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參數(shù)資料
| 型號： | LM237H |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | NEGATIVE VOLTAGE REGULATORS THREE-TERMINAL ADJUSTABLE |
| 中文描述： | 負電壓調節(jié)器三端可調 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大?。?/td> | 273K |
| 代理商： | LM237H |
LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
SLVS047G – NOVEMBER 1981 – REVISED SEPTEMBER 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of operating virtual junction temperature
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
LM237
TYP
0.01
LM337
TYP
0.01
UNIT
MIN
MAX
0.02
MIN
MAX
0.04
Input regulation
VI – VO = –3 V to –40 V
TJ = 25
°
C
TJ = MIN to MAX
f = 120 H
Z
%/V
0.02
0.05
0.02
0.07
Ripple rejection
VO = –10 V,
VO = –10 V, f = 120 H
Z,
CADJ = 10
μ
F
IO = 10 mA to 1.5 A,
TJ = 25
°
C
60
60
dB
66
77
66
77
Output regulation
|VO|
≤
5 V
|VO|
≥
5 V
|VO|
≤
5 V
|VO|
≥
5 V
25
50
mV
0.3%
0.5%
0.3%
1%
IO = 10 mA to 1.5 A
50
70
mV
1%
1.5%
Output-voltage
change with
temperature
TJ = MIN to MAX
0.6%
0.6%
Output-voltage
long-term drift
After 1000 h at TJ = MAX and VI – VO = –40 V
0.3%
1%
0.3%
1%
Output noise
voltage
f = 10 H
Z
to 10 kH
Z
,
TJ = 25
°
C
0.003%
0.003%
Minimum output
current to maintain
regulation
|VI – VO|
≤
40 V
2.5
5
2.5
10
mA
|VI – VO|
≤
10 V
|VI – VO|
≤
15 V
|VI – VO|
≤
40 V,
1.2
3
1.5
6
Peak output current
1.5
2.2
1.5
2.2
A
TJ = 25
°
C
0.24
0.4
0.15
0.4
Adjustment-terminal
current
65
100
65
100
μ
A
Change in
adjustment-terminal
current
VI – VO = – 2.5 V to –40 V,
IO = 10 mA to MAX
TJ = 25
°
C,
2
5
2
5
μ
A
Reference voltage
(output to ADJ)
VI – VO = – 3 V to –40 V,
IO = 10 mA to 1.5 A,
P
≤
rated dissipation
Initial TJ = 25
°
C,
TJ = 25
°
C
–1.225
–1.25
–1.275
–1.213
–1.25
–1.287
V
TJ = MIN to MAX
–1.2
–1.25
–1.3
–1.2
–1.25
–1.3
Thermal regulation
Unless otherwise noted, these specifications apply for the following test conditions |VI – VO| = 5 V and IO = 0.5 A. For conditions shown as MIN
or MAX, use the appropriate value specified under recommended operating conditions. All characteristics are measured with a 0.1-
μ
F capacitor
across the input and a 1-
μ
F capacitor across the output. Pulse-testing techniques are used to maintain the junction temperature as close to the
ambient temperature as possible. Thermal effects must be taken into account separately.
Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
10-ms pulse
0.002
0.02
0.003
0.04
%/W
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