HIP6302EVAL1【PDF 4/11 页】EVALUATION BOARD HIP6302

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Application Note AN9888

After the initial over-current trip, the HIP6302 waits for a

Summary

period of time equal to 2048/f SW (f SW is the switching

frequency) before initiating a soft-start cycle. If the over-load

condition remains, another over-current trip will occur before

the end of the soft-start sequence. This repetitive over-

current cycling is illustrated in Figure 8, and will continue

inde?nitely unless the fault is cleared or power to the

converter is removed. Because of the wait period, the worst

case power delivered during overcurrent cycling is equal to

45% of the power delivered during normal operation at full

load. Therefore, inde?nite over-current cycling does not

create a thermal problem for the circuit.

The HIP6302EVAL1 is intended to provide a convenient

platform to evaluate the performance of the HIP6302 -

HIP6601A chip set in the speci?c implementation indicated

in Table 1. The design demonstrates a favorable trade off

between low cost, high ef?ciency, and small footprint. The

following pages include schematic, bill of materials, and

layout drawings to facilitate implementation of this solution.

The evaluation board is simple and convenient to operate,

and test points are available to evaluate the most commonly

tested parameters. Example waveforms are given for

reference.

The HIP6302 and HIP6601A provide a versatile 2-phase

OUTPUT CURRENT, 20A/DIV

power solution for low-voltage applications from 25A to

approximately 40A, and together they result in the most

effective solution available.

References

For Intersil documents available on the internet, see web site

http://www.intersil.com/

CORE VOLTAGE,

500mV/DIV

Intersil Technical Support 1 (888) INTERSIL

[1] HIP6302 Data Sheet, Intersil Corporation, Power

Management Products Division, 2000.

(http://www.intersil.com/).

5ms/DIV

[2] HIP6601A, HIP6603A Data Sheet, Intersil Corporation,

FIGURE 8. OVERCURRENT BEHAVIOR

Power Management Products Division, 2000.

[3] HIP6602A Data Sheet, Intersil Corporation, Power

Ef?ciency

Management Products Division, 2000.

Figure 9 shows the ef?ciency versus current plot for the

HIP6302EVAL1 for 5A through 35A. The measurements

were made at room temperature with natural convection

cooling only..

CURRENT (AMPERES)

FIGURE 9. EFFICIENCY vs CURRENT

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HIP6302V 制造商:未知厂家制造商全称:未知厂家功能描述:Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller

HIP6302VCB 功能描述:IC REG CTRLR BUCK PWM 16-SOIC RoHS:否类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器系列:- 标准包装:4,000 系列:- PWM 型:电压模式输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是升压:无回扫:无反相:无倍增器:无除法器:无 Cuk:无隔离:无工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘包装:带卷 (TR)

HIP6302VCB-T 功能描述:IC REG CTRLR BUCK PWM 16-SOIC RoHS:否类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器系列:- 标准包装:4,000 系列:- PWM 型:电压模式输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是升压:无回扫:无反相:无倍增器:无除法器:无 Cuk:无隔离:无工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘包装:带卷 (TR)

HIP6302VCBZ 功能描述:电流型 PWM 控制器 TWO PHS SYNCH BUCK CNTRLR VRM 9 X RoHS:否制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14

HIP6302VCBZ-T 功能描述:电流型 PWM 控制器 2 PHS SYNCH BUCK CTR VRM 9 X W/VID ON RoHS:否制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14

HIP6303 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller

HIP6303CB 功能描述:IC REG CTRLR BUCK PWM 20-SOIC RoHS:否类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器系列:- 标准包装:4,000 系列:- PWM 型:电压模式输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是升压:无回扫:无反相:无倍增器:无除法器:无 Cuk:无隔离:无工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘包装:带卷 (TR)

HIP6303CB WAF 制造商:Harris Corporation 功能描述:

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