TL7770-5, TL7770-12
DUAL POWER-SUPPLY SUPERVISORS
SLVS019F – OCTOBER 1987 – REVISED JULY 1999
electrical characteristics over recommended operating conditions (unless otherwise noted)
supply supervisor section
PARAMETER
TEST
CONDITIONS†
IOH = –15 mA
IOH = –20 mA
IOL = 15 mA
4.46
TA = MIN to MAX
10.68
1.47
15
TA = MIN to MAX
36
5
TA = MIN to MAX
VI = 5.5 V or 0.4 V
VI = 2.4 V
VO = 18 V
VO = 0
Duration = 1 ms
2.48
0.5
2.68
–10
2
50
–50
V
µA
µA
µA
mA
mV
TL7770-5C
TL7770-12C
TL7770-5I
MIN TYP‡
MAX
VCC–1.5
VCC–1.5
0.4
4.64
11.12
1.53
V
UNIT
VOH
VOL
High level output voltage
High-level
Low-level output voltage
Undervoltage input threshold
at VSU (negative-going)
RESET
SCR DRIVE
RESET
TL7770-5 (5-V sense, 1VSU)
TL7770-12 (12-V sense, 1VSU)
TL7770-5, TL7770-12
(programmable sense, 2VSU)
TL7770-5 (5-V sense, 1VSU)
V
V
VIT
IT–
Vhys
Hysteresis at VSU
(VIT+ – VIT–)
Overvoltage threshold at VSO
Input current
High-level output current
Low-level output current
TL7770-12 (12-V sense, 1VSU)
TL7770-5, TL7770-12
(programmable sense, 2VSU)
TL7770-5, TL7770-12 (VSO)
RESIN
VSO
RESET
RESET
VT
II
IOH
IOL
IOH
Peak output current
SCR DRIVE
250
† For conditions shown as MIN or MAX, use the appropriate value specified in the recommended operating conditions.
‡ Typical values are at VCC = 5 V, TA = 25°C.
total device
PARAMETER
TEST CONDITIONS†
TL7770-5C
TL7770-12C
TL7770-5I
MIN TYP‡
MAX
0.8
TA = 25°C
TA = MIN to MAX
1
5
mA
6.5
UNIT
Vres§
ICC
Power-up reset voltage
Supply current
VCC = VSU
1VSU = 18 V, 2VSU = 2 V,
1RESIN and 2RESIN at VCC,
1VSO and 2VSO at 0 V
V
† For conditions shown as MIN or MAX, use the appropriate value specified in the recommended operating conditions.
‡ Typical values are at VCC = 5 V, TA = 25°C.
§ This is the lowest voltage at which RESET becomes active.
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
5
TI [ TEXAS INSTRUMENTS ]
