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參數(shù)資料
| 型號： | MAX5028EVKIT |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Evaluation Kit for the MAX5025-MAX5028 |
| 中文描述： | 評估板MAX5025 - MAX5028 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 608K |
| 代理商： | MAX5028EVKIT |
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.
General Description
The MAX5003 50W forward converter evaluation kit (EV
kit) provides a regulated +5V output voltage at currents
up to 10A, when operated from a +36V to +72V input
voltage range.
This EV kit is fully assembled and tested. The output
voltage is preset to +5V. A single-transistor forward-
converter topology with a reset winding is used for high
output power and high efficiency. The use of an opto-
coupler in the feedback circuit provides full 1500V pri-
mary to secondary galvanic isolation. A bottom-mount-
ed heatsink plate safely dissipates the heat generated
by the power MOSFET and the output diode. The power
supply is designed to fit into a small footprint.
WARNING: Dangerous voltages are present on this
EV kit and on equipment connected to it. Users who
power-up this EV kit or power the sources connect-
ed to it must be careful to follow safety procedures
appropriate to working with high-voltage electrical
equipment.
Under severe fault or failure conditions, this EV kit
may dissipate large amounts of power, which could
result in the mechanical ejection of a component or
of component debris at high velocity. Operate this
EV kit with care to avoid possible personal injury
.
Features
o
+5V at 10A Output
o
±36V to ±72V Input Voltage Range
o
250kHz Switching Frequency
o
Fully Isolated Design with 1500V Isolation Built
into the Transformer
o
Fully Assembled and Tested Board with Minimum
PC Board Footprint
o
0.3% typical Line and Load Regulation
o
85% typical Efficiency at 25W
E
MAX5003-50W Evaluation Kit
________________________________________________________________
Maxim Integrated Products
1
19-1914; Rev 1; 3/02
Component List
Ordering Information
DESIGNATOR
C 1, C 3, C 10, C 15
C2
QTY
4
1
DESCRIPTION
0.1μF ceramic caps (0805)
470pF ceramic cap (0805)
0.47μF, 100V ceramic caps
(2220)
560μF, 6.3V electrolytic
capacitors
Nichicon UPW0J561MPH
47nF ceramic capacitors (0805)
22nF ceramic capacitor (0805)
1nF, 100V ceramic capacitor
(0805)
4.7nF, 1500V ceramic capacitor
200mA, 100V diode
Panasonic MA111CT
20A, 40V low forward voltage
Schottky diode
General Semi SBL2040CT
200mA, 200V, diode
Panasonic MA115CT
200V MOSFET, Rds = 0.18
International Rectifier IRF640N
NPN transistor, FMMT3904
C4, C5, C6
3
C7, C13, C14
3
C8, C9
C11
2
1
C12
1
C16
1
D3
1
D4
1
D5
1
Q1
1
Q2
1
DESIGNATOR
R1
R2
R3
R4
R5
QTY
1
1
1
1
1
DESCRIPTION
1M
±1% resistor (0805)
39.2k
±1% resistor (0805)
80.6k
±1% resistor (0805)
1.24k
±1% resistor (0805)
56k
±1% resistor (0805)
0.02
resistor
Dale-Vishay WSL1206 0.02
±1.0% R86
100
±5% resistor (0805)
470
±5% resistor (0805)
10k
±1% resistors (0805)
20
±5% resistor (1206)
10k
±5% resistor (0805)
240k
±5% resistor (0805)
1
±5% resistor (0805)
4.7μH inductor
Coiltronics HC2-4R7
Transformer (12-pin gull wing)
Coiltronics CTX03-14856
R6
1
R8
R9
1
1
2
1
1
1
1
R11, R12
R13
R14
R15
R16
L1
1
T1
1
PART
TEMP RANGE
0°C to +50°C*
IC PACKAGE
16 SO
MAX5003EVKIT50W
*
With air flow.
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