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參數(shù)資料
| 型號(hào)： | ISL6225CAZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Dual Mobile-Friendly PWM Controller with DDR Memory Option |
| 中文描述： | DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | PLASTIC, LEAD FREE, SSOP-28 |
| 文件頁數(shù)： | 3/19頁 |
| 文件大小： | 522K |
| 代理商： | ISL6225CAZ |
3
FN9049.7
December 28, 2004
Absolute Maximum Ratings
Thermal Information
Bias Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+ 6.5V
Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +27.0V
PHASE, UGATE Voltage . . . . . . . . . . . . . . GND-5V (Note 3) to 33V
BOOT, ISEN Voltage . . . . . . . . . . . . . . . . . . . . GND-0.3V to +33.0V
BOOT with respect to PHASE . . . . . . . . . . . . . . . . . . . . . . . . .+ 6.5V
All Other Pins. . . . . . . . . . . . . . . . . . . . . . GND -0.3V to V
CC
+ 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Class 2
Recommended Operating Conditions
Bias Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.0V
±
5%
Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . .+5.0V to +24.0V
Ambient Temperature Range. . . . . . . . . . . . . . . . . . . .-10°C to 85°C
Junction Temperature Range. . . . . . . . . . . . . . . . . . .-10°C to 125°C
Thermal Resistance (Typical, Note 4)
SSOP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature (Plastic Package) . . . . . . . .150°C
Maximum Storage Temperature Range. . . . . . . . . . .-65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300°C
(SSOP - Lead Tips Only)
θ
JA
(°C/W)
78
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
3. 200ns transient.
4.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
Recommended Operating Conditions, Unless Otherwise Noted.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
V
CC
SUPPLY
Bias Current
I
CC
LGATEx, UGATEx Open, VSENx forced above
regulation point, DDR = 0, VIN > 5V
-
2.2
3.2
mA
Shut-down Current
I
CCSN
-
-
30
μ
A
V
CC
UVLO
Rising V
CC
Threshold
V
CCU
4.3
4.65
4.75
V
Falling V
CC
Threshold
V
CCD
4.1
4.35
4.45
V
V
IN
Input Voltage Pin Current (Sink)
I
VIN
10
-
30
μ
A
Input Voltage Pin Current (Source)
I
VINO
-
-15
-30
μ
A
Shut-down Current
I
VINS
-
-
1
μ
A
OSCILLATOR
PWM1 Oscillator Frequency
F
C
255
300
345
kHz
Ramp Amplitude, pk-pk
V
R1
V
IN
= 16V, by design
-
2
-
V
Ramp Amplitude, pk-pk
V
R2
V
IN
= 5V, by design
-
1.25
-
V
Ramp Offset
V
ROFF
By design
-
0.5
-
V
Ramp/V
IN
Gain
G
RB1
V
IN
≥
3V, by design
-
125
-
mV/V
Ramp/V
IN
Gain
G
RB2
1
≤
V
IN
≤
3V, by design
-
250
-
mV/V
REFERENCE AND SOFT-START
Internal Reference Voltage
V
REF
-
0.9
-
V
Reference Voltage Accuracy
-1.0
-
+1.0
%
Soft-Start Current During Start-up
I
SOFT
-
-5
-
μ
A
Soft-Start Complete Threshold
V
ST
By design
-
1.5
-
V
ISL6225
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