MAX894L/MAX895L
Dual, Current-Limited, High-Side P-Channel
Switches with Thermal Shutdown
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= 3V, T
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
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.
IN to GND ...................................................................-0.3V to 6V
ONA, ONB to GND .....................................................-0.3V to 6V
SET A, SET B, OUT A, OUT B to GND ........-0.3V to (V
IN
+ 0.3V)
Maximum Continuous Switch Current
MAX894L ..........................................................................0.75A
MAX895L ........................................................................0.375A
Continuous Power Dissipation (T
A
= +70°C)
SO (derate 5.88mW/°C above +70°C) .......................471mW
Operating Temperature Range
MAX89_LESA .................................................-40°C to +85°C
Storage Temperature Range...............................-65°C to+150°C
Lead Temperature (soldering, 10sec) ..............................+300°C
V
SET A
= 1.4V, ONA = 0, ONB = V
IN
, I
OUT A
= 0,
V
IN
= V
OUT
V
ONA
= V
ONB
= 5.5V
ONA = ONB = IN, V
IN
= V
OUT A
= V
OUT B
= 5.5V
V
IN
= 4.5V to 5.5V
V
IN
= 2.7V to 3.6V
V
IN
= 5V, ONA = ONB = GND, I
OUT A
= I
OUT B
= 0
V
IN
= 2.7V to 5.5V
V
IN
= 3.0V
MAX895L
ONA = ONB = IN, V
IN
= 5.5V, V
OUT A
= V
OUT B
= 0
Rising edge, 1% hysteresis
MAX894L
V
SET
required to turn the switch off (Note 1)
CONDITION
0.5 3
I
SETA,
I
SETB
Bias Current
µA0.01 1
ONA, ONB Input Leakage
V
2.4
ONA, ONB Input High Voltage
2.0
V0.8
ONA, ONB Input Low Voltage
mA
250
500
Maximum Output Current
V1.178 1.240 1.302Current-Limit-Amplifier Threshold
µA0.0001 1Off-Supply Current
µA18 30
V2.7 5.5Operating Voltage
Quiescent Current
mΩ
300 500
150 300
250 420
µA0.002 10Off-Switch Current
V2.0 2.4 2.6Undervoltage Lockout
On-Resistance
120 225
UNITSMIN TYP MAXPARAMETER
V
IN
= 4.5V
MAX894L
MAX895L
MAX895L
20% current overdrive, V
CC
= 5V µs5Slow-Current-Loop Response Time
µs2Fast-Current-Loop Response Time
Note 1: Tested with I
OUT
= 50mA for the MAX894L and 25mA for the MAX895L, and V
SET
raised until V
IN
- V
OUT
≥ 0.8V.
MAX895L, I
OUT
= 125mA
MAX894L, I
OUT
= 250mA
A/AV
OUT
> 1.6V
910 1050 1235
945 1085 1270
I
OUT
to I
SET
Current Ratio
MAX894L
µA
V
IN
= 5V, I
OUT
= 250mA (MAX894L), 125mA (MAX895L) 100 200
µsTurn-On Time
V
IN
= 3V, I
OUT
= 250mA (MAX894L), 125mA (MAX895L) 150
Turn-Off Time 0.8 1.2 20 µs
V
SET B
= 1.4V, ONB = 0, ONA = V
IN
, I
OUT B
= 0,
V
IN
= V
OUT
0.5 3
