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ISL8104 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ISL8104
部品説明 Synchronous Buck Pulse-Width Modulator (PWM) Controller
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 



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ISL8104 Datasheet, ISL8104 PDF,ピン配置, 機能
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Data Sheet
February 13, 2006
ISL8104
FN9257.0
Synchronous Buck Pulse-Width
Modulator (PWM) Controller
The ISL8104 is a high performance synchronous controller
for demanding DC/DC converter applications. It provides
overcurrent fault protection and is designed to safely start-up
into prebiased output loads.
The output voltage of the converter can be precisely
regulated to as low as 0.597V, with a maximum tolerance of
±1% over the commercial temperature range, and ±1.5%
over the industrial temperature range.
The ISL8104 provides simple, single feedback loop, voltage-
mode control with fast transient response. It includes a
triangle-wave oscillator that is adjustable from below 50kHz
to over 1.5MHz. Full (0% to 100%) PWM duty cycle support
is provided.
The error amplifier features a 15MHz gain-bandwidth
product and 6V/µs slew rate which enables high converter
bandwidth for fast transient performance.
The ISL8104's overcurrent protection monitors the current
by using the rDS(ON) of the upper MOSFET which eliminates
the need for a current sensing resistor.
Pinouts
ISL8104
(14 LD NARROW SOIC AND 16 LD QFN)
TOP VIEW
RT 1
OCSET 2
SS 3
COMP 4
FB 5
EN 6
GND 7
14 VCC
13 PVCC
12 LGATE
11 PGND
10 BOOT
9 UGATE
8 PHASE
16 15 14 13
SS 1
COMP 2
FB 3
EN 4
12 PVCC
11 LGATE
10 PGND
9 BOOT
5678
Features
• Operates from an +8V ±5% to +14V ±10% Input
• Excellent Output Voltage Regulation
- 0.597V Internal Reference
- ±1% Over the Commercial Temperature Range
- ±1.5% Over the Industrial Temperature Range
• Simple Single-Loop Control Design
- Voltage-Mode PWM Control
• Fast Transient Response
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Ratio
- Leading and Falling Edge Modulation
• Small Converter Size
- Constant Frequency Operation
- Oscillator Programmable from 50kHz to Over 1.5MHz
• 14V High Speed MOSFET Gate Drivers
- 2.0A Source/3A Sink at 14V Low Side Gate Drive
- 1.25A Source/2A Sink at 14V High Side Gate Drive
- Drives Two N-Channel MOSFETs
• Overcurrent Fault Monitor
- High-Side MOSFET’s rDS(ON) Sensing
- Reduced ~120ns Blanking Time
• Converter can Source and Sink Current
• Soft-Start Done and an External Reference Pin for
Tracking Applications are Available in the QFN Package
• Pin Compatible with ISL6522 and ISL6535
• Supports Start-Up into Prebiased Loads
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Test & Measurement Instruments
• Routers Switches
• Medical Instrumentation
• Industrial Applications
• Telecom/Datacom Applications
Ordering Information
PART #
(Note)
PART
TEMP.
PACKAGE PKG.
MARKING RANGE (°C) (Pb-free) DWG. #
ISL8104CBZ 8104CBZ
0 to 70 14 Ld SOIC
M14.15
ISL8104IBZ 8104IBZ
-40 to 85 14 Ld SOIC
M14.15
ISL8104CRZ 8104CRZ 0 to 70 16 Ld 4x4 QFN L16.4x4
ISL8104IRZ 8104IRZ -40 to 85 16 Ld 4x4 QFN L16.4x4
Add “-T” suffix for tape and reel.
NOTE: Intersil Pb-free plus anneal 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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

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