HA16129FPJ Single Watchdog Timer Description The HA16129FPJ is a watchdog timer IC that monitors a microprocessor for runaway. In addition to the watchdog timer function, the HA16129FPJ 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 (4.63V, Typ) or the STBY detection voltage (3.0V Typ), this function outputs either an NMI signal or an STBY signal, respectively. Note that NMI detection can be set to monitor either V CC 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 HA16129FPJ incorporates both Vout overvoltage prevention and current limiter functions. Note: 1. OUTE function: OUTE is an abbreviation for output enable. HA16129FPJ Features • • • • • High-precision output voltage: 5.0V ± 1.5% The WDT supports both frequency and duty detection schemes. High-precision power supply monitoring function: 4.625V ± 0.125V Built-in OUTE function All functions can be adjusted with external resistors and/or capacitors. 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) 2 HA16129FPJ Block Diagram VCC CONT 12 13 14 Voadj 9 1.24V – + 31.2k VOUT 150mV + – 3.3k 71k STBYadj 19 CS 11 To microprocessor (or other device) power supply connections – + 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 Overcurrent 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 If/6 18 8.4k + – 33k If*16 3.3k – – + RES 20k IR*4/3 Cf – + WDT block 3 RES block 1 CRES + – 7 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 3 HA16129FPJ Pin Function Related Function Pin No. Symbol Function WDT. 1 P-RUN Watchdog timer pulse input. The auto-reset function is controlled by the duty cycle or frequency of this input pulse signal. 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 R R pin charges the capacitor CR and the potential on this pin controls the RES function (toff, t RH, and tRL). t ON 6 RT The resistor RT, 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 tr, tRES 7 CRES The current determined by the Rf pin charges the capacitor C RES, and the RES delay times (Tr and TRES ) are determined by the potential of this capacitor. — 8 GND Ground Vout 9 Voadj 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 10 OUTE Output for the OUTE function Power supply 11 VCC Power supply Current limiter 12 CS Current limiter current detection. 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. (This function can not operate when VOUT < 2 V) Vout 13 CONT Connect this pin to the base of the external transistor. 14 VOUT Provides the regulator output voltage and the IC internal power supply. Connect this pin to the collector of the external transistor. 15 NMIsns This pin senses the NMI detection voltage. If VCC 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 VOUT pin. 16 NMIadj Insert a resistor if fine adjustment of the NMI detection voltage is required. Leave this pin open if fine adjustment is not required. Output 17 NMI NMI output Output 18 RES RES output STBY 19 STBYadj Insert a resistor if fine adjustment of the S T B Y detection voltage is required. Leave this pin open if fine adjustment is not required. Output 20 STBY STBY output t RH, t RL, tOFF NMI 4 HA16129FPJ 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 5V 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 20mA. Also note that the Vout output is also used for the power supply for this IC’s internal circuits. Current Limiter Block When a current detection resistor (R CS) is connected between the VCC pin and the CS pin, and the voltage between these pins exceeds the VCS voltage (150mV Typ), the CONT pin function turns off and the output voltage supply is stopped. This function can not work when VOUT < 2V. 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 (7V 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 (4.63V 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 50mV (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 (3.0V Typ). Then, when the powersupply voltage that fell rises again, the STBY pin will output a high level. Note that this function has a fixed hysteresis of 1.35V (Typ). The detection voltage can also be adjusted with the STBYadj pin. 5 HA16129FPJ 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) 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 – 0.2V (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. 6 HA16129FPJ 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. t ON is the time for the potential of the CR pin to reach VthHcr1 from 0V. tr The time tr is the fixed delay time between the point the NMI output goes from low to high after the powersupply 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 1.9V) to Vthcres. tRES The time tRES is the fixed delay time between the point the NMI output goes from high to low when the power-supply 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 0V 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. 7 HA16129FPJ Calculation Formulas Item Formula Notes Reference voltage Vout = 1.225 1 + ( 37 // R1 12 // R2 ( R1, R2; kΩ 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 Current limiter voltage VCS (150 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 IL CS Vout OVP — 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. t RH, t RL tRH = 3.3 × CR · RR tRL = 1.1 × CR · RR These determine the reset pulse frequency and duty. tRL RES tRH t ON 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 t OFF 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 8 toff HA16129FPJ Calculation Formulas (cont) Item Formula Notes VSTBY VSTBY = 1.48 × +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 The voltage at which the NMI signal is output when Vout falls. (When NMIsns is connected to Vout.) ( R1, R2; kΩ The N M I 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 R1 VNMI = 4.68 × +1 R2 // 45.5 R1, R2; kΩ ( ( The voltage at which the NMI signal is output when VCC falls. (When NMIsns is connected to VCC.) The N M I detection voltage can be adjusted by connecting resistors between the NMIsns pin and V CC (R1), and between the NMIsns pin and ground (R2). R1 VCC CS NMIsns Vout NMI R2 VNMI' VCC VNMI NMI GND OUTE CR × RR > 19.3 × Cf × Rf 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 HA16129FPJ Calculation Formulas (cont) Item Formula Notes WDT. 0.31 × (Du – 24) Cf · Rf fLine2 = 24% (fixed) 0.024 fLine3 = Cf · Rf fLine4 = 99% 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 f Line1 to f Line4 in the figure. fLine1 = The relationship between fLine1 and fLine3 fLine1 = fLine3 × 12.9 (Du – 24) fLine1 Du: The P-RUN signal duty cycle tL Frequency tH t Du = H × 100 tH + tL Normal operation area fLine2 fLine3 Duty 10 fLine4 HA16129FPJ Timing Charts Whole system timing chart VCC VOUT VNMI VSTBY' VNMI' VSTBY STBY NMI RES tON tRL tRES tRH tRES tr OUTE tOFF P-RUN Microprocessor runaway 11 HA16129FPJ 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' VNMI VOUT VSTBY STBY NMI CR RES & OUTE CRES 12 tr tON tRES Vthcres HA16129FPJ Absolute Maximum Ratings (Ta = 25°C) Item Symbol Rating Unit Power supply voltage VCC 40 V CS pin voltage VCS VCC V CONT pin current Icont 20 mA CONT pin voltage Vcont VCC V Vout pin voltage Vout 12 V P-RUN pin voltage VPRUN Vout V NMIsns pin voltage VNMIsns VCC V NMI pin voltage VNMI Vout V STBY pin voltage VSTBY Vout V RES pin voltage VRES Vout V VOUTE Vout V PT 400 mW Operating temperature Topr –40 to +85 °C Storage temperature Tstg –50 to +125 °C OUTE pin voltage Power dissipation 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: *1 77°C 400 300 200 100 0 –40 –20 85°C 0 20 40 60 80 100 120 140 Ambient Temperature Ta (°C) 13 HA16129FPJ 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) Test conditions Item Symbol Min Typ Max Unit Power supply current I CC — 10 15 mA Current limiter voltage VCS 100 150 200 mV VCS = (VCC pin voltage – CS pin voltage) Regulator Output voltage block 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 Icont = 5mA Output voltage adjustment range VoMAX — — 7.0 V ViH 2.0 — — V Input low-level voltage ViL — — 0.8 V Input high-level current I iH — 300 500 µA ViH = 5.0V Input low-level current I iL –5 0 5 µA ViL = 0.0V NMI output High level block VOHN Vout – 0.2 Vout Vout + 0.2 V I OHN = 0mA Low level VOLN — — 0.4 V I OLN = 2.0mA Function start voltage VSTN — 0.7 1.4 V High level VOHS Vout – 0.2 Vout Vout + 0.2 V I OHS = 0mA Low level VOLS — — 0.4 V I OLS = 2.0mA Function start voltage VSTS — 0.7 1.4 V P-RUN Input high-level voltage input block STBY output block Note: Values in parentheses are design reference values. 14 HA16129FPJ 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) (cont) Item RES output block OUTE output block RES function LVI function Min High level VOHR Vout – 0.2 Vout Vout + 0.2 V I OHR = 0mA Low level VOLR — — 0.4 V I OLR = 2.0mA Function start voltage VSTR — 0.7 1.4 V High level VOHE Vout – 0.2 Vout Vout + 0.2 V I OHE = 0mA Low level VOLE — — 0.4 V I OLE = 2.0mA Function start voltage VSTE — 0.7 1.4 V Power on time ton 25 40 60 ms Clock off time toff 80 130 190 ms Reset pulse high time t RH 40 60 90 ms Reset pulse low time t RL 15 20 30 ms NMI function (Vout detection) VNMI1 4.5 4.63 4.75 V — 50 100 mV Temperature | δVNMI/δT | — coefficient 100 (400) ppm/°C Detection voltage 2 5.0 5.4 5.7 V R1 = 13kΩ, R2 = 390kΩ Hysteresis 2 VHYSN2 0.5 0.8 1.3 V R1 = 13kΩ, R2 = 390kΩ Detection voltage VSTBY 2.70 3.00 3.30 V Hysteresis VHYSS 1.20 1.35 1.50 V 100 (400) ppm/°C Detection voltage 1 Hysteresis 1 VHYSN1 NMI function (VCC detection) STBY function VNMI2 Temperature | δVSTBY/δT | — coefficient RES Disable time delay time Recovery time Typ Max Unit Test conditions Symbol t RES (100) 200 (300) µs tr (100) 200 (300) µs Note: Values in parentheses are design reference values. 15 HA16129FPJ Test Circuits • Vout test circuit Units: Resistors — Ω Capacitors — F Icont A VCC Vout VCC STBY CS CONT Vout STBYadj NMI HA16129FPJ 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 HA16129FPJ 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 HA16129FPJ V 16 Frequency counter RES f = 1kHz duty = 50% 180k NMIadj Cf 3300p 180k RR CR 0.1µ RT 390k R1 13k NMI VCC detection NMIsns Voadj P-RUN Rf NMI Vout detection GND CRES 1500p R2 390k HA16129FPJ 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 VOUT 14 8 GND CONT 13 9 Voadj CS 12 10 OUTE VCC 11 180k 0.1µ 390k 1500p PORT NMIsns 15 (5 V) + To other power supplies 200µ IGN SW. 0.2 + Load 180k HA16129FPJ 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 VOUT 14 8 GND CONT 13 180k 0.1µ 390k 1500p NMIsns 15 Voadj CS 12 10 OUTE VCC 11 9 VCC PORT NMIadj 16 To other power supplies R2 Q1 + 200µ (5V) R3 Q2 0.2 IGN R5 SW. Primary detection + DS D1 R4 R1 Load 180k HA16129FPJ 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 17 HA16129FPJ 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) 18 500 1000 HA16129FPJ 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 50 100 500 1000 RR Resistance (kΩ) 19 HA16129FPJ 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 = 1500pF 1000 500 100 CRES = 560pF 50 10 10 50 100 Rf Resistance (kΩ) 20 CRES = 0.01µF 500 1000 HA16129FPJ 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 5000 →∞ Roadj Resistance (to Ground) (kΩ) 21 HA16129FPJ 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 1M 5M 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) 22 VCC 12 V 5.02 HA16129FPJ Package Dimensions Unit: mm 12.6 13 Max 11 1 10 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.80 Max *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 5.5 20 0.20 7.80 +– 0.30 1.15 0° – 8° 0.70 ± 0.20 0.15 0.12 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Mass (reference value) FP-20DA — Conforms 0.31 g 23 HA16129FPJ Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi’s sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor products. Hitachi, Ltd. Semiconductor & Integrated Circuits. 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Ltd. 16 Collyer Quay #20-00 Hitachi Tower Singapore 049318 Tel: 535-2100 Fax: 535-1533 Hitachi Asia Ltd. Taipei Branch Office 3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105) Tel: <886> (2) 2718-3666 Fax: <886> (2) 2718-8180 Hitachi Asia (Hong Kong) Ltd. Group III (Electronic Components) 7/F., North Tower, World Finance Centre, Harbour City, Canton Road, Tsim Sha Tsui, Kowloon, Hong Kong Tel: <852> (2) 735 9218 Fax: <852> (2) 730 0281 Telex: 40815 HITEC HX Copyright ' Hitachi, Ltd., 1998. All rights reserved. Printed in Japan. 24