TL1453C

DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUIT

SLVS039A – FEBRUARY 1990 – REVISED DECEMBER 1990

3

POST OFFICE BOX 655303

f = 200 kHz (unless otherwise noted) (continued)

undervoltage lockout section

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Upper threshold voltage (pin 9)

IOref = 0.1 mA, TA = 25°C

2.72

V

Lower threshold voltage (pin 9)

IOref = 0.1 mA, TA = 25°C

2.6

V

Hysteresis (pin 9)

IOref = 0.1 mA, TA = 25°C

80

120

mV

oscillator section

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Frequency

CT = 330 pF, RT = 10 kΩ

200

kHz

Standard deviation of frequency

VCC, TA, RT, CT values are constant

10%

Frequency change with voltage

VCC = 3.6 V to 40 V

1%

Frequency change with temperature

TA = –20°C to 25°C

– 0.4%

±2%

Frequency change with tem erature

TA = 25°C to 85°C

– 0.2%

±2%

dead-time control section

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Input bias current (pins 6 and 11)

1

µA

Input threshold voltage at f

10kHz (pins 6 and 11)

Zero duty cycle

2.05

2.25

V

Input threshold voltage at f = 10kHz (pins 6 and 11)

Maximum duty cycle

1.2

1.45

V

error-amplifier section

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Input offset voltage

VO (pins 5 and 12) = 1.25 V

±6

mV

Input offset current

VO (pins 5 and 12) = 1.25 V

±100

nA

Input bias current

VO (pins 5 and 12) = 1.25 V

160

500

nA

1.05

Common-mode input voltage range

VCC = 3.6 V to 40 V

1.05

to

V

gg

CC

1.45

Open-loop voltage amplification

RF = 200 kΩ

70

80

dB

Unity-gain bandwidth

1.5

MHz

Common-mode rejection ratio

60

80

dB

Positive output voltage swing

Vref – 0.1

V

Negative output voltage swing

1

V

Output (sink) current (pins 5 and 12)

VID = – 0.1 V, VO = 1.25 V

0.5

1.6

mA

Output (source) current (pins 5 and 12)

VID = 0.1 V,

VO = 1.25 V

–45

–70

µA

output section

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Collector off state current

VCC = 0, VO = 50 V

10

µA

Collector off-state current

VO = 50 V

10

µA

Output saturation voltage

IO = 10 mA

1.2

2

V

Short-circuit output current

VO = 6 V

90

mA

† All typical values are at TA = 25°C.