HA16129 Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics
Número de pieza
componentes Descripción
Lista de partido
HA16129 Datasheet PDF : 24 Pages
| |||
HA16129FPJ
Calculation Formulas (cont)
Item
VSTBY
VNMI
(Vout
detection)
VNMI
(VCC
detection)
Formula
( 67.6
VSTBY = 1.48 ×
+1
29.5 + 36.2 // R1
Notes
The voltage at which the STBY signal is output when
Vout falls. The STBY detection voltage can be adjusted
by connecting a resistor between the STBYadj pin and
ground (R3). However, the STBY recovery voltage
cannot be adjusted.
Vout
STBYadj
Vout VSTBY
STBY
VSTBY'
R1
STBY
( VNMI = 1.2 ×
1
+
R1
R2
//
//
73
25
R1, R2; kΩ
t
The voltage at which the NMI signal is output when
Vout falls. (When NMIsns is connected to Vout.)
The NMI detection voltage can be adjusted by
connecting resistors between the NMIadj pin and Vout
(R1), and between the NMIadj pin and ground (R2).
Vout
NMIsns
R2
NMIadj
R1
NMI
Vout
VNMI
NMI
VNMI'
( VNMI = 4.62 ×
R1
R2 // 97.1 + 1
Recovery voltage
( VNMI = 4.68 ×
R1
R2 // 45.5 + 1
R1, R2; kΩ
GND
t
The voltage at which the NMI signal is output when VCC
falls. (When NMIsns is connected to VCC.)
The NMI detection voltage can be adjusted by
connecting resistors between the NMIsns pin and V CC
(R1), and between the NMIsns pin and ground (R2).
OUTE
CR × RR > 19.3 × Cf × Rf
R1
NMIsns
VCC CS
R2
Vout
NMI VCC
VNMI
VNMI'
NMI
GND
t
If the OUTE function is used, the relationship shown at
the left must be fulfilled to assure that pulses are not
incorrectly generated in this output when a
microprocessor runaway state is detected.
9
Share Link: 