TL1453CPWR Datasheet, PDF (4/8 Pages) Texas Instruments – DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUIT

TL1453C
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUIT
SLVS039A – FEBRUARY 1990 – REVISED DECEMBER 1990
electrical characteristics over recommended operating free-air temperature range, V_CC = 6 V,
f = 200 kHz (unless otherwise noted) (continued)
pwm comparator section
PARAMETER
Input threshold voltage at f = 10 kHz (pins 5 and 12)
Input (sink) current (pins 5 and 12)
Input (source) current (pins 5 and 12)
total device
PARAMETER
Standby supply current
Average supply current
† _{All typical values are at TA = 25°C.}
TEST CONDITIONS
Zero duty cycle
Maximum duty cycle
VI = 1.25 V
VI = 1.25 V
MIN TYP†
2.05
1.2 1.45
0.5 1.6
– 45 – 70
MAX
2.25
UNIT
V
mA
µA
TEST CONDITIONS
Off-state
RT = 10 kΩ
MIN TYP†
1.3
1.7
MAX
1.8
2.4
UNIT
mA
mA
test circuit
CT
330 pF
TEST
INPUT
1
10 kΩ ₂
RT
3
4
5
6
7
8
CT
TL1453C
RT
IN+1
IN–1
1 FEEDBACK
1 DEAD-TIME
CONTROL
1 OUTPUT
GND
16
REF
15
SCP
14
IN+2
13
IN–2
12
2 FEEDBACK
2 DEAD-TIME 11
CONTROL
10
2 OUTPUT
VCC ⁹
0.1 µF
TEST
INPUT
OUTPUT 2
RL
VCC
RL
OUTPUT 1
4
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