intersil ISL6700 DATA SHEET
®
www.BDTIC.com/Intersil
ISL6700
Data Sheet December 29, 2004 FN9077.6
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.
Ordering Information
PART
NUMBER
ISL6700IB -40 to 125 8 Ld SOIC M8.15
ISL6700IBZ
(See Note)
ISL6700IR -40 to 125 12 Ld 4x4 QFN L12.4x4
ISL6700IRZ
(See Note)
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.
TEMP. RANGE
(°C) PACKAGE PKG. DWG. #
-40 to 125 8 Ld SOIC
(Pb-free)
-40 to 125 12 Ld 4x4 QFN
(Pb-free)
M8.15
L12.4x4
Features
• Drives 2 N-Channel MOSFETs in Half-Bridge
Configuration
• Space Saving SO8 and Low R
QFN Packages
C-S
• 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
ISL6700IB (SOIC)
TOP VIEW
V
1
DD
HI
2
LI
3
V
4
SS
1
8
HB
HO
7
HS
6
LO
5
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
All other trademarks mentioned are the property of their respective owners.
ISL6700IR (QFN)
TOP VIEW
VDDNC
12
HI
1
SS
V
EPAD
NC
2
LI
3
NOTE: EPAD = Exposed PAD.
Copyright © Intersil Americas Inc. 2002-2004. All Rights Reserved.
11 10
564
NC
HB
LO
9
HO
NC
8
HS
7
Application Block Diagram
www.BDTIC.com/Intersil
ISL6700
PWM
CONTROLLER
Functional Block Diagram
+12V
V
DD
HI
LI
CONTROL
ISL6700
V
SS
DRIVE
HI
DRIVE
LO
HB
HO
HS
LO
+48V
REFERENCE
AND
ISOLATION
SECONDARY
CIRCUIT
HB
U/V
HI
LI
V
DD
V
SS
DETECTOR
UNDERVOLTAGE
EPAD (QFN PACKAGE ONLY)
LEVEL
SHIFT
TURN-ON
DELAY
HO
HS
LO
2
FN9077.6
December 29, 2004
+12V
www.BDTIC.com/Intersil
ISL6700
+48V
+12V
PWM
FIGURE 1. TWO-SWITCH FORWARD CONVERTER
PWM
ISL6700
+48V
ISL6700
SECONDARY
CIRCUIT
ISOLATION
SECONDARY
CIRCUIT
ISOLATION
FIGURE 2. FORWARD CONVERTER WITH AN ACTIVE CLAMP
3
FN9077.6
December 29, 2004
Loading...