參數(shù)資料
型號： MAX5069B
廠商： Maxim Integrated Products, Inc.
英文描述： High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers
中文描述： 高頻率，電流模式PWM控制器，具有精確的振蕩器和雙FET驅(qū)動器
文件頁數(shù)： 1/19頁
文件大?。?/td> 236K
代理商： MAX5069B
General Desc ription
The MAX5069 is a high-frequency, current-mode,
pulse-width modulation (PWM) controller (with dual
MOSFET drivers) that integrates all the building blocks
necessary for implementing AC-DC or DC-DC fixed-fre-
quency power supplies. Isolated or nonisolated push-
pull and half/full-bridge power supplies are easily
constructed using either primary- or secondary-side
regulation. Current-mode control with leading-edge
blanking simplifies control-loop design and a program-
mable internal slope-compensation circuit stabilizes the
current loop when operating at duty cycles above 50%.
An input undervoltage lockout (UVLO) programs the
input-supply startup voltage and ensures proper opera-
tion during brownout conditions.
A single external resistor programs the oscillator frequen-
cy from 50kHz to 2.5MHz. The MAX5069A/D provide a
SYNC input for synchronization to an external clock. The
maximum FET-driver duty cycle for the MAX5069 is 50%.
Programmable dead time allows additional flexibility in
optimizing magnetic design and overcoming parasitic
effects. Programmable hiccup current limit provides
additional protection under severe faults.
The MAX5069 is specified over the -40°C to +125°C auto-
motive temperature range and is available in a
16-pin thermally enhanced TSSOP-EP package. Refer to
the MAX5068 data sheet for single FET-driver applications.
Warning:
The MAX5069 is designed to work with high
voltages. Exercise caution.
Applic ations
Universal-Input AC Power Supplies
Isolated Telecom Power Supplies
Networking System Power Supplies
Server Power Supplies
Industrial Power Conversion
Features
Current-Mode Control with 47μA (typ) Startup
Current
Oscillator Frequency Programmable to 2.5MHz
Resistor-Programmable ±4.5% Accurate
Switching Frequency
Dual Gate-Drive Output for Half/Full-Bridge or
Push-Pull Applications
Rectified 85VAC to 265VAC, or 36VDC to 72VDC
Input (MAX5069A/B)
Input Directly Driven from 10.8V to 24V
(MAX5069C/D)
Programmable Dead Time and Slope
Compensation
Programmable Startup Voltage (UVLO)
Programmable UVLO Hysteresis (MAX5069B/C)
Frequency Synchronization Input (MAX5069A/D)
-40°C to +125°C Automotive Temperature Range
16-Pin Thermally Enhanced TSSOP-EP Package
M
High-Frequenc y, Current-Mode PWM Controller
with Ac c urate Osc illator and Dual FET Drivers
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
RT
REG5
IN
V
CC
NDRVA
NDRVB
PGND
AGND
CS
TOP VIEW
MAX5069
TSSOP-EP
SYNC(HYST*)
SCOMP
FB
DT
UVLO/EN
COMP
FLTINT
*MAX5069B/C.
Pin Configuration
Ordering Information
19-3175; Rev 1; 7/04
*
EP = Exposed pad.
PART
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
16 TSSOP-EP*
16 TSSOP-EP*
16 TSSOP-EP*
16 TSSOP-EP*
MAX5069AAUE
MAX5069BAUE
MAX5069CAUE
MAX5069DAUE
Selector Guide appears at end of data sheet.
相關PDF資料
PDF描述
MAX5069C High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers
MAX5069D High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers
MAX5069DAUE High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers
MAX5069CAUE High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers
MAX5069A MAX5069A Evaluation Kit
相關代理商/技術參數(shù)
參數(shù)描述
MAX5069BAUE 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX5069BAUE+ 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX5069BAUE+T 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX5069BAUE-T 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX5069C 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers
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