ISL8033 查看數據表（PDF） - Intersil
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ISL8033 Datasheet PDF : 18 Pages
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ISL8033, ISL8033A
Electrical Specifications Unless otherwise noted, the typical specifications are measured at the following conditions:
TA = -40°C to +85°C, VIN = 3.6V, EN1 = EN2 = VDD, L = 1.5µH, C1 = C2 = C4 = 2x22µF, IOUT1 = IOUT2 = 0A to 3A. Typical values are at TA = +25°C.
Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7)
UNITS
Positive Peak Overcurrent Limit
Negative Peak Overcurrent Limit
LX1, LX2
Ipoc1
Ipoc2
Ipoc1
Ipoc2
Ipoc1
Ipoc2
Inoc1
Inoc2
ISET = VDD
ISET = Float
ISET = GND
4.1 4.8 5.5
A
4.1 4.8 5.5
A
4.1 4.8 5.5
A
2.7 3.3 3.9
A
2.7 3.3 3.9
A
2.7 3.3 3.9
A
-3.5 -2.5 -1.5
A
-3.5 -2.5 -1.5
A
P-Channel MOSFET ON-Resistance
N-Channel MOSFET ON-Resistance
LX_ Maximum Duty Cycle
VIN = 6V, IO = 200mA
VIN = 2.85V, IO = 200mA
VIN = 6V, IO = 200mA
VIN = 2.85V, IO = 200mA
50
75
mΩ
70 100
mΩ
50
75
mΩ
70 100
mΩ
100
%
PWM Switching Frequency
FS ISL8033
ISL8033A
0.88 1.1 1.32
MHz
2.15 2.5 2.85
MHz
Synchronization Range
Channel 1 to Channel 2 Phase Shift
FSYNC ISL8033 (Note 6)
Rising edge to rising edge timing
2.64
6
MHz
180
°
LX Minimum On-Time
SYNC = High (forced PWM mode)
140
ns
Soft Discharge Resistance
LX Leakage Current
RDIS
EN = LOW
Pulled up to 6V
80 100 120
Ω
0.1
1
µA
PG1, PG2
Output Low Voltage
Sinking 1mA, VFB = 0.7V
0.3
V
PG_ Pin Leakage Current
PG = VIN = 6V
0.01 0.1
µA
Internal PGOOD Low Rising Threshold
Percentage of nominal regulation voltage
89.5 92 94.5
%
Internal PGOOD Low Falling Threshold
Percentage of nominal regulation voltage
85
88
91
%
Delay Time (Rising Edge)
1
ms
Internal PGOOD Delay Time (Falling Edge)
7
10
µs
EN1, EN2, SYNC
Logic Input Low
0.4
V
Logic Input High
1.5
V
SYNC Logic Input Leakage Current
Enable Logic Input Leakage Current
Thermal Shutdown
ISYNC Pulled up to 6V
IEN Pulled up to 6V
0.1
1
µA
0.1
1
µA
150
°C
Thermal Shutdown Hysteresis
25
°C
NOTES:
6. The operational frequency per switching channel will be half of the SYNC frequency.
7. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
7
FN6854.2
March 24, 2011
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