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参数资料
| 型号： | TL1454CN |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封装： | PLASTIC, DIP-16 |
| 文件页数： | 3/25页 |
| 文件大小： | 412K |
| 代理商： | TL1454CN |
TL1454, TL1454Y
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)
CONTROL CIRCUIT
SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
electrical characteristics, VCC = 6 V, fosc = 500 kHz, TA = 25°C (unless otherwise noted) (continued)
dead-time control (DTC)
PARAMETER
TEST CONDITIONS
TL1454Y
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIT
Input threshold voltage
Duty cycle = 0%
1.1
V
VIT
Input threshold voltage
Duty cycle = 100%
0.5
V
VI(latched) Latched-mode input voltage
1.2
V
Latched-mode (source) current
– 100
A
error-amplifier
PARAMETER
TEST CONDITIONS
TL1454Y
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IIB
Input bias current
VO = 1.25 V,
VIC = 1.25 V
– 160
nA
AV
Open-loop voltage gain
RFB = 200 k
80
dB
Unity-gain bandwidth
3
MHz
CMRR
Common-mode rejection ratio
80
dB
VOM(max) Positive output voltage swing
2.43
V
VOM(min)
Negative output voltage swing
0.63
V
IO+
Output sink current
VID = – 0.1 V,
VO = 1.20 V
0.5
mA
IO–
Output source current
VID = 0.1 V,
VO = 1.80 V
–70
A
output
PARAMETER
TEST CONDITIONS
TL1454Y
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High level output voltage
IO = – 8 mA
4.5
V
VOH
High-level output voltage
IO = – 40 mA
4.4
V
VOL
Low level output voltage
IO = 8 mA
0.1
V
VOL
Low-level output voltage
IO = 40 mA
1.8
V
trv
Output voltage rise time
CL = 2000 pF
220
ns
tfv
Output voltage fall time
CL = 2000 pF
220
ns
supply current
PARAMETER
TEST CONDITIONS
TL1454Y
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ICC(stby)
Standby supply current
RT open,
CT = 1.5 V, No load,
VO (COMP1, COMP2) = 1.25 V,
3.1
mA
ICC(average)
Average supply current
RT = 10 k,
50% duty cycle,
CT = 120 pF,
Outputs open
3.5
mA
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