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TL7759Y Scheda tecnica(PDF) 2 Page - Texas Instruments

Il numero della parte TL7759Y
Spiegazioni elettronici  SUPPLY-VOLTAGE SUPERVISORS
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TL7759
SUPPLY-VOLTAGE SUPERVISORS
SLVS042D – JANUARY 1991 – REVISED JULY 1999
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC (see Note 1)
20 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off-state output voltage range: RESET voltage
–0.3 V to 20 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RESET voltage
–0.3 V to 20 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low-level output current, IOL (RESET)
30 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High-level output current, IOH (RESET)
–10 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Notes 2 and 3): D package
97
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
P package
127
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
149
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† 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.
NOTES:
1. All voltage values are with respect to the network ground terminal.
2. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can impact reliability.
3. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
MIN
MAX
UNIT
Supply voltage, VCC
1
7
V
Output voltage VO (see Note 4)
Transistor off RESET voltage
15
V
Output voltage, VO (see Note 4)
Transistor off RESET voltage
0
V
Low-level output current, IOL
RESET
24
mA
High-level output current, IOH
RESET
–8
mA
Operating free-air temperature, TA
TL7759C
0
70
°C
NOTE 4: RESET output must not be pulled down below GND potential.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TL7759C
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP‡
MAX
UNIT
VOL
Low-level output voltage
RESET
VCC =4 3V
IOL = 24 mA
0.4
0.8
V
VOH
High-level output voltage
RESET
VCC = 4.3 V
IOH = –8 mA
VCC–1
V
VIT
Input threshold voltage
TA = 25°C
4.43
4.55
4.67
V
VIT–
g
(negative-going VCC)
TA = 0°C to 70°C
4.4
4.7
V
V
§
Power up reset voltage
RL =22kΩ
TA = 25°C
0.8
1
V
Vres§
Power-up reset voltage
RL = 2.2 kΩ
TA = 0°C to 70°C
1.2
V
V
Hysteresis at VCC input
TA = 25°C
40
50
60
mV
Vhys¶
Hysteresis at VCC input
TA = 0°C to 70°C
30
70
mV
IOH
High-level output current
RESET
VCC = 7 V See Figure 1
VOH = 15 V
1
µA
IOL
Low-level output current
RESET
VCC = 7 V, See Figure 1
VOL = 0 V
–1
µA
ICC
Supply current
No load
VCC = 4.3 V
1400
2000
µA
ICC
Supply current
No load
VCC = 5.5 V
40
µA
‡ Typical values are at TA = 25°C.
§ This is the lowest voltage at which RESET becomes active, VCC slew rate ≤ 5 V/µs.
¶ This is the difference between positive-going input threshold voltage, VIT+, and negative-going input threshold voltage, VIT–.


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