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参数资料
| 型号： | MAX5003ESE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBK ISO VM 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1.2MHz |
| 占空比： | 75% |
| 电源电压： | 11 V ~ 110 V |
| 降压： | 无 |
| 升压： | 无 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
High-Voltage PWM
Power-Supply Controller
stress on the switch. A FET with the lowest total charge
and the lowest R DS(ON ) for the maximum drain voltage
expected (plus some safety factor) is the best choice.
The choice of package is a function of the application,
the total power, and the cooling methods available.
Transformer
Transformer parameters, once calculated in the design
process, can be used to find standard parts whenever
possible. The most important factors are the saturation
current, primary inductance, leakage inductance turns
ratio, and losses. Packaging and EMI generation and
susceptibility are closely connected, and must be con-
sidered. In general, parts with exposed air gaps (not
contained inside the magnetic structure) will generate
the most radiated EMI, and might need external shield-
ing. If the design is in high-voltage power supplies, the
insulation specifications are also important. Pay close
attention if the circuitry is galvanically connected to the
mains at any point, since serious safety and regulatory
issues might exist.
Capacitors
As in any high-frequency power circuit, the capacitors
used for filtering must meet very low ESR and ESL
requirements. At the 300kHz frequency (of which the
MAX5003 is capable), the most favorable technologies
are ceramic capacitors and organic semiconductor (OS
CON) capacitors. The temperature dependence of the
capacitance value and the ESR specification is important,
particularly if the ESR is used as part of the compensation
network for the feedback loop. If using through-hole-
Table 1. Component Manufacturers
mounted parts, keep lead length as short as practical.
Components with specifications for switching power con-
verters are preferred. Decoupling capacitors must be
mounted close to the IC.
Diodes
The choice of rectifier diodes depends on the output
voltage range of the particular application. For low-volt-
age converters, the diode drop is a significant portion
of the total loss, and must be kept to a minimum. In
those cases, Schottky diodes are the preferred compo-
nent for the design. At higher voltages, ultra-fast recov-
ery diodes must be used, since Schottky components
will not satisfy the reverse voltage specification.
For all cases, the specifications to be determined
before choosing a diode are the peak current, the aver-
age current, the maximum reverse voltage, and the
maximum acceptable rectification losses. Once a type
is identified, a thermal analysis of the diode losses vs.
total thermal resistance (from junction to ambient) must
be carried out if the total power involved is significant.
Industrial-frequency (60Hz) rectifiers are not recom-
mended for any function in these converters, due to
their high capacitance and recovery losses. If using
overdimensioned rectifiers, the junction capacitance
influence must be reviewed.
___________________Chip Information
TRANSISTOR COUNT: 1050
SUBSTRATE CONNECTED TO GND
DEVICE TYPE
MANUFACTURER
International Rectifier
PHONE
310-322-3333
FAX
310-322-3332
Power FETs
Fairchild
408-822-2000
408-822-2102
Current-Sense Resistors
Dale-Vishay
Motorola
402-564-3131
303-675-2140
402-563-6418
303-675-2150
Diodes
Central Semiconductor
516-435-1110
516-435-1824
Transistors
Capacitors
Coils
Central Semiconductor
Sanyo
Taiyo Yuden
AVX
Coiltronics
516-435-1110
619-661-6835
408-573-4150
803-946-0690
561-241-7876
516-435-1824
619-661-1055
408-573-4159
803-626-3123
561-241-9339
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
? 2002 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5003EVKIT | 功能描述:电压模式 PWM 控制器 MAX5003 Eval Kit RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX5003EVKIT50W | 功能描述:电压模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX5004CAX | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX5005 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Evaluation Kit Evaluation System for the MAX1618[MAX1618EVKIT/MAX1618EVSystem ] |
| MAX5005ACUB | 功能描述:低压差稳压器 - LDO 150mA USB LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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