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ISL8121 Datasheet(PDF) 6 Page - Intersil Corporation

Part No. ISL8121
Description  3V to 20V, Two-Phase Buck PWM Controller with Integrated 4A MOSFET Drivers
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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ISL8121 Datasheet(HTML) 6 Page - Intersil Corporation

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6
FN6352.1
October 18, 2006
Timing Diagram
External Reference DC Amplitude Range
VREFTRK (DC)
0.1
2.3
V
External Reference DC Offset Range
VREFTRK (DC) offset
-4.5
4.5
mV
ERROR AMPLIFIER AND REMOTE SENSING
DC Gain (Note 4)
RL = 10K to ground
80
dB
Gain-Bandwidth Product (Note 4)
CL = 10pF
95
MHz
Slew Rate (Note 4)
CL = 10pF
30
V/
µs
Maximum Output Voltage
No load
4.0
V
Minimum Output Voltage
No load
0.7
V
VSEN+, VSEN- Input Resistance
140
225
k
POWER GOOD
PGD Rising Lower Threshold
92
%
PGD Rising Upper Threshold
112
%
PGD Threshold Hysteresis
2.5
%
PROTECTION
Overcurrent Trip Level
80
103
120
µA
Overvoltage Threshold
VDIFF Rising
122
%
Overvoltage Hysteresis
VDIFF Falling
5.5
%
SWITCHING TIME
UG Rise Time (Note 4)
tRUG; VVCC = 5V, 3nF Load
8
ns
LG Rise Time (Note 4)
tRLG; VVCC = 5V, 3nF Load
8
ns
UG Fall Time (Note 4)
tFUG; VVCC = 5V, 3nF Load
8
ns
LG Fall Time (Note 4)
tFLG; VVCC = 5V, 3nF Load
4
ns
UG Turn-On Non-overlap (Note 4)
tPDHUG; VVCC = 5V, 3nF Load
8
ns
LG Turn-On Non-overlap (Note 4)
tPDHLG; VVCC = 5V, 3nF Load
8
ns
OUTPUT
Upper Drive Source Resistance
100mA Source Current
1.0
2.5
Upper Drive Sink Resistance
100mA Sink Current
1.0
2.5
Lower Drive Source Resistance
100mA Source Current
1.0
2.5
Lower Drive Sink Resistance
100mA Sink Current
0.4
1.0
NOTES:
4. Parameter magnitude guaranteed by design.
5. Not a tested parameter; range provided for reference only.
Electrical Specifications
Operating Conditions: VCC = 5V, TJ = -40°C to +85°C, unless otherwise specified (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
UG
LG
tPDHUG
tRUG
tFUG
tFLG
tPDHLG
tRLG
ISL8121
ISL8121


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