ISL8841AMBZ-T datasheet, PDF - EEWORLD Datasheet

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ISL8841AMBZ-T: Descriptionswitching controllers cur mode pwm 50% DC 7 0V uvlo 8ld; Categorysemiconductor Other integrated circuit (IC); File Size299KB，15 Pages; ManufacturerIntersil ( Renesas ); Websitehttp://www.intersil.com/cda/home/; Environmental Compliance

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switching controllers cur mode pwm 50% DC 7 0V uvlo 8ld

ISL8841AMBZ-T Parametric

Parameter Name	Attribute value
Manufacture	Intersil
Product Category	Switching Controllers
RoHS	Yes
Number of Outputs	1
Switching Frequency	2000 kHz
Duty Cycle - Max	48 %
Output Curre	1 A
Maximum Operating Temperature	+ 125 C
Package / Case	SOIC-8 Narrow
Packaging	Reel
Minimum Operating Temperature	- 55 C
Factory Pack Quantity	2500

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ISL8840A, ISL8841A, ISL8842A,

ISL8843A, ISL8844A, ISL8845A

Data Sheet

April 18, 2007

FN6320.3

High Performance Industry Standard

Single-Ended Current Mode PWM

Controller

The ISL884xA is a high performance drop-in replacement for

the popular 28C4x and 18C4x PWM controllers suitable for a

wide range of power conversion applications including

boost, flyback, and isolated output configurations. Its fast

signal propagation and output switching characteristics

make this an ideal product for existing and new designs.

Features include 30V operation, low operating current, 90μA

start-up current, adjustable operating frequency to 2MHz,

and high peak current drive capability with 20ns rise and fall

times.

PART NUMBER

ISL8840A

ISL8841A

ISL8842A

ISL8843A

ISL8844A

ISL8845A

RISING UVLO

7.0

14.4V

8.4V

14.4V

8.4V

MAX. DUTY CYCLE

100%

50%

100%

50%

Features

• 1A MOSFET gate driver

• 90μA start-up current, 125μA maximum

• 35ns propagation delay current sense to output

• Fast transient response with peak current mode control

• 30V operation

• Adjustable switching frequency to 2MHz

• 20ns rise and fall times with 1nF output load

• Trimmed timing capacitor discharge current for accurate

deadtime/maximum duty cycle control

• 1.5MHz bandwidth error amplifier

• Tight tolerance voltage reference over line, load and

temperature

• ±3% current limit threshold

• Pb-free plus anneal available

and ELV, WEEE, RoHS

Compliant

Applications

• Telecom and datacom power

• Wireless base station power

• File server power

• Industrial power systems

• PC power supplies

• Isolated buck and flyback regulators

• Boost regulators

Pinout

ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A

(8 LD SOIC, MSOP)

TOP VIEW

COMP 1

FB 2

CS 3

RTCT 4

8 VREF

7 VDD

6 OUT

5 GND

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.

All other trademarks mentioned are the property of their respective owners.

ISL8841AMBZ-T Related Products

	ISL8841AMBZ-T	ISL8842AABZ-T	ISL8842AMUZ-T	ISL8840AABZ-T	ISL8844AMBZ-T	ISL8842AMBZ-T	ISL8845AMUZ-T	ISL8843AAUZ-T	ISL8843AMUZ-T	ISL8841AAUZ-T
Description	switching controllers cur mode pwm 50% DC 7 0V uvlo 8ld	switching controllers cur mode pwm 100% DC 14 4V uvlo 8ld	switching controllers cur mode pwm 100% DC 14 4V uvlo 8ld	switching controllers cur mode pwm 100% DC 7 0V uvlo 8ld	switching controllers cur mode pwm 50% DC 14 4V uvlo 8ld	switching controllers cur mode pwm 100% DC 14 4V uvlo 8ld	switching controllers cur mode pwm 50% DC 8 4V uvlo 8ld	switching controllers cur mode pwm 100% DC 8 4V uvlo 8ld osc	switching controllers cur mode pwm 100% DC 8 4V uvlo 8ld osc	switching controllers cur mode pwm 50% DC 7 0V uvlo 8ld
Manufacture	Intersil	Intersil	Intersil	Intersil	Intersil	Intersil	Intersil	Intersil	Intersil	Intersil
Product Category	Switching Controllers	Switching Controllers	Switching Controllers	Switching Controllers	Switching Controllers	Switching Controllers	Switching Controllers	Switching Controllers	Switching Controllers	Switching Controllers
RoHS	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Number of Outputs	1	1	1	1	1	1	1	1	1	1
Switching Frequency	2000 kHz	2000 kHz	2000 kHz	2000 kHz	2000 kHz	2000 kHz	2000 kHz	2000 kHz	2000 kHz	2000 kHz
Duty Cycle - Max	48 %	96 %	96 %	96 %	48 %	96 %	48 %	96 %	96 %	48 %
Output Curre	1 A	1 A	1 A	1 A	1 A	1 A	1 A	1 A	1 A	1 A
Maximum Operating Temperature	+ 125 C	+ 105 C	+ 125 C	+ 105 C	+ 125 C	+ 125 C	+ 125 C	+ 105 C	+ 125 C	+ 105 C
Package / Case	SOIC-8 Narrow	SOIC-8 Narrow	MSOP	SOIC-8 Narrow	SOIC-8 Narrow	SOIC-8 Narrow	MSOP	MSOP	MSOP	MSOP
Packaging	Reel	Reel	Reel	Reel	Reel	Reel	Reel	Reel	Reel	Reel
Minimum Operating Temperature	- 55 C	- 40 C	- 55 C	- 40 C	- 55 C	- 55 C	- 55 C	- 40 C	- 55 C	- 40 C
Factory Pack Quantity	2500	2500	2500	2500	2500	2500	2500	2500	2500	2500

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