參數(shù)資料
型號(hào): ISL6441
廠商: Intersil Corporation
英文描述: 1.4MHz Dual, Out-of-Phase, Step-Down PWM and Single Linear Controller(1.4MHz兩路,異相,降壓型PWM,外加一路線性控制器)
中文描述: 1.4MHz的雙通道,外的階段,降壓型PWM和線性控制器單(1.4MHz的兩路,異相,降壓型脈寬調(diào)制,外加一路線性控制器)
文件頁數(shù): 7/18頁
文件大?。?/td> 380K
代理商: ISL6441
7
FN9197.1
October 4, 2005
ISEN and CURRENT LIMIT
Full Scale Input Current (Note 9)
-
32
-
μ
A
Over-Current Threshold (Note 9)
ROCSET = 110k
-
64
-
μ
A
OCSET (Current Limit) Voltage
-
1.75
-
V
SOFT-START
Soft-Start Current
-
5
-
μ
A
PROTECTION
Thermal Shutdown
Rising
-
150
-
°C
Hysteresis
-
20
-
°C
NOTES:
2. Specifications at -40°C and 85°C are guaranteed by design, not production tested.
3. In normal operation, where the device is supplied with voltage on the V
IN
pin, the VCC_5V pin provides a 5V output capable of 60mA (min).
When the VCC_5V pin is used as a 5V supply input, the internal LDO regulator is disabled and the V
IN
input pin must be connected to the
VCC_5V pin. (Refer to the
Pin Descriptions
section for more details.)
4. This is the total shutdown current with VIN = VCC_5V = PVCC = 5V.
5. Operating current is the supply current consumed when the device is active but not switching. It does not include gate drive current.
6. The peak-to-peak sawtooth amplitude is production tested at 12V only; at 5V this parameter is guaranteed by design.
7. Guaranteed by design; not production tested.
8. Not production tested; guaranteed by characterization only.
9. Guaranteed by design. The full scale current of 32μA is recommended for optimum current sample and hold operation. See the
Feedback Loop
Compensation
Section below.
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
Schematic. V
IN
= 5.6V to 24V, or VCC_5V = 5V ±10%, T
A
= -40°C to 85°C (Note 2),
Typical values are at T
A
= 25°C
(Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ISL6441
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