ISL61862DIRZ Intersil, ISL61862DIRZ Datasheet - Page 7

• Manufacturer Part Number: ISL61862DIRZ
• Description: Hot Swap & Power Distribution SINGLE USB HOTSWAP 3A/RETRY 3X3 8LD
• Manufacturer: Intersil

Specifications of ISL61862DIRZ

• Rohs: yes
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: DFN EP

Introduction
The ISL6186 is a single channel overcurrent (OC) fault protection
IC for the +2.5V to +5V environment. Each ISL6186 has a 45mΩ
P-channel MOSFET power switch for power control. An enabling
input and fault reporting output compatible with 2.5V to 5V logic
allows for external control and reporting. This device features an
integrated power switch with current monitoring, accurate
current limiting, reverse bias protection, and current limited
timed delay to turn-off for system reliability. See Figures 11
through 27 for typical operational waveforms including both
undercurrent and overcurrent situations.
The ISL6186 offers current sense and limiting with V
guarantee continuous current levels of 1.5A, 3A and 3.6A, making
these devices well suited for a myriad of USB and other low-power
(18W max) port power management applications and
configurations.
The ISL6186 also provides thermally insensitive timed OC turn-off
and fault notification, isolating and protecting the voltage bus in the
event of a peripheral OC or short circuit independent of the ambient
thermal condition.
The ISL6186 undervoltage lockout feature prevents turn-on of
the output unless the correct ENABLE state and V
present. During initial turn-on, the ISL6186 prevents false fault
reporting by blanking the fault signal.
Electrical Specifications
range, 0°C to +75°C or -40°C to +85°C
NOTE:
BIAS PARAMETERS
8. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
Temp_hys
Temp_dis
SYMBOL
t
t
PGN Vth
PG Vth
Vthr2PG
Vthf2PG
Ren_h
t
V
Ren_l
pdPGr
t
I
I
t
UVLO
VDD
VDD
I
OFF
ON
VR
ENABLE Pull-Down Resistor
ENABLE Pull-Up Resistor
Enable to Output Turn-on Time
Enable to Output Turn-off Time
Enable to Power Good Output Rising
Time
Power Good Threshold
Power Not Good Threshold
PG Vth to PG Falling
PGN Vth to PG Rising
Enabled V
Disabled V
Rising POR Threshold
Reverse Blocking Leakage Current
Over-Temperature Disable
Over-Temperature Hysteresis
IN
IN
PARAMETER
Current
Current
7
V
.
IN
(Continued)
= 5V, T
A
= T
IN
IN
Enable asserted high options
Enable asserted low options
R
R
PGD pulls low when V
PGD release high when V
PG delay after PG Vth
PG delay after PGN Vth
Switches Closed, OUTPUT = OPEN
Switches Open, OUTPUT = OPEN
V
V
Disable to Power-Good De-assert
IN
IN
L
L
> V
J
= 5V to
, Unless Otherwise Specified. Boldface limits apply over the operating temperature
= 10Ω, C
= 10Ω, C
Rising to functional operation
= 0V, V
UVLO
ISL6186
OUT
L
L
are
= 10µF, Enable 50% to Output 90%
= 10µF, Enable 50% to Output 10%
= 5V
TEST CONDITIONS
During operation, once an OC condition is detected, the output
is current limited for t
pass. If still in current limit after the current limit period has
elapsed, the output is then turned off and the fault is reported
by pulling the FAULT output low. On the latch-off options, after
turn-off, both the output and the FAULT signal are latched low
until reset by the enable signal being de-asserted or a POR
occurring. At this time, the FAULT signal will clear and the
switch is ready to be turned back on. On the auto restart
options, the ISL6186 will attempt to periodically turn on the
output as long as the enable is asserted.
When disabled, the ISL6186 has a low quiescent supply current
and output to input reverse current flow blocking capability.
The ISL6186 family is provided with enable polarity options and
an industry standard 8 Ld SOIC pinout along with two versions in
the 70% smaller 3x3 DFN. The 8 Ld DFN package offers the
same performance as the 8 Ld SOIC whereas the 10 Ld DFN
offers higher current capability in the smallest possible package
due to its lower package electrical and thermal resistance.
Additionally, the 10 Ld DFN has a Power-Good output PGD that
pulls low 40ms after V
of V
OUT
OUT
/V
IN
IN
.
/V
IN
OUT
CL
to allow transient OC conditions to
>90% of V
(Note 8)
MIN
0.6
0.6
88
78
-
-
-
-
-
-
-
-
-
-
-
IN
and rises after V
0.25
150
TYP
0.1
1.5
3.5
2.1
0.3
30
86
45
20
91
57
1
1
(Note 8)
MAX
1.55
1.55
5.5
2.3
2.0
95
93
75
-
-
-
-
-
-
-
November 3, 2011
OUT
FN7698.2
UNITS
< 85%
MΩ
MΩ
ms
ms
µA
µA
µA
°C
°C
ns
µs
µs
%
%
V