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HIP6016CB 参数 Datasheet PDF下载

HIP6016CB图片预览
型号: HIP6016CB
PDF下载: 下载PDF文件 查看货源
内容描述: 先进的PWM和力量线性双控制 [Advanced PWM and Dual Linear Power Control]
分类和应用: 开关光电二极管
文件页数/大小: 14 页 / 134 K
品牌: INTERSIL [ Intersil ]
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HIP6016  
Resistor R  
OCSET  
PWM converter. As shown in Figure 9, the internal 200µA  
current sink develops a voltage across R (V ) that is  
programs the over-current trip level for the  
The soft-start function controls the output voltage rate of rise  
to limit the current surge at start-up. The soft-start interval is  
programmed by the soft-start capacitor, C . Programming  
OCSET SET  
SS  
referenced to V . The DRIVE signal enables the over-current  
comparator (OVER-CURRENT1). When the voltage across the  
a faster soft-start interval increases the peak surge current.  
The peak surge current occurs during the initial output  
voltage rise to 80% of the set value.  
IN  
upper MOSFET (V  
comparator trips to set the over-current latch. Both V  
) exceeds V  
, the over-current  
and  
DS(ON)  
SET  
SET  
TABLE 1. V  
OUT1  
VOLTAGE PROGRAM  
V
are referenced to V and a small capacitor across  
DS  
IN  
R
helps V  
OCSET  
track the variations of V due to  
IN  
PIN NAME  
NOMINAL  
OUT1  
VOLTAGE  
DACOUT  
OCSET  
MOSFET switching. The over-current function will trip at a peak  
inductor current (I  
determined by:  
PEAK)  
VID4  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
VID3  
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
VID2  
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
VID1  
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
VID0  
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
I
× R  
1.30  
1.35  
1.40  
1.45  
1.50  
1.55  
1.60  
1.65  
1.70  
1.75  
1.80  
1.85  
1.90  
1.95  
2.00  
2.05  
INHIBIT  
2.1  
OCSET  
OCSET  
I
= ---------------------------------------------------------  
PEAK  
r
DS(ON)  
The OC trip point varies with MOSFETs’ temperature. To avoid  
over-current tripping in the normal operating load range,  
determine the R  
OCSET  
resistor from the equation above with:  
1. The maximum r  
temperature.  
at the highest junction  
DS(ON)  
2. The minimum I  
from the specification table.  
OCSET  
for I  
3. Determine I  
> I + (I)/2, where  
PEAK OUT(MAX)  
PEAK  
I is the output inductor ripple current.  
For an equation for the output inductor ripple current see  
the section under component guidelines titled ‘Output  
Inductor Selection’.  
OUT1 Voltage Program  
The output voltage of the PWM converter is programmed to  
discrete levels between 1.3V  
and 3.5V . This output is  
DC  
DC  
designed to supply the microprocessor core voltage. The  
voltage identification (VID) pins program an internal voltage  
reference (DACOUT) through a TTL-compatible 5-bit  
digital-to-analog converter. The level of DACOUT also sets  
the PGOOD and OVP thresholds. Table 1 specifies the  
DACOUT voltage for the different combinations of  
connections on the VID pins. The VID pins can be left open  
for a logic 1 input, because they are internally pulled up to  
+5V by a 10µA (typically) current source. Changing the VID  
inputs during operation is not recommended. The sudden  
change in the resulting reference voltage could toggle the  
PGOOD signal and exercise the over-voltage protection.  
‘11111’ VID pin combination results in an INHIBIT, which  
disables the IC and the open-collector at the PGOOD pin.  
2.2  
2.3  
2.4  
2.5  
2.6  
2.7  
2.8  
2.9  
Application Guidelines  
3.0  
Soft-Start Interval  
3.1  
Initially, the soft-start function clamps the error amplifier’s  
output of the PWM converter. After the output voltage  
increases to approximately 80% of the set value, the  
reference input of the error amplifier is clamped to a voltage  
proportional to the SS pin voltage. Both linear outputs follow  
a similar start-up sequence. The resulting output voltage  
sequence is shown in Figure 6.  
3.2  
3.3  
3.4  
3.5  
NOTE: 0 = connected to GND or V , 1 = open or connected to 5V  
SS  
through pull-up resistors.  
2-204