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ISL6726 Datasheet(PDF) 8 Page - Renesas Technology Corp

Part No. ISL6726
Description  Active Clamp Forward PWM Controller
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Maker  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
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ISL6726 Datasheet(HTML) 8 Page - Renesas Technology Corp

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ISL6726
FN7654 Rev 0.00
Page 8 of 21
January 31, 2011
IOUT Buffer Gain
TA = +25°C
3.90
4.00
4.12
V/V
IOUT VOH
VOH, (VOHILOAD=0µA - VOHILOAD=-300µA), CS = 0.5V,
ISET = 1.00V
0.05
0.2
V
IOUT VOL
ILOAD = 100µA, CS = 0V, ISET = 1.00V
0.05
0.1
0.15
V
SLOPE COMPENSATION
Charge Current
SLOPE = 2V
-90
-100
-110
µA
Slope Compensation Gain
Fraction of slope voltage added to CS
0.190
0.200
0.210
V/V
SLOPE Discharge Device, rDS(ON)
50
Ω
SLOPE Range, Linear Response
02.5
V
PULSE WIDTH MODULATOR
Minimum Duty Cycle
MODE = 5V, VERR < 0.6V
0
ns
MODE = 0V, VERR < 0.6V
270
300
350
ns
Maximum Duty Cycle
4.8 < VERR < VREF, UV = 4.2V, DCLIM > 4.0V
76
80
84
%
RTC = 25.5k
CT = 220pF
80
%
SS to PWM Comparator Input Gain
0.23
0.25
0.27
V/V
VERR to PWM Comparator Input Gain
0.28
0.30
0.32
V/V
VERR to PWM Comparator Input Offset
0.60
0.80
1.00
V
OUTM TO OUTAC DELAY TIMING
DELAY Gain
Overlap, TA = +25°C
1.54
1.83
2.11
ns/kΩ
Non-Overlap, TA = +25°C
1.54
1.79
2.11
ns/kΩ
DELAY Range
50
500
ns
DELAY Disable, High
4.9
V
DELAY Disable, Low
0.100
V
OSCILLATOR
Frequency Accuracy
TA = +25°C
326
338
349
kHz
Frequency Variation with VDD
TA = +105°C, |(F20V - F8V)/F8V|, UV = 2.00V (Note 7)
0.1
0.3
%
TA = +25°C, |(F20V - F8V)/F8V|, UV = 2.00V
0.2
0.6
%
TA = -40°C, |(F20V - F8V)/F8V|, UV = 2.00V (Note 7)
0.6
8.0
%
Frequency Variation with UV
TA = +25°C, |(F4.25V - F2.00V)/F2.00V|
VDD = 8V
0.1
1.5
%
VDD = 20V
0.3
5.2
%
Temperature Stability
UV = 2.0V, VDD = 8V
0.5
1.5
%
Charge Current Gain
RTC = 10.0kΩ
100kΩ
1.88
2.0
2.12
µA/µA
Discharge Current Gain
RTC = 10.0kΩ
100kΩ
6.0
7.2
8.2
µA/µA
CT Valley Voltage
Static operation
0.75
0.80
0.85
V
CT Peak Voltage
Static operation
UV = 2.00V
2.30
2.40
2.50
V
UV = 4.00V
3.80
4.00
4.20
V
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to the Block Diagram on page 4 and the
Typical Application schematics on pages 5 and 6. 8V < VD < 20V, RTC = 10.0kΩ, CT = 470pF, TA = -40°C to +105°C, Typical values are at TA = +25°C.
Boldface limits apply over the operating temperature range, -40°C to +105°C.
(Continued)
PARAMETER
TEST CONDITIONS
MIN
(Note 7)
TYP
MAX
(Note 7)
UNITS


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