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參數(shù)資料
| 型號： | TL594CD |
| 廠商： | MOTOROLA INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT |
| 中文描述： | 0.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | PLASTIC, SO-16 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大小： | 166K |
| 代理商： | TL594CD |
TL594
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS052C – APRIL 1988 – REVISED JULY 1999
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating conditions, V
CC
= 15 V,
(unless otherwise noted)
reference section
PARAMETER
TEST CONDITIONS
TL594C, TL594I
MIN
TYP
UNIT
MAX
Output voltage (REF)
IO = 1 mA,
VCC = 7 V to 40 V,
IO = 1 to 10 mA,
TA = MIN to MAX
Vref = 0
TA = 25
°
C
TA = 25
°
C
TA = 25
°
C
4.95
5
5.05
V
Input regulation
2
25
mV
Output regulation
14
35
mV
Output-voltage change with temperature
Short-circuit output current§
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
All typical values except for parameter changes with temperature are at TA = 25
°
C.
§Duration of the short circuit should not exceed one second.
2
10
mV/V
10
35
50
mA
amplifier section (see Figure 1)
PARAMETER
TEST CONDITIONS
TL594C, TL594I
MIN
TYP
UNIT
MAX
Input offset voltage, error amplifier
FEEDBACK = 2.5 V
2
10
mV
Input offset current
FEEDBACK = 2.5 V
25
250
nA
μ
A
Input bias current
FEEDBACK = 2.5 V
0.2
1
Common-mode input voltage range,
error amplifier
VCC = 7 V to 40 V
0.3
to
VCC–2
V
Open-loop voltage amplification, error
amplifier
VO = 3 V,
RL = 2 k
,
VO = 0.5 V to 3.5 V
70
95
dB
Unity-gain bandwidth
VO = 0.5 V to 3.5 V,
RL = 2 k
800
kHz
Common-mode rejection ratio, error
amplifier
VCC = 40 V,
TA = 25
°
C
65
80
dB
Output sink current, FEEDBACK
VID = –15 mV to –5 V,
VID = 15 mV to 5 V,
FEEDBACK = 0.5 V
0.3
0.7
mA
Output source current, FEEDBACK
All typical values except for parameter changes with temperature are at TA = 25
°
C.
oscillator section, C
T
= 0.01
μ
F, R
T
= 12 k
(see Figure 2)
FEEDBACK = 3.5 V
–2
mA
PARAMETER
TEST CONDITIONS
TL594C, TL594I
TYP
UNIT
MIN
MAX
Frequency
Standard deviation of frequency
10
kHz
All values of VCC, CT, RT, and TA constant
VCC = 7 V to 40 V,
TA = MIN to MAX
100
Hz/kHz
Frequency change with voltage
Frequency change with temperature#
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
All typical values except for parameter changes with temperature are at TA = 25
°
C.
Standard deviation is a measure of the statistical distribution about the mean as derived from the formula:
TA = 25
°
C
1
Hz/kHz
50
Hz/kHz
N
n
1
(xn
X)2
N
1
#Temperature coefficient of timing capacitor and timing resistor not taken into account.
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