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参数资料
| 型号： | HIP6004EVAL3 |
| 厂商： | Intersil |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD EMBED HIP6004 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 1.3 ~ 3.5 V |
| 电流 - 输出： | 14A |
| 输入电压： | 5 ~ 12 V |
| 稳压器拓扑结构： | 降压 |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | HIP6004 |
Application Note 9706
design under worst-case transient loads. Testing the
90
85
VIN = 5V
VOUT = 2.8V
dynamic performance of the converter at 2.05V is more
severe than at a higher output voltage and therefore still
provides pertinent information.
80
VIN = 12V
2.85V
VOUT
(50mV/DIV)
75
COMP
70
1.5V
(1V/DIV)
2
4
6
8
10
12
14
LOAD CURRENT (A)
FIGURE 2. HIP6004EVAL3 EFFICIENCY vs LOAD
For a given output voltage and load, the efficiency is lower at
I L
5A/DIV
higher input voltages. This is due primarily to higher
MOSFET switching losses and is displayed in Figure 2.
0A
TIME (50 μ s/DIV)
Transient Response
Figures 3 and 4 show laboratory oscillograms of the
HIP6004EVAL3 in response to a load transient application.
The load transient applied is from 0A to 14A for both figures.
In Figure 3, the transient is applied using an Intel test tool
which emulates the actual dynamic performance of the
Pentium II and other future processors. Slew rates approach
30A/ μ s. The input voltage is 12V and the output voltage is
programmed to 2.05V for this case.
+5% REGULATION LIMIT
2.15
2.05
1.95
-5% REGULATION LIMIT
TIME (100 μ s/DIV)
FIGURE 3. HIP6004EVAL3 TRANSIENT RESPONSE TO
INTEL TEST TOOL
Due to the analog nature of the HIP600x VID pins (see
HIP6004 data sheet for details), the 5 VID pins must be
grounded by installing jumpers JP0-4 on the evaluation
board when the Intel test tool is used. This programs the
converter output voltage to 2.05V, which is lower than
present microprocessors require. However, the intent of
using the Intel test tool is to validate the DC-DC converter
2
FIGURE 4. 0A TO 14A LOAD TRANSIENT RESPONSE
Figure 3 shows that the output voltage remains well within
the ± 5% regulation window, even at the more stringent 2.05V
output. The additional margin allows for temperature, life,
and sample variations. Figure 4 details the positive edge of
the load transient application, but with different conditions.
The 0A to 14A load transient was applied with a Hewlett
Packard active load (HP6060B), which is limited to about
1A/ μ s slew rate. In this case, the output voltage is
programmed to a more typical value of 2.8V. The converter
performance is very similar for both test conditions. Since
the slew rate of the transient is slower in Figure 4, the output
voltage drops at a slower rate but the amount of the voltage
excursion is about the same. In addition to the output
voltage, Figure 4 shows the error amplifier output (COMP)
and the output inductor current (I L ). Notice the rapid
response of the error amplifier.
HIP6005EVAL3
The HIP6005EVAL3 is a standard Buck converter capable of
providing up to 14A of current at output voltages from 1.3V to
3.5V. The schematic and bill-of-materials for this design can
be found in the appendix. The HIP6005EVAL3 differs from
the HIP6004EVAL3 in three ways:
1. U1 is a HIP6005
2. CR3 replaces Q2 and CR2 is changed
3. L2 is a larger inductor
Efficiency
Figure 5 shows the efficiency data for the HIP6005EVAL3
under identical conditions as Figure 2 for the
HIP6004EVAL3. Comparing the two graphs reveals that the
Synchronous-Buck design is a little more efficient than the
Standard-Buck design over most of the load range.
相关PDF资料 |
PDF描述 |
|---|---|
| HIP6019BEVAL1 | EVAL BOARD 1 FOR HIP6019B |
| HIP6021EVAL1 | EVALUATION BOARD HIP6021 |
| HIP6301EVAL2 | EVALUATION BOARD HIP6301 |
| HIP6302EVAL1 | EVALUATION BOARD HIP6302 |
| HIP6521EVAL1 | EVALUATION BOARD HIP6521 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HIP6005 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor |
| HIP6005A | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor |
| HIP6005ACB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HIP6005ACB-T | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HIP6005B | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor |
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