Datasheet

LMD18400
SNVS094C –JUNE 1996–REVISED APRIL 2013 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
V
CC
= 12V, C
CP
= 0.01 µFd, unless otherwise indicated. Boldface limits apply over the entire operating temperature range,
−25°C ≤ T
A
≤ +85°C, all other limits are for T
A
= T
J
= +25°C.
Typical Limit Units
Parameter Conditions
(1) (2)
(Limit)
Output Leakage Enable Input = 0V, Inputs = 0V
0.01 300 µA (Max)
(Pins 1, 2, 18, 19)
Rds ON I
OUT
= 1A,
(3)
0.8 1.3 Ω (Max)
Short Circuit Current V
CC
= 12V,
(3)
1.2 0.6 A (Min)
V
CC
= 7V,
(3)
2.4 A
V
CC
= 28V,
(3)
0.6 A
Maximum Output Current V
CC
−V
O
= 4V,
(3)
3.75 A
Lead Error Threshold Voltage Pins 1, 2, 18, 19 4.1 V
Open Load Detection Current Pins 1, 2, 18, 19 150 µA
Negative Clamp Output Voltage I
O
= 1A,
(3)
−5 V
Overvoltage Shutdown Threshold 31 40 V (Max)
Overvoltage Shutdown Hysteresis 0.75 V
Error Output Leakage Current V
PIN 13
= 12V 0.001 10 µA (Max)
Thermal Warning Temperature V
PIN 13
< 0.8V 145 °C
Thermal Shutdown Temperature V
PIN 17
< 0.8V 170 °C
Thermal Warning Temperature V
PIN 13
< 0.8V 145 °C
AC CHARACTERISTICS
Switch Turn-On Delay (t
d(ON)
) Enable (Pin 3) = 5V, I
OUT
= 1A 5 10 µs (Max)
Switch Turn-On Rise Time (t
ON
) I
OUT
= 1A 7 15 µs (Max)
Switch Turn-Off Delay (t
d(OFF)
) Enable (Pin 3) = 5V, I
OUT
= 1A 0.5 2 µs (Max)
Switch Turn-Off Fall Time (t
OFF
) I
OUT
= 1A 0.15 1 µs (Max)
Enable Time (t
EN
) Measured with Switch 1, Pin 9 = 5V 30 50 µs (Max)
Error Reporting Delay (t
Error
) Enable (Pin 3) = 5V, Switch 1 Load Opened 75 150 µs (Max)
Data Setup Time (t
DS
) C
L
= 30 pF 200 500 ns (Min)
TRI-STATE Control (t
1H
, t
OH
) Pin 8, Hi-Z Enable Time 2 µs
Data Clock Frequency 3 1 MHz (Max)
DIGITAL CHARACTERISTICS
Logic “1” Input Voltage Pins 3, 4, 7, 9, 10, 11, 12 2.0 V (Min)
Logic “0” Input Voltage Pins 3, 4, 7, 9, 10, 11, 12 0.8 V (Max)
Logic “1” Input Current Pins 4, 7 0.001 1 µA (Max)
Logic “0” Input Current Pins 4, 7 −0.001 −1 µA (Max)
TRI-STATE Output Current Pin 8, Pin 4 = 5V 0.05 10 µA (Max)
Pin 8 = 0V −0.05 −10 µA (Max)
Enable Input Current Pin 3 = 2.4V 12 25 µA (Max)
Channel Input Resistance Pins 9, 10, 11, 12 75 15 kΩ (Min)
Error Output Sink Current Pin 13 = 0.8V 4 1.6 mA (Min)
Logic “1” Output Voltage Pin 8
I
OUT
= −360 µA 4.4 2.4 V (Min)
I
OUT
= −10 µA 5.1 4.5 V (Min)
I
OUT
= −10 µA 5.5 V (Min)
Logic “0” Output Voltage Pin 8
0.4 V (Max)
I
OUT
= 100 µA
Thermal Shutdown Output Source Current Pin 17 = 2.4V 5 3 µA (Min)
Thermal Shutdown Output Sink Current Pin 17 = 0.8V 360 250 µA (Min)
(3) Pulse Testing techniques used. Pulse width is < 5 ms with a duty cycle < 1%.
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