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參數資料
| 型號： | ISL6550B |
| 廠商： | Intersil Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 500-mA Peak Step-Up, Step-Down, Inverting Switching Voltage Regulator 14-SOIC -40 to 85 |
| 中文描述： | 薩姆監督員和監測 |
| 文件頁數： | 1/11頁 |
| 文件大?。?/td> | 287K |
| 代理商： | ISL6550B |
1
FN9036.4
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.
Copyright Intersil Americas Inc. 2001, 2003-2005. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
ISL6550A, ISL6550C
SAM (Supervisor And Monitor)
The ISL6550 is a precision, flexible, VID-code-controlled
reference and voltage monitor for high-end microprocessor
and memory power supplies. It monitors various input
signals, and supervises the system (typically a DC/DC
converter) with its output signals. See the Block Diagram for
reference.
The ISL6550 includes a 5-bit DAC (Digital-to-Analog
Converter), which is programmed by the five VID inputs. The
voltage range of the BDAC (Buffered DAC output) is
determined by the DACHI and DACLO voltage levels, which
are externally adjustable through the R1, R2, R3 resistor
divider network. VREF5 is a precision-trimmed 5V reference,
and is used to set the voltage at the top of the resistor
divider.
Programmable window comparators monitor Overvoltage
(OV) and Undervoltage (UV) levels. The OVUVSEN input,
usually coming from the associated power converter device
is monitored and compared with BDAC; an error band is
established via the R4 and R5 resistor setting on the
OVUVTH pin. An optional external capacitor on the UVDLY
pin gives a programmable delay on the UV. A high gain
operational amplifier is available at pins VOPP, VOPM, and
VOPOUT; it can be used as a gain stage to permit
monitoring voltages that are different from the BDAC levels.
The PEN (Power supply ENable) input, driven from an open-
collector source, enables (when logic high) the external
converter output, via the PGOOD or START outputs (both
open-drain). They both basically indicate that the power
supply is enabled (PEN = high) and there are no fault
conditions. There are two logic options available, which
determine the START and PGOOD states; see the block
diagram or the Logic Options Table for more detail. The two
logic options are identified with a suffix letter A or C in the
ordering information.
Features
12V supply operation
5V reference output
5-bit digital-to-analog converter
Programmable DAC Range, within 0.8–5.0V
Programmable undervoltage and overvoltage thresholds,
and latched fault detection
Optional delayed undervoltage (programmable with
external capacitor)
Undervoltage lockout (power-on-reset)
Status Indicators (START, PGOOD)
Uncommitted operational amplifier
Compatible with ISL6551 full bridge controller
20 Lead SOIC and 20 lead QFN (5x5) packages
QFN Package:
- Compliant to JEDEC PUB95 MO-220
QFN - Quad Flat No Leads - Package Outline
- Near Chip Scale Package footprint, which improves
PCB efficiency and has a thinner profile
Applications
Power Supplies for High End Microprocessors and Servers
Can be paired with the ISL6551 FBC for a complete full-
bridge 48V-input converter, or used independently
Ordering Information
PART
NUMBER
TEMP. RANGE
(°C)
PACKAGE
PKG. DWG. #
ISL6550AIB
-40 to 85
20 Lead SOIC M20.3
ISL6550CIB
-40 to 85
20 Lead SOIC M20.3
ISL6550AIR
-40 to 85
20 Lead QFN
L20.5x5
ISL6550CIR
-40 to 85
20 Lead QFN
L20.5x5
NOTE: The same part numbers with a “-T” suffix are available as
Tape and Reel.
Data Sheet
January 18, 2005
ISL6550A NOT RECOMMENDED FOR NEW DESIGNS
1-888-INTERSIL or www.intersil.com/tsc
RECOMMENDED REPLACEMENT: ISL6550C
contact our Technical Support Center at
相關PDF資料 |
PDF描述 |
|---|---|
| ISL6550BIR | SAM Supervisor And Monitor |
| ISL6550C | 500-mA Peak Step-Up, Step-Down, Inverting Switching Voltage Regulator 14-SOIC -40 to 85 |
| ISL6550CIB | 500-mA Peak Step-Up, Step-Down, Inverting Switching Voltage Regulator 14-SOIC -40 to 85 |
| ISL6550CIR | SAM Supervisor And Monitor |
| ISL6551AR | ZVS Full Bridge PWM Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ISL6550CIR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ISL6551AB | 制造商:Rochester Electronics LLC 功能描述:FULL BRIDGE CONTROLLER - Bulk |
| ISL6551AB-T | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ISL6551ABZ | 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數:1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
| ISL6551ABZ-T | 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數:1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
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