© 2015 International Rectifier
Electrical Characteristics
VHV=100V, VCC=14V, CVCC=0.1µF, CHVS=22nF, and TA = 25°C unless otherwise specified. The output
voltage and current (VO and IO) parameters are referenced to COM and are applicable to OUT.
Symbol Definition Min Typ Max Units Test Conditions
Low Voltage Supply Characteristics
V
CLAMP
V
CC
Zener Clamp Voltage
14.6 15.6 16.6 V
I
CC
= 10mA
I
QCCUV
Micropower Startup V
CC
Supply Current
--- 250 --- µA
V
CC
= 6V
High Voltage Regulator Characteristics
VCC Regulation Voltage 8.9 9.9 10.9 V
I
REG_MAX
Maximum Regulator Current --- 3 5 mA Vcc = 0V
V
HVMIN
Minimum HV required for regulator
--- 60 --- V
High Side Voltage Supply Characteristics
V
HVS+
High Side UVLO Positive Threshold
8.3 9.3 10.3
V
V
HVS-
High Side UVLO Negative Threshold
6.3 7.3 8.3
Control Characteristics
f
MAX
Maximum Output Frequency ---
150
---
kHz
d
MAX
Buck Duty Cycle --- 100 --- %
V
CS
Current Regulation Threshold
††
--- 0.5 --- V
V
CS-HYS
Current Regulation Hysteresis --- 100 --- mV
Dimming Characteristics
I
RAMP
RAMP Pin Charging Current --- 15 ---
µA
V
RAMP+
RAMP Pin Shutdown Threshold --- 2.0 ---
V
RAMP-
RAMP Pin Re-start Threshold --- 0.2 ---
d
PWM
Dimming Duty Cycle 0 100
%
†
VCC can be supplied from an alternative source for the IRS2980S to operate with bus voltages
below this level.
††
Various tolerances on
V
CS
are available upon request
