IR3721 International Rectifier, IR3721 Datasheet - Page 2

• Manufacturer Part Number: IR3721
• Description: Power Monitor IC
• Manufacturer: International Rectifier

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ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings (Referenced to GND)
VDD:.................................................................3.9V
All other Analog and Digital pins ......................3.9V
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
These are stress ratings only and functional operation of the device at these or any other conditions beyond those
indicated in the operational sections of the specifications are not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply: VDD = 3.3V ± 5%, 0
operation in the typical application circuit. See notes following table.
BIAS SUPPLY
VDD Turn-on Threshold, VDD
VDD Turn-off Threshold, VDD
VDD UVLO Hysteresis
VDD Operating Current, ICC
VOLTAGE REFERENCE
V
R
ΔΣ CONVERTER
Vo common mode range
Duty Ratio Accuracy
Duty Ratio Accuracy
Sampling frequency, f
Comparator Offset
CS pin input current, I
DIGITAL OUTPUT
VK pin voltage range
DI source resistance
Page 2 of 16
RT
T
resistance range
Voltage
NOTES:
1.
Guaranteed by design
PARAMETER
CLK
CS
UP
DN
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DI output low when off
R
Note 1
V
R
T
V
R
Note 1
DI output low
j
DCR
DCR
T
T
T
=65°C, Note 1
=25.5kΩ, R
=25.5kΩ, R
= 25.5k Ω
=20 mV, V
=20 mV, V
TEST CONDITION
CS1
CS1
O
O
Operating Junction Temperature .... -10°C to 150°C
Storage Temperature Range .......... -65°C to 150°C
ESD Rating ............HBM Class 2 JEDEC Standard
MSL Rating ..................................................Level 2
Reflow Temperature ..................................... 260°C
=1V,
=1V,
+R
+R
CS2
CS2
=600 Ω
=600 Ω,
o
C ≤ T
J
1.452
1250
-250
MIN
-0.5
≤ 125
435
2.4
0.5
0.5
75
o
C, 0.5 ≤ Vo ≤ 1.8 V, and
1.493
2000
TYP
25.5
350
512
DATA SHEET
1.535
MAX
+250
3000
3.10
+0.5
450
589
1.8
2.5
1.8
IR3721
4
07/14/08
UNIT
kHz
mV
mV
μA
kΩ
nA
%
%
V
V
Ω
V
V
V