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LM2940L-50-TN3-T 数据手册 - UTC（友顺）
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LM2940L-50-TN3-T数据手册
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LM2940 LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 5 of 12
www.unisonic.com.tw QW-R102-016.L
ELECTRICAL CHARACTERISTICS(Cont.)
For LM2940-10V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage V
OUT
11.5V ≤ V
IN
≤ 26V, 5mA ≤ I
OUT
≤ 1A 9.70 10.00 10.30 V
Line regulation △V
OUT
V
OUT
+2V ≤ V
IN
≤ 26V, I
OUT
=5mA 20 100 mV
Load Regulation △V
OUT
50mA ≤ I
OUT
≤ 1A 65 100 mV
Output Impedance R
OUT
100mA DC and 20mA
RMS
, f
O
=120Hz 65 mΩ
Quiescent Current I
Q
V
OUT
+2V ≤ V
IN
≤ 26V, I
OUT
=5mA 10 15 mA
Output Noise Voltage e
N
10Hz-100kHz, I
OUT
=5mA 300 μV
RMS
Ripple Rejection RR f
O
=120Hz, 1V
RMS
, I
OUT
=100mA 51 63 dB
Long Term Stability 36
mV/1000H
r
Dropout Voltage V
D
I
OUT
=1A 0.5 0.8
V
I
OUT
=100mA 0.13 0.15
Short Circuit Current I
SC
(Note) 2.5 A
Maximum Line Transient T
IN
R
OUT
=100Ω, T ≤ 100ms 60 75 V
Reverse Polarity DC Input Voltage V
RIN
R
OUT
=100Ω -15 -30 V
Reverse Polarity Transient Input
Voltage
V
TRRI
R
OUT
=100Ω, T ≤ 100ms -50 -75 V
UTC LM2940-12V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage V
OUT
13.6V ≤ V
IN
≤ 26V, 5mA ≤ I
OUT
≤ 1A 11.64 12.00 12.36 V
Line regulation △V
OUT
V
OUT
+2V ≤ V
IN
≤ 26V, I
OUT
=5mA 20 120 mV
Load Regulation △V
OUT
50mA ≤ I
OUT
≤ 1A 55 120 mV
Output Impedance R
OUT
100mA DC and 20mA
RMS
, f
O
=120Hz 80 mΩ
Quiescent Current I
Q
V
OUT
+2V ≤ V
IN
≤ 26V, I
OUT
=5mA 10 15 mA
Output Noise Voltage e
N
10Hz-100kHz, I
OUT
=5mA 360 μV
RMS
Ripple Rejection RR f
O
=120Hz, 1V
RM
s, I
OUT
=100mA 54 66 dB
Long Term Stability 48
mV/1000H
r
Dropout Voltage V
D
I
OUT
=1A 0.5 0.8
V
I
OUT
=100mA 0.11 0.15
Short Circuit Current I
SC
(Note) 2.5 A
Maximum Line Transient T
IN
R
OUT
=100Ω, T ≤ 100ms 60 75 V
Reverse Polarity DC Input Voltage V
RIN
R
OUT
=100Ω -15 -30 V
Reverse Polarity Transient Input
Voltage
V
TRRI
R
OUT
=100Ω, T ≤ 100ms -50 -75 V
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