld SOIC
M8.15
ISL89401ABZ (Note 2)
89401 ABZ
-40 to +125
8 Ld SOIC
M8.15
NOTES:
1. Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. Add “-T” suffix for 2.5k unit or add “-TK” suffix for 1k unit tape and reel. Please refer to TB347 for details on reel specifications.
3. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
4. For Moisture Sensitivity Level (MSL), please see product information page for ISL89400, ISL89401. For more information on MSL, please see tech
brief TB363.
Pin Configurations
ISL89400, ISL89401
(9 LD DFN)
TOP VIEW
ISL89400, ISL89401
(8 LD SOIC)
TOP VIEW
VDD
1
8
LO
HB
2
7
VSS
HO
3
6
LI
HS
4
5
HI
VDD
9 LO
1
8 VSS
HB
2
HO
3
6 HI
HS
4
5 NC
EPAD
7 LI
NOTE: EPAD = Exposed PAD.
Pin Descriptions
SYMBOL
DESCRIPTION
VDD
Positive supply to lower gate driver. Bypass this pin to VSS.
HB
High-side bootstrap supply. External bootstrap capacitor is required. Connect positive side of bootstrap capacitor to this pin. Bootstrap
diode is on-chip.
HO
High-side output. Connect to gate of high-side power MOSFET.
HS
High-side source connection. Connect to source of high-side power MOSFET. Connect negative side of bootstrap capacitor to this pin.
HI
High-side input.
LI
Low-side input.
VSS
Chip negative supply, which will generally be ground.
LO
Low-side output. Connect to gate of low-side power MOSFET.
NC
No connect.
EPAD
Exposed pad. Connect to ground or float. The EPAD is electrically isolated from all other pins.
FN6614 Rev 3.00
December 4, 2015
Page 2 of 12
ISL89400, ISL89401
Functional Block Diagram
HB
VDD
UNDERVOLTAGE
HO
LEVEL SHIFT
DRIVER
HS
HI
ISL89401
UNDERVOLTAGE
LO
ISL89401
DRIVER
LI
VSS
EPAD (DFN PACKAGE ONLY)
*EPAD = EXPOSED PAD. THE EPAD IS ELECTRICALLY ISOLATED FROM ALL OTHER
PINS. FOR BEST THERMAL PERFORMANCE, CONNECT THE EPAD TO THE PCB
POWER GROUND PLANE.
FIGURE 2. FUNCTIONAL BLOCK DIAGRAM
FN6614 Rev 3.00
December 4, 2015
Page 3 of 12
ISL89400, ISL89401
+48V
+12V
SECONDARY
CIRCUIT
ISL89400
ISL89401
PWM
ISOLATION
FIGURE 3. TWO-SWITCH FORWARD CONVERTER
+48V
SECONDARY
CIRCUIT
+12V
PWM
ISL89400
ISL89401
ISOLATION
FIGURE 4. FORWARD CONVERTER WITH AN ACTIVE-CLAMP
FN6614 Rev 3.00
December 4, 2015
Page 4 of 12
ISL89400, ISL89401
Absolute Maximum Ratings
Thermal Information
Supply Voltage, VDD, VHB - VHS (Note 6). . . . . . . . . . . . . . . . . . -0.3V to 18V
LI and HI Voltages (Note 6) . . . . . . . . . . . . . . . . . . . . . . -0.3V to VDD + 0.3V
Voltage on LO (Note 6) . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VDD + 0.3V
Voltage on HO (Note 6) . . . . . . . . . . . . . . . . . . . . . VHS - 0.3V to VHB + 0.3V
Voltage on HS (Continuous) (Note 6) . . . . . . . . . . . . . . . . . . . . . -1V to 110V
Voltage on HB (Note 6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118V
Average Current in VDD to HB Diode . . . . . . . . . . . . . . . . . . . . . . . . . 100mA
Thermal Resistance (Typical)
JA (°C/W) JC (°C/W)
9 Ld DFN (Notes 7, 9). . . . . . . . . . . . . . . . . .
55
3.5
8 Ld SOIC (Note 8, 10) . . . . . . . . . . . . . . . . .
107
50
Max Power Dissipation at +25°C in Free Air (Note 7). . . . . . . . . . . . . . 2.27W
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .see link TB493
Maximum Recommended Operating
Conditions
Supply Voltage, VDD (Note 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V to 14V
Voltage on HS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1V to 100V
Voltage on HS . . . . . . . . . . . . . . . . . . . . . .(Repetitive Transient) -5V to 105V
Voltage on HB . . . . . . . . . VHS + 8V to VHS + 14V and VDD - 1V to VDD + 100V
HS Slew Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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