参数资料
| 型号： | ISL78225ANEZ-T |
| 厂商： | Intersil |
| 文件页数： | 7/22页 |
| 文件大小： | 0K |
| 描述： | IC PWM CONTROLLER |
| 标准包装： | 1,000 |
| 系列： | * |
ISL78225
Absolute Maximum Ratings
Supply Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND-0.3V to +45V
All ISEN_ Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V IN -5V to V IN +0.3V
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND-0.3V to +6V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND-0.3V to V CC +0.3V
ESD Rating
Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . .2.5kV
Machine Model (Tested per JESD-A115-A) . . . . . . . . . . . . . . . . . . . 200V
Charge Device Model (Tested per JESD22-C101C). . . . . . . . . . . . . 1.5kV
Latch Up (Tested per JESD78B, Class II, Level A) . . . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance (Typical) θ JA (°C/W) θ JC (°C/W)
44 Ld EP-TQFP Package (Notes 4, 5) . . . . . . 28 2.5
Maximum Junction Temperature . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
Operating Conditions
Voltage at VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.6V to +40V
All ISEN_ Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIN-5V to VIN+0.3V
Voltage at VCC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±5%
Ambient Temperature (Auto) . . . . . . . . . . . . . . . . . . . . . . .-40°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. 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
5. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Operating Conditions: V IN = 12V, T A = -40°C to +125°C, unless otherwise specified. Typical specifications are
at T A = +25°C. Boldface limits apply over the operating temperature range, -40°C to +125°C.
MIN
MAX
PARAMETER
TEST CONDITIONS
(Note 6)
TYP
(Note 6)
UNITS
SUPPLY INPUT
Input Voltage Range
Input Supply Current (Normal Mode)
Input Supply Current (Shutdown Mode)
V IN = 12V, R FS = 158k ? (For f S = 250kHz) , EN = 5V
V IN = 12V, R FS = 158k ? (For f S = 250kHz) , EN = 0V
5.6
12
8
40
12
10
V
mA
μA
INTERNAL LINEAR REGULATOR
LDO Output Voltage (VCC Pin)
LDO Current Limit (VCC pin)
V IN > 5.6V, C L = 4.7μF from VCC to GND, I VCC < 50mA
VCC = 3V, C L = 4.7μF from VCC to GND
4.75
5
200
(Note 7)
5.25
V
mA
POWER-ON RESET (POR) AND ENABLE
POR Threshold
EN Threshold
VCC Rising
VCC Falling
Rising
4.4
4.1
1.1
4.5
4.2
1.2
4.6
4.3
1.3
V
V
V
OSCILLATOR
Hysteresis
70
mV
Accuracy of Switching Frequency Setting
Adjustment Range of Switching Frequency
R FS = 158k ? from FS to GND
225
75
250
275
1000
kHz
kHz
FS pin voltage
SOFT-START
1
V
Soft-Start Current
Soft-Start Pre-Bias Voltage Range
Soft-Start Pre-Bias Voltage Accuracy
C SS = 2.2nF from SS to GND
V FB = 500mV
4
0
-25
5
6
2
25
μA
V
mV
Soft-Start Clamp Voltage
REFERENCE VOLTAGE
3.4
V
System Accuracy
FB Pin Input Bias Current
V REF2 Pin Input Bias Current
-40°C to +125°C, measure at FB pin, V REF2 > 2.5V
V FB = 2V, V REF2 > 2.5V
V REF2 = 1.6V
1.98
-1
-1
2
2.02
1
1
V
μA
μA
7
FN7909.3
February 11, 2014
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