7
FN9197.3
May 26, 2009
ISEN and CURRENT LIMIT
Full Scale Input Current (Note 9) - 32 - µA
Overcurrent Threshold (Note 9) R
OCSET
= 110kΩ -64-µA
OCSET (Current Limit) Voltage - 1.75 - V
SOFT-START
Soft-Start Current -5-µA
PROTECTION
Thermal Shutdown Rising - 150 - °C
Hysteresis - 20 - °C
NOTES:
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” on page 10 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
7. Limits should be considered typical and are not production tested.
8. Limits established by characterization and are not production tested.
9. Established by characterization. The full scale current of 32µA is recommended for optimum current sample and hold operation. See the
“Feedback Loop Compensation” on page 13.
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 3 and “Typical
Application Schematic” on page 4. V
IN
= 5.6V to 24V, or VCC_5V = 5V ±10%, T
A
= -40°C to +85°C, Typical
values are at T
A
= +25°C. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested. (Continued)
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
ISL6441
