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ISL6721 Datasheet(PDF) 8 Page - Renesas Technology Corp

Part # ISL6721
Description  Flexible Single-Ended Current Mode PWM Controller
PDF  23 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL6721 Datasheet(HTML) 8 Page - Renesas Technology Corp

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ISL6721
FN9110 Rev 9.00
Page 8 of 23
May 20, 2016
SOFT-START
Charging Current
SS = 2V
-40
-55
-70
µA
Charged Threshold Voltage
4.26
4.50
4.74
V
Initial Overcurrent Discharge Current
Sustained OC Threshold < SS <
Charged Threshold
30
40
55
µA
Overcurrent Shutdown Threshold Voltage
Charged Threshold minus,
TA = +25°C
0.095
0.125
0.155
V
Fault Discharge Current
SS = 2V
0.25
1.00
-
mA
Reset Threshold Voltage
TA = +25°C
0.22
0.27
0.31
V
SLOPE COMPENSATION
Charge Current
SLOPE = 2V, 0°C to +105°C
-40°C to +105°C
-45
-41
-53
-53
-65
-65
µA
Slope Compensation Gain
Fraction of slope voltage added to
ISENSE, TA = +25°C
0.097
-
0.103
V/V
Fraction of slope voltage added to
ISENSE (Note 6)
0.082
-
0.118
V/V
Discharge Voltage
VRTCT = 4.5V
-
0.1
0.2
V
GATE OUTPUT
Gate Output Limit Voltage
VC = 20V, CGATE = 1nF,
IOUT = 0mA
11.0
13.5
16.0
V
Gate VOH
VC - GATE, VC = 10V,
IOUT = 150mA
-1.5
2.2
V
Gate VOL
GATE - PGND, IOUT = 150mA
IOUT = 10mA
-1.2
0.6
1.5
0.8
V
Peak Output Current
VC = 20V, CGATE = 1nF (Note 8)-
1.0
-
A
Output “Faulted” Leakage
VC = 20V, UV = 0V, GATE = 2V
1.2
2.6
-
mA
Rise Time
VC = 20V, CGATE = 1nF
1V < GATE < 9V
-60
100
ns
Fall Time
VC = 20V, CGATE = 1nF
1V < GATE < 9V
-15
40
ns
Minimum ON-Time
ISET = 0.5V; VFB = 0V; VC = 11V
ISENSE to GATE w/10:1 Divider
RTCT = 4.75V through 1kΩ
(Note 8)
-
-
110
ns
OVERCURRENT PROTECTION
Minimum ISET Voltage
-
-
0.35
V
Maximum ISET Voltage
1.2
-
-
V
ISET Bias Current
VISET = 1.00V
-1.0
-
1.0
µA
Restart Delay
TA = +25°C
150
295
445
ms
OV AND UV VOLTAGE MONITOR
Overvoltage Threshold
2.4
2.5
2.6
V
Undervoltage Fault Threshold
1.38
1.45
1.52
V
Undervoltage Clear Threshold
1.41
1.53
1.62
V
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Functional Block Diagram” on page 3
and “Typical Boost Converter Application Schematic” on page 5. 9V < VCC = VC < 20V, RT = 11kΩ, Ct = 330 pF, TA = -40°C to +105°C (Note 6), Typical
values are at TA = +25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT



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