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參數(shù)資料
| 型號(hào)： | TL594D |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| 中文描述： | 脈寬調(diào)制控制電路 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 166K |
| 代理商： | TL594D |
TL594
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS052C – APRIL 1988 – REVISED JULY 1999
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, V
CC
= 15 V,
(unless otherwise noted)
dead-time control section (see Figure 2)
PARAMETER
TEST CONDITIONS
TL594C, TL594I
MIN
TYP
UNIT
MAX
Input bias current
VI = 0 to 5.25 V
DTC = 0 V
–2
–10
μ
A
Maximum duty cycle, each output
0.45
Input threshold voltage
Zero duty cycle
Maximum duty cycle
3
3.3
V
0
All typical values except for parameter changes with temperature are at TA = 25
°
C.
output section
PARAMETER
TEST CONDITIONS
TL594C, TL594I
MIN
TYP
UNIT
MAX
100
VC = 40 V, VE = 0 V,
DTC and OUTPUT CTRL = 0 V,
VC = 15 V,
VE = 0 V,
VCC = VC = 40 V,
VE = 0,
VC = 15 V,
VI = Vref
VCC = 40 V
2
Collector off-state current
VCC = 1 to 3 V
VE = 0
IC = 200 mA
IE = –200 mA
4
200
μ
A
Emitter off-state current
–100
μ
A
Collector emitter saturation voltage
Collector-emitter saturation voltage
Common emitter
1.1
1.3
V
Emitter follower
1.5
2.5
Output control input current
All typical values except for parameter changes with temperature are at TA = 25
°
C.
pwm comparator section (see Figure 2)
3.5
mA
PARAMETER
TEST CONDITIONS
TL594C, TL594I
MIN
TYP
UNIT
MAX
Input threshold voltage, FEEDBACK
Zero duty cycle
4
4.5
V
Input sink current, FEEDBACK
All typical values except for parameter changes with temperature are at TA = 25
°
C.
undervoltage lockout section (see Figure 2)
FEEDBACK = 0.5 V
0.3
0.7
mA
PARAMETER
TEST CONDITIONS
TL594C, TL594I
MIN
UNIT
MAX
Threshold voltage
TA = 25
°
C
TA = MIN to MAX
6
V
3.5
6.9
Hysteresis§
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
§Hysteresis is the difference between the positive-going input threshold voltage and the negative-going input threshold voltage.
100
mV
PARAMETER
TEST CONDITIONS
TL594C, TL594I
TYP
UNIT
MIN
MAX
Standby supply current
RT at Vref,
All other inputs and outputs open
VCC = 15 V
VCC = 40 V
See Figure 2
9
15
mA
11
18
Average supply current
All typical values except for parameter changes with temperature are at TA = 25
°
C.
DTC = 2 V,
12.4
mA
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