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參數(shù)資料
| 型號： | AN-TL494 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:37; Series:MS27656; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:15; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No |
| 中文描述： | 脈寬調(diào)制控制電路 |
| 文件頁數(shù)： | 5/17頁 |
| 文件大?。?/td> | 449K |
| 代理商： | AN-TL494 |
www.ti.com
Electrical Characteristics
over recommended operating free-air temperature range, V
CC
= 15 V, f = 10 kHz (unless otherwise noted)
Output Section
Dead-Time Control Section
See Figure 1
PWM Comparator Section
See Figure 1
Total Device
Switching Characteristics
T
A
= 25
°
C
TL494
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS074E–JANUARY 1983–REVISED FEBRUARY 2005
PARAMETER
TEST CONDITIONS
V
CE
= 40 V, V
CC
= 40 V
V
CC
= V
C
= 40 V, V
E
= 0
V
E
= 0, I
C
= 200 mA
V
O(C1 or C2)
= 15 V, I
E
= –200 mA
V
I
= V
ref
MIN
TYP
(1)
MAX
100
–100
1.3
2.5
3.5
UNIT
μ
A
μ
A
Collector off-state current
Emitter off-state current
2
Common emitter
Emitter follower
1.1
1.5
Collector-emitter saturation voltage
V
Output control input current
mA
(1)
All typical values, except for temperature coefficient, are at T
A
= 25
°
C.
PARAMETER
TEST CONDITIONS
MIN TYP
(1)
MAX
–10
UNIT
μ
A
Input bias current (DEAD-TIME CTRL)
V
I
= 0 to 5.25 V
V
I
(DEAD-TIME CTRL) = 0, C
T
= 0.01
μ
F,
R
T
= 12 k
Zero duty cycle
Maximum duty cycle
–2
Maximum duty cycle, each output
45
%
3
3.3
Input threshold voltage (DEAD-TIME CTRL)
V
0
(1)
All typical values, except for temperature coefficient, are at T
A
= 25
°
C.
PARAMETER
TEST CONDITIONS
MIN TYP
(1)
MAX
4.5
UNIT
V
mA
Input threshold voltage (FEEDBACK)
Input sink current (FEEDBACK)
Zero duty cyle
V (FEEDBACK) = 0.7 V
4
0.3
0.7
(1)
All typical values, except for temperature coefficient, are at T
A
= 25
°
C.
PARAMETER
TEST CONDITIONS
MIN TYP
(1)
MAX
UNIT
V
CC
= 15 V
V
CC
= 40 V
6
9
10
15
R
= V
,
All other inputs and outputs open
Standby supply current
mA
Average supply current
V
I
(DEAD-TIME CTRL) = 2 V, See Figure 1
7.5
mA
(1)
All typical values, except for temperature coefficient, are at T
A
= 25
°
C.
PARAMETER
TEST CONDITIONS
MIN TYP
(1)
MAX
200
100
200
100
UNIT
ns
ns
ns
ns
Rise time
Fall time
Rise time
Fall time
100
25
100
40
Common-emitter configuration, See Figure 3
Emitter-follower configuration, See Figure 4
(1)
All typical values, except for temperature coefficient, are at T
A
= 25
°
C.
5
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