6
FN9181.3
October 31, 2008
Maximum Duty Cycle (Per Half-cycle) VERR = 4.20V, V
CS
= 0V (Note 4) - 94 - %
RTD = 2.00kΩ, CT = 220pF - 97 - %
RTD = 2.00kΩ, CT = 470pF - 99 - %
Zero Duty Cycle VERR Voltage 0.85 - 1.20 V
VERR to PWM Comparator Input Offset T
A
= +25°C 0.7 0.8 0.9 V
VERR to PWM Comparator Input Gain 0.31 0.33 0.35 V/V
Common Mode (CM) Input Range (Note 3) 0 - 4.45 V
OSCILLATOR
Frequency Accuracy, Overall (Note 3) 165 183 201 kHz
-10 - 10 %
Frequency Variation with VDD T
A
= +25°C, (F
20V
- - F
10V
)/F
10V
-0.31.7%
Temperature Stability VDD = 10V, |F
-40°C
- F
0°C
|/F
0°C
-4.5-%
|F
0°C
- F
105°C
|/F
25°C
(Note 3) - 1.5 - %
Charge Current T
A
= +25°C -193 -200 -207 µA
Discharge Current Gain 19 20 23 µA/µA
CT Valley Voltage Static Threshold 0.75 0.80 0.88 V
CT Peak Voltage Static Threshold 2.75 2.80 2.88 V
CT Pk-Pk Voltage Static Value 1.92 2.00 2.05 V
RTD Voltage 1.97 2.00 2.03 V
RESDEL Voltage Range 0 - 2.00 V
CTBUF Gain (V
CTBUFp-p
/V
CTp-p
)V
CT
= 0.8V, 2.6V 1.95 2.0 2.05 V/V
CTBUF Offset from GND V
CT
= 0.8V 0.34 0.40 0.44 V
CTBUF VOH ΔV(I
LOAD
= 0mA, I
LOAD
= -2mA),
V
CT
= 2.6V
- - 0.10 V
CTBUF VOL ΔV(I
LOAD
= 2mA, I
LOAD
= 0mA),
V
CT
= 0.8V
- - 0.10 V
OUTPUT
High Level Output Voltage (VOH) I
OUT
= -10mA, VDD - VOH - 0.5 1.0 V
Low Level Output Voltage (VOL) I
OUT
= 10mA, VOL - GND - 0.5 1.0 V
Rise Time C
OUT
= 220pF, VDD = 15V (Note 3) - 110 200 ns
Fall Time C
OUT
= 220pF, VDD = 15V (Note 3) - 90 150 ns
UVLO Output Voltage Clamp VDD = 7V, I
LOAD
= 1mA (Note 5) - - 1.25 V
Output Delay/Advance Range
OUTLLN/OUTLRN relative to OUTLL/OUTLR
V
ADJ
= 2.50V (Note 3) - - 3 ns
V
ADJ
< 2.425V -40 - -300 ns
V
ADJ
> 2.575V 40 - 300 ns
Delay/Advance Control Voltage Range
OUTLLN/OUTLRN relative to OUTLL/OUTLR
OUTLxN Delayed 2.575 - 5.000 V
OUTLxN Advanced 0 - 2.425 V
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Functional Block Diagram” on page 2
and “Typical Application - High Voltage Input Primary Side Control ZVS Full-Bridge Converter” on page 3 and
“Typical Application - High Voltage Input Secondary Side Control ZVS Full-Bridge Converter” on page 4.
9V < VDD < 20V, RTD = 10.0kΩ, CT = 470pF, T
A
= -40°C to +105°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
ISL6752
