HIP6004EVAL3 Intersil, HIP6004EVAL3 Datasheet - Page 6

• Manufacturer Part Number: HIP6004EVAL3
• Description: EVALUATION BOARD EMBED HIP6004
• Manufacturer: Intersil

Specifications of HIP6004EVAL3

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.3 ~ 3.5V
• Current - Output: 14A
• Voltage - Input: 5 ~ 12V
• Regulator Topology: Buck
• Board Type: Fully Populated
• Utilized Ic / Part: HIP6004
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Frequency - Switching: -

referenced to V
over-current function initiates a soft-start sequence. The soft-
start function discharges C
inhibits PWM operation. The soft-start function recharges C
and PWM operation resumes with the error amplifier clamped
to the SS voltage. Should an overload occur while recharging
C
charging C
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
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
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 HIP6004 converter is programmed
to discrete levels between 1.3V
voltage identification (VID) pins program an internal voltage
reference (DACOUT) with a 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 combinations of open or short
PEAK)
SS
OCSET
VID4
, the soft start function inhibits PWM operation while fully
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
determined by:
to smooth the voltage across R
SS
VID3
to 4V to complete its cycle. Figure 4 shows this
IN
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
) exceeds the voltage across R
PIN NAME
VID2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
SS
with a 10μA current sink and
6
SS
DC
, 1 = OPEN.
VID1
and 3.5V
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
OCSET
SS
charging interval
VID0
DC
TABLE 1. OUTPUT VOLTAGE PROGRAM
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
OCSET
in the
. The
, the
VOLTAGE
NOMINAL
DACOUT
OUTPUT
SS
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
HIP6004
,
VID4
I
where I
typical). The OC trip point varies mainly due to the MOSFETs
r
normal operating load range, find the R
the equation above with:
For an equation for the ripple current see the section under
component guidelines titled ‘Output Inductor Selection’.
connections on the VID pins. The output voltage should not
be adjusted while the converter is delivering power.
Remove input power before changing the output voltage.
Adjusting the output voltage during operation could toggle
the PGOOD signal and exercise the overvoltage protection.
The DAC function is a precision non-inverting summation
amplifier shown in Figure 5. The resistor values shown are
only approximations of the actual precision values used.
Grounding any combination of the VID pins increases the
DACOUT voltage. The ‘open’ circuit voltage on the VID pins
is the band gap reference voltage, 1.26V.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
PEAK
DS(ON)
1. The maximum r
2. The minimum I
3. Determine I
where ΔI is the output inductor ripple current.
=
OCSET
variations. To avoid over-current tripping in the
VID3
I
-------------------------------------------------- -
OCSET
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
r
DS ON
is the internal OCSET current source (200μA
PEAK
PIN NAME
•
(
R
OCSET
DS(ON)
VID2
OCSET
)
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
for
from the specification table.
I
at the highest junction temperature.
PEAK
VID1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
>
I
OUT MAX
OCSET
(
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
)
+
resistor from
(
ΔI
VOLTAGE
NOMINAL
DACOUT
) 2 ⁄
OUTPUT
2.0
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
,