HIP6014 Intersil Corporation, HIP6014 Datasheet - Page 6

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HIP6014

Manufacturer Part Number
HIP6014
Description
Buck and Synchronous-Rectifier (PWM) Controller and Output Voltage Monitor
Manufacturer
Intersil Corporation
Datasheet

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operation with an overload condition. Note that the inductor
current increases to over 15A during the C
and causes an over-current trip. The converter dissipates very
NOTE: 0 = connected to GND or V
A small ceramic capacitor should be placed in parallel with
R
presence of switching noise on the input voltage.
Output Voltage Program
The output voltage of a HIP6014 converter is programmed
to discrete levels between 1.8V
OCSET
VID4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15A
10A
4V
2V
0V
5A
0A
to smooth the voltage across R
FIGURE 4. OVER-CURRENT OPERATION
VID3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
PIN NAME
VID2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
TIME (20ms/DIV.)
VID1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
6
SS
DC
, 1 = connected to V
and 3.5V
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
OCSET
SS
charging interval
DC
NOMINAL OUTPUT
VOLTAGE DACOUT
TABLE 1. OUTPUT VOLTAGE PROGRAM
in the
. The
DD
1.80
1.85
1.90
1.95
2.00
2.05
0
0
0
0
0
0
0
0
0
0
through pull-up resistors
HIP6014
VID4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
little power with this method. The measured input power for the
conditions of Figure 4 is 2.5W.
The over-current function will trip at a peak inductor current
(I
where I
typical). The OC trip point varies mainly due to the
MOSFET’s r
in the normal operating load range, find the R
from the equation above with:
For an equation for the ripple current see the section under
component guidelines titled ‘Output Inductor Selection’.
voltage identification (VID) pins program an internal voltage
reference (DACOUT) with a TTL-compatible 5-bit digital-to-
analog converter (DAC). The level of DACOUT also sets
the PGOOD and OVP thresholds. Table 1 specifies the
DACOUT voltage for the 32 different combinations of
connections on the VID pins. The output voltage should not
be adjusted while the converter is delivering power.
I
PEAK
1. The maximum r
2. The minimum I
3. Determine I
PEAK)
where I is the output inductor ripple current.
VID3
=
OCSET
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
determined by:
I
-------------------------------------------------- -
OCSET
PIN NAME
DS(ON)
r
VID2
DS ON
is the internal OCSET current source (200 A
PEAK
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
R
OCSET
DS(ON)
OCSET
variations. To avoid over-current tripping
for
VID1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
from the specification table.
at the highest junction temperature.
I
PEAK
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
I
OUT MAX
NOMINAL OUTPUT
VOLTAGE DACOUT
OCSET
+
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
0
I
2
resistor
,

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