HA16129AFPJ Datasheet, PDF (4/23 Pages) List of Unclassifed Manufacturers – Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp.

HA16129AFPJ
Pin Function
Related
Function
WDT.
Pin
No.
1
Symbol
P-RUN
2
Rf
3
Cf
t_RH, t_RL, t_OFF
4
R_R
5
C_R
t_ON
6
R_T
tr, t_RES
7
C_RES
–
Vout
Output
Power
supply
Short
detection
Vout
NMI
8
GND
9
Voadj
10
OUTE
11
V_CC
12
CS
13
CONT
14
V_OUT
15
NMIsns
Output
Output
STBY
Output
16
NMIadj
17
NMI
18
RES
19
STBYadj
20
STBY
Function
Watchdog timer pulse input. The auto-reset function is controlled by the duty
cycle or frequency of this input pulse signal.
The resistor connected to this pin determines the current that flows in the Cf
pin capacitor. Use the resistor value from 100 kΩ to 500 kΩ
The current determined by the Rf pin charges the Cf capacitor and the
potential on this pin determines the watchdog timer frequency band.
The resistor connected to this pin determines the current that flows in the C_R
pin capacitor. Use the resistor value from 100 kΩ to 500 kΩ
The current determined by the R_R pin charges the capacitor C_R and the
potential on this pin controls the RES function (toff, t_RH, and t_RL).
The resistor R_T, which determines only the time t_ON for the RES function is
connected to this pin. This resistor determines the current that charges the
capacitor C_R for the time t_ON. Use the resistor value from 100 kΩ to 500 kΩ
The current determined by the Rf pin charges the capacitor C_RES, and the
RES delay times (Tr and T_RES) are determined by the potential of this
capacitor.
Ground
Insert the resistor Roadj if fine adjustment of the regulator output voltage
Vout is required. Leave this pin open if Vout does not need to be changed.
Output for the OUTE function
Power supply
Connect the overcurrent detection resistor between the CS pin and the V_CC
pin. If this function is not used, short this pin to V_CC. Also, connect this pin to
the emitter of the external transistor.
Connect this pin to the base of the external transistor.
Provides the regulator output voltage and the IC internal power supply.
Connect this pin to the collector of the external transistor.
This pin senses the NMI detection voltage. If V_CC is to be detected, connect
this pin to the V_CC pin (however, note that an external resistor is required),
and if Vout is to be detected, connect this pin to the V_OUT pin.
Insert a resistor if fine adjustment of the NMI detection voltage is required.
Leave this pin open if fine adjustment is not required.
NMI output
RES output
Insert a resistor if fine adjustment of the STBY detection voltage is required.
Leave this pin open if fine adjustment is not required.
STBY output
Rev.1.00 Jun 15, 2005 page 4 of 22