ISL6753
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
schematic. 9 V < VDD< 20 V, RTD = 10.0kΩ, CT = 470pF, T = -40°C to 105°C (Note 3), Typical values are at
A
T
= 25°C (Continued)
A
PARAMETER
TEST CONDITIONS
MIN
-5.0
6.5
TYP
MAX
-2.0
8.0
UNITS
µA
Bias Current
V
= 0.3V
-
-
RAMP
Clamp Voltage
(Note 4)
V
PULSE WIDTH MODULATOR
Minimum Duty Cycle
VERR < 0.6V
-
-
0
%
%
Maximum Duty Cycle (per half-cycle)
VERR = 4.20V, V
= 0V,
RAMP
V
= 0V (Note 5)
-
-
-
94
97
99
-
-
-
CS
RTD = 2.00kΩ, CT = 220pF
RTD = 2.00kΩ, CT = 470pF
Zero Duty Cycle VERR Voltage
VERR to PWM Comparator Input Offset
VERR to PWM Comparator Input Gain
Common Mode (CM) Input Range
ERROR AMPLIFIER
0.85
0.7
0.31
0
-
0.8
0.33
-
1.20
0.9
V
V
T
= 25°C
A
0.35
V/V
V
(Note 4)
V
SS
Input Common Mode (CM) Range
GBWP
(Note 4)
(Note 4)
0
5
-
VREF
-
V
MHz
V
-
-
VERR VOL
I
I
= 2mA
= 0mA
-
0.4
LOAD
LOAD
VERR VOH
4.20
0.8
-
-
V
VERR Pull-Up Current Source
EA Reference
VERR = 2.5V
= 25°C
1.0
0.600
0.600
1.3
mA
V
T
0.594
0.590
0.606
0.612
A
EA Reference + EA Input Offset Voltage
OSCILLATOR
V
Frequency Accuracy, Overall
(Note 4)
165
-10
-
183
0.3
201
+10
1.7
kHz
%
Frequency Variation with VDD
Temperature Stability
T
= 25°C, (F
- - F
)/F
0°C 0°C
%
A
20V
10V 10V
VDD = 10V, |F
- F |/F
-
-
4.5
1.5
-
-
%
-40°C
|/F
|F
0°C
- F
105°C 25°C
(Note 4)
= 25°C
Charge Current
T
-193
19
-200
20
-207
23
µA
A
Discharge Current Gain
CT Valley Voltage
CT Peak Voltage
CT Pk-Pk Voltage
RTD Voltage
µA/µA
Static Threshold
Static Threshold
Static Value
0.75
2.75
1.92
1.97
0
0.80
2.80
2.00
2.00
-
0.88
2.88
2.05
2.03
2
V
V
V
V
RESDEL Voltage Range
V
CTBUF Gain (V
/V
CTBUFp-p CTp-p
)
V
V
= 0.8V, 2.6V
= 0.8V
1.95
0.34
-
2.0
0.40
-
2.05
0.44
0.10
V/V
V
CT
CT
CTBUF Offset from GND
CTBUF VOH
∆V(I
V
= 0mA, I
= -2mA),
= 0mA),
V
LOAD
= 2.6V
LOAD
LOAD
CT
CTBUF VOL
∆V(I
V
= 2mA, I
-
-
0.10
V
LOAD
= 0.8V
CT
FN9182.1
March 10, 2005
5
INTERSIL [ Intersil ]
