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Power Sequencing Controllers

封装信息

CAD 模型: View CAD Model
Pkg. Type: QFN
Pkg. Code: LBF
Lead Count (#): 24
Pkg. Dimensions (mm): 3.99 x 3.99 x 0.90
Pitch (mm): 0.5

环境和出口类别

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
RoHS (ISL8723IRZ) 下载
ECCN (US)
HTS (US)

产品属性

Lead Count (#) 24
Carrier Type Tube
Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C) -40 to +85°C
Advanced Features Auto Restart, Low bias current sleep
Bias Voltage Range (V) 2.5 - 5.5
Enable Active High
Initial Startup Requirements 4 UVLO 1EN
Length (mm) 4
Logic Leval (s) TTL
MOQ 750
Monitored Channels for non-compliance 4 Gates
Monitored Inputs 4
Parametric Category Power Supply Sequencers
Pitch (mm) 0.5
Pkg. Dimensions (mm) 4.0 x 4.0 x 0.90
Pkg. Type QFN
Power Down Sequencing Yes
Preset Or Adjustable Sequence Adjustable ON & OFF Delay
Price (USD) $2.92499
Qualification Level Standard
Sequenced Output Control Charge Pumped 10μA FET Drive
Sequenced Voltages 5.5 - 5.5
Thickness (mm) 0.9
VBIAS (Max) (V) 5.5
VBIAS (Min) (V) 2.5
Width (mm) 4

描述

The Intersil ISL8723 and ISL8724 are 4 channel sequencers controlling the on and off sequence of voltages with undervoltage supply fault protection and a sequence completed signal (RESET). For larger systems, more than 4 voltages can be sequenced by a simple connection of multiple IC's. These sequencers use an integrated charge pump to drive 4 external low-cost N-channel MOSFET switch gates above the IC bias voltage by 5. 3V. These IC's can be biased from and control any supply from 2. 5V to 5V and additionally monitor any voltage above 0. 7V. Individual product descriptions follow. The four channel ISL8723 (ENABLE input), ISL8724 (ENABLE input) offer the designer 4 voltage control when it is required that all four rails are in minimal compliance prior to turn on and that compliance must be maintained during operation. The ISL8723 has a low power standby mode when it is disabled suitable for battery powered applications. External resistors provide flexible voltage threshold programming of monitored voltages. Delay and sequencing timing are programmable by external capacitors for both ramp up and ramp down.