ISL6742AAZA Intersil, ISL6742AAZA Datasheet - Page 17
![IC CTRLR PWM DOUBLE ENDED 16QSOP](/photos/6/86/68635/20-16-qsop_sml.jpg)
ISL6742AAZA
Manufacturer Part Number
ISL6742AAZA
Description
IC CTRLR PWM DOUBLE ENDED 16QSOP
Manufacturer
Intersil
Datasheet
1.ISL6742AAZA.pdf
(18 pages)
Specifications of ISL6742AAZA
Pwm Type
Voltage/Current Mode
Number Of Outputs
4
Frequency - Max
2MHz
Duty Cycle
100%
Voltage - Supply
9 V ~ 16 V
Buck
No
Boost
No
Flyback
No
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
No
Operating Temperature
-40°C ~ 105°C
Package / Case
16-QSOP
Frequency-max
2MHz
Peak Reflow Compatible (260 C)
Yes
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ISL6742AAZA-T
Manufacturer:
Intersil
Quantity:
2 000
Part Number:
ISL6742AAZA-T
Manufacturer:
INTERSIL
Quantity:
20 000
Fault Conditions
A fault condition occurs if VREF or VDD fall below their
undervoltage lockout (UVLO) thresholds or if the thermal
protection is triggered. When a fault is detected, the soft-start
capacitor is quickly discharged, and the outputs are disabled
low. When the fault condition clears and the soft-start voltage
is below the reset threshold, a soft-start cycle begins.
An overcurrent condition is not considered a fault and does
not result in a shutdown.
17
ISL6742
Thermal Protection
Internal die over temperature protection is provided. An
integrated temperature sensor protects the device should
the junction temperature exceed +140°C. There is
approximately +15°C of hysteresis.
Ground Plane Requirements
Careful layout is essential for satisfactory operation of the
device. A good ground plane must be employed. VDD and
VREF should be bypassed directly to GND with good high
frequency capacitance.
References
[1] Ridley, R., “A New Continuous-Time Model for Current
Mode Control”, IEEE Transactions on Power
Electronics, Vol. 6, No. 2, April 1991.
October 31, 2008
FN9183.2