MP5000A – 12V, 1A-5A PROGRAMMABLE CURRENT LIMIT SWITCH
MP5000A Rev. 1.01 www.MonolithicPower.com 4
10/16/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
V
CC
= 12V, R
LIMIT
=22, Capacitive Load = 100F, T
A
=25°C, unless otherwise noted.
Parameters Symbol Condition Min Typ Max Units
Power FET
Delay Time
(5)
t
DLY
Enabling of chip to
I
D
=100mA with a 1A resistive
load
0.4 ms
T
J
=25°C 40 55
ON Resistance R
DSon
T
J
=85°C
(6)
52
m
Off State Output Voltage V
OFF
V
CC
=18Vdc, V
ENABLE
=0Vdc,
R
L
= 500
120 mV
Thermal Latch
Shutdown Temperature
(6)
T
SD
175 °C
Under/Over Voltage Protection
Output Clamping Voltage V
CLAMP
Overvoltage Protection
V
CC
=17V
13.8 15 16.2 V
Under Voltage Lockout V
UVLO
Turn on,
Voltage going high
7.7 8.5 9.3 V
Under Voltage Lockout (UVLO)
Hysteresis
V
HYST
0.80 V
Current Limit
Hold Current
(7)
I
LIM-SS
R
LIM
=22 2.3 3.6 4.9 A
Trip Current
(7)
I
LIM-OL
R
LIM
=22 4.7 A
dv/dt Circuit
Rise Time T
r
Float dv/dt pin, Output rises
from 10% to 90%
0.4 0.9 2.1 ms
Enable/Fault
Low Level Input Voltage
V
IL
Output Disabled 0.5 V
Intermediate Level Input Voltage V
I (INT)
Thermal Fault, Output
Disabled
0.82 1.4 1.95 V
High Level Input Voltage V
IH
Output Enabled 2.5 V
High State Maximum Voltage V
I (MAX)
5 V
Low Level Input Current (Sink) I
IL
V
ENABLE
=0V -28 -50 A
Maximum Fanout for Fault Signal
Total number of chips that
can be connected for
simultaneous shutdown
3 Units
Maximum Voltage on Enable/Fault
Pin
(8)
V
MAX
VCC V
Total Device
Device Operational 1 1.2
Bias Current I
BIAS
Thermal Shutdown 0.4
mA
Minimum Operating Voltage for
UVLO
V
MIN
Enable<0.5V 5 V
Notes:
5) Related to Rise Time. See description in Fault and Enable Pin Section.
6) Guaranteed by design.
7) Guaranteed by characterization Test.
8) Maximum Input Voltage on Enable pin to be 6.0V if Vcc 6.0V, Maximum Input Voltage on Enable pin to be Vcc if Vcc 6.0V.
