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瑞萨电子 (Renesas Electronics Corporation)
Radiation Tolerant Double-Ended PWM Controller with Synchronous Rectification

封装信息

CAD 模型:View CAD Model
Pkg. Type:TQFP-EP
Pkg. Code:QNS
Lead Count (#):64
Pkg. Dimensions (mm):10.0 x 10.0 x 1.00
Pitch (mm):0.5

环境和出口类别

ECCN (US)EAR99
HTS (US)8542.39.0090
Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes

产品属性

Pkg. TypeTQFP-EP
Pkg. Dimensions (mm)10.0 x 10.0 x 1.00
TID LDR (krad(Si))30
Qualification LevelRadiation Tolerant Plastic
Temp. Range (°C)-55 to +125°C
CAGE code34371
Carrier TypeReel
Control ModeVoltage, Peak Current Mode
DSEE (MeV·cm2/mg)43
Die Sale Availability?No
FlowRT Plastic
Lead Count (#)64
Length (mm)10
MOQ250
Moisture Sensitivity Level (MSL)3
No-Load Operating Current7.3 mA
PROTO Availability?No
Pb (Lead) FreeYes
Pb Free CategoryNickel/Palladium/Gold-Silver - e4
Phases (Max)2
Pitch (mm)0.5
Quiescent Current7µA
RatingSpace
Supply Voltage (max) (V)20 - 20
Supply Voltage (min) (V)4.5 - 4.5
Switching Frequency (max) (kHz)2000kHz
Switching Frequency (min) (kHz)20kHz
Thickness (mm)1
TopologyBoost, Flyback, Forward, Full Bridge, Half Bridge, Push-Pull
VREF (V)0.6
VREF OutputYes
Width (mm)10

描述

The ISL73846M is a radiation tolerant double-ended PWM controller with synchronous rectification, designed for high-frequency switching power supplies in both voltage mode and current mode control configurations.

It features independent supply rails for the control circuitry and driver output stage. The driver stage supply is configurable from 4.5V to 20V, enabling direct drive of GaN FETs or MOSFETs for maximum design flexibility.

The ISL73846M supports current sharing and synchronization to either an internal or external clock. It natively enables two-phase operation without additional ICs, while higher phase counts can be achieved using the ISL74420M.

For greater design flexibility, the ISL73846M allows engineers to utilize the internal error amplifier or configure it as a buffer for use with an external error amplifier, enabling custom feedback loops.

The ISL73846M is available in a 64-lead EP-TQFP package and is fully specified across a temperature range of -55°C to +125°C.