TL1454A_14 Datasheet, PDF (9/25 Pages) Texas Instruments – DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TL1454A, TL1454AY
DUALĆCHANNEL PULSEĆWIDTHĆMODULATION (PWM)
CONTROL CIRCUIT
SLVS423 A− MAY 2002 − REVISED SEPTEMBER 2002
electrical characteristics over recommended operating free-air temperature range, V_CC = 6 V,
f_osc = 500 kHz (unless otherwise noted) (continued)
oscillator
PARAMETER
fosc
Frequency
Standard deviation of frequency
Frequency change with voltage
Frequency change with temperature
Maximum ramp voltage
Minimum ramp voltage
TEST CONDITIONS
CT = 120 pF,
RT = 10 kΩ
VCC = 3.6 V to 20 V,
TA = TA(min) to 25°C
TA = 25°C to 85°C
TA = 25°C
TL1454A
MIN TYP MAX
500
50
10
−2 ± 30
−10 ± 30
1.8
1.1
UNIT
kHz
kHz
kHz
kHz
V
V
dead-time control (DTC)
PARAMETER
VIT
Input threshold voltage
VI(latched)
IIB
Latched-mode input voltage
Common-mode input bias current
Latched-mode (source) current
TEST CONDITIONS
Duty cycle = 0%
Duty cycle = 100%
DTC1, IN1+ ≈ 1.2 V
TA = 25°C
TL1454A
MIN TYP MAX
0.98 1.1 1.22
0.38 0.5 0.62
1.2
4
− 100
UNIT
V
V
µA
µA
error-amplifier
PARAMETER
VIO
IIO
IIB
VICR
AV
CMRR
VOM(max)
VOM(min)
IO ₊
IO _−
Input offset voltage
Input offset current
Input bias current
Input voltage range
Open-loop voltage gain
Unity-gain bandwidth
Common-mode rejection ratio
Positive output voltage swing
Negative output voltage swing
Output sink current
Output source current
TEST CONDITIONS
VO = 1.25 V, VIC = 1.25 V
VCC = 3.6 V to 20 V
RFB = 200 kΩ
VID = − 0.1 V, VO = 1.20 V
VID = 0.1 V, VO = 1.80 V
TL1454A
MIN
TYP
−0.2 to 1.40
70
60
2.3
0.1
− 45
− 160
80
3
80
2.43
0.63
0.5
− 70
MAX
6
100
− 500
0.8
UNIT
mV
nA
nA
V
dB
MHz
dB
V
mA
µA
output
PARAMETER
VOH
High-level output voltage
VOL
trv
tfv
Low-level output voltage
Output voltage rise time
Output voltage fall time
TEST CONDITIONS
IO = − 8 mA
IO = −8 mA @ VCC = >10 V
IO = − 40 mA
IO = 40 mA @ VCC = >10 V
IO = 8 mA
IO = 40 mA
CL = 2000 pF, TA = 25°C
TL1454A
MIN TYP
VCC−2 4.5
VCC−2.3 V
VCC−2 4.4
VCC−2.3 V
0.1
1.8
220
220
MAX
0.4
2.5
UNIT
V
V
ns
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