1
®
ISL6700
80V/1.25A Peak, Medium Frequency, Low
Cost, Half-Bridge Driver
The ISL6700 is an 80V/1.25A peak, medium frequency, low
cost, half-bridge driver IC available in 8-lead SOIC and
12-lead QFN plastic packages. The low-side and high-side
gate drivers are independently controlled and matched to
25ns. This gives the user maximum flexibility in dead-time
selection and driver protocol. Undervoltage protection on
both the low-side and high-side supplies force the outputs
low. Non-latching, level-shift translation is used to control the
upper drive circuit. Unlike some competitors, the high-side
output returns to its correct state after a momentary
undervoltage of the high-side supply.
Features
• Drives 2 N-Channel MOSFETs in Half-Bridge
Configuration
• Space Saving SO8 and Low R
C-S
QFN Packages
• Phase Supply Max Voltage to 80VDC
• Bootstrap Supply Max Voltage to 96VDC
• Drives 1000pF Load with Rise and Fall Times Typ. 15ns
• TTL/CMOS Compatible Input Thresholds
• Independent Inputs for Non-Half-Bridge Topologies
• No Start-Up Problems
• Low Power Consumption
• Wide Supply Range
• Supply Undervoltage Protection
• QFN Package
- Compliant to JEDEC PUB95 MO-220 QFN
- Quad Flat No Leads - Package Outline
• Pb-Free Available (RoHS Compliant)
Applications
• Telecom/Datacom Power Supplies
• Half-Bridge Converters
• Two-Switch Forward Converters
• Active Clamp Forward Converters
Pinouts
Ordering Information
PART
NUMBER
TEMP. RANGE
(°C) PACKAGE PKG. DWG. #
ISL6700IB -40 to 125 8 Ld SOIC M8.15
ISL6700IBZ
(See Note)
-40 to 125 8 Ld SOIC
(Pb-free)
M8.15
ISL6700IR -40 to 125 12 Ld 4x4 QFN L12.4x4
ISL6700IRZ
(See Note)
-40 to 125 12 Ld 4x4 QFN
(Pb-free)
L12.4x4
Add “-T” suffix to part number for tape and reel packaging.
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which are 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.
ISL6700IB (SOIC)
TOP VIEW
ISL6700IR (QFN)
TOP VIEW
NOTE: EPAD = Exposed PAD.
5
6
8
7
4
3
2
1
V
DD
HI
LI
V
SS
HB
HS
LO
HO
11 10
V
DD
NC
HB
12
564
1
2
3
9
8
7
V
SS
NC
LO
HO
NC
HS
HI
NC
LI
EPAD
Data Sheet December 29, 2004 FN9077.6
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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