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参数资料
| 型号： | HIP6028CB |
| 厂商： | HARRIS SEMICONDUCTOR |
| 元件分类： | 稳压器 |
| 英文描述： | Advanced PWM and Dual Linear Power Control with Integrated ACPI Support Interface |
| 中文描述： | SWITCHING CONTROLLER, 215 kHz SWITCHING FREQ-MAX, PDSO24 |
| 文件页数： | 9/16页 |
| 文件大小： | 140K |
| 代理商： | HIP6028CB |
2-319
of V
IN
due to MOSFET switching. The over-current function
will trip at a peak inductor current (I
PEAK)
determined by:
The OC trip point varies with MOSFET’s 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
DS(ON)
at the highest junction temperature.
2. The minimum I
OCSET
from the specification table.
3. Determine I
PEAK
for I
PEAK
> I
OUT(MAX)
+ (
I)/2,
where
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
DC
and 3.5V
DC
. This output is
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, since they are internally pulled up to +5V
by a 10
μ
A (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 or
cause an over-current event. ‘11111’ VID pin combination
disables the IC and drives ‘on’ the otherwise open-collector
at the PGOOD pin.
I
PEAK
=
I
---------------------------------------------------
R
×
DS ON
)
UGATE
OCSET
PHASE
OVER-
CURRENT1
+
-
GATE
CONTROL
VCC
OC1
200
μ
A
V
DS
I
D
V
SET
R
OCSET
V
IN
= +5V
OVER-CURRENT TRIP: V
DS
> V
SET
(i
D
r
DS
(ON) > I
OCSET
R
OCSET
)
I
OCSET
+
+
FIGURE 9. OVER-CURRENT DETECTION
PWM
V
PHASE
= V
IN
- V
DS
V
OCSET
= V
IN
- V
SET
DRIVE
HIP6028
VCC
LGATE
PGND
TABLE 1. V
OUT1
VOLTAGE PROGRAM
PIN NAME
NOMINAL
OUT1
VOLTAGE
DACOUT
VID4
VID3
VID2
VID1
VID0
0
1
1
1
1
1.30
0
1
1
1
0
1.35
0
1
1
0
1
1.40
0
1
1
0
0
1.45
0
1
0
1
1
1.50
0
1
0
1
0
1.55
0
1
0
0
1
1.60
0
1
0
0
0
1.65
0
0
1
1
1
1.70
0
0
1
1
0
1.75
0
0
1
0
1
1.80
0
0
1
0
0
1.85
0
0
0
1
1
1.90
0
0
0
1
0
1.95
0
0
0
0
1
2.00
0
0
0
0
0
2.05
1
1
1
1
1
INHIBIT
1
1
1
1
0
2.1
1
1
1
0
1
2.2
1
1
1
0
0
2.3
1
1
0
1
1
2.4
1
1
0
1
0
2.5
1
1
0
0
1
2.6
1
1
0
0
0
2.7
1
0
1
1
1
2.8
1
0
1
1
0
2.9
1
0
1
0
1
3.0
1
0
1
0
0
3.1
1
0
0
1
1
3.2
1
0
0
1
0
3.3
1
0
0
0
1
3.4
1
0
0
0
0
3.5
NOTE: 0 = connected to GND or V
SS
, 1 = open or connected to 5V
through pull-up resistors
HIP6028
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HIP6028CB WAF | 制造商:Harris Corporation 功能描述: |
| HIP6028EVAL1 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Advanced PWM and Dual Linear Power Control with Integrated ACPI Support Interface |
| HIP6034CB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| HIP6034CB-T | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| HIP6200 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Transient Voltage Regulator DeCAPitator⑩ |
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