Datasheet > ISL6550BIB-T

ISL6550BIB-T

更新时间： 2024-09-22 23:59:51

品牌	Logo	应用领域
其他 - ETC		模拟IC 光电二极管
页数	文件大小	规格书
11页	521K
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Analog IC

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ISL6550BIB-T 数据手册

ISL6550A, ISL6550B, ISL6550C

Data Sheet

November 2001

File Number 9036.1

SAM (Supervisor And Monitor)

Features

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.

• 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

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.

• 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 pin SOIC and 20 lead MLFP (5x5) packages

Programmable window comparators monitor Over-Voltage

(OV) and Under-Voltage (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

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

monitoring voltages that are different from the BDAC levels.

Ordering Information

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 three logic options available, which

determine the START and PGOOD states; see the block

diagram or the Logic Options Table for more detail.The three

logic options are identiﬁed with a sufﬁx letter A, B, or C in the

ordering information.

PART

NUMBER

TEMP. RANGE

( C)

PACKAGE

PKG. NO.

ISL6550AIB

-40 to 85

20 Lead SOIC M20.3

20 Lead MLFP L20.5x5

ISL6550BIB

ISL6550CIB

ISL6550AIR

ISL6550BIR

ISL6550CIR

NOTE: The same part numbers with a “-T” sufﬁx are available as

Tape and Reel.

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 trademark of Intersil Americas Inc.

12 3 4 5 6 7...11

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与ISL6550BIB-T相关器件

型号	品牌	获取价格	描述	数据表
ISL6550BIR	INTERSIL	获取价格	SAM Supervisor And Monitor
ISL6550BIR-T	ETC	获取价格	Analog IC
ISL6550C	INTERSIL	获取价格	SAM Supervisor And Monitor
ISL6550CIB	INTERSIL	获取价格	SAM Supervisor And Monitor
ISL6550CIB-T	ETC	获取价格	Analog IC
ISL6550CIR	INTERSIL	获取价格	SAM Supervisor And Monitor
ISL6550CIR-T	ETC	获取价格	Analog IC
ISL6551	INTERSIL	获取价格	ZVS Full Bridge PWM Controller
ISL6551_06	INTERSIL	获取价格	ZVS Full Bridge PWM Controller
ISL6551AB	INTERSIL	获取价格	ZVS Full Bridge PWM Controller

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