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Details, datasheet, quote on part number:V7039SO16A
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Datasheet text preview:
EM MICROELECTRONIC-MARIN SA
V7039
High Efficiency Programmable Linear Power Supply with Accurate Power Surveillance and Software Monitoring with Crystal Oscillator
Features
Supply current 10 µA max. for the load current range 0 50 mA, 5 V regulated output Digitally programmable voltage regulator, 5 V, 3 V or 2 V Low dropout voltage, typically 4 mV at 100 µA load Fully operational for unregulated DC input voltage up to 10 V and regulated output voltage down to 1.5 V Short circuit and thermal protection Battery fail warning, regulator input tested (5 mA for 300 µs) every 15 minutes Power-on reset and power-down reset Watchdog with 2 s timeout Watchdog offers the possibility to detect a microcontroller in sleep mode Pulse output every 15 minutes for time management Clock output with three modes of operation: 1. A 92 s retriggerable monostable 2. A 2 kHz square wave for piezo electric buzzer 3. A 32.768 kHz system clock -40 to +85 °C temperature range DIP16 and SO16 packages
Applications
Security systems Remote smart sensors Pagers Battery operated and portable products
Typical Operating Configuration
XI XO TCL MS0 MS1 VS0 VS1 VIN PT
CLKOUT
V7039
VSS
PF WD RES VOUT
Description
The V7039, with a total current consumption of 10 µA max., is very suited to battery driven portable microcontroller systems. Combined on one IC are a digitally programmable voltage regulator, power surveillance and battery fail circuitry, a watchdog, pulse and clock outputs and a crystal oscillator. The state of the battery supply is sampled every 15 minutes by drawing a current of 5 mA for 30 ms. If the voltage dropped across a resistor brings the voltage at the pad PT below the reference voltage of 1.3 V, then the PF pin goes active. The P15 output supplies a pulse of 30 ms every 15 minutes which allows regular long term time management by the user's software. The CLK output can supply a retriggerable monostable with a timeout of 92 seconds or square waves of 2 kHz or 32.768 kHz. The watchdog function monitors software execution by checking the TCL signal for a change of state within a timeout period of 2 seconds. If the watchdog times out, RES is activated; the WD output is also activated to indicate to software that a watchdog time out caused the reset. If the microcontroller TCL output is put in a high impedance condition, the V7039 will detect this condition as a microcontroller in the sleep mode and prevent its watchdog from timing out.
Fig. 1
Pin Assignment
DIP16/SO16 VOUT XI XO VS0 VS1 MSO PT VSS V7039
VIN RES WD TCL P15 PF CLKOUT MS1
Fig. 2
1
V 7 0 39
Absolute Maximum Ratings
Parameter Voltage VIN to VSS Max. voltage at any signal pin Min. voltage at any signal pin Operating junction temp. range Storage temperature Electrostatic discharge max. to MIL-STD-883C method 3015 Max. soldering conditions S ymb o l VIN V MAX VMIN TJ TSTO VSmax TSmax Condi tions - 0.5 to + 11 V VOUT + 0.3 V VSS 0.3 V -40 to +125 °C - 65 to + 150 °C 1000 V 250 °C x 10 s
Operating Conditions
Parameter Operating junction temperature Supply voltage 1) Operating VOUT voltage 1) IOUT 2) at VOUT = 5 V at VOUT = 3 V at VOUT = 2 V Thermal resistance 3) (junction to ambient ) - DIP16 - SO16 Decoupling capacitors on VIN and VOUT Load capacitors on VIN and VOUT 4) Crystal characteristics Frequency Load capacitance Series resistance Symbol Min. TJ VIN VOUT IOUT IOUT IOUT -40 2 1.5 Typ. Ma x . +85 10 6.0 50 20 10 Units °C V V mA mA mA
Table 1 Stresses above these listed maximum ratings may cause permanent damage to the device. Exposure beyond specified operating conditions may affect device reliability or cause malfunction.
Rth(j-a) Rth(j-a) CT CL f CL RS 100 2.2 32.768 8.2 35
160 240
°C/W °C/W nF µF kHz pF k
Handling Procedures
This device has built-in protection against high static voltages or electric fields; however, anti-static precautions must be taken as for any other CMOS component. Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the supply voltage range. Unused inputs must always be tied to a defined logic voltage level.
50
Table 2
1)
Full operation quaranteed. If the regulator is bypassed (ie. VIN tied to VOUT) the VOUT voltage must not exceed 6.0 V. 2) IOUT will not apply for all possible combinations of input voltage and output current. Combinations that would require the V7039 to work above the maximum junction temperature (85 °C) must be avoided. 3 The thermal resistance from junction to ambient specified assumes that the package is soldered onto a PCB. 4) The 2.2 µF capacitor must have an effective resistance of 5 or less and a resonant frequency of above 500 kHz.
2
V 7 0 39
Electrical Characteristics
Parameter Static supply current Dynamic supply current Output voltage Output voltage Output voltage Line regulation Load regulation Dropout voltage 1) Dropout voltage 1) Current limit Inputs Input logic high Input logic low WIN high impedance detect current PT test voltage PT sink current Outputs CLKOUT output logic high CLKOUT output logic low Output logic high Output logic low P15 output logic high P15 output logic low
1)
VIN = 7 V, VOUT programmed for 5 V, IL = 0, PT pulled up to VIN with 700 , VSS = 0 V, -40 °C TJ +85 °C, unless otherwise specified
Symbol Test Conditions IDD IDD VOUT VOUT VOUT VLINE VL VDROPOUT VDROPOUT ILmax V IH V IL IZ VT IT VOH VOL VOH VOL VOH VOL IOH = 3 mA IOL = 5 mA IOH = 5 mA IOL = 8 mA IOH = 0.25 mA 2) IOL= 8 mA VIN = 10 V, 0 IL 50 mA, I/PS at VSS CLKOUT programmed for 2 kHz, output load capacitance 50 pF 0 IL 50 mA VIN = 4.5 V, VOUT programmed for 3 V, 0 IL 20 mA VIN = 3 V, VOUT programmed for 2 V, 0 IL 10 mA 6 V VIN 10 V, IL = 10 mA 0 IL 30 mA IL = 100 µA IL = 30 mA, TJ = 25 °C VOUT tied to VSS
Min.
Typ. 7
Max. 12 14 5 .25 3 .15 2.1 0.35 1 50 850 180
Unit
µA µA
4.75 2.85 1.9
8.5 5 3 2 0.03 0.4 4
V
V V % % mV mV mA V V V mA V V V V V
Table 3 µA
VOUT-1 50 1.2 4.5 VOUT-0.4 VOUT-0.4 VOUT-1.2 120 1.3 5.5
VOUT+1 180 1.4 6.5
0.4 0.4 0.4
2)
The dropout voltage is defined as the VIN to VOUT differential at which VOUT drops 100 mV below its nominal value measured at a 1 V differential. The supply current does not increase significantly in dropout. The P 15 output has a 4 k resistor in serie with the Pchannel buffer. This makes possible to force this output to low ( 2 V for 5 V VOUT) to perform a battery test.
3
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