參數(shù)資料
型號： TL1454AY
廠商： Texas Instruments, Inc.
英文描述： DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT
中文描述： 雙通道脈寬調(diào)制（PWM）控制電路
文件頁數(shù)： 11/27頁
文件大?。?/td> 409K
代理商： TL1454AY
TL1454A, TL1454AY
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)
CONTROL CIRCUIT
SLVS423 A
–
MAY 2002
–
REVISED SEPTEMBER 2002
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics, V
CC
= 6 V, f
osc
= 500 kHz, T
A
= 25
°
C (unless otherwise noted) (continued)
dead-time control (DTC)
PARAMETER
TEST CONDITIONS
TL1454AY
MIN
UNIT
TYP
1.1
MAX
VIT
Input threshold voltage
Duty cycle = 0%
V
Duty cycle = 100%
0.5
VI(latched)
Latched-mode input voltage
1.2
V
μ
A
Latched-mode (source) current
–
100
error-amplifier
PARAMETER
TEST CONDITIONS
TL1454AY
MIN
UNIT
TYP
MAX
IIB
AV
Input bias current
VO = 1.25 V,
RFB = 200 k
VIC = 1.25 V
–
160
nA
Open-loop voltage gain
80
dB
Unity-gain bandwidth
3
MHz
CMRR
Common-mode rejection ratio
80
dB
VOM(max)
VOM(min)
IO+
IO
–
Positive output voltage swing
2.43
V
Negative output voltage swing
0.63
Output sink current
VID =
–
0.1 V,
VID = 0.1 V,
VO = 1.20 V
VO = 1.80 V
0.5
mA
μ
A
Output source current
–
70
output
PARAMETER
TEST CONDITIONS
TL1454AY
MIN
UNIT
TYP
4.5
MAX
VOH
High level output voltage
High-level output voltage
IO =
–
8 mA
IO =
–
40 mA
IO = 8 mA
IO = 40 mA
V
4.4
VOL
Low level output voltage
Low-level output voltage
0.1
V
1.8
trv
tfv
Output voltage rise time
Output voltage fall time
CL= 2000 pF
CL = 2000 pF
220
220
ns
supply current
PARAMETER
TEST CONDITIONS
TL1454AY
MIN
UNIT
TYP
MAX
ICC(stby)
Standby supply current
RT open, CT = 1.5 V, No load,
VO (COMP1, COMP2) = 1.25 V,
RT = 10 k
,
50% duty cycle,
3.1
mA
ICC(average)
Average supply current
CT = 120 pF,
Outputs open
3.5
mA
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