ISL62881 查看數據表（PDF） - Renesas Electronics
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产品描述 (功能)
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ISL62881 Datasheet PDF : 35 Pages
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ISL62881, ISL62881B
Absolute Maximum Ratings
Supply Voltage, VDD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +28V
Boot Voltage (BOOT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
Boot to Phase Voltage (BOOT-PHASE) . . . . . . . . . . . . . . . . -0.3V to +7V(DC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +9V(<10ns)
Phase Voltage (PHASE) . . . . . . . . . . . . . . . . -7V (<20ns Pulse Width, 10µJ)
UGATE Voltage (UGATE) . . . . . . . . . . . . . . . . . . . . PHASE-0.3V (DC) to BOOT
. . . . . . . . . . . . . . . . . . . . . PHASE-5V (<20ns Pulse Width, 10µJ) to BOOT
LGATE Voltage (LGATE). . . . . . . . . . . . . . . . . . . . . . -0.3V (DC) to VDD + 0.3V
. . . . . . . . . . . . . . . . . . . . . -2.5V (<20ns Pulse Width, 5µJ) to VDD + 0.3V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VDD + 0.3V)
Open Drain Outputs, PGOOD, VR_TT#, CLK_EN# . . . . . . . . . . . . . . -0.3V to +7V
Thermal Information
Thermal Resistance (Typical, Notes 4, 5)
JA (°C/W) JC (°C/W)
28 Ld TQFN Package . . . . . . . . . . . . . . . . . .
40
3
32 Ld TQFN Package . . . . . . . . . . . . . . . . . .
32
3
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Supply Voltage, VDD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±5%
Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +4.5V to 25V
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-10°C to +100°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-10°C to +125°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief TB379
5. For JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Operating Conditions: VDD = 5V, TA = -10°C to +100°C, fSW = 300kHz, unless otherwise noted. Boldface
limits apply over the operating temperature range, -10°C to +100°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
INPUT POWER SUPPLY
+5V Supply Current
IVDD
VR_ON = 1V
VR_ON = 0V
3.2 4.0 mA
1
µA
Battery Supply Current
VIN Input Resistance
Power-On-Reset Threshold
SYSTEM AND REFERENCES
IVIN
RVIN
PORr
PORf
VR_ON = 0V
VR_ON = 1V
VDD rising
VDD falling
1
µA
900
k
4.35 4.5
V
4.00 4.15
V
System Accuracy
%Error (VCC_CORE) No load; closed loop, active mode range
VID = 0.75V to 1.50V
-0.5
+0.5 %
VID = 0.5V to 0.7375V
-8
+8 mV
VID = 0.3V to 0.4875V
-15
+15 mV
VBOOT
Maximum Output Voltage
Minimum Output Voltage
RBIAS Voltage
CHANNEL FREQUENCY
Nominal Channel Frequency
Adjustment Range
VCC_CORE(max)
VCC_CORE(min)
VID = [0000000]
VID = [1111111]
RBIAS = 147k
fSW(nom)
RFSET = 7k, VCOMP = 1V
1.0945 1.100 1.1055 V
1.500
V
0
V
1.45 1.47 1.49 V
295 310 325 kHz
200
500 kHz
AMPLIFIERS
Current-Sense Amplifier Input
Offset
IFB = 0A
-0.15
+0.15 mV
Error Amp DC Gain
Error Amp Gain-Bandwidth
Product
Av0
GBW
CL = 20pF
90
dB
18
MHz
FN6924 Rev 3.00
June 16, 2011
Page 5 of 35
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