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參數(shù)資料
| 型號(hào)： | ISL6549CBZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Single 12V Input Supply Dual Regulator Synchronous Rectified Buck PWM and Linear Power Controller |
| 中文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MS-012AB, SOIC-14 |
| 文件頁數(shù)： | 4/18頁 |
| 文件大小： | 420K |
| 代理商： | ISL6549CBZ |
4
FN9168.2
September 22, 2006
ISL6549
Absolute Maximum Ratings
Thermal Information
VCC12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to +14V
PVCC5, VCC5 . . . . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to +7V
VCC5 (if used with external supply). . . . . . . . . . .GND - 0.3V to +6V
BOOT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to +27V
PHASE. . . . . . . . . . . . . . . . . . . . . . . . V
BOOT
- 7V to V
BOOT
+ 0.3V
V
BOOT
- V
PHASE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7V
UGATE. . . . . . . . . . . . . . . . . . . . . .V
PHASE
- 0.3V to V
BOOT
+ 0.3V
LGATE . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to PVCC5 + 0.3V
LDO_DR . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VCC12 + 0.3V
FB, LDO_FB, COMP, FS_DIS . . . . . . . GND - 0.3V to VCC5 + 0.3V
ESD Classification
Human Body Model (Per JESD22-A114C) . . . . . . . . . . . . . .Class 2
Machine Model (Per EIA/JESD22-A115-A) . . . . . . . . . . . . . .Class B
Charge Device Model (Per JESD22-C101C). . . . . . . . . . . . Class IV
Thermal Resistance
SOIC Package (Note 1) . . . . . . . . . . . .
QFN Package (Notes 2, 3). . . . . . . . . .
QSOP Package (Note 1) . . . . . . . . . . .
Maximum Junction Temperature (Plastic Package) . . . . . . +150°C
Maximum Storage Temperature Range. . . . . . . . . -65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . +300°C
(SOIC - Lead Tips Only)
θ
JA
(°C/W)
105
52
110
θ
JC
(°C/W)
N/A
14
N/A
Recommended Operating Conditions
External Supply Voltage on VCC5. . . . . . . . . . . . . . . . . . +5.0V ±5%
Supply Voltage on VCC12. . . . . . . . . . . . . . . . . . . . . . . +12V ±10%
Ambient Temperature Range (C). . . . . . . . . . . . . . . . . . 0°C to 70°C
Ambient Temperature Range (I) . . . . . . . . . . . . . . . . -40°C to +85°
Junction Temperature Range. . . . . . . . . . . . . . . . . . . 0°C to +125°C
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:
1.
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.
2.
θ
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.
3. For
θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Recommended Operating Conditions, unless otherwise noted. VCC12 = 12V
Temperature = 0 to +70°C (typical = +25°C) for Commercial; Temperature = -40 to + 85°C (typical = +25°C) for
Industrial. Refer to Block Diagram, Simplified Power System Diagram, and Typical Application Schematic.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
VCC SUPPLY CURRENT
Nominal Supply Current VCC12 (disabled)
I
CC12 dis
UGATE, LGATE and LDO_DR open;
FS_DIS = GND
2
3
mA
Nominal Supply Current VCC5 (disabled)
I
CC5 dis
UGATE, LGATE and LDO_DR open;
FS_DIS = GND (Note 4)
5
7.5
mA
Nominal Supply Current VCC12
(includes PVCC5 current)
I
CC12
UGATE, LGATE and LDO_DR open;
F
OSC
= 620kHz
12
18
mA
Nominal Supply Current VCC5
I
CC5
UGATE, LGATE and LDO_DR open;
F
OSC
= 620kHz
4
6
mA
Maximum PVCC5 Current Available (Note 5)
I
PVCC5
100
mA
VCC12 to PVCC5 Current Limit (Note 5)
I
PVCC5CL
150
mA
PVCC5 Voltage
V
PVCC5
ISL6549C; No external load
4.95
5.25
5.8
V
ISL6549I; No external load
4.85
5.25
5.8
POWER-ON RESET
Rising VCC5 Threshold
VCC12 = 12V
3.7
4.2
4.5
V
Falling VCC5 Threshold
VCC12 = 12V
3.3
3.8
4.1
V
Rising VCC12 Threshold
VCC5 = 5V
8.8
9.5
10.0
V
Falling VCC12 Threshold
VCC5 = 5V
7.0
7.5
8.0
V
OSCILLATOR AND SOFT-START
Switching Frequency
F
OSC
ISL6549C; R
FS_DIS
= 45.3k
540
620
700
kHz
ISL6549I; R
FS_DIS
= 45.3k
525
620
700
kHz
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