MAX14575A Datasheet, PDF (2/11 Pages) Maxim Integrated Products – 250mA to 2.5A Adjustable Current-Limit Switches

MAX14575A/MAX14575AL/
MAX14575B/MAX14575C
250mA to 2.5A Adjustable Current-Limit Switches
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND.)
IN, EN, EN, FLAG, OUT, and SETI to GND.............-0.3V to +6V
Current into Any Pin (Except IN, OUT)............................ Q20mA
OUT Short Circuit to GND.................................Internally Limited
Continuous Power Dissipation (TA = +70NC)
TDFN (derate 11.9mW/NC above +70NC).....................954mW
Operating Temperature Range........................... -40NC to +85NC
Storage Temperature Range............................. -65NC to +150NC
Junction Temperature......................................................+150NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TDFN
Junction-to-Ambient Thermal Resistance (BJA)...... +83.9NC/W
Junction-to-Case Thermal Resistance (BJC).............. +37NC/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-lay-
er board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(VIN = +2.3V to +5.5V and TA = -40NC to +85NC, unless otherwise noted. Typical values are at VIN = +3.3V, CIN = 1FF, COUT = 1FF,
RSETI = 100kI., TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SUPPLY OPERATION
Operating Voltage
VIN
2.3
5.5
V
Quiescent Current
IQ
IOUT = 0A, switch on, VIN = 3.3V,
RSETI = 560kI
130 275
FA
Latchoff Current
ILATCH
IOUT = 0A , after an overcurrent fault
(MAX14575B)
6
20
FA
Shutdown Forward Current
ISHDN
VEN = 0V, VEN = 5.5V, VIN = 5.5V,
VOUT = 0V
0.1
3.5
FA
Shutdown Reverse Current
INTERNAL FET
IRSHDN
VEN = 0V, VEN = 5.5V, VIN = 0V,
VOUT = 5.5V (current into OUT)
0.07
1
FA
Switch On-Resistance
Forward Current Limit
RSETI Coefficient
RSETI Constant
RSETI O ILIM Product
Reverse Blocking Current
RON
VIN = 5.5V, TA = +25°C, IOUT = 100mA,
IOUT < ILIM
32
50
mI
RSETI = 52.65kI
2250 2500 2750
ILIM
RSETI = 268.7kI
450 500 550
mA
RSETI = 538.7kI
200 250 300
P
ILIM = 0.5A to 2.5A
135
kV
C
ILIM = 0.5A to 2.5A
1.35
kI
ILIM = 250mA to 2500mA, VIN - VOUT = 1V 172
215
258
kV
VOUT > VIN + 145mV, after reverse
current-limit shutdown
2
FA
Reverse Blocking Threshold
VOUT - VIN = 300mV, OUT falling until
VOUT - VIN switch turns on, while measuring
VOUT - VIN
25
100 145
mV
FLAG Assertion Drop Voltage
Threshold
Increase (VIN - VOUT) drop until FLAG
VFA
asserts, in current-limit mode, VIN = 3.3V,
RSETI = unconnected
345
mV
2  
Maxim Integrated