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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
electrical characteristics over recommended operating free-air temperature range, V
f = 200 kHz (unless otherwise noted)
= 6 V,
CC
reference section
TL1451AC
PARAMETER
TEST CONDITIONS
UNIT
†
TYP
MIN
MAX
Output voltage (pin 16)
I
= 1 mA
2.4
2.5
–0.1%
–0.2%
2
2.6
±1%
±1%
12.5
7.5
V
O
T
= –20°C to 25°C
= 25°C to 85°C
A
Output voltage change with temperature
T
A
Input voltage regulation
Output voltage regulation
Short-circuit output current
V
= 3.6 V to 40 V
CC
= 0.1 mA to 1 mA
mV
mV
mA
I
O
1
V
= 0
3
10
30
O
†
All typical values are at T = 25°C.
A
undervoltage lockout section
TL1451AC
PARAMETER
TEST CONDITIONS
UNIT
†
TYP
MIN
MAX
Upper threshold voltage (V
Lower threshold voltage (V
)
)
2.72
2.6
V
V
CC
CC
I
= 0.1 mA,
T = 25°C
A
O(ref)
Hysteresis (V
CC
)
80
120
1.9
mV
V
Reset threshold voltage (V
CC
)
1.5
†
All typical values are at T = 25°C.
A
short-circuit protection control section
TL1451AC
PARAMETER
TEST CONDITIONS
UNIT
†
MIN TYP
MAX
0.75
230
120
–20
Input threshold voltage (SCP)
Standby voltage (SCP)
T
= 25°C
0.65
140
0.7
185
60
V
A
No pullup
No pullup
mV
mV
µA
V
Latched input voltage (SCP)
Input (source) current
V = 0.7 V,
T
A
= 25°C
–10
–15
1.18
I
Comparator threshold voltage (FEEDBACK)
†
All typical values are at T = 25°C.
A
oscillator section
TL1451C
PARAMETER
TEST CONDITIONS
UNIT
†
TYP
MIN
MAX
Frequency
C
C
= 330 pF,
= 330 pF,
R
R
= 10 kΩ
= 10 kΩ
200
10%
kHz
T
T
Standard deviation of frequency
Frequency change with voltage
T
T
V
CC
= 3.6 V to 40 V
1%
T
= –20°C to 25°C
= 25°C to 85°C
–0.4%
–0.2%
±2%
±2%
A
Frequency change with temperature
T
A
†
All typical values are at T = 25°C.
A
4
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