RENESAS HA16129AFPJ

HA16129AFPJ
Single Watchdog Timer
REJ03F0143-0100
(Previous: ADE-204-067)
Rev.1.00
Jun 15, 2005
Description
The HA16129AFPJ is a watchdog timer IC that monitors a microprocessor for runaway. In addition to the watchdog
timer function, the HA16129AFPJ also provides a function for supplying a high-precision stabilized power supply to
the microprocessor, a power on reset function, a power supply voltage monitoring function, and a fail-safe function that
masks the microprocessor outputs if a runaway is detected.
Functions
• Watchdog timer (WDT) function
Monitors the P-RUN signal output by the microprocessor, and issues an auto-reset (RES) signal if a microprocessor
runaway is detected.
• Stabilized power supply
Provides power to the microprocessor.
• Power on and clock off functions
The power on function outputs a low level signal to the microprocessor for a fixed period when power is first
applied.
The clock off function outputs a RES signal to the microprocessor a fixed period after a runaway occurs.
• Power supply monitoring function
When the reference voltage (Vout) falls and becomes lower than the NMI detection voltage (4.63 V, Typ) or the
STBY detection voltage (3.0 V Typ), this function outputs either an NMI signal or an STBY signal, respectively.
Note that NMI detection can be set to monitor either VCC or Vout.
• OUTE function*1 (fail-safe function)
Outputs a signal used to mask microprocessor outputs when a microprocessor runaway has been detected.
• RES delay function
Sets the delay between the time the NMI signal is output and the time the RES signal is output.
• Protection functions
• The HA16129AFPJ incorporates both Vout overvoltage prevention and short detection functions.
Note: 1. OUTE function: OUTE is an abbreviation for output enable.
Features
•
•
•
•
•
High-precision output voltage: 5.0 V ± 1.5%
The WDT supports both frequency and duty detection schemes.
High-precision power supply monitoring function: 4.625 V ± 0.125 V
Built-in OUTE function
All functions can be adjusted with external resistors and/or capacitors.
Rev.1.00 Jun 15, 2005 page 1 of 22
HA16129AFPJ
Pin Arrangement
P-RUN
1
20
STBY
Rf
2
19
STBYadj
Cf
3
18
RES
RR
4
17
NMI
CR
5
16
NMIadj
RT
6
15
NMIsns
CRES
7
14
VOUT
GND
8
13
CONT
Voadj
9
12
CS
OUTE
10
11
VCC
(Top view)
Rev.1.00 Jun 15, 2005 page 2 of 22
HA16129AFPJ
Block Diagram
VCC
CONT
12
13
14
VOUT
3.3k
71k
Voadj
−
+
31.2k
STBYadj
19
CS
11
To microprocessor
(or other device)
power supply
connections
9
1.24V
−
+
1.5V
36.8k
STBY detection
block
To Vout
15
NMIsns
Overvoltage
detection
block
Regulator block
STBY
20
3.3k
2k
17
80k
NMIadj
16
Short
detection
block
−
+
70k
NMI
S STBY
1.18V
3.3k
Q R RES
10
OUTE
S Q
25k
NMI detection
block
RT
−
+
tON detection
block
R
OUTE
block
6
5
CR
Q S
19k
IR
R NMI
33k
If*16
If/6
3.3k
18
8.4k +
−
−
−
+
RES
20k
IR*4/3
Cf
−
+
WDT block
3
RES block
1
CRES
+
−
P-RUN
IR
If
2V
8
GND
Delay circuit block
4
RR
2
Rf
Note: The current, voltage, and resistor values listed in the diagram are reference values.
: Connect to Vout
Rev.1.00 Jun 15, 2005 page 3 of 22
7
HA16129AFPJ
Pin Function
Related
Function
WDT.
Pin
No.
1
Symbol
P-RUN
2
Rf
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
3
Cf
The current determined by the Rf pin charges the Cf capacitor and the
potential on this pin determines the watchdog timer frequency band.
4
RR
The resistor connected to this pin determines the current that flows in the CR
pin capacitor. Use the resistor value from 100 kΩ to 500 kΩ
5
CR
The current determined by the RR pin charges the capacitor CR and the
potential on this pin controls the RES function (toff, tRH, and tRL).
tON
6
RT
The resistor RT, which determines only the time tON for the RES function is
connected to this pin. This resistor determines the current that charges the
capacitor CR for the time tON. Use the resistor value from 100 kΩ to 500 kΩ
tr, tRES
7
CRES
–
Vout
8
9
GND
Voadj
The current determined by the Rf pin charges the capacitor CRES, and the
RES delay times (Tr and TRES) are determined by the potential of this
capacitor.
Ground
Output
10
OUTE
Power
supply
11
VCC
Short
detection
12
CS
Vout
13
14
CONT
VOUT
15
NMIsns
This pin senses the NMI detection voltage. If VCC is to be detected, connect
this pin to the VCC pin (however, note that an external resistor is required),
and if Vout is to be detected, connect this pin to the VOUT pin.
16
NMIadj
Output
Output
STBY
17
18
19
NMI
RES
STBYadj
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
Output
20
STBY
tRH, tRL, tOFF
NMI
Rev.1.00 Jun 15, 2005 page 4 of 22
Function
Watchdog timer pulse input. The auto-reset function is controlled by the duty
cycle or frequency of this input pulse signal.
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 VCC
pin. If this function is not used, short this pin to VCC. 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.
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
HA16129AFPJ
Functional Description
This section describes the functions provided by the HA16129FPJ. See the section on formulas for details on
adjustment methods.
Regulator Block
• Vout Voltage
This IC provides a stabilized 5 V power supply by controlling the base current of an external transistor. The largest
current (the maximum CONT pin current) that can be drawn by the base of this external transistor is 20 mA. Also
note that the Vout output is also used for the power supply for this IC’s internal circuits.
Short Detection Block
When a current detection resistor (RCS) is connected between the VCC pin and the CS pin, and the voltage between these
pins exceeds the VCS voltage (700 mV Typ), the CONT pin function turns off and the output voltage supply is stopped.
Output Voltage (Vout) Adjustment
The output voltage can be adjusted by connecting an external resistor at the output voltage adjustment pin (Voadj).
However, if for some reason the voltage on this Vout line increases and exceeds the voltage adjustment range (7 V
Max), the CONT pin function turns off and the output voltage supply is stopped.
Refer to the timing charts in conjunction with the following items.
LVI (Low Voltage Inhibit)
• NMI Detection Voltage
This function monitors for drops in the power-supply voltage. This function can be set up to monitor either VCC or
Vout. When Vout is monitored, a low level is output from the NMI pin if that voltage falls under the detection
voltage (4.63 V Typ). Then, when the power-supply voltage that fell rises again, the NMI pin will output a high
level. Note that this function has a fixed hysteresis of 50 mV (Typ). The monitored power supply is selected by
connecting the NMIsns pin either to the VCC pin or to the VOUT pin. When detecting VCC, an external adjustment
resistor is required.)
The detection voltage can also be adjusted with the NMIadj pin.
• STBY Detection Voltage
This function monitors for drops in the Vout voltage. It monitors the Vout voltage, and outputs a low level from the
STBY pin if that voltage drops below the detection voltage (3.0 V Typ). Then, when the power-supply voltage that
fell rises again, the STBY pin will output a high level. Note that this function has a fixed hysteresis of 1.35 V (Typ).
The detection voltage can also be adjusted with the STBYadj pin.
Function Start Voltage
This is the minimum required Vout voltage for the RES, NMI, STBY, and OUTE output pin functions to start operating.
It is stipulated as the voltage that Vout must reach after power is first applied for these pins to output a low level.
Hysteresis
This is the difference between the LVI function detection voltage when the power-supply voltage drops, and the clear
(reset) voltage when the power-supply voltage rises.
(VHYSN = VNMI' – VNMI; VHYSS = VSTBY' – VSTBY)
Rev.1.00 Jun 15, 2005 page 5 of 22
HA16129AFPJ
OUTE Function
When a microprocessor is in the runaway state, its outputs are undefined, and thus it is possible that the outputs may be
driven by incorrect signals. This function is used to mask such incorrect microprocessor outputs. When the WDT
function recognizes normal operation (when the RES output is high), the OUTE output will be held high. When the
WDT function recognizes an abnormal state and an auto-reset pulse is output from the RES pin, the OUTE output will
be held low. Thus microprocessor outputs during microprocessor runaway can be masked by taking the AND of those
outputs and this signal using external AND gates.
The OUTE output will go high when the CR pin voltage exceeds VthHcr2, and will go low when that voltage falls
below VthLcr.
There are limitation that apply when the OUTE function is used. Refer to the calculation formulas item for details.
RES Function
• tRH
This period is the length of the high-level output period of the RES pulse when the P-RUN signal from the
microprocessor stops. This is the time required for the CR potential to reach VthLcr from VthHcr1.
• tRL
This period is the length of the low-level output period of the RES pulse when the P-RUN signal from the
microprocessor stops. This is the time required for the CR potential to reach VthHcr1 from VthLcr.
• tOFF
This is the time from the point the P-RUN signal from the microprocessor stops to the point a low level is output
from the RES pin. During normal microprocessor operation, the potential on the CR pin will be about Vout – 0.2 V
(although this value may change with the P-RUN signal input conditions, so it should be verified in the actual
application circuit) and tOFF is the time for the CR pin potential to reach VthLcr from that potential.
• tON
tON is the time from the point the NMI output goes high when power is first applied to the point the RES output goes
low. tON is the time for the potential of the CR pin to reach VthHcr1 from 0 V.
• tr
The time tr is the fixed delay time between the point the NMI output goes from low to high after the power-supply
voltage comes up to the point RES goes from low to high. The time tr is the time for the CRES pin potential to fall
from the high voltage (about 1.9 V) to Vthcres.
• tRES
The time tRES is the fixed delay time between the point the NMI output goes from high to low when the powersupply voltage falls to the point RES goes from high to low. The time tRES is the time for the CRES pin potential to
rise from 0 V to Vthcres.
WDT Function
This function determines whether the microprocessor is operating normally or has entered a runaway state by
monitoring the duty or frequency of the P-RUN signal. When this function recognizes a runaway state, it outputs a
reset pulse from the RES pin and sets the OUTE pin to low from high. It holds the RES and OUTE pins fixed at high as
long as it recognizes normal microprocessor operation.
In this function, the potential of the Cf capacitor is controlled by the P-RUN signal. This Cf pin potential charges the
capacitor CR that controls the reset pulse to be between VthLcf and VthHcf. The judgment as to whether or not the
microprocessor is operating normally, is determined by the balance between the charge and discharge voltage on the
capacitor CR at this time.
Rev.1.00 Jun 15, 2005 page 6 of 22
HA16129AFPJ
Calculation Formulas
Item
Reference
voltage
Formula
(
Vout = 1.225 1 +
37 // R1
12 // R2
R1, R2; kΩ
Notes
(
While the Vout voltage will be 5 V ±1.5% when the Voadj pin
is open, the circuit shown here should be used to change the
Vout voltage externally.
VCC
CS
Vout
Voadj
R1
R2
Short
detection
voltage
VCS (700 mV Typ) < IL ⋅ RCS
When this function operates, the base current to the external
transistor connected to the CS pin stops and the Vout output
is lowered.
RCS
VCC
OVP
–
tRH, tRL
tRH = 3.3 × CR ⋅ RR
tRL = 1.1 × CR ⋅ RR
IL
CS
Vout
This function prevents the microprocessor from being
damaged if the Vout voltage is inadvertently increased to too
high a level. The OVP detection voltage is fixed.
These determine the reset pulse frequency and duty.
RES
tRL
tRH
tON
tON = 1.1 × CR ⋅ RT
Sets the time from the rise of the NMI signal to the point the
RES output is cleared.
NMI
RES
tOFF
tOFF = 6.5 × CR ⋅ RR
tON
Sets the time from the point the P-RUN pulse stops to the
point a reset pulse is output.
P-RUN
RES
Rev.1.00 Jun 15, 2005 page 7 of 22
toff
HA16129AFPJ
Calculation Formulas (cont.)
Item
VSTBY
Formula
VSTBY = 1.48 ×
Notes
+1
( 29.5 +67.6
36.2 // R1 (
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
VSTBY'
Vout VSTBY
STBY
STBYadj
STBY
R1
t
VNMI
(Vout detection)
(
VNMI = 1.2 × 1 +
R1 // 73
R2 // 25
(
R1, R2; kΩ
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
NMI
Vout
R2
NMIadj
R1
VNMI'
VNMI
NMI
t
GND
VNMI
(VCC detection)
VNMI = 4.62 ×
+ 1(
( R2 R1
// 97.1
Recovery voltage
VNMI = 4.68 ×
+ 1(
( R2 R1
// 45.5
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 VCC (R1), and
between the NMIsns pin and ground (R2).
R1, R2; kΩ
R1
VCC CS
NMIsns
Vout
NMI
R2
VNMI'
VCC
VNMI
NMI
GND
OUTE
CR × RR > 19.3 × Cf × Rf
Rev.1.00 Jun 15, 2005 page 8 of 22
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.
HA16129AFPJ
Calculation Formulas (cont.)
Formula
0.31 × (Du − 24)
fLine1 =
Cf ⋅ Rf
fLine2 = 24% (fixed)
0.024
fLine3 =
Cf ⋅ Rf
fLine4 = 99%
The relationship between
fLine1 and fLine3
fLine1 = fLine3 × 12.9 (Du − 24)
Du: The P-RUN signal duty cycle
tH
tL
Notes
The WDT function judges whether the P-RUN pulse signal is
normal or not. If the WDT function judges the P-RUN pulse
signal to be abnormal, it outputs a reset signal. The normal
range is the area enclosed by fLine1 to fLine4 in the figure.
fLine1
Frequency
Item
WDT.
Normal
operation
area
fLine2
fLine3
t
Du = H × 100
tH + tL
Duty
Rev.1.00 Jun 15, 2005 page 9 of 22
fLine4
HA16129AFPJ
Timing Charts
Whole system timing chart
VCC
VOUT
VNMI
VSTBY'
VNMI'
VSTBY
STBY
NMI
RES
tON
tRL
tRES
tRH
OUTE
tOFF
P-RUN
Rev.1.00 Jun 15, 2005 page 10 of 22
Microprocessor
runaway
tRES
tr
HA16129AFPJ
WDT. timing chart
VOUT
(5 V)
Normal
operation
High-frequency
runaway
Low-frequency runaway
P-RUN
VthHcf
Cf
VthLcf
VthHcr2
CR VthHcr1
VthLcr
tOFF
RES
tRL
tRH
OUTE
LVI timing chart
VCC
VNMI'
VSTBY'
VOUT
VNMI
VSTBY
STBY
NMI
CR
RES
&
OUTE
tr
tON
CRES
Rev.1.00 Jun 15, 2005 page 11 of 22
tRES
Vthcres
HA16129AFPJ
Absolute Maximum Ratings
(Ta = 25°C)
Item
Power supply voltage
CS pin voltage
CONT pin current
CONT pin voltage
Vout pin voltage
P-RUN pin voltage
NMIsns pin voltage
NMI pin voltage
STBY pin voltage
RES pin voltage
OUTE pin voltage
Power dissipation*1
Operating temperature
Storage temperature
Rating
40
VCC
20
VCC
12
Vout
VCC
Vout
Vout
Vout
Vout
400
–40 to +85
–50 to +125
VCC
VCS
Icont
Vcont
Vout
VPRUN
VNMIsns
VNMI
VSTBY
VRES
VOUTE
PT
Topr
Tstg
Unit
V
V
mA
V
V
V
V
V
V
V
V
mW
°C
°C
1. This is the allowable value when mounted on a 40 × 40 × 1.6 mm glass-epoxy printed circuit board with a
mounting density of 10% at ambient temperatures up to Ta = 77°C. This value must be derated by 8.3
mW/°C above that temperature.
Power Dissipation PT (mW)
Note:
Symbol
77°C
400
300
200
100
0
−40
85°C
−20
0
20
40
60
80
100
Ambient Temperature Ta (°C)
Rev.1.00 Jun 15, 2005 page 12 of 22
120
140
HA16129AFPJ
Electrical Characteristics
(Ta = 25°C, VCC = 12V, Vout = 5.0V, Rf = RR = 180kΩ, Cf = 3300pF, CR = 0.1µF, RT = 390kΩ, CRES = 1500pF,
RCS = 0.2Ω)
Item
Power supply current
Short detection voltage
Regulator
block
Symbol
ICC
VCS
Min
–
400
Typ
10
700
Max
15
900
Unit
mA
mV
Output voltage
Vout
4.925
5.00
5.075
V
VCC = 12V,
Icont = 5mA
Input voltage stabilization
Volin
–30
–
30
mV
VCC =
6 to 17.5V,
Icont = 10mA
Load current stabilization
Voload
–30
–
30
mV
Icont =
0.1 to 15mA
Ripple exclusion ratio
RREJ
(45)
75
–
dB
Vi = 0.5Vrms,
fi = 1kHz
Output voltage temperature
coefficient
| δVout/δT |
–
40
(200)
ppm/°C
Output voltage adjustment
range
Input high-level voltage
Input low-level voltage
Input high-level current
VoMAX
–
–
7.0
V
–
–
300
0
Vout
–
0.7
Vout
–
0.7
–
0.8
500
5
Vout + 0.2
0.4
1.4
Vout + 0.2
0.4
1.4
V
V
µA
µA
V
V
V
V
V
V
2.0
–
–
–5
Input low-level current
IiL
High level
VOHN
Vout − 0.2
NMI output
block
Low level
VOLN
–
–
Function start voltage
VSTN
High level
VOHS
Vout – 0.2
STBY
output block Low level
VOLS
–
–
Function start voltage
VSTS
Note: Values in parentheses are design reference values.
P-RUN
input block
Rev.1.00 Jun 15, 2005 page 13 of 22
ViH
ViL
IiH
Test Conditions
VCS = (VCC pin
voltage –
CS pin voltage)
Icont = 5mA
ViH = 5.0V
ViL = 0.0V
IOHN = 0mA
IOLN = 2.0mA
IOHS = 0mA
IOLS = 2.0mA
HA16129AFPJ
Electrical Characteristics (cont.)
(Ta = 25°C, VCC = 12V, Vout = 5.0V, Rf = RR = 180kΩ, Cf = 3300pF, CR = 0.1µF, RT = 390kΩ, CRES = 1500pF,
RCS = 0.2Ω)
RES
output
block
Item
High level
Low level
Function start voltage
VOHR
VOLR
VSTR
OUTE
output
block
High level
Low level
Function start voltage
VOHE
VOLE
VSTE
RES
function
Power on time
Clock off time
Reset pulse high time
ton
toff
tRH
Reset pulse low time
LVI
function
NMI
function
(Vout
detection)
tRL
VNMI1
Typ
Vout
–
0.7
Vout
–
0.7
40
130
60
20
4.63
Max
Vout + 0.2
0.4
1.4
Vout + 0.2
0.4
1.4
60
190
90
30
4.75
VHYSN1
–
50
100
Temperature
coefficient
| δVNMI/δT |
–
100
(400)
NMI
function
(VCC
detection)
Detection
voltage 2
Hysteresis 2
VNMI2
5.0
5.4
5.7
V
R1 = 13kΩ,
R2 = 390kΩ
VHYSN2
0.5
0.8
1.3
V
R1 = 13kΩ,
R2 = 390kΩ
STBY
function
Detection
voltage
Hysteresis
VSTBY
2.70
3.00
3.30
V
VHYSS
| δVSTBY/δT |
1.20
–
1.35
100
1.50
(400)
V
ppm/°C
tRES
(100)
200
(300)
µs
Recovery time
tr
(100)
Values in parentheses are design reference values.
200
(300)
µs
Temperature
coefficient
RES
delay time
Note:
Disable time
Rev.1.00 Jun 15, 2005 page 14 of 22
Unit
V
V
V
V
V
V
ms
ms
ms
ms
Test
Conditions
IOHR = 0mA
IOLR = 2.0mA
Min
Vout – 0.2
–
–
Vout − 0.2
–
–
25
80
40
15
4.5
Detection
voltage 1
Hysteresis 1
Symbol
IOHE = 0mA
IOLE = 2.0mA
V
mV
ppm/°C
HA16129AFPJ
Test Circuits
• Vout test circuit
Units: Resistors Ω
Capacitors F
Icont
A
VCC
Vout
VCC
STBY
CS
CONT
Vout
STBYadj
NMI
HA16129AFPJ
RES
NMIsns
Voadj
P-RUN
Rf
f = 1kHz
duty = 50%
180k
NMIadj
Cf
RR
3300p 180k
CR
0.1µ
RT
390k
GND
CRES
1500p
Here, the Vout voltage is for a VCC
of 12V, and Icont is monitored as
Vout is varied.
• ICC test circuit
IIN
Iout
VCC
Vout
VCC
STBY
CS
CONT
Vout
STBYadj
NMI
HA16129AFPJ
RES
*ICC = IIN + Iout
NMIsns
Voadj
f = 1kHz
duty = 50%
P-RUN
Rf
180k
NMIadj
Cf
RR
3300p 180k
CR
0.1µ
RT
390k
GND
CRES
1500p
• Test circuit for other parameters
VCC
VCC
STBY
CS
CONT
Vout
STBYadj
NMI
HA16129AFPJ
V
Frequency
counter
RES
f = 1kHz
duty = 50%
180k
NMIadj
Cf
3300p 180k
Rev.1.00 Jun 15, 2005 page 15 of 22
RR
CR
0.1µ
RT
390k
R1
13k
NMI VCC
detection
NMIsns
Voadj
P-RUN
Rf
NMI Vout
detection
GND
CRES
1500p
R2
390k
HA16129AFPJ
System Circuit Examples
• Example of a basic system
STBY 20
Microprocessor
PORT
STBY
1
P-RUN
2
Rf
STBYadj 19
3
Cf
RES 18
RES
4
RR
NMI 17
NMI
5
CR
NMIadj 16
VCC
6
RT
7
CRES
8
GND
9
Voadj
CS 12
10 OUTE
VCC 11
180k
180k
390k
1500p
PORT
NMIsns 15
(5 V)
VOUT 14
+
To other power supplies
200µ
CONT 13
IGN
SW.
0.2
+
Load
0.1µ
HA16129AFPJ
3300p
BATTERY
DS
PORT
STBY 20
STBY
1
P-RUN
2
Rf
STBYadj 19
3
Cf
RES 18
RES
4
RR
NMI 17
NMI
5
CR
6
RT
7
CRES
8
GND
180k
0.1µ
390k
1500p
NMIsns 15
CONT 13
CS 12
10 OUTE
VCC 11
To other power supplies
R2
VOUT 14
Voadj
9
VCC PORT
NMIadj 16
Q1
+
200µ
(5V)
R1
R3
Q2
0.2
IGN R5
SW.
Primary detection
+
DS
D1
R4
Load
180k
HA16129AFPJ
3300p
Microprocessor
• Example of a system using a backup circuit and a primary voltage monitoring circuit
BATTERY
DZ
Backup circuit
DS: Schottky diode
DZ: Zener diode
Rev.1.00 Jun 15, 2005 page 16 of 22
HA16129AFPJ
Operating Waveforms
Frequency vs. Duty Characteristics
100k
RES and OUTE
runaway detection
lines
Ta = 25°C, CR = 0.1µF, RR = 180kΩ,
RT = 390kΩ, Rf = 180kΩ, Cf = 3300pF
CRES = 1500pF
Runaway area
OUTE normal
recovery line
Frequency (Hz)
10k
Normal area
1k
RES
OUTE
Monitor
Pulse generator
VOH: 5V
VOL: 0V
100
10
20
30
40
50
60
70
80
90
100
Duty (%)
Power On Time (tON) vs. RT Resistance Characteristics
1000
500
Ta = 25°C, VCC = 0 → 12V, Rf = 180kΩ,
Cf = 3300pF, CRES = 1500pF
Power On Time (tON) (ms)
CR = 0.47µF
100
50
CR = 0.1µF
CR = 0.033µF
10
5
1
10
50
100
RT Resistance (kΩ)
Rev.1.00 Jun 15, 2005 page 17 of 22
500
1000
HA16129AFPJ
Clock Off Time (toff) vs. RR Resistance Characteristics
1000
Ta = 25°C, Rf = 180kΩ, Cf = 3300pF,
CRES = 1500pF, RT = 390kΩ
CR = 0.47µF
Clock Off Time (toff) (ms)
500
CR = 0.1µF
100
CR = 0.033µF
50
10
10
50
100
500
1000
RR Resistance (kΩ)
Reset Pulse High Time (tRH) vs. RR Resistance Characteristics
1000
Ta = 25°C, Rf = 180kΩ, Cf = 3300pF,
RT = 390kΩ, CRES = 1500pF
CR = 0.47µF
Reset Pulse High Time (tRH) (ms)
500
CR = 0.1µF
100
50
CR = 0.033µF
10
5
1
10
50
100
RR Resistance (kΩ)
Rev.1.00 Jun 15, 2005 page 18 of 22
500
1000
HA16129AFPJ
Reset Pulse Low Time (tRL) vs.
RR Resistance Characteristics
1000
Reset Pulse Low Time (tRL) (ms)
500
Ta = 25°C, Rf = 180kΩ, Cf = 3300pF,
RT = 390kΩ, CRES = 1500pF
CR = 0.47µF
100
CR = 0.1µF
50
10
CR = 0.033µF
5
1
10
50
100
500
1000
RR Resistance (kΩ)
RES Delay Time and Recovery Time (tr) vs.
Rf Resistance Characteristics
10000
RES Delay Time and Recovery Time (tr) (µs)
5000
Ta = 25°C, Cf = 3300pF, RR = 180kΩ,
RT = 390kΩ, CR = 0.1µF
CRES = 0.01µF
CRES = 1500pF
1000
500
100
CRES = 560pF
50
10
10
50
100
Rf Resistance (kΩ)
Rev.1.00 Jun 15, 2005 page 19 of 22
500
1000
HA16129AFPJ
RES Delay Time and Disable Time (tRES) vs.
Rf Resistance Characteristics
10000
RES Delay Time and Disable Time (tRES) (µs)
5000
Ta = 25°C, Cf = 3300pF, RR = 180kΩ,
CR = 0.1µF, RT = 390kΩ
CRES = 0.01µF
1000
CRES = 1500pF
500
100
CRES = 560pF
50
10
10
100
50
500
1000
Rf Resistance (kΩ)
Output Voltage vs.
Roadj Resistance (to Ground) Characteristics
6.0
Ta = 25°C, VCC = 12V, Cf = 3300pF, Rf = 180kΩ,
CR = 0.1µF, RR = 180kΩ, RT = 390kΩ, CRES = 1500pF
5.8
Output Voltage (V)
5.6
VCC
5.4
Vout
Voadj
V
Roadj
5.2
5.0
4.8
100
500
1000
Roadj Resistance (to Ground) (kΩ)
Rev.1.00 Jun 15, 2005 page 20 of 22
5000
→•
HA16129AFPJ
Output Voltage vs.
Roadj Resistance (to Vout) Characteristics
5.0
Ta = 25°C, VCC = 12V, Cf = 3300pF, Rf = 180kΩ,
CR = 0.1µF, RR = 180kΩ, RT = 390kΩ,
CRES = 1500pF
Output Voltage Vout (V)
4.8
4.6
4.4
VCC
4.2
Vout
Voadj
V
Roadj
4.0
3.8
100 k
500 k
5M
1M
10 M
Roadj Resistance (to Vout) (kΩ)
ICONT Current vs. Vout Voltage Characteristics
40
Ta = 25°C,
Cf = 3300pF,
Rf = 180kΩ,
CR = 0.1µF,
RR = 180kΩ,
RT = 390kΩ,
CRES = 1500pF
ICONT Current (µA)
30
20
10
0
4.92
4.94
4.96
4.98
Vout Voltage (V)
5.00
ICONT
A
Vout
Vout CONT
CS
VCC
Vout Voltage (V)
Rev.1.00 Jun 15, 2005 page 21 of 22
VCC
12 V
5.02
HA16129AFPJ
Package Dimensions
JEITA Package Code
P-SOP20-5.5x12.6-1.27
RENESAS Code
PRSP0020DD-A
*1
Previous Code
FP-20DA
MASS[Typ.]
0.31g
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
F
D
20
11
bp
c1
c
HE
*2
E
b1
Index mark
Reference
Symbol
Terminal cross section
Z
e
*3
Nom
Max
D
12.6
13
E
5.5
A2
10
1
A1
bp
x
Dimension in Millimeters
Min
M
0.00
0.10
0.20
0.34
0.42
0.50
2.20
A
L1
bp
0.40
b1
c
A
c
A1
θ
y
L
Detail F
0.17
θ
0°
HE
7.50
0.27
8°
7.80
8.00
1.27
e
x
0.12
y
0.15
0.80
Z
0.50
L
L
Rev.1.00 Jun 15, 2005 page 22 of 22
0.22
0.20
1
1
0.70
1.15
0.90
Sales Strategic Planning Div.
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