ISL6436 Datasheet, PDF (4/12 Pages) Intersil Corporation – USB Dual Port Power Supply Controller

ISL6436
Absolute Maximum Ratings
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^oC to 85^oC
Supply Voltage Range (Typical). . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Thermal Information
Thermal Resistance (Typical, Note 1)
θ_JA (^oC/W)
8 Lead SOIC Package . . . . . . . . . . . . . . . . . . . . . . .
116
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150^oC
Maximum Storage Temperature Range . . . . . . . . . . -65^oC to 150^oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300^oC
(SSOP - Lead Tips Only)
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^oC, Unless Otherwise Specified
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
POWER SWITCH
ISL6436 On Resistance at 2.7V
r_{DS(ON)_27} VIN = 2.7V, I_OUT = 0.7A, T_A = T_J = 25^oC
-
T_A = T_J = 85^oC
-
ISL6436 On Resistance at 3.3V
r_{DS(ON)_33} VIN = 3.3V, I_OUT = 0.7A, T_A = T_J = 25^oC
-
T_A = T_J = 85^oC
-
ISL6436 On Resistance at 5.0V
r_{DS(ON)_50} VIN = 5V, I_OUT = 0.7A T_A = T_J = 25^oC
-
T_A = T_J = 85^oC
-
Disabled Output Voltage
V_{OUT_DIS} VIN = 5V, Switch Disabled, 50µA Load
-
Vout Rising Rate
t_vout_rt R_L = 10Ω, C_L = 0.1µF, 10%-90%
-
Slow Vout Turn-off Rate
t_svout_offt R_L = 10Ω, C_L = 0.1µF, 90%-10%
-
Fast Vout Turn-off Rate
t_fvout_offt R_L = 1Ω, C_L = 0.1µF, 90%-10%
-
CURRENT CONTROL
Current Limit, VIN = 3.3V - 5V
Ilim
VOUT = 0.8V
0.75
OC Regulation Settling Time
tsett_Ilim R_L = 5Ω, C_L = 0.1µF to Within 10% of CR
-
Severe OC Regulation Settling Time
tsett_{Ilim_sev} R_L< 1Ω, C_L = 0.1µF to Within 10% of CR
-
Over Current Latch-off Time
t_{OC_loff}
ISL6436X, T_J = 25^oC
-
I/O PARAMETERS
Fault Output Voltage
Vfault_hi Fault I_OUT = 10mA
-
ENABLE High Threshold
Ven_vih VIN = 5.5V
2.0
ENABLE Low Threshold at 2.7V
Ven_vil VIN = 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
Ven_vil VIN = 5.5V
-
Ien_i
ENABLE = 0V to 5V, VIN = 5V, T_J >25^oC
-0.5
I_VDD
Switches Closed, OUTPUT = OPEN, T_J >0^oC
-
I_VDD
Switches Open, OUTPUT = OPEN
-
V_UVLO
VIN Rising, Switch Enabled
1.7
UV_HYS
50
Temp_dis
-
TYP
90
115
80
115
80
115
300
10
10
4
1
2
100
10
-
-
-
-
-
120
1
2.25
100
150
MAX UNITS
105 mΩ
130 mΩ
100 mΩ
130 mΩ
95
mΩ
130 mΩ
450 mV
-
V/ms
-
V/ms
-
V/µs
1.25
A
-
ms
-
µs
-
ms
0.4
V
-
V
0.6
V
0.8
V
0.5
µA
200
µA
5
µA
2.5
V
-
mV
-
o_C
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 80mΩ 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 system protection. See Figure
1 for typical operational waveforms including both under and
over current situations.
Key Feature Description and Operation
4