HIP6004 Intersil Corporation, HIP6004 Datasheet - Page 7
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HIP6004
Manufacturer Part Number
HIP6004
Description
Buck and Synchronous-Rectifier (PWM) Controller and Output Voltage Monitor
Manufacturer
Intersil Corporation
Datasheet
1.HIP6004.pdf
(12 pages)
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For an equation for the ripple current see the section under component guidelines titled ‘Output Inductor Selection’
.
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 HIP6004A converter is
programmed to discrete levels between 1.8V
3.5V
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. Remove input power before
changing the output voltage. Adjusting the output voltage
during operation could toggle the PGOOD signal and
exercise the overvoltage protection.
All VID pin combinations resulting in a 0V output setting
activate the Power-On Reset function, disable the gate drive
circuitry and output a 0 logic at PGOOD pin.
Application Guidelines
Layout Considerations
As in any high frequency switching converter, layout is very
important. Switching current from one power device to
another can generate voltage transients across the
NOTE: 0 = connected to GND or V
OCSET
VID4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
DC
. The voltage identification (VID) pins program an
to smooth the voltage across R
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
2-68
VID1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
SS
, 1 = connected to V
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
OCSET
NOMINAL OUTPUT
VOLTAGE DACOUT
TABLE 1. OUTPUT VOLTAGE PROGRAM
DC
in the
and
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.
HIP6004A
VID4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
impedances of the interconnecting bond wires and circuit
traces. These interconnecting impedances should be
minimized by using wide, short printed circuit traces. The
critical components should be located as close together as
possible, using ground plane construction or single point
grounding.
Figure 5 shows the critical power components of the
converter. To minimize the voltage overshoot the
interconnecting wires indicated by heavy lines should be
part of ground or power plane in a printed circuit board. The
components shown in Figure 5 should be located as close
FIGURE 5. PRINTED CIRCUIT BOARD POWER AND
HIP6004A
VID3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
UGATE
PHASE
LGATE
PGND
PIN NAME
GROUND PLANES OR ISLANDS
VID2
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
V
Q
Q
RETURN
IN
2
1
VID0
D
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
2
C
NOMINAL OUTPUT
VOLTAGE DACOUT
IN
L
O
C
O
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
V
OUT