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GM3321

Features: `1.0 A Totem Pole Output Driver`High Speed Oscillator (700 kHz max)`No Stability Compensation Required`Lossless Short Circuit Protection`VCC Monitor`2.0% Precision Reference`Programmable Soft Start`Wide Ambient Temperature Range: Industrial Grade: -40°C to 85°C Commercial Grade: 0°C to 7...

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SeekIC No. : 004354076 Detail

GM3321: Features: `1.0 A Totem Pole Output Driver`High Speed Oscillator (700 kHz max)`No Stability Compensation Required`Lossless Short Circuit Protection`VCC Monitor`2.0% Precision Reference`Programmable S...

GM3321 Data Sheet

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Part Number:
GM3321
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: 2024/11/23

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Product Details

Description



Features:

`1.0 A Totem Pole Output Driver
`High Speed Oscillator (700 kHz max)
`No Stability Compensation Required
`Lossless Short Circuit Protection
`VCC Monitor
`2.0% Precision Reference
`Programmable Soft Start
`Wide Ambient Temperature Range:
Industrial Grade: -40°C to 85°C
Commercial Grade: 0°C to 70°C


Application

·Set - Top Box
·DSL/ Cable Modem
·PC/ IA
·Auto PC
·TFT Monitor
·Battery Powered Portable Applications
·Distributed Power Systems
·Always On Power


Specifications

PARAMETER VALUE UNITS
Power Supply Voltage, VCC 20 V
Driver Supply Voltage, VC 20 V
Driver Output Voltage, VGATE 20 V
COSC, CS, VFB (Logic Pins) 6.0 V
Peak Output Current 1.0 A
Steady State Output Current 200 mA
Operating Junction Temperature, TJ 150 °C
Operating Temperature Range, TA -40 to +85 °C
Storage Temperature Range, TS -65 to +150 °C
ESD (Hunam Body Model) 2.0 kV
Lead Temperature Soldering :
Wave Solder:(through hole styles only) (Note 1)
Reflow (SMD styles only) (Note 2)		 260 Peak
230 Peak		 °C



Description

The GM3321 is a switching controller for use in DC-DC converters. It can be used in the buck topology with a minimum number of external components.

The GM3321 consists of a VCC monitor for controlling the state of the device, 1.0 A power driver for controlling the gate of a discrete P-channel transistor, fixed frequency oscillator, short circuit protection timer, programmable soft start, precision reference, fast output voltage monitoring comparator, and output stage driver logic with latch.

The high frequency oscillator of GM3321 allows the use of small inductors and output capacitors, minimizing PC board area and systems cost. The programmable soft start reduces current surges at start up. The short circuit protection timer significantly reduces the duty cycle to approximately 1/30 of its cycle during short circuit conditions.

The GM3321 is available in an 8 Lead SOP package.




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