hip6020 Intersil Corporation, hip6020 Datasheet - Page 5

• Manufacturer Part Number: hip6020
• Description: Advanced Dual Pwm And Dual Linear Power Controller
• Manufacturer: Intersil Corporation

Electrical Specifications
Typical Performance Curves
Functional Pin Descriptions
VCC (Pin 28)
Provide a 12V bias supply for the IC to this pin. This pin also
provides the gate bias charge for all the MOSFETs
controlled by the IC. The voltage at this pin is monitored for
Power-On Reset (POR) purposes.
GND (Pin 17)
Signal ground for the IC. All voltage levels are measured with
respect to this pin.
PWM CONTROLLERS GATE DRIVERS
UGATE1,2 Source
UGATE1,2 Sink
LGATE Source
LGATE Sink
PROTECTION
VSEN1 Over-Voltage (VSEN1/DACOUT)
FAULT Sourcing Current
OCSET1,2 Current Source
Soft-Start Current
POWER GOOD
VSEN1 Upper Threshold
(VSEN1/DACOUT)
VSEN1 Under-Voltage
(VSEN1/DACOUT)
VSEN1 Hysteresis (VSEN1/DACOUT)
PGOOD Voltage Low
1000
100
10
10
FIGURE 1. R
R
TO +12V
PARAMETER
T
PULLUP
SWITCHING FREQUENCY (kHz)
T
RESISTANCE vs FREQUENCY
2-285
100
Recommended Operating Conditions, Unless Otherwise Noted. Refer to Figures 1, 2 and 3 (Continued)
R
T
PULLDOWN TO V
SYMBOL
V
R
R
I
I
I
OCSET
UGATE
PGOOD
LGATE
UGATE
I
LGATE
OVP
I
SS
SS
VCC = 12V, V
V
VCC = 12V, V
V
VSEN1 Rising
V
V
VSEN1 Rising
VSEN1 Rising
Upper/Lower Threshold
I
PGOOD
GATE-PHASE
LGATE
FAULT/RT
OCSET
1000
HIP6020
= 1V
= -4mA
= 4.5V
= 2.0V
TEST CONDITIONS
UGATE1
LGATE1
= 1V
DC
PGND (Pin 24)
This is the power ground connection. Tie the synchronous
PWM converter’s lower MOSFET source to this pin.
VAUX (Pin 16)
The +3.3V input voltage at this pin is monitored for power-on
reset (POR) purposes. Connected to +5V input, this pin
provides boost current for the two linear regulator output
drives in the event bipolar NPN transistors (instead of
N-channel MOSFETs) are employed as pass elements.
140
120
100
80
60
40
20
FIGURE 2. BIAS SUPPLY CURRENT vs FREQUENCY
0
= 1V
100
(or V
C
V
V
UGATE1
IN
CC
UGATE2
200
= 5V
= 12V
= C
300
) = 6V
UGATE2
SWITCHING FREQUENCY (kHz)
400
= C
500
LGATE1
MIN
170
108
92
-
-
-
-
-
-
-
-
-
600
= C
TYP
115
200
1.7
1.4
8.5
28
1
1
2
-
-
-
700
MAX
120
230
110
3.5
3.0
0.8
800
94
-
-
-
-
-
C = 1500pF
C = 4800pF
C = 3600pF
C = 660pF
900
UNITS
mA
%
%
%
%
A
A
V
A
A
1000