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参数资料
| 型号： | ISL6845IUZ-T |
| 厂商： | Intersil |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST FLYBK ISO 8MSOP |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 2MHz |
| 占空比： | 50% |
| 电源电压： | 9 V ~ 16 V |
| 降压： | 是 |
| 升压： | 是 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 是 |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
Absolute Maximum Ratings
Supply Voltage, V DD . . . . . . . . . . . . . . . . . . . GND - 0.3V to +20.0V
OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to V DD + 0.3V
Signal Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 6.0V
Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1A
Operating Conditions
Temperature Range
ISL684xIx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Thermal Information
Thermal Resistance (Typical) θ JA (°C/W) θ JC (°C/W)
DFN Package (Notes 5, 6) . . . . . . . . . . 77 6
SOIC Package (Note 5) . . . . . . . . . . . . 100 N/A
MSOP Package (Notes 5, 7) . . . . . . . . 165 62
Maximum Junction Temperature . . . . . . . . . . . . . . .-55°C to +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below
ISL684xCx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
Supply Voltage Range (Typical, Note 8)
ISL6840, ISL6841. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5V to 14V
ISL6843, ISL6845. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V to 16V
ISL6842, ISL6844. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V to 18V
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:
5. 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.
6. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
7. For θ JC , the “case temp” location is taken at the package top center.
8. All voltages are with respect to GND.
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to “Functional Block Diagram” and
“Typical Application” schematic on pages 3 and 4. V DD = 15V (Note 12), R t = 10k Ω , C t = 3.3nF,
T A = -40°C to +105°C (Industrial) or T A = 0°C to +70°C (Commercial), Typical values are at T A = +25°C.
Boldface limits apply over the operating temperature range, -40°C to +105°C or 0°C to +70°C .
MIN
MAX
PARAMETER
TEST CONDITIONS
(Note 9)
TYP
(Note 9)
UNITS
UNDERVOLTAGE LOCKOUT
START Threshold (ISL6840, ISL6841)
START Threshold (ISL6843, ISL6845)
START Threshold (ISL6842, ISL6844)
STOP Threshold (ISL6840, ISL6841)
STOP Threshold (ISL6843, ISL6845)
STOP Threshold (ISL6843C Only)
STOP Threshold (ISL6842, ISL6844)
Hysteresis (ISL6840, ISL6841)
Hysteresis (ISL6843, ISL6845)
Hysteresis (ISL6842, ISL6844)
6.5
7.8
13.3
6.1
6.7
6.6
8.0
-
-
-
7.0
8.4
14.3
6.6
7.2
7.2
8.8
0.4
0.8
5.4
7.5
9.0
15.3
6.9
7.7
7.8
9.6
-
-
-
V
V
V
V
V
V
V
V
V
V
Start-up Current, I DD
Operating Current, I DD
Operating Supply Current, I D
V DD < START Threshold
(Note 10)
Includes 1nF GATE loading
-
-
-
60
3.3
4.1
100
4.0
5.5
μA
mA
mA
REFERENCE VOLTAGE
Overall Accuracy
Overall Accuracy (ISL6843C Only)
Long Term Stability
Fault Voltage
VREF Good Voltage
Hysteresis
Over line (V DD = 12V to 18V), load, temperature
T A = +125°C, 1000 hours (Note 11)
4.925
4.82
-
4.40
4.60
50
5.000
5.000
5
4.65
4.80
165
5.050
5.18
-
4.85
VREF - 0.05
250
V
V
mV
V
V
mV
6
FN9124.11
February 23, 2012
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