HIP6019
Data Sheet
April 1998
File Number
4490.2
Advanced Dual PWM and Dual Linear
Power Control
The HIP6019 provides the power control and protection for four
output voltages in high-performance microprocessor and
computer applications. The IC integrates two PWM controllers,
a linear regulator and a linear controller as well as the
monitoring and protection functions into a single 28 lead SOIC
package. One PWM controller regulates the microprocessor
core voltage with a synchronous-rectified buck converter, while
the second PWM controller supplies the computer’s 3.3V power
with a standard buck converter. The linear controller regulates
power for the GTL bus and the linear regulator provides power
for the clock driver circuits.
The HIP6019 includes an Intel-compatible, TTL 5-input digital-
to-analog converter (DAC) that adjusts the core PWM output
voltage from 2.1V
DC
to 3.5V
DC
in 0.1V increments and from
1.8V
DC
to 2.05V
DC
in 0.05V steps. The precision reference
and voltage-mode control provide
±1%
static regulation. The
second PWM controller is user-adjustable for output levels
between 3.0V and 3.5V with
±2%
accuracy. The adjustable
linear regulator uses an internal pass device to provide 2.5V
±2.5%.
The adjustable linear controller drives an external N-
Channel MOSFET to provide 1.5V
±2.5%.
The HIP6019 monitors all the output voltages. A single Power
Good signal is issued when the core is within
±10%
of the DAC
setting and the other levels are above their under- voltage
levels. Additional built-in over-voltage protection for the core
output uses the lower MOSFET to prevent output voltages
above 115% of the DAC setting. The PWM controller’s over-
current functions monitor the output current by sensing the
voltage drop across the upper MOSFET’s r
DS(ON)
, eliminating
the need for a current sensing resistor.
Features
• Provides 4 Regulated Voltages
- Microprocessor Core, I/O, Clock Chip and GTL Bus
• Drives N-Channel MOSFETs
• Operates from +5V and +12V Inputs
• Simple Single-Loop Control Designs
- Voltage-Mode PWM Control
• Fast Transient Response
- High-Bandwidth Error Amplifiers
- Full 0% to 100% Duty Ratios
• Excellent Output Voltage Regulation
- Core PWM Output:
±1%
Over Temperature
- I/O PWM Output:
±2%
Over Temperature
- Other Outputs:
±2.5%
Over Temperature
• TTL-Compatible 5-Bit Digital-to-Analog Core Output
Voltage Selection
- Wide Range . . . . . . . . . . . . . . . . . . . 1.8V
DC
to 3.5V
DC
- 0.1V Steps . . . . . . . . . . . . . . . . . . . . 2.1V
DC
to 3.5V
DC
- 0.05V Steps . . . . . . . . . . . . . . . . . . 1.8V
DC
to 2.05V
DC
• Power-Good Output Voltage Monitor
• Microprocessor Core Voltage Protection Against Shorted
MOSFET
• Over-Voltage and Over-Current Fault Monitors
- Does Not Require Extra Current Sensing Element,
Uses MOSFET’s r
DS(ON)
• Small Converter Size
- Constant Frequency Operation
- 200kHz Free-Running Oscillator; Programmable from
50kHz to 1MHz
Pinout
HIP6019 (SOIC)
TOP VIEW
UGATE2 1
PHASE2 2
VID4 3
VID3 4
VID2 5
VID1 6
VID0 7
PGOOD 8
OCSET2 9
FB2 10
COMP2 11
SS 12
FAULT/RT 13
FB4 14
28 V
CC
27 UGATE1
26 PHASE1
25 LGATE1
24 PGND
23 OCSET1
22 VSEN1
21 FB1
20 COMP1
19 FB3
18 GATE3
17 GND
16 VOUT4
15 VSEN2
Applications
• Full Motherboard Power Regulation for Computers
• Low-Voltage Distributed Power Supplies
Ordering Information
PART NUMBER
HIP6019CB
HIP6019EVAL1
TEMP. (
o
C)
0 to 70
PACKAGE
28 Ld SOIC
PKG. NO.
M28.3
Evaluation Board
2-252
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
©
Intersil Corporation 1999
HIP6019
Absolute Maximum Ratings
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +15V
PGOOD, RT/FAULT, and GATE Voltage. . . . GND - 0.3V to V
CC
+ 0.3V
Input, Output or I/O Voltage . . . . . . . . . . . . . . . . . . GND -0.3V to 7V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Thermal Information
Thermal Resistance (Typical, Note 1)
θ
JA
(
o
C/W)
SOIC Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
60
SOIC Package (with 3 in
2
of copper) . . . . . . . . . . .
50
Maximum Junction Temperature (Plastic Package) . . . . . . . .150
o
C
Maximum Storage Temperature Range . . . . . . . . . . -65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300
o
C
(SOIC - Lead Tips Only)
Operating Conditions
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . +12V
±10%
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . 0
o
C to 70
o
C
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . 0
o
C to 125
o
C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1.
θ
JA
is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
PARAMETER
VCC SUPPLY CURRENT
Nominal Supply
POWER-ON RESET
Rising VCC Threshold
Falling VCC Threshold
Rising V
OCSET1
Threshold
OSCILLATOR
Free Running Frequency
Total Variation
Ramp Amplitude
REFERENCE AND DAC
Recommended Operating Conditions, Unless Otherwise Noted.
Refer to Figures 1, 2 and 3
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
I
CC
UGATE1, GATE2, GATE3, LGATE1, and
VOUT4 Open
-
10
-
mA
V
OCSET
= 4.5V
V
OCSET
= 4.5V
8.6
8.2
-
-
-
1.25
10.4
10.2
-
V
V
V
RT = OPEN
6kΩ < RT to GND < 200kΩ
∆V
OSC
RT = Open
185
-15
-
200
-
1.9
215
+15
-
kHz
%
V
P-P
DAC(VID0-VID4) Input Low Voltage
DAC(VID0-VID4) Input High Voltage
DACOUT Voltage Accuracy
Reference Voltage
(Pin FB2, FB3, and FB4)
LINEAR REGULATOR
Regulation
Under-Voltage Level
Under-Voltage Hysteresis
Over-Current Protection
Over-Current Protection During Start-Up
LINEAR CONTROLLER
Regulation
Under-Voltage Level
Under-Voltage Hysteresis
FB3
UV
VSEN3 = GATE3
FB3 Rising
C
SS
Voltage < 4V
FB4
UV
10mA < I
VOUT4
< 150mA
FB4 Rising
-
2.0
-1.0
1.240
-
-
-
1.265
0.8
-
+1.0
1.290
V
V
%
V
-2.5
-
-
180
560
-
75
6
230
700
2.5
87
-
-
-
%
%
%
mA
mA
-2.5
-
-
-
75
6
2.5
87
-
%
%
%
2-255
HIP6019
Electrical Specifications
PARAMETER
PWM CONTROLLER ERROR AMPLIFIERS
DC Gain
Gain-Bandwidth Product
Slew Rate
PWM CONTROLLER GATE DRIVERS
Drive1 (and 2) Source
Drive1 (and 2) Sink
Lower Gate Source
Lower Gate Sink
PROTECTION
V
OUT1
Over-Voltage Trip
V
OUT2
Over-Voltage Trip
VSEN2 Input Resistance
FAULT Sourcing Current
OCSET1(and 2) Current Source
Soft-Start Current
Chip Shutdown Soft-Start Threshold
POWER GOOD
V
OUT1
Upper Threshold
V
OUT1
Under-Voltage
V
OUT1
Hysteresis
V
OUT2
Under-Voltage
V
OUT2
Under-Voltage Hysteresis
PGOOD Voltage Low
V
PGOOD
I
PGOOD
= -4mA
VSEN1 Rising
VSEN1 Rising
Upper/Lower Threshold
VSEN2 Rising
108
92
-
2.45
-
-
-
-
2
2.55
100
-
110
94
-
2.65
-
0.5
%
%
%
V
mV
V
I
OVP
I
OCSET
I
SS
V
FAULT/RT
= 10.0V
V
OCSET
= 4.5V
DC
VSEN1 Rising
VSEN2 Rising
112
4.1
-
10
170
-
-
115
4.3
70
14
200
11
-
118
4.5
-
-
230
-
1.0
%
V
kΩ
mA
µA
µA
V
I
UGATE
R
UGATE
I
LGATE
R
LGATE
VCC = 12V, V
UGATE1
(or V
GATE2
) = 6V
V
GATE-PHASE
= 1V
VCC = 12V, V
LGATE
= 1V
V
GATE
= 1V
-
-
-
-
1
1.7
1
1.4
-
3.5
-
3.0
A
Ω
A
Ω
GBWP
SR
COMP = 10pF
-
-
-
88
15
6
-
-
-
dB
MHz
V/µs
Recommended Operating Conditions, Unless Otherwise Noted.
Refer to Figures 1, 2 and 3
(Continued)
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Typical Performance Curves
140
120
1000
RESISTANCE (kΩ)
R
T
PULLUP
TO +12V
100
I
CC
(mA)
80
C
GATE
= 3600pF
60
C
GATE
= 1500pF
10
R
T
PULLDOWN TO V
SS
40
C
GATE
= 660pF
20
C
UGATE1
= C
UGATE2
= C
LGATE1
= C
GATE
V
VCC
= 12V,V
IN
= 5V
C
GATE
= 4800pF
100
10
100
SWITCHING FREQUENCY (kHz)
1000
100
200
300
400
500
600
700
800
900
1000
SWITCHING FREQUENCY (kHz)
FIGURE 4. R
T
RESISTANCE vs FREQUENCY
FIGURE 5. BIAS SUPPLY CURRENT vs FREQUENCY
2-256
Microcontroller MCU
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