LM9074 Datasheet, PDF (3/12 Pages) National Semiconductor (TI) – System Voltage Regulator with Keep-Alive ON/OFF

Absolute Maximum Ratings (Note 1)
Input Voltage
ON/OFF, Keep-Alive Inputs
(through 1 kΩ)
DC Input Voltage
Positive Input Transient (t<100 ms)
Negative Input Transient (t<1 ms)
Reset Output Sink Current
Power Dissipation
Junction Temperature
ESD Susceptibility (Note 2)
−26V to +26V
40V
−50V
5 mA
Internally Limited
150˚C
12 kV, 2 kV
Lead Temperature
(Soldering, 10 seconds)
Storage Temperature
260˚C
−50˚C to +150˚C
Operating Ratings (Note 1)
Input Voltage
Ambient Temperature
θja, M14A Package
θjc, M14A Package
7.5V to 16.5V
−40˚C to +125˚C
88˚C/W
34˚C/W
Electrical Characteristics
The following specifications apply for V_CC= 7.5V to 16.5V, −40˚C ≤ T_A≤ 125˚C, unless otherwise specified. C_OUT=0.1µF.
Symbol
Parameter
Conditions
Min
Max
Units
REGULATOR OUTPUT
V_OUT
∆V_OUT Line
∆V_OUT Load
Iq
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
20 mA ≤ I_OUT ≤ 180 mA
I_OUT = 20 mA, 9V ≤ V_IN ≤ 16.5V
I_OUT = 20 mA, 7.5V ≤ V_IN ≤ 16.5V
V_IN = 14.4V, 20 mA ≤ I_OUT ≤ 180 mA
4V ≤ V_ON/OFF ≤ V_IN
20mA ≤ I_OUT ≤ 180mA
4.85
5.15
V
25
mV
50
mV
50
mV
25
mA
Ioff
OFF Quiescent Current
V_IN ≤ 16.5V, Regulator OFF
−40˚C ≤ T_J ≤ 60˚C
60˚C ≤ T_J ≤ 135˚C
Vdo
Dropout Voltage
I_OUT = 20 mA
I_OUT = 180 mA
Isc
Short Circuit Current
R_L = 1Ω
0.4
PSRR
Ripple Rejection
V_IN = (14V_DC) + (1V_RMS @ 120Hz)
I_OUT = 50 mA
60
Voth_OFF
Safety V_OUT Latch-OFF Threshold In Keep-Alive mode
V_ON/OFF = 0V, V_KA = 0V
4
Vo Transient V_OUT during Transients
V_IN Peak ≤ 40V,
R_L = 100Ω, τ = 100 ms
RESET OUTPUT
20
µA
60
µA
2.0
V
2.5
V
1.0
A
dB
4.5
V
5.5
V
Vth
Vlow
Vhigh
t_delay
I_delay
Rpu
Threshold Voltage
Reset Output Low Voltage
Reset Output High Voltage
Delay Time
Charging Current for Cdelay
Internal Pull-up Resistance
∆V_OUT Required to Generate a Reset
Output
−300
−500
mV
4.85V ≤ V_OUT ≤ 5.15V
Isink = 1.6 mA, V_OUT > 3.2V
0.4
V
1.4V ≤ V_OUT ≤ 3.2V
0.8
V
0.9 V_OUT
V_OUT
V
Cdelay = 0.1 µFd
7
45
ms
−7
25
µA
12
80
kΩ
CONTROL LOGIC
V_KAlow
Low Input Threshold Voltage,
Keep-Alive Input
3.5V ≤ V_OUT ≤ 5.25V
0.3 V_OUT
0.5 V_OUT
V
V_KAhigh
High Input Threshold Voltage,
Keep-Alive Input
3.5V ≤ V_OUT ≤ 5.25V
0.6 V_OUT
0.8 V_OUT
V
V_ON/OFF low
V_ON/OFF high
Low Input Voltage, ON/OFF Input
High Input Voltage, ON/OFF Input
Rseries = 1 kΩ
Rseries = 1 kΩ
−2
2
V
4
V_IN
V
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