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TL1451ACPWR [TI]

SUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS; SUAL脉宽调制控制电路
TL1451ACPWR
型号： TL1451ACPWR
厂家： TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述：

SUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SUAL脉宽调制控制电路
文件： 总37页 (文件大小：1287K)
中文：  中文翻译
下载：  下载PDF数据表文档文件
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ꢀꢁ ꢂꢃ ꢄꢂ ꢅ  
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
D, DB, N, NS, PW, OR J PACKAGE  
(TOP VIEW)  
D
D
D
D
D
D
D
D
D
Complete PWM Power Control Circuitry  
Completely Synchronized Operation  
Internal Undervoltage Lockout Protection  
Wide Supply Voltage Range  
REF  
SCP  
2IN+  
2IN–  
2FEEDBACK  
2DTC  
CT  
RT  
1IN+  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
Internal Short-Circuit Protection  
Oscillator Frequency . . . 500 kHz Max  
ERROR  
AMPLIFIER 2  
ERROR  
AMPLIFIER 1 1IN–  
1FEEDBACK  
1DTC  
Variable Dead Time Provides Control Over  
Total Range  
2OUT  
1OUT  
GND  
Internal Regulator Provides a Stable 2.5-V  
Reference Supply  
V
CC  
Available in Q-Temp Automotive  
HighRel Automotive Applications  
Configuration Control / Print Support  
Qualification to Automotive Standards  
FK PACKAGE  
(TOP VIEW)  
description  
3
2
1
20 19  
1IN+  
1IN–  
2IN+  
4
5
6
7
8
18  
17  
16  
15  
14  
The TL1451A incorporates on a single monolithic  
chip all the functions required in the construction  
of two pulse-width-modulation (PWM) control  
circuits. Designed primarily for power-supply  
control, the TL1451A contains an on-chip 2.5-V  
regulator, two error amplifiers, an adjustable  
oscillator, two dead-time comparators, undervol-  
tage lockout circuitry, and dual common-emitter  
output transistor circuits.  
2IN–  
NC  
NC  
1FEEDBACK  
IDTC  
2FEEDBACK  
2DTC  
9
10 11 12 13  
The uncommitted output transistors provide  
common-emitter output capability for each  
controller. The internal amplifiers exhibit a common-mode voltage range from 1.04 V to 1.45 V. The dead-time  
control (DTC) comparator has no offset unless externally altered and can provide 0% to 100% dead time. The  
on-chip oscillator can be operated by terminating RT and CT. During low V  
lockout control circuit feature locks the outputs off until the internal circuitry is operational.  
conditions, the undervoltage  
CC  
The TL1451AC is characterized for operation from –20°C to 85°C. The TL1451AQ is characterized for operation  
from –40°C to 125°C. The TL1451AM is characterized for operation from –55°C to 125°C.  
AVAILABLE OPTIONS  
PACKAGED DEVICES  
SMALL  
OUTLINE  
(D)  
SMALL  
SMALL  
OUTLINE  
(NS)  
CHIP  
CARRIER  
(FK)  
CERAMIC  
DIP  
T
A
PLASTIC DIP  
(N)  
TSSOP  
(PW)  
OUTLINE  
†
†
(DB)  
(J)  
–20°C to 85°C  
–40°C to 125°C  
–55°C to 125°C  
TL1451ACD  
TL1451AQD  
—
TL1451ACDB  
TL1451ACN  
TL1451ACNS TL1451ACPW  
—
—
—
—
—
—
—
—
—
—
—
—
TL1451AMFK  
TL1451AMJ  
†
The DB and PW packages are only available left-end taped and reeled (add LE suffix, i.e., TL1451ACPWLE).  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
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Copyright 1999, Texas Instruments Incorporated  
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1
www.ti.com  
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ꢔ
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
functional block diagram  
V
CC  
RT  
CT  
9
2
1
11  
2 DTC  
14  
10  
16  
IN+  
+
ERROR  
AMPLIFIER 2  
2 OUTPUT  
13  
12  
–
IN–  
2 FEEDBACK  
1 FEEDBACK  
PWM  
COMP  
Oscillator  
1/2 V  
ref  
5
Reference  
Voltage  
REF  
12 kΩ  
15  
SCP  
170 kΩ  
UVLO  
R
R
S
3
4
IN+  
+
ERROR  
AMPLIFIER 1  
7
8
1 OUTPUT  
–
IN–  
PWM  
COMP  
6
1 DTC  
GND  
COMPONENT COUNT  
Resistors  
65  
8
Capacitors  
Transistors  
JFETs  
105  
18  
2
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
†
absolute maximum ratings over operating free-air temperature range  
Supply voltage, V  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 V  
CC  
Amplifier input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 V  
Collector output voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 V  
Collector output current, I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 mA  
Continuous power total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table  
I
O
O
Operating free-air temperature range, T C suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20°C to 85°C  
A
Q suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 125°C  
M suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C  
Storage temperature range, T  
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C  
stg  
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and  
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not  
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
DISSIPATION RATING TABLE  
T
≤ 25°C  
DERATING FACTOR  
T
= 70°C  
T
= 85°C  
T = 125°C  
A
A
A
A
PACKAGE  
POWER RATING  
1088 mW  
775 mW  
ABOVE T = 25°C  
POWER RATING  
POWER RATING  
POWER RATING  
A
D
DB  
N
8.7 mW/°C  
6.2 mW/°C  
8.0 mW/°C  
4.0 mW/°C  
6.7 mW/°C  
11.0 mW/°C  
11.0 mW/°C  
696 mW  
566 mW  
218 mW  
—
496 mW  
403 mW  
1000 mW  
500 mW  
640 mW  
520 mW  
—
NS  
PW  
FK  
J
320 mW  
260 mW  
—
838 mW  
536 mW  
436 mW  
168 mW  
275 mW  
275 mW  
1375 mW  
1375 mW  
880 mW  
715 mW  
880 mW  
715 mW  
recommended operating conditions  
MIN  
MAX  
50  
UNIT  
Supply voltage, V  
CC  
3.6  
V
V
Amplifier input voltage, V  
1.05  
1.45  
50  
I
Collector output voltage, V  
V
O
Collector output current, I  
20  
mA  
µA  
kΩ  
pF  
kΩ  
kHz  
O
Current into feedback terminal  
Feedback resistor, R  
45  
100  
150  
5.1  
1
F
Timing capacitor, C  
15000  
100  
500  
85  
T
Timing resistor, R  
T
Oscillator frequency  
C suffix  
Q suffix  
M suffix  
–20  
–40  
–55  
Operating free-air temperature, T  
125  
125  
°C  
A
3
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ꢔ
ꢔ
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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ꢔ
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
dead-time control section  
TL1451AC  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
MIN TYP  
MAX  
Input bias current (DTC)  
1
µA  
µA  
V
Latch mode (source) current (DTC)  
Latched input voltage (DTC)  
T
= 25°C  
–80  
–145  
A
I
O
= 40 µA  
2.3  
Zero duty cycle  
2.05  
1.45  
2.25  
Input threshold voltage at f = 10 kHz (DTC)  
V
Maximum duty cycle  
1.2  
†
All typical values are at T = 25°C.  
A
error-amplifier section  
TL1451AC  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
TYP  
MIN  
MAX  
±6  
Input offset voltage  
Input offset current  
Input bias current  
V
O
V
O
V
O
(FEEDBACK) = 1.25 V  
(FEEDBACK) = 1.25 V  
(FEEDBACK) = 1.25 V  
mV  
nA  
nA  
±100  
500  
160  
1.05  
to  
1.45  
Common-mode input voltage range  
V
= 3.6 V to 40 V  
V
CC  
Open-loop voltage amplification  
Unity-gain bandwidth  
R
= 200 kΩ  
70  
80  
1.5  
80  
dB  
MHz  
dB  
V
F
Common-mode rejection ratio  
Positive output voltage swing  
Negative output voltage swing  
Output (sink) current (FEEDBACK)  
Output (source) current (FEEDBACK)  
60  
V
–0.1  
ref  
1
V
V
V
= –0.1 V,  
V
V
= 1.25 V  
= 1.25 V  
0.5  
–45  
1.6  
mA  
µA  
ID  
O
= 0.1 V,  
–70  
ID  
O
†
All typical values are at T = 25°C.  
A
output section  
TL1451AC  
PARAMETER  
TEST CONDITIONS  
= 50 V  
UNIT  
†
MIN TYP  
MAX  
10  
Collector off-state current  
Output saturation voltage  
Short-circuit output current  
V
O
µA  
V
I
O
= 10 mA  
1.2  
90  
2
V
O
= 6 V  
mA  
†
All typical values are at T = 25°C.  
A
pwm comparator section  
TL1451AC  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
MIN TYP  
MAX  
Zero duty cycle  
2.05  
1.45  
2.25  
Input threshold voltage at f = 10 kHz (FEEDBACK)  
V
Maximum duty cycle  
1.2  
†
All typical values are at T = 25°C.  
A
total device  
TL1451AC  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
MIN TYP  
MAX  
1.8  
Standby supply current  
Average supply current  
Off-state  
1.3  
1.7  
mA  
mA  
R
T
= 10 kΩ  
2.4  
†
All typical values are at T = 25°C.  
A
5
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ꢔ
ꢔ
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  
TL1451AQ, TL1451AM  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
TYP  
MIN  
2.40  
2.35  
MAX  
2.60  
2.65  
T
A
= 25°C  
2.50  
2.46  
Output voltage (pin 16)  
I
O
= 1 mA  
V
T
A
= MIN and 125°C  
Output voltage change with temperature  
Input voltage regulation  
–0.63% *±4%  
T
= 25°C  
= 125°C  
= MIN  
2.0  
0.7  
0.3  
1.0  
0.3  
0.3  
10  
12.5  
15  
A
T
A
V
I
= 3.6 V to 40 V  
mV  
CC  
T
A
30  
T
A
= 25°C  
= 125°C  
= MIN  
7.5  
14  
T
A
Output voltage regulation  
Short-circuit output current  
= 0.1 mA to 1 mA  
mV  
mA  
O
T
A
20  
V
O
= 0  
3
30  
*These parameters are not production tested.  
†
All typical values are at T = 25°C unless otherwise indicated.  
A
undervoltage lockout section  
TL1451AQ, TL1451AM  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
TYP  
MIN  
MAX  
T
= 25°C  
= 125°C  
= MIN  
2.72  
1.70  
3.15  
2.60  
1.65  
3.09  
120  
50  
A
T
A
Upper threshold voltage (V  
Lower threshold voltage (V  
)
)
V
CC  
T
A
T
A
= 25°C  
= 125°C  
= MIN  
T
A
V
mV  
V
CC  
T
A
T
A
= 25°C  
= 125°C  
= MIN  
80  
10  
T
A
Hysteresis (V  
CC  
)
T
A
10  
60  
T
= 25°C  
= 125°C  
= MIN  
1.50  
0.95  
1.50  
A
Reset threshold voltage (V  
CC  
)
T
A
T
A
†
All typical values are at T = 25°C unless otherwise indicated.  
A
6
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
short-circuit protection control section  
TL1451AQ, TL1451AM  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
MIN TYP  
MAX  
750  
550  
950  
230  
120  
120  
120  
T
= 25°C  
= 125°C  
= MIN  
650  
400  
800  
140  
700  
478  
880  
185  
60  
A
T
A
Input threshold voltage (SCP)  
Standby voltage (SCP)  
mV  
mV  
T
A
T
A
= 25°C  
= 125°C  
= MIN  
T
A
70  
Latched input voltage (SCP)  
mV  
T
A
60  
Equivalent timing resistance  
170  
1.18  
kΩ  
Comparator threshold voltage (FEEDBACK)  
V
†
All typical values are at T = 25°C unless otherwise indicated.  
A
oscillator section  
TL1451AQ, TL1451AM  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
TYP  
MIN  
MAX  
T
= 25°C  
= 125°C  
= MIN  
200  
195  
193  
2%  
1%  
1%  
3%  
A
C
R
= 330 pF,  
= 10 kΩ  
T
T
T
A
Frequency  
kHz  
T
A
Standard deviation of frequency  
Frequency change with voltage  
C
= 330 pF,  
R
= 10 kΩ  
= 25°C  
= 125°C  
= MIN  
T
T
T
A
T
A
V
CC  
= 3.6 V to 40 V  
T
A
Frequency change with temperature  
1.37% *±10%  
*These parameters are not production tested.  
†
All typical values are at T = 25°C unless otherwise indicated.  
A
dead-time control section  
TL1451AQ, TL1451AM  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
MIN TYP  
MAX  
T
= 25°C  
1
3
A
Input bias current (DTC)  
µA  
µA  
T
A
= MIN and 125°C  
Latch mode (source) current (DTC)  
Latched input voltage (DTC)  
–80  
2.30  
2.22  
2.28  
–145  
T
A
= 25°C  
= 125°C  
= MIN  
T
A
2.32  
2.40  
2.05  
1.45  
V
V
T
A
Zero duty cycle  
*2.25  
Input threshold voltage at f = 10 kHz (DTC)  
*These parameters are not production tested.  
Maximum duty cycle  
*1.20  
†
All typical values are at T = 25°C unless otherwise indicated.  
A
7
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
error-amplifier section  
TL1451AQ, TL1451AM  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
TYP  
MIN  
MAX  
±6  
T
A
= 25°C  
= 125°C  
= MIN  
T
±10  
±12  
±100  
±100  
±200  
500  
500  
700  
Input offset voltage  
V
(FEEDBACK) = 1.25 V  
(FEEDBACK) = 1.25 V  
(FEEDBACK) = 1.25 V  
mV  
nA  
A
O
T
A
T
A
= 25°C  
= 125°C  
= MIN  
T
A
Input offset current  
V
O
T
A
T
A
= 25°C  
= 125°C  
= MIN  
160  
100  
142  
T
A
Input bias current  
V
V
nA  
V
O
T
A
1.05  
to  
1.45  
Common-mode input voltage range  
Open-loop voltage amplification  
= 3.6 V to 40 V  
CC  
T
A
= 25°C  
= 125°C  
= MIN  
70  
70  
64  
80  
80  
80  
1.5  
80  
T
A
R
= 200 kΩ  
dB  
F
T
A
Unity-gain bandwidth  
MHz  
dB  
V
Common-mode rejection ratio  
Positive output voltage swing  
Negative output voltage swing  
60  
2
1
V
T
= 25°C  
= 125°C  
= MIN  
0.5  
0.4  
1.6  
1.8  
A
T
A
Output (sink) current (FEEDBACK)  
Output (source) current (FEEDBACK)  
V
= –0.1 V, V = 1.25 V  
mA  
ID  
O
T
A
0.3  
1.7  
T
= 25°C  
= 125°C  
= MIN  
–45  
–25  
–15  
–70  
–50  
–70  
A
V
ID  
= 0.1 V, V = 1.25 V  
T
A
µA  
O
T
A
†
All typical values are at T = 25°C unless otherwise indicated.  
A
output section  
TL1451AQ, TL1451AM  
PARAMETER  
TEST CONDITIONS  
= 50 V  
UNIT  
†
MIN TYP  
MAX  
10  
Collector off-state current  
V
O
µA  
T
= 25°C  
= 125°C  
= MIN  
= 6 V  
1.20  
1.60  
1.36  
90  
2.0  
2.4  
2.2  
A
T
A
Output saturation voltage  
Short-circuit output current  
V
T
A
V
mA  
O
†
All typical values are at T = 25°C unless otherwise indicated.  
A
pwm comparator section  
TL1451AQ, TL1451AM  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
MIN TYP  
MAX  
Zero duty cycle  
2.05  
1.45  
*2.25  
Input threshold voltage at f = 10 kHz (FEEDBACK)  
*These parameters are not production tested.  
V
Maximum duty cycle  
*1.20  
†
All typical values are at T = 25°C unless otherwise indicated.  
A
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
total device  
TL1451AQ, TL1451AM  
PARAMETER  
TEST CONDITIONS  
UNIT  
†
MIN TYP  
MAX  
1.8  
Standby supply current  
Average supply current  
Off-state  
= 10 kΩ  
1.3  
1.7  
mA  
mA  
R
T
2.4  
†
All typical values are at T = 25°C unless otherwise indicated.  
A
PARAMETER MEASUREMENT INFORMATION  
Test  
Input  
S1  
V
CC  
= 5 V  
R
L
C
0.47 µF  
PE  
4.7 kΩ  
OUT1  
OUT2  
R
L
4.7 kΩ  
16 15 14 13 12 11 10  
TL1451A  
9
1
2
3
4
5
6
7
8
R
10 kΩ  
C
T
T
330 pF  
Test  
Input  
Figure 1. Test Circuit  
Oscillator Triangle Waveform  
Error Amplifier Output  
Dead-Time Input Voltage  
Short-Circuit Protection  
Comparator Input Voltage  
2.0 V  
1.6 V  
1.4 V  
1.25 V  
H
PWM Comparator Output Voltage  
L
Dead Time 100%  
H
Output Transistor Collector  
Waveform  
L
0.6 V  
Protection Enable  
Terminal Waveform  
0 V  
H
†
t
pe  
Short-Circuit Protection  
Comparator Output  
L
3.6 V  
2.8 V TYP  
Power Supply Voltage  
0 V  
†
6
Protection Enable Time, t = (0.051 x 10 x C ) in seconds  
pe pe  
Figure 2. TL1451A Timing Diagram  
9
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
TRIANGLE OSCILLATOR FREQUENCY  
OSCILLATOR FREQUENCY VARIATION  
vs  
vs  
TIMING RESISTANCE  
FREE-AIR TEMPERATURE  
3
2
1 M  
100 k  
10 k  
1 k  
V
R
C
= 3.6 V  
= 10 kΩ  
= 330 pF  
V
T
A
= 5 V  
= 25°C  
CC  
T
T
CC  
f
= 200 kHz  
osc  
C
= 150 pF  
T
1
0
C
= 1500 pF  
T
–1  
–2  
–3  
C
= 15000 pF  
T
–25  
0
25  
50  
75  
100  
1 k  
4 k 10 k  
40 k 100 k  
400 k 1 M  
T
A
– Free-Air Temperature – °C  
R
– Timing Resistance – Ω  
T
Figure 3  
Figure 4  
TRIANGLE WAVEFORM PERIOD  
TRIANGLE WAVEFORM SWING VOLTAGE  
vs  
vs  
TIMING CAPACITANCE  
TIMING CAPACITANCE  
2
10  
1
10  
0
10  
2.6  
2.4  
V
R
T
A
= 5 V  
= 5.1 kΩ  
= 25°C  
CC  
T
V
R
T
A
= 5 V  
= 5.1 kΩ  
= 25°C  
CC  
T
2.2  
2
1.8  
1.6  
1.4  
1.2  
1
–1  
10  
0.8  
10  
1
2
10  
3
10  
4
10  
5
10  
1
2
10  
3
10  
4
10  
5
10  
10  
C
– Timing Capacitance – pF  
C
– Timing Capacitance – pF  
T
T
Figure 5  
Figure 6  
10  
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ꢔ
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
REFERENCE OUTPUT VOLTAGE VARIATION  
REFERENCE OUTPUT VOLTAGE VARIATION  
vs  
vs  
FREE-AIR TEMPERATURE  
FREE-AIR TEMPERATURE  
30  
20  
30  
20  
V
I
= 40 V  
V
I
= 3.6 V  
= 1 mA  
CC  
CC  
I(ref)  
= 1 mA  
I(ref)  
10  
10  
0
0
–10  
– 20  
– 30  
–10  
– 20  
– 30  
– 25  
0
25  
50  
75  
100  
– 25  
0
25  
50  
75  
100  
T
A
– Free-Air Temperature – °C  
T
A
– Free-Air Temperature – °C  
Figure 7  
Figure 8  
DROPOUT VOLTAGE VARIATION  
REFERENCE OUTPUT VOLTAGE  
vs  
vs  
FREE-TEMPERATURE  
SUPPLY VOLTAGE  
1.1  
1
3
I
= 1 mA  
T
A
= 25°C  
I(ref)  
2.5  
2
0.9  
0.8  
0.7  
0.6  
1.5  
1
0.5  
0
– 25  
0
25  
50  
75  
100  
0
5
10  
15  
20  
25  
30  
35  
40  
T
A
– Free-Air Temperature – °C  
V
CC  
– Supply Voltage – V  
Figure 9  
Figure 10  
11  
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
UNDERVOLTAGE LOCKOUT  
HYSTERESIS CHARACTERISTICS  
UNDERVOLTAGE LOCKOUT CHARACTERISTIC  
300  
3.5  
3.25  
3
6
5
4
3
2
1
0
T
A
= 25°C  
T
A
= –20°C  
T
= 85°C  
A
250  
200  
150  
100  
50  
Threshold Voltage –V  
(Left Scale)  
TH  
Threshold Voltage –V  
(Left Scale)  
TL  
2.75  
2.5  
5 V  
Hysteresis Voltage  
(Right Scale)  
R
L
2.25  
2
7,10  
8
I = I  
O
V
DE  
0
I
O
= 10 mA  
–25  
0
25  
50  
75  
100  
0
1
2
3
4
5
T
A
– Free-Air Temperature – °C  
V
CC  
– Supply Voltage – V  
Figure 11  
Figure 12  
SHORT-CIRCUIT PROTECTION CHARACTERISTICS  
3
1.30  
Short-Circuit Protection  
Latch Reset Supply Voltage  
(Right Scale)  
2.5  
2
1.25  
1.20  
1.15  
1.10  
Short-Circuit Protection  
Comparator Threshold Voltage  
(Left Scale)  
1.5  
1
– 25  
0
25  
50  
75  
100  
T
A
– Free-Air Temperature – °C  
Figure 13  
12  
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
PROTECTION ENABLE TIME  
vs  
PROTECTION ENABLE CAPACITANCE  
18  
15  
12  
9
6
3
0
0
50  
100  
150  
200  
250  
C
– Protection Enable Capacitance – µF  
PE  
SCP  
15  
V
ref  
16  
170 kΩ  
V
ref  
V
ref  
Short-circuit  
Protection  
Comparator  
12 kΩ  
S
R
C
PE  
Protection  
Latch  
U.V.L.O.  
ERROR AMP 1  
ERROR AMP 2  
1.25 V  
+
–
Figure 14  
13  
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
OPEN-LOOP VOLTAGE AMPLIFICATION  
ERROR AMP MAXIMUM OUTPUT VOLTAGE SWING  
vs  
vs  
FREQUENCY  
FREQUENCY  
2.25  
2
90  
80  
V
T
= 5 V  
V
T
= 5 V  
CC  
= 25°C  
CC  
= 25°C  
A
A
1.75  
1.5  
70  
60  
50  
1.25  
1
0.75  
0.5  
40  
30  
20  
0.25  
0
10  
0
1 k  
10 k  
100 k  
1 M  
10 M  
100  
1 k  
10 k  
100 k  
1 M 2 M  
f – Frequency – Hz  
f – Frequency – Hz  
Figure 15  
Figure 16  
GAIN (AMPLIFIER IN  
UNITY-GAIN CONFIGURATION)  
vs  
FREQUENCY  
10  
V
T
A
= 5 V  
= 25°C  
CC  
5
0
–5  
–10  
–15  
–20  
1 k  
10 k  
100 k  
1 M  
10 M  
f – Frequency – Hz  
Figure 17  
14  
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
CLOSED-LOOP GAIN AND PHASE SHIFT  
vs  
FREQUENCY  
70  
C :  
X
47 pF  
470 pF  
4700 pF  
V
R
C
= 5 V  
= 150 Ω  
= 470 pF  
CC  
ref  
ref  
60  
50  
40  
30  
T
A
= 25°C  
Phase Shift  
(Right Scale)  
0°  
Closed-Loop Gain  
(Left Scale)  
–10°  
–20°  
–30°  
–40°  
20  
–50°  
–60°  
–70°  
10  
0
–80°  
–90°  
100  
1 k  
10 k  
100 k  
1 M  
f – Frequency – Hz  
V
ref  
+
–
C
39 kΩ  
x
R
ref  
C
ref  
39 kΩ  
Test Circuit  
Figure 18  
15  
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
CLOSED-LOOP GAIN AND PHASE SHIFT  
vs  
FREQUENCY  
70  
V
R
C
= 5 V  
= 15 Ω  
= 470 pF  
C :  
X
47 pF  
470 pF  
4700 pF  
CC  
ref  
ref  
60  
50  
40  
30  
T
A
= 25°C  
Phase Shift  
(Right Scale)  
0°  
Closed-Loop Gain  
(Left Scale)  
–10°  
–20°  
–30°  
–40°  
20  
–50°  
–60°  
–70°  
10  
0
–80°  
–90°  
100  
1 k  
10 k  
100 k  
1 M  
f – Frequency – Hz  
V
ref  
+
–
C
39 kΩ  
x
R
ref  
C
ref  
39 kΩ  
Test Circuit  
Figure 19  
16  
www.ti.com  
ꢀꢁ ꢂꢃ ꢄꢂ ꢅ  
ꢆꢇꢅ ꢁ ꢈꢇꢁ ꢉ ꢊꢋꢌ ꢍꢆꢀ ꢎꢋꢏ ꢐ ꢆꢇꢁ ꢅꢀ ꢍꢐ ꢑ ꢒꢐ ꢑꢀ ꢓꢐ ꢁ ꢒ ꢍꢓ ꢒꢇ ꢍ ꢀꢉ  
ꢔ
ꢔ
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
CLOSED-LOOP GAIN AND PHASE SHIFT  
vs  
FREQUENCY  
70  
V
R
C
= 5 V  
= 15 Ω  
= 470 pF  
C :  
X
47 pF  
470 pF  
4700 pF  
CC  
ref  
ref  
60  
50  
40  
30  
T
A
= 25°C  
Phase Shift  
(Right Scale)  
0°  
Closed-Loop Gain  
(Left Scale)  
–10°  
–20°  
–30°  
–40°  
20  
–50°  
–60°  
–70°  
10  
0
–80°  
–90°  
100  
1 k  
10 k  
100 k  
1 M  
f – Frequency – Hz  
V
ref  
+
–
C
39 kΩ  
x
R
ref  
C
ref  
39 kΩ  
Test Circuit  
Figure 20  
17  
www.ti.com  
ꢀ ꢁ ꢂ ꢃꢄ ꢂ ꢅ  
ꢆ ꢇꢅꢁ ꢈꢇ ꢁ ꢉꢊꢋꢌ ꢍ ꢆꢀ ꢎꢋꢏ ꢐꢆꢇ ꢁ ꢅꢀꢍ ꢐ ꢑ ꢒꢐ ꢑꢀ ꢓꢐ ꢁ ꢒꢍ ꢓꢒꢇꢍ ꢀꢉ  
ꢔ
ꢔ
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
CLOSED-LOOP GAIN AND PHASE SHIFT  
vs  
FREQUENCY  
70  
V
C
T
A
= 5 V  
= 470 pF  
= 25°C  
CC  
ref  
60  
50  
40  
30  
0°  
–10°  
–20°  
Closed-Loop Gain  
(Left Scale)  
Phase Shift  
(Right Scale)  
–30°  
–40°  
20  
–50°  
–60°  
–70°  
10  
0
–80°  
–90°  
100  
1 k  
10 k  
100 k  
1 M  
f – Frequency – Hz  
V
ref  
+
–
39 kΩ  
C
ref  
39 kΩ  
Test Circuit  
Figure 21  
18  
www.ti.com  
ꢀꢁ ꢂꢃ ꢄꢂ ꢅ  
ꢆꢇꢅ ꢁ ꢈꢇꢁ ꢉ ꢊꢋꢌ ꢍꢆꢀ ꢎꢋꢏ ꢐ ꢆꢇꢁ ꢅꢀ ꢍꢐ ꢑ ꢒꢐ ꢑꢀ ꢓꢐ ꢁ ꢒ ꢍꢓ ꢒꢇ ꢍ ꢀꢉ  
ꢔ
ꢔ
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
OUTPUT SINK CURRENT  
vs  
COLLECTOR OUTPUT SATURATION VOLTAGE  
120  
110  
100  
90  
T
A
= –20°C  
T
A
= 25°C  
T
A
= 85°C  
80  
70  
60  
50  
40  
30  
20  
10  
0
V
CC  
= 3.6 V  
0
5
10  
15  
20  
Collector Output Saturation Voltage – V  
Figure 22  
MAXIMUM OUTPUT VOLTAGE SWING  
vs  
FREE-AIR TEMPERATURE  
V
V
V
V
V
V
V
–0.01  
–0.02  
–0.03  
–0.04  
–0.05  
–0.06  
–0.07  
1
V
ref  
O(ref)  
O(ref)  
O(ref)  
O(ref)  
O(ref)  
O(ref)  
O(ref)  
33 kΩ  
33 kΩ  
0.9  
0.8  
+
Maximum Output Voltage  
Swing (Right Scale)  
–
R
L
0.7  
0.6  
0.5  
100 kΩ  
V
vom – 1  
Maximum Output  
Voltage Swing (Right Scale)  
V
R
= 3.6 V  
= 100 kΩ  
CC  
L
V
V
V
= 1.25 V  
= 1.15 V (Right Scale)  
= 1.35 V (Left Scale)  
OM+1  
OM –1  
OM –1  
TEST CIRCUIT  
–25  
0
25  
50  
75  
100  
T
A
– Free-Air Temperature – °C  
Figure 23  
19  
www.ti.com  
ꢀ ꢁ ꢂ ꢃꢄ ꢂ ꢅ  
ꢆ ꢇꢅꢁ ꢈꢇ ꢁ ꢉꢊꢋꢌ ꢍ ꢆꢀ ꢎꢋꢏ ꢐꢆꢇ ꢁ ꢅꢀꢍ ꢐ ꢑ ꢒꢐ ꢑꢀ ꢓꢐ ꢁ ꢒꢍ ꢓꢒꢇꢍ ꢀꢉ  
ꢔ
ꢔ
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
TYPICAL CHARACTERISTICS  
OUTPUT TRANSISTOR ON DUTY CYCLE  
STANDBY CURRENT  
vs  
SUPPLY VOLTAGE  
vs  
DEAD-TIME INPUT VOLTAGE  
0
10  
20  
30  
V
R
C
= 3.6 V  
= 10kΩ  
= 330 pF  
CC  
T
T
T
A
= 25°C  
2
1.75  
1.5  
1.25  
1
40  
50  
60  
0.75  
0.5  
70  
80  
0.25  
0
90  
100  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
4
0
10  
20  
30  
40  
Dead-Time Input Voltage – V  
V
CC  
– Supply Voltage – V  
Figure 24  
Figure 25  
MAXIMUM CONTINUOUS POWER DISSIPATION  
STANDBY CURRENT  
vs  
vs  
FREE-AIR TEMPERATURE  
FREE-AIR TEMPERATURE  
1200  
1100  
Average Supply Current  
2
16-Pin N Plastic Dip  
V
C
= 6 V, R = 10 kΩ,  
= 330 pF  
CC  
T
T
1000  
900  
Thermal Resistance  
125°C/W  
1.75  
1.5  
800  
700  
600  
500  
400  
300  
200  
Stand-By Current, V  
= 40 V, No Load  
= 3.6 V, No Load  
CC  
1.25  
1
Stand-By Current, V  
16-Pin NS Plastic SO  
CC  
0.75  
0.5  
Thermal Resistance  
250°C/W  
0.25  
0
100  
0
–25  
0
25  
50  
75  
100  
–25  
0
25  
50  
75  
100  
T
A
– Free-Air Temperature  
T
A
– Free-Air Temperature – °C  
Figure 26  
Figure 27  
20  
www.ti.com  
ꢀꢁ ꢂꢃ ꢄꢂ ꢅ  
ꢆꢇꢅ ꢁ ꢈꢇꢁ ꢉ ꢊꢋꢌ ꢍꢆꢀ ꢎꢋꢏ ꢐ ꢆꢇꢁ ꢅꢀ ꢍꢐ ꢑ ꢒꢐ ꢑꢀ ꢓꢐ ꢁ ꢒ ꢍꢓ ꢒꢇ ꢍ ꢀꢉ  
ꢔ
ꢔ
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
APPLICATION INFORMATION  
V
CC  
150 Ω  
220 kΩ  
470 Ω  
L1  
50 kΩ  
33 kΩ  
33 kΩ  
0.47 µF  
330 pF  
R1  
R2  
33 kΩ  
33 kΩ  
R3  
R4  
Step-Up  
Output  
C2  
C1  
500 pF  
V
ref  
16 15 14 13 12 11 10  
TL1451A  
9
1
2
3
4
5
6
7
8
470 Ω  
470 Ω  
R5  
C5  
220 Ω  
1 µF  
L2  
R6  
R7  
500  
pF  
Step-Down  
Output  
C4  
33 kΩ  
470 Ω  
33 kΩ  
NOTE A: Values for R1 through R7, C1 through C4, and L1 and L2 depend upon individual application.  
Figure 28. High-Speed Dual Switching Regulator  
21  
www.ti.com  
PACKAGE OPTION ADDENDUM  
www.ti.com  
24-Jan-2013  
PACKAGING INFORMATION  
Orderable Device  
Status Package Type Package Pins Package Qty  
Eco Plan Lead/Ball Finish  
MSL Peak Temp  
Op Temp (°C)  
Top-Side Markings  
Samples  
Drawing  
(1)  
(2)  
(3)  
(4)  
5962-9958401Q2A  
5962-9958401QEA  
TL1451ACD  
OBSOLETE  
OBSOLETE  
ACTIVE  
LCCC  
CDIP  
SOIC  
FK  
J
20  
16  
16  
TBD  
TBD  
Call TI  
Call TI  
Call TI  
Call TI  
-55 to 125  
-55 to 125  
-20 to 85  
D
40  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU  
Level-1-260C-UNLIM  
TL1451AC  
TL1451ACDBLE  
TL1451ACDBR  
NRND  
SSOP  
SSOP  
DB  
DB  
16  
16  
TBD  
Call TI  
Call TI  
-20 to 85  
-20 to 85  
ACTIVE  
2000  
2000  
40  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU  
Level-1-260C-UNLIM  
T1451A  
TL1451ACDBRG4  
TL1451ACDG4  
TL1451ACDR  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
SSOP  
SOIC  
SOIC  
SOIC  
PDIP  
PDIP  
SO  
DB  
D
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
N / A for Pkg Type  
-20 to 85  
-20 to 85  
-20 to 85  
-20 to 85  
-20 to 85  
-20 to 85  
-20 to 85  
-20 to 85  
-20 to 85  
-20 to 85  
T1451A  
Green (RoHS  
& no Sb/Br)  
TL1451AC  
TL1451AC  
TL1451AC  
TL1451ACN  
TL1451ACN  
TL1451A  
TL1451A  
T1451A  
D
2500  
2500  
25  
Green (RoHS  
& no Sb/Br)  
TL1451ACDRG4  
TL1451ACN  
D
Green (RoHS  
& no Sb/Br)  
N
Pb-Free  
(RoHS)  
TL1451ACNE4  
TL1451ACNSR  
TL1451ACNSRG4  
TL1451ACPW  
N
25  
Pb-Free  
(RoHS)  
N / A for Pkg Type  
NS  
NS  
PW  
PW  
2000  
2000  
90  
Green (RoHS  
& no Sb/Br)  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
SO  
Green (RoHS  
& no Sb/Br)  
TSSOP  
TSSOP  
Green (RoHS  
& no Sb/Br)  
TL1451ACPWG4  
90  
Green (RoHS  
& no Sb/Br)  
T1451A  
TL1451ACPWLE  
TL1451ACPWR  
OBSOLETE  
ACTIVE  
TSSOP  
TSSOP  
PW  
PW  
16  
16  
TBD  
Call TI  
Call TI  
-20 to 85  
-20 to 85  
2000  
2000  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU  
Level-1-260C-UNLIM  
T1451A  
T1451A  
TL1451ACPWRG4  
TL1451AMFKB  
ACTIVE  
TSSOP  
LCCC  
PW  
FK  
16  
20  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU  
Call TI  
Level-1-260C-UNLIM  
Call TI  
-20 to 85  
OBSOLETE  
TBD  
-55 to 125  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
24-Jan-2013  
Orderable Device  
Status Package Type Package Pins Package Qty  
Eco Plan Lead/Ball Finish  
MSL Peak Temp  
Op Temp (°C)  
Top-Side Markings  
Samples  
Drawing  
(1)  
(2)  
(3)  
(4)  
TL1451AMJB  
TL1451AQD  
OBSOLETE  
ACTIVE  
CDIP  
SOIC  
J
16  
16  
TBD  
Call TI  
Call TI  
-55 to 125  
D
40  
40  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU  
Level-1-260C-UNLIM  
-40 to 125 TL1451AQ  
TL1451AQDG4  
TL1451AQDR  
TL1451AQDRG4  
TL1451CDBR  
TL1451CDBRG4  
TL1451CN  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
SOIC  
SOIC  
SOIC  
SSOP  
SSOP  
PDIP  
PDIP  
SO  
D
D
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
N / A for Pkg Type  
1451AQ  
2500  
2500  
2000  
2000  
25  
Green (RoHS  
& no Sb/Br)  
-40 to 125 TL1451AQ  
1451AQ  
D
Green (RoHS  
& no Sb/Br)  
DB  
DB  
N
Green (RoHS  
& no Sb/Br)  
T1451  
Green (RoHS  
& no Sb/Br)  
T1451  
Pb-Free  
(RoHS)  
TL1451CN  
TL1451CN  
TL1451  
TL1451CNE4  
TL1451CNS  
N
25  
Pb-Free  
(RoHS)  
N / A for Pkg Type  
NS  
NS  
NS  
NS  
NS  
NS  
50  
Green (RoHS  
& no Sb/Br)  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
TL1451CNSG4  
TL1451CNSR  
TL1451CNSRG4  
TL1451INSR  
SO  
50  
Green (RoHS  
& no Sb/Br)  
TL1451  
SO  
2000  
2000  
2000  
2000  
Green (RoHS  
& no Sb/Br)  
TL1451  
SO  
Green (RoHS  
& no Sb/Br)  
TL1451  
SO  
Green (RoHS  
& no Sb/Br)  
TL1451I  
TL1451INSRG4  
SO  
Green (RoHS  
& no Sb/Br)  
TL1451I  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
Addendum-Page 2  
PACKAGE OPTION ADDENDUM  
www.ti.com  
24-Jan-2013  
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability  
information and additional product content details.  
TBD: The Pb-Free/Green conversion plan has not been defined.  
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that  
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.  
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between  
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.  
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight  
in homogeneous material)  
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.  
(4) Only one of markings shown within the brackets will appear on the physical device.  
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information  
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and  
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.  
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.  
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.  
OTHER QUALIFIED VERSIONS OF TL1451A, TL1451AM :  
Catalog: TL1451A  
•
Automotive: TL1451A-Q1, TL1451A-Q1  
•
Enhanced Product: TL1451A-EP, TL1451A-EP  
•
Military: TL1451AM  
•
NOTE: Qualified Version Definitions:  
Catalog - TI's standard catalog product  
•
Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects  
•
Enhanced Product - Supports Defense, Aerospace and Medical Applications  
•
Addendum-Page 3  
PACKAGE OPTION ADDENDUM  
www.ti.com  
24-Jan-2013  
Military - QML certified for Military and Defense Applications  
•
Addendum-Page 4  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
14-Mar-2013  
TAPE AND REEL INFORMATION  
*All dimensions are nominal  
Device  
Package Package Pins  
Type Drawing  
SPQ  
Reel  
Reel  
A0  
B0  
K0  
P1  
W
Pin1  
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant  
(mm) W1 (mm)  
TL1451ACDBR  
TL1451ACDR  
TL1451ACDR  
TL1451ACNSR  
TL1451ACPWR  
TL1451AQDR  
TL1451AQDRG4  
TL1451CDBR  
TL1451CNSR  
TL1451INSR  
SSOP  
SOIC  
SOIC  
SO  
DB  
D
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
2000  
2500  
2500  
2000  
2000  
2500  
2500  
2000  
2000  
2000  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
330.0  
16.4  
16.4  
16.4  
16.4  
12.4  
16.4  
16.4  
16.4  
16.4  
16.4  
8.2  
6.5  
6.5  
8.2  
6.9  
6.5  
6.5  
8.2  
8.2  
8.2  
6.6  
10.3  
10.3  
10.5  
5.6  
2.5  
2.1  
2.1  
2.5  
1.6  
2.1  
2.1  
2.5  
2.5  
2.5  
12.0  
8.0  
16.0  
16.0  
16.0  
16.0  
12.0  
16.0  
16.0  
16.0  
16.0  
16.0  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
D
8.0  
NS  
PW  
D
12.0  
8.0  
TSSOP  
SOIC  
SOIC  
SSOP  
SO  
10.3  
10.3  
6.6  
8.0  
D
8.0  
DB  
NS  
NS  
12.0  
12.0  
12.0  
10.5  
10.5  
SO  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
14-Mar-2013  
*All dimensions are nominal  
Device  
Package Type Package Drawing Pins  
SPQ  
Length (mm) Width (mm) Height (mm)  
TL1451ACDBR  
TL1451ACDR  
TL1451ACDR  
TL1451ACNSR  
TL1451ACPWR  
TL1451AQDR  
TL1451AQDRG4  
TL1451CDBR  
TL1451CNSR  
TL1451INSR  
SSOP  
SOIC  
SOIC  
SO  
DB  
D
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
2000  
2500  
2500  
2000  
2000  
2500  
2500  
2000  
2000  
2000  
367.0  
333.2  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
345.9  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
38.0  
28.6  
38.0  
38.0  
35.0  
38.0  
38.0  
38.0  
38.0  
38.0  
D
NS  
PW  
D
TSSOP  
SOIC  
SOIC  
SSOP  
SO  
D
DB  
NS  
NS  
SO  
Pack Materials-Page 2  
MECHANICAL DATA  
MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001  
DB (R-PDSO-G**)  
PLASTIC SMALL-OUTLINE  
28 PINS SHOWN  
0,38  
0,22  
0,65  
28  
M
0,15  
15  
0,25  
0,09  
5,60  
5,00  
8,20  
7,40  
Gage Plane  
1
14  
0,25  
A
0°–ā8°  
0,95  
0,55  
Seating Plane  
0,10  
2,00 MAX  
0,05 MIN  
PINS **  
14  
16  
20  
24  
28  
30  
38  
DIM  
6,50  
5,90  
6,50  
5,90  
7,50  
8,50  
7,90  
10,50  
9,90  
10,50 12,90  
A MAX  
A MIN  
6,90  
9,90  
12,30  
4040065 /E 12/01  
NOTES: A. All linear dimensions are in millimeters.  
B. This drawing is subject to change without notice.  
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.  
D. Falls within JEDEC MO-150  
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