參數(shù)資料
型號(hào)： ISL6436LIB
廠商： INTERSIL CORP
元件分類： 電源管理
英文描述： USB Dual Port Power Supply Controller
中文描述： 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： PLASTIC, MS-012AA, SOIC-8
文件頁(yè)數(shù)： 4/12頁(yè)
文件大?。?/td> 902K
代理商： ISL6436LIB
4
Introduction
The ISL6436 is a fully independent dual channel overcurrent
(OC) fault protection IC for the +2.5V to +5.5V environment.
Each ISL6436 incorporates in a single 8 lead SOIC package
two 80m
N-channel MOSFET power switches for power
control. Independent enabling inputs and fault reporting outputs
compatible with 3V and 5V logic allows for external control and
monitoring. This device features internal current monitoring,
accurate current limiting, integrated power switches and current
limited timed delay to latch-off for systemprotection. See Figure
1 for typical operational waveforms including both under and
over current situations.
Key Feature Description and Operation
Absolute Maximum Ratings
Thermal Information
Supply Voltage (VIN to GND). . . . . . . . . . . . . . . . . . . . . . . . . . . 6.0V
EN, FAULT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to 6V
OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to VIN 0.3V
Output Current . . . . . . . . . . . . . . . . . . . . . . .Short Circuit Protected
ESD Rating
Human Body Model (Per MIL-STD-883 Method 3015.7). . . . .3kV
Operating Conditions
Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to 85
o
C
Supply Voltage Range (Typical). . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Thermal Resistance (Typical, Note 1)
8 Lead SOIC Package . . . . . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .150
o
C
Maximum Storage Temperature Range. . . . . . . . . . -65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300
o
C
(SSOP - Lead Tips Only)
θ
JA
(
o
C/W)
116
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1.
θ
JA
is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
Supply Voltages = 5V, T
A
= T
J
= -40 to 85
o
C, Unless Otherwise Specified
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
POWER SWITCH
ISL6436 On Resistance at 2.7V
r
DS(ON)_27
VIN = 2.7V, I
OUT
= 0.7A, T
A
= T
J
= 25
o
C
T
A
= T
J
= 85
o
C
VIN = 3.3V, I
OUT
= 0.7A, T
A
= T
J
= 25
o
C
T
A
= T
J
= 85
o
C
VIN = 5V, I
OUT
= 0.7A T
A
= T
J
= 25
o
C
T
A
= T
J
= 85
o
C
VIN = 5V, Switch Disabled, 50
μ
A Load
R
L
= 10
,
C
L
= 0.1
μ
F, 10%-90%
R
L
= 10
,
C
L
= 0.1
μ
F, 90%-10%
R
L
= 1
,
C
L
= 0.1
μ
F, 90%-10%
-
-
-
-
-
-
-
-
-
-
90
115
80
115
80
115
300
10
10
4
105
130
100
130
95
130
450
-
-
-
m
m
m
m
m
m
mV
V/ms
V/ms
V/
μ
s
ISL6436 On Resistance at 3.3V
r
DS(ON)_33
ISL6436 On Resistance at 5.0V
r
DS(ON)_50
Disabled Output Voltage
Vout Rising Rate
Slow Vout Turn-off Rate
Fast Vout Turn-off Rate
CURRENT CONTROL
Current Limit, VIN = 3.3V - 5V
OC Regulation Settling Time
Severe OC Regulation Settling Time
Over Current Latch-off Time
I/O PARAMETERS
Fault Output Voltage
ENABLE High Threshold
ENABLE Low Threshold at 2.7V
ENABLE Low Threshold at 5.5V
ENABLE Input Current
BIAS PARAMETERS
Enabled VIN Current
Disabled VIN Current
Undervoltage Lockout Threshold
UV Hysteresis
Overtemperature Disable
V
OUT_DIS
t_vout_rt
t_svout_offt
t_fvout_offt
Ilim
VOUT = 0.8V
R
L
= 5
,
C
L
= 0.1
μ
F to Within 10% of CR
R
L
< 1
,
C
L
= 0.1
μ
F to Within 10% of CR
ISL6436X, T
J
= 25
o
C
0.75
-
-
-
1
2
1.25
-
-
-
A
ms
μ
s
ms
tsett
Ilim
tsett
Ilim_sev
t
OC_loff
100
10
Vfault_hi
Ven_vih
Ven_vil
Ven_vil
Ien_i
Fault I
OUT
= 10mA
VIN = 5.5V
VIN = 2.7V
VIN = 5.5V
ENABLE = 0V to 5V, VIN = 5V, T
J
>25
o
C
-
-
-
-
-
-
0.4
-
0.6
0.8
0.5
V
V
V
V
μ
A
2.0
-
-
-0.5
I
VDD
I
VDD
V
UVLO
UV
HYS
Temp_dis
Switches Closed, OUTPUT = OPEN, T
J
>0
o
C
Switches Open, OUTPUT = OPEN
VIN Rising, Switch Enabled
-
-
120
1
2.25
100
150
200
5
2.5
-
-
μ
A
μ
A
V
mV
o
C
1.7
50
-
ISL6436
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