Datasheet > ISL78840ASRH

ISL78840ASRH

更新时间： 2023-12-20 18:44:21

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
18页	949K
描述
Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Controller

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ISL78840ASRH 数据手册

DATASHEET

ISL78840ASxH, ISL78841ASxH, ISL78843ASxH, ISL78845ASxH, ISL738840ASEH,

ISL738841ASEH, ISL738843ASEH, ISL738845ASEH

Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Controller

The ISL78840ASEH, ISL78841ASEH, ISL78843ASEH,

Features

ISL78845ASEH, ISL78840ASRH, ISL78841ASRH,

ISL78843ASRH, ISL78845ASRH, ISL738840ASEH,

• Electrically screened to DLA SMD #5962-07249

• QML qualified per MIL-PRF-38535 requirements

• 1A MOSFET gate driver

ISL738841ASEH, ISL738843ASEH, ISL738845ASEH are high

performance, radiation hardened drop-in replacements for the

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

range of power conversion applications including boost,

flyback, and isolated output configurations. Fast signal

propagation and output switching characteristics make these

ideal products for existing and new designs.

• 90µA typical start-up current, 125µA maximum

• 35ns propagation delay current sense to output

• Fast transient response with peak current-mode control

• 9V to 13.2V operation

Features include up to 13.2V operation, low operating current,

90µA typical start-up current, adjustable operating frequency

to 1MHz and high peak current drive capability with 50ns rise

and fall times.

• Adjustable switching frequency to 1MHz

• 50ns rise and fall times with 1nF output load

• Trimmed timing capacitor discharge current for accurate

dead time/maximum duty cycle control

Applications

• Current mode switching power supplies

• Isolated buck and flyback regulators

• Boost regulators

• 1.5MHz bandwidth error amplifier

• Tight tolerance voltage reference over line, load, and

temperature

• ±3% current limit threshold

• Direction and speed control in motors

• Control of high current FET drivers

• Pb-free available (RoHS compliant)

• Radiation acceptance testing - ISL7884xASEH

- HDR (50-300rad(Si)/s): 100krad(Si)

- LDR (0.01rad(Si)/s): 50krad(Si)

• Radiation acceptance testing - ISL7884xASRH

- HDR (50-300rad(Si)/s): 100krad(Si)

• Radiation acceptance testing - ISL73884xASEH

- LDR (0.01rad(Si)/s): 50krad(Si)

TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS

RISING UVLO

MAXIMUM DUTY CYCLE

(%)

PART NUMBER

(V)

7.0

8.4

7.0

8.4

ISL78840ASxH

ISL78841ASxH

ISL78843ASxH

ISL78845ASxH

ISL738840ASEH

ISL738841ASEH

ISL738843ASEH

ISL738845ASEH

100

FN7952 Rev.4.01

May 5, 2022

Page 1 of 17

12 3 4 5 6 7...18

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与ISL78840ASRH相关器件

型号	品牌	描述	获取价格	数据表
ISL78840ASRH_10	INTERSIL	High Performance Industry Standard Single-Ended Current Mode PWM Controller	获取价格
ISL78840ASRHF/PROTO	INTERSIL	Radiation Hardened, High Performance IndustryStandard Single-Ended Current Mode PWM Contro	获取价格
ISL78840ASRHF/PROTO	RENESAS	1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, CDFP8, ROHS COMPLIANT, HERMETIC SEALE	获取价格
ISL78840ASRHVD	RENESAS	1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, CDIP8, ROHS COMPLIANT, HERMETIC SEALE	获取价格
ISL78840ASRHVX/SAMPLE	RENESAS	1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, UUC8, ROHS COMPLIANT, DIE-8	获取价格
ISL78840ASRHVX/SAMPLE	INTERSIL	Radiation Hardened, High Performance IndustryStandard Single-Ended Current Mode PWM Contro	获取价格

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