Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

MAX5077AUD Datasheet(PDF) 6 Page - Maxim Integrated Products

Part # MAX5077AUD
Description  Push-Pull FET Driver with Integrated Oscillator and Programmable Clock Output
Download  9 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX5077AUD Datasheet(HTML) 6 Page - Maxim Integrated Products

  MAX5077AUD Datasheet HTML 1Page - Maxim Integrated Products MAX5077AUD Datasheet HTML 2Page - Maxim Integrated Products MAX5077AUD Datasheet HTML 3Page - Maxim Integrated Products MAX5077AUD Datasheet HTML 4Page - Maxim Integrated Products MAX5077AUD Datasheet HTML 5Page - Maxim Integrated Products MAX5077AUD Datasheet HTML 6Page - Maxim Integrated Products MAX5077AUD Datasheet HTML 7Page - Maxim Integrated Products MAX5077AUD Datasheet HTML 8Page - Maxim Integrated Products MAX5077AUD Datasheet HTML 9Page - Maxim Integrated Products  
Zoom Inzoom in Zoom Outzoom out
 6 / 9 page
background image
Push-Pull FET Driver with Integrated Oscillator
and Programmable Clock Output
6
_______________________________________________________________________________________
Detailed Description
The MAX5077 is a +4.5V to +15V push-pull, current-fed
topology driver subsystem with an integrated oscillator
for use in 48V module power supplies.
The MAX5077 features a programmable accurate inte-
grated oscillator with a synchronizing clock output that
can be used to synchronize an external PWM stage. A
single external resistor programs the internal oscillator
frequency from 50kHz to 1.5MHz.
The MAX5077 incorporates dual MOSFET drivers with
±3A peak drive currents and a 50% duty cycle. The
MOSFET drivers generate complementary signals to
drive external ground-referenced n-channel MOSFETs.
The MAX5077 CLK output frequency is programmable
through logic inputs that set the fCLK:NDRV_ ratio to 1x,
2x, or 4x.
Internal Oscillator
An external resistor at RT programs the MAX5077’s
internal oscillator frequency from 50kHz to 1.5MHz. The
MAX5077 NDRV1 and NDRV2 switching frequencies
are one-half or one-fourth the programmed oscillator
frequency with a nominal 50% duty cycle.
Use the following formula to calculate the internal oscil-
lator frequency:
where fOSC is the oscillator frequency and RRT is a
resistor connected from RT to AGND in ohms.
Place a 1nF capacitor from RT to AGND for stability
and to filter out noise.
When the fCLK:fNDRV_ ratio is set to 4, the NDRV1 and
NDRV2 switching frequency is limited to one-fourth
fOSC. When operating the MAX5077 with the
fCLK:fNDRV_ ratios set to 1 or 2 (see the Synchronizing
Clock Output section), the NDRV1 and NDRV2 switch-
ing frequency is set to one-half fOSC.
Synchronizing Clock Output
The MAX5077 provides a buffered clock output that can
be used to synchronize the oscillator input of a PWM
controller. CLK is powered from an internal 5V regulator
and sources/sinks up to 10mA. Two logic inputs (SEL2,
SEL1) select CLK output frequency to 1x, 2x, or 4x with
respect to NDRV1 and NDRV2 switching frequency (see
Table 1 and Figure 2). Drive SEL2 and SEL1 low to
disable NDRV1, NDRV2, and CLK outputs. There is a
typical 30ns delay from CLK to NDRV_ output.
f
R
OSC
RT
=
×
10
32
12
Table 1. CLK Output Frequency Selection
SEL2
SEL1
fCLK
fNRDV_
fCLK to fNDRV
RATIO
Low
Low
NDRV1, NDRV2, and CLK disabled
Low
High
fOSC / 2
fOSC / 2
1
High
Low
fOSC
fOSC / 2
2
High
High
fOSC
fOSC / 4
4
NDRV1
NDRV1
NDRV2
CLK
OSC
NDRV1
NDRV2
CLK
OSC
NDRV1
NDRV2
CLK
OSC
NDRV2
CLK
SEL2 = 0, SEL1 = 0
SEL2 = 0, SEL1 = 1
SEL2 = 1, SEL1 = 0
SEL2 = 1, SEL1 = 1
OSC
Figure 2. MAX5077 CLK Timing Diagram


Similar Part No. - MAX5077AUD

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
MAX5077AUD MAXIM-MAX5077AUD Datasheet
235Kb / 9P
   Push-Pull FET Driver with Integrated Oscillator and Programmable Clock Output
2007
More results

Similar Description - MAX5077AUD

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
MAX5077 MAXIM-MAX5077_V01 Datasheet
235Kb / 9P
   Push-Pull FET Driver with Integrated Oscillator and Programmable Clock Output
2007
MAX5075 MAXIM-MAX5075 Datasheet
234Kb / 8P
   Push-Pull FET Driver with Integrated Oscillator and Clock Output
Rev 0; 5/05
MAX5075 MAXIM-MAX5075_07 Datasheet
223Kb / 8P
   Push-Pull FET Driver with Integrated Oscillator and Clock Output
Rev 1; 5/07
logo
Renesas Technology Corp
EL6208 RENESAS-EL6208 Datasheet
638Kb / 11P
   Dual Push-Pull Laser Driver Oscillator
August 10, 2007
logo
Intersil Corporation
EL6208 INTERSIL-EL6208_07 Datasheet
233Kb / 11P
   Dual Push-Pull Laser Driver Oscillator
EL6208 INTERSIL-EL6208 Datasheet
724Kb / 10P
   Dual Push-Pull Laser Driver Oscillator
logo
NTE Electronics
NTE1749 NTE-NTE1749 Datasheet
25Kb / 3P
   Integrated Circuit Push-Pull Four Channel Driver
logo
Texas Instruments
LMV7235 TI1-LMV7235 Datasheet
1Mb / 30P
[Old version datasheet]   Open-Drain and Push-Pull Output
logo
Maxim Integrated Produc...
DS1810 MAXIM-DS1810 Datasheet
122Kb / 5P
   5V EconoReset with Push-Pull Output
041002
DS1815 MAXIM-DS1815 Datasheet
121Kb / 5P
   3.3V EconoReset with Push-Pull Output
041002
More results


Html Pages

1 2 3 4 5 6 7 8 9


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com