CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
Electrical Specifications
These specifications apply for T
A
= -10°C to +100°C, unless otherwise stated. All typical specifications
T
A
= +25°C, VCC = 5V. 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.
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PARAMETER
VCC and PVCC
VCC Input Bias Current
VCC Shutdown Current
PVCC Shutdown Current
VCC POR THRESHOLD
Rising VCC POR Threshold Voltage
Falling VCC POR Threshold Voltage
REGULATION
Reference Voltage
System Accuracy
PWM
Switching Frequency
VO
VO Input Voltage Range
VO Input Impedance
VO Reference Offset Current
VO Input Leakage Current
ERROR AMPLIFIER
FB Input Bias Current
SREF
SREF Voltage
Soft-Start Current
I
VCC
I
VCCoff
I
PVCCoff
V
VCC_THR
V
VCC_THF
EN = 5V, VCC = 5V, FB = 0.55V, SREF<FB
EN = GND, VCC = 5V
EN = GND, PVCC = 5V
-
-
-
1.1
0.1
0.1
1.5
1.0
1.0
mA
µA
µA
4.40
4.10
4.49
4.22
4.60
4.35
V
V
V
REF(int)
PWM Mode = CCM
-
-0.75
0.50
-
-
+0.75
V
%
F
SW
V
VO
R
VO
I
VOSS
I
VOoff
I
FB
V
SREF
I
SS
PWM Mode = CCM
270
300
330
kHz
0
EN = 5V
V
ENTHR
< EN, SREF = Soft-Start Mode
EN = GND, VO = 3.6V
-
-
-
-
600
10
.1
3.6
-
-
-
V
k
µA
µA
EN = 5V, FB = 0.50V
-20
-
+50
nA
-
10
0.5
20
-
30
V
µA
FN6708 Rev 0.00
August 14, 2008
Page 4 of 17
ISL62870
Electrical Specifications
These specifications apply for T
A
= -10°C to +100°C, unless otherwise stated. All typical specifications
T
A
= +25°C, VCC = 5V. 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)
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PARAMETER
POWER GOOD
PGOOD Pull-down Impedance
R
PG_SS
R
PG_UV
R
PG_OV
R
PG_OC
PGOOD = 5mA Sink
PGOOD = 5mA Sink
PGOOD = 5mA Sink
PGOOD = 5mA Sink
PGOOD = 5V
75
75
50
25
-
-
95
95
65
35
0.1
5.0
150
150
90
50
1.0
-
A
mA
PGOOD Leakage Current
PGOOD Maximum Sink Current (Note 2)
GATE DRIVER
UGATE Pull-Up Resistance (Note 2)
UGATE Source Current (Note 2)
UGATE Sink Resistance (Note 2)
UGATE Sink Current (Note 2)
LGATE Pull-Up Resistance (Note 2)
LGATE Source Current (Note 2)
LGATE Sink Resistance (Note 2)
LGATE Sink Current (Note 2)
UGATE to LGATE Deadtime
LGATE to UGATE Deadtime
PHASE
PHASE Input Impedance
BOOTSTRAP DIODE
Forward Voltage
Reverse Leakage
CONTROL INPUTS
EN High Threshold Voltage
EN Low Threshold Voltage
EN Input Bias Current
EN Leakage Current
PROTECTION
OCP Threshold Voltage
OCP Reference Current
OCSET Input Resistance
OCSET Leakage Current
UVP Threshold Voltage
OVP Rising Threshold Voltage
OVP Falling Threshold Voltage
OTP Rising Threshold Temperature (Note 2)
OTP Hysteresis (Note 2)
NOTE:
I
PG
I
PG_max
R
UGPU
I
UGSRC
R
UGPD
I
UGSNK
R
LGPU
I
LGSRC
R
LGPD
I
LGSNK
t
UGFLGR
t
LGFUGR
R
PHASE
V
F
I
R
V
ENTHR
V
ENTHF
I
EN
I
ENoff
V
OCPTH
I
OCP
R
OCSET
I
OCSET
V
UVTH
V
OVRTH
V
OVFTH
T
OTRTH
T
OTHYS
200mA Source Current
UGATE - PHASE = 2.5V
250mA Sink Current
UGATE - PHASE = 2.5V
250mA Source Current
LGATE - GND = 2.5V
250mA Sink Current
LGATE - PGND = 2.5V
UGATE falling to LGATE rising, no load
LGATE falling to UGATE rising, no load
-
-
-
-
-
-
-
-
-
-
1.0
2.0
1.0
2.0
1.0
2.0
0.5
4.0
21
21
1.5
-
1.5
-
1.5
-
0.9
-
-
-
A
A
A
A
ns
ns
-
33
-
k
PVCC = 5V, IF = 2mA
V
R
= 25V
-
-
0.58
0.2
-
-
V
µA
2.0
-
EN = 5V
EN = GND
1.5
-
-
-
2.0
0.1
-
1.0
2.5
1.0
V
V
µA
µA
V
OCSET
- V
O
EN = 5.0V
EN = 5.0V
EN = GND
V
FB
= %V
SREF
V
FB
= %V
SREF
V
FB
= %V
SREF
-1.75
9.0
-
-
81
113
100
-
-
-
10
600
0
84
116
102
150
25
1.75
11
-
-
87
120
106
-
-
mV
µA
k
µA
%
%
%
°C
°C
2. Limits established by characterization and are not production tested.
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