ISL85415A Ver la hoja de datos (PDF) - Intersil
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ISL85415A Datasheet PDF : 24 Pages
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ISL85415A
Electrical Specifications TA = -40°C to +85°C, VIN = 3V to 36V, unless otherwise noted. Typical values are at TA = +25°C. Boldface limits
apply over the junction temperature range, -40°C to +85°C (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 8)
MAX
TYP
(Note 8) UNITS
POWER-GOOD
Lower PG Threshold - VFB Rising
90
94
%
Lower PG Threshold - VFB Falling
82.5
86
%
Upper PG Threshold - VFB Rising
116.5
120
%
Upper PG Threshold - VFB Falling
107
112
%
PG Propagation Delay
PG delay measured after VOUT reaches
1.1
2
2.9
ms
regulation
PG Low Voltage
PG Low Voltage without VIN present
TRACKING AND SOFT-START
ISINK = 3mA, EN = VCC, VFB = 0V
ISINK = 0.5mA, VIN = 0V
0.05
0.3
V
0.6
0.8
V
Soft-Start Charging Current
Internal Soft-Start Ramp Time
FAULT PROTECTION
ISS
EN/SS = VCC
1.5
2
2.5
µA
1.7
2.4
3.1
ms
Thermal Shutdown Temperature
Current Limit Blanking Time
TSD
THYS
tOCON
Rising Threshold
Hysteresis
135
°C
20
°C
17
Clock
pulses
Overcurrent and Auto Restart Period
Positive Peak Current Limit
tOCOFF
IPLIMIT (Note 7)
8
SS cycle
0.8
0.9
1
A
PFM Peak Current Limit
Zero Cross Threshold
IPK_PFM
0.26
0.3
0.34
A
10
mA
Negative Current Limit
INLIMIT (Note 7)
-0.46
-0.40
-0.34
A
POWER MOSFET
High-side
Low-side
PHASE Leakage Current
RHDS
RLDS
IPHASE = 100mA, VCC = 5V
IPHASE = 100mA, VCC = 5V
EN = PHASE = 0V
450
600
mΩ
250
330
mΩ
300
nA
PHASE Rise Time
EN/SYNC
tRISE VIN = 36V
10
ns
EN Input Threshold
Falling Edge, Logic Low
0.818
0.87
0.922
V
Rising Edge, Logic High
1.017
1.07
1.123
V
SYNC Input Threshold
Falling Edge, Logic Low
0.4
1
V
Rising Edge, Logic High
1.2
1.4
V
EN Logic Input Leakage Current
EN = 0V/36V
-0.5
0.5
µA
SYNC Logic Input Leakage Current
SYNC = 0V
10
100
nA
SYNC = 5V
1.0
1.3
µA
NOTES:
6. Test Condition: VIN = 36V, FB forced above regulation point (0.6V), no switching, and power MOSFET gate charging current not included.
7. Established by both current sense amplifier gain test and current sense amplifier output test @ IL = 0A.
8. 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.
7
FN8414.0
July 11, 2013
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