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| 型号： | MAX5069EVKIT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX5069 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，隔离 |
| 输出电压： | 12V |
| 电流 - 输出： | 10A |
| 输入电压： | 36 ~ 72V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 500kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX5069 |
19-3175; Rev 1; 7/04
High-Frequency, Current-Mode PWM Controller
with Accurate Oscillator and Dual FET Drivers
General Description
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
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
Ordering Information
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.
PART
MAX5069AAUE
MAX5069BAUE
MAX5069CAUE
MAX5069DAUE
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*
* EP = Exposed pad.
Applications
Universal-Input AC Power Supplies
Isolated Telecom Power Supplies
Networking System Power Supplies
TOP VIEW
Pin Configuration
Server Power Supplies
Industrial Power Conversion
RT 1
SYNC(HYST*) 2
SCOMP 3
16 REG5
15 IN
14 V CC
DT 4
UVLO/EN 5
FB 6
COMP 7
MAX5069
13 NDRVA
12 NDRVB
11 PGND
10 AGND
Selector Guide appears at end of data sheet.
FLTINT 8
*MAX5069B/C.
TSSOP-EP
9
CS
________________________________________________________________ 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
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