hip6004d Intersil Corporation, hip6004d Datasheet - Page 5

• Manufacturer Part Number: hip6004d
• Description: Buck And Synchronous-rectifier Pwm Controller And Output Voltage Monitor Hip6004d
• Manufacturer: Intersil Corporation

Electrical Specifications
Typical Performance Curves
Functional Pin Descriptions
V
This pin is connected to the converter’s output voltage. The
PGOOD and OVP comparator circuits use this signal to
report output voltage status and for overvoltage protection.
OCSET (Pin 2)
Connect a resistor (R
upper MOSFET. R
(I
POWER GOOD
Upper Threshold (VSEN/DACOUT)
Lower Threshold (VSEN/DACOUT)
Hysteresis (VSEN/DACOUT)
PGOOD Voltage Low
OCS
SEN
1000
100
10
), and the upper MOSFET on-resistance (r
10
(Pin 1)
FIGURE 1. R
R
OCSET
PARAMETER
COMP
T
TO +12V
VSEN
PULLUP
VID0
VID1
VID2
VID3
VID4
SS
FB
OCSET
SWITCHING FREQUENCY (kHz)
T
10
OCSET
1
2
3
4
5
6
7
8
9
RESISTANCE vs FREQUENCY
, an internal 200µA current source
) from this pin to the drain of the
5
100
Recommended Operating Conditions, Unless Otherwise Noted (Continued)
R
T
PULLDOWN TO V
20
19
18
17
16
15
14
13
12
11
RT
OVP
VCC
LGATE
PGND
BOOT
UGATE
PHASE
PGOOD
GND
SYMBOL
V
PGOOD
DS(ON)
SS
VSEN Rising
VSEN Falling
Upper and Lower Threshold
I
PGOOD
) set
1000
HIP6004D
= -5mA
TEST CONDITIONS
the converter over-current (OC) trip point according to the
following equation:
An over-current trip cycles the soft-start function.
SS (Pin 3)
Connect a capacitor from this pin to ground. This capacitor,
along with an internal 10µA current source, sets the soft-
start interval of the converter.
VID0-4 (Pins 4-8)
VID0-4 are the input pins to the 5-bit DAC. The states of
these five pins program the internal voltage reference
(DACOUT). The level of DACOUT sets the converter output
voltage. It also sets the PGOOD and OVP thresholds. Table
1 specifies DACOUT for the all combinations of DAC inputs.
COMP (Pin 9) and FB (Pin 10)
COMP and FB are the available external pins of the error
amplifier. The FB pin is the inverting input of the error
amplifier and the COMP pin is the error amplifier output.
These pins are used to compensate the voltage-control
feedback loop of the converter.
I
PEAK
80
70
60
50
40
30
20
10
FIGURE 2. BIAS SUPPLY CURRENT vs FREQUENCY
0
100
=
I
---------------------------------------------------- -
C
OCSET
UPPER
200
r
DS ON
= C
300
x R
(
SWITCHING FREQUENCY (kHz)
LOWER
OCSET
)
400
= C
500
GATE
MIN
106
89
-
-
600
C
GATE
TYP
0.5
C
2
-
-
C
GATE
700
GATE
= 3300pF
MAX
= 10pF
111
= 1000pF
94
800
-
-
July 13, 2005
900
UNITS
FN4855.3
%
%
%
V
1000