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Si9913

Features: · 4.5- to 5.5-V Operation· Undervoltage Lockout· 250-kHz to 1-MHz Switching Frequency· Synchronous Switch Enable· One Input PWM Signal Generates Both Drive· Bootstrapped High-Side Drive· Operates from 4.5- to 30-V Supply· TTL/CMOS Compatible Input Levels· 1-A Peak Drive CurrentApplicatio...

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SeekIC No. : 004490983 Detail

Si9913: Features: · 4.5- to 5.5-V Operation· Undervoltage Lockout· 250-kHz to 1-MHz Switching Frequency· Synchronous Switch Enable· One Input PWM Signal Generates Both Drive· Bootstrapped High-Side Drive· O...

Si9913 Data Sheet

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Part Number:
Si9913
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/26

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Product Details

Description



Features:

· 4.5- to 5.5-V Operation
· Undervoltage Lockout
· 250-kHz to 1-MHz Switching Frequency
· Synchronous Switch Enable
· One Input PWM Signal Generates Both Drive
· Bootstrapped High-Side Drive
· Operates from 4.5- to 30-V Supply
· TTL/CMOS Compatible Input Levels
· 1-A Peak Drive Current




Application

· Multiphase Desktop CPU Supplies
· Single-Supply Synchronous Buck Converters
· Mobile Computing CPU Core Power Converters
· Standard-to-Synchronous Converter Adaptations
· High Frequency Switching Converters




Pinout

Connection Diagram




Specifications

Parameter Symbol Limit Unit
Low Side Driver Supply Voltage VDD 7.0 V
Input Voltage on IN VIN 0.3 to VDD +0.3
Synchronous Pin Voltage VSYN 0.3 to VDD +0.3
Bootstrap Voltage VBOOT 35.0
High Side Driver (Bootstrap) Supply Voltage VBOOT VS 7.0
Operating Junction Temperature Range TJ 40 to 125
Storage Temperature Range Tstg 40 to 150
Power Dissipation (Note a and b) PD 830 mW
Thermal Impedance JA 125 /W
Lead Temperature (soldering 10 Sec) Sec 300

Notes
a. Device mounted with all leads soldered to P.C. Board
b. Derate 8.3 W/ above 25




Description

The Si9913 is a dual MOSFET high-speed driver with break-before-make. It is designed to operate in high frequency dc-dc switchmode power supplies. The high-side driver is bootstrapped to handle the high voltage slew rate associated with "floating" high-side gate drivers. Each driver is capable of switching a 3000-pF load with 60-ns propogation delay and 25-ns transition time. The Si9913 comes with internal break-before-make feature to prevent shoot-through current in the external MOSFETs. A syschronous enable pin is used to enable the low-side driver. When disabled, the OUTL is logic low.

The Si9913 is available in an 8-pin SOIC package for operation over the industrial operation range (40 to 85).






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