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MAX895LESA+T

P1-P3P4-P6P7-P8
MAX894L/MAX895L
Dual, Current-Limited, High-Side P-Channel
Switches with Thermal Shutdown
4 _______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(Typical Operating Circuit, T
A
= +25°C, unless otherwise noted.)
0
0
QUIESCENT CURRENT
vs. INPUT VOLTAGE
4
8
28
MAX894 TOC-01
INPUT VOLTAGE (V)
QUIESCENT CURRENT (µA)
5
20
12
16
23
24
146
ONA = ONB = GND
I
OUT A
= I
OUT B
= 0
12
-40 100
QUIESCENT CURRENT
vs. TEMPERATURE
24
MAX894 TOC-02
TEMPERATURE (°C)
QUIESCENT CURRENT (µA)
60
20
18
22
16
14
020
-20 40 80
V
IN
= 5V
V
IN
= 3V
OFF-SUPPLY CURRENT
vs. TEMPERATURE
MAX894L-03
TEMPERATURE (°C)
OFF-SUPPLY CURRENT (nA)
1000
0.01
0.1
1
10
100
-40 20 40 8060-20 0 100
OFF-SWITCH CURRENT
vs. TEMPERATURE
MAX894L-04
TEMPERATURE (°C)
OFF-SWITCH CURRENT (nA)
1000
0.01
0.1
1
10
100
-40 20 40 8060-20 0 100
0
0
NORMALIZED OUTPUT CURRENT
vs. OUTPUT VOLTAGE
0.2
0.4
1.4
MAX894 TOC-06A
OUTPUT VOLTAGE (V)
NORMALIZED OUTPUT CURRENT
5
1.0
0.6
0.8
23
1.2
146
V
IN
= 5V
I
LIMIT
-40
NORMALIZED ON-RESISTANCE
vs. TEMPERATURE
0.6
0.7
1.3
MAX894 TOC-05
TEMPERATURE (°C)
NORMALIZED R
ON
80
1.0
0.8
0.9
02040
1.1
1.2
-20 60 100
I
OUT
= 1/2 I
LIMIT
0
0 140
I
OUT
/I
SET
vs. I
LIMIT
200
400
1600
MAX894 TOC-06
I
LIMIT
(%)
I
OUT
/I
SET
RATIO
120
1000
600
800
40 60 80
1200
1400
20 100
60
-40
TURN-ON TIME
vs. TEMPERATURE
80
100
120
260
MAX894 TOC-07
TEMPERATURE (°C)
t
ON
(µs)
80
180
140
160
02040
200
220
240
-20 60 100
I
LOAD
=
I
LIMIT
V
IN
= 5V
V
IN
= 3V
-40
TURN-OFF TIME
vs. TEMPERATURE
0
1
7
MAX894 TOC-08
TEMPERATURE (°C)
t
OFF (
µ
s)
80
4
2
3
02040
5
6
-20 60 100
V
IN
= 3V
V
IN
= 5V
I
LOAD
=
I
LIMIT
MAX894L/MAX895L
Dual, Current-Limited, High-Side P-Channel
Switches with Thermal Shutdown
_______________________________________________________________________________________ 5
2µs/div
C
IN
= 47µF, C
OUT
= 0.1µF
A: V
IN,
500mV/div, AC coupled
CURRENT-LIMIT RESPONSE
(MAX894L, R
L
= 1Ω)
A5V
0A
0V
B
C
B: I
OUT,
2A/div
C: V
OUT,
5V/div
MAX894/895/896 TOC-9
V
IN
= 5V, I
OUT
= I
LIMIT
A: V
ON
, 2V/div
B: V
OUT
, 2V/div
SWITCH TURN-ON TIME
A
B
20µs/div
MAX894/895/896 TOC-11
SWITCH TURN-OFF TIME
A
B
0V
0V
2µs/div
V
IN
= 5V, I
OUT
= I
LIMIT
A: V
ON
, 2V/div
B: V
OUT
, 2V/div
MAX894/895/896 TOC-12
____________________________Typical Operating Characteristics (continued)
(Typical Operating Circuit, T
A
= +25°C, unless otherwise noted.)
2ms/div
V
IN
= 5V
A: I
OUT
= 0 to 500mA, 0.2A/div
B: V
OUT
RIPPLE, 200mV/div, AC COUPLED
LOAD-TRANSIENT RESPONSE
(MAX894L)
A
0A
0V
B
MAX494/495/496 TOC-13
MAX894L/MAX895L
Dual, Current-Limited, High-Side P-Channel
Switches with Thermal Shutdown
6 _______________________________________________________________________________________
NAME FUNCTION
1 OUT A
Switch A Output. P-channel MOSFET drain. Bypass OUT A with a 0.1µF capacitor to ground.
2 OUT B
Switch B Output. P-channel MOSFET drain. Bypass OUT B with a 0.1µF capacitor to ground.
PIN
3 SET A
Set Current-Limit Input. A resistor from SET A to ground sets the current limit for switch A. See Setting the
Current Limit section.
4
ONA
Active-Low Switch A On Input. A logic low turns switch A on.
8
ONB
Active-Low Switch B On Input. A logic low turns switch B on.
7 IN
Input, Switches A and B. P-channel MOSFET source. Bypass IN with a 1µF capacitor to ground.
6 SET B
Set Current-Limit Input. A resistor from SET B to ground sets the current limit for switch B. See Setting the
Current Limit section.
5 GND Ground
______________________________________________________________Pin Description
1.24V
ON
P
P
P
P
P
CURRENT-LIMIT
AMPLIFIER B
REPLICA
AMPLIFIER A
CONTROL
CIRCUITRY
ON
REPLICA
AMPLIFIER B
1.24V
ON
ON
P
CURRENT-LIMIT
AMPLIFIER A
OUT B
OUT A
SET B
R
SET B
SET A
R
SET A
GND
IN
ONB
ONA
MAX894L
MAX895L
Figure 1. Functional Diagram
P1-P3P4-P6P7-P8

MAX895LESA+T

Mfr. #:
Buy MAX895LESA+T
Manufacturer:
Maxim Integrated
Description:
Power Switch ICs - Power Distribution Current-Limited High-Side PCh Switch
Lifecycle:
New from this manufacturer.
Delivery:
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