|
Details, datasheet, quote on part number:ZM33064N8
| |
Datasheet text preview:
SUPPLY VOLTAGE MONITOR
ISSUE 4 - JANUARY 2003 DEVICE DESCRIPTION
T h e ZM33064 is a three terminal under voltage monitor circuit for use in m ic r o p r o c e s s o r systems. The threshold voltage of the device has been set to 4.6 volts making it ideal for 5 volt circuits. Included in the device is a precise voltage reference and a comparator with built in hysteresis to prevent erratic operation. The ZM33064 features an open collector output capable of sinking at least l0mA which only r e q u i r e s a single external resistor to interface to following circuits. Operation of the device is guaranteed from one volt upwards, from this level to the device threshold voltage the output is held low providing a power on reset function. Should the supply voltage, once established, at any time drop below the threshold level then the output again will pull low. The device is available in a TO92 package for through hole applications as well as SOT223 for surface mount requirements.
ZM33064
FE AT URES
· · · · · · · · · · · · · · ·
SOT223 and TO92 packages Power on reset generator Automatic reset generation Low standby current Guaranteed operation from 1 volt Wide supply voltage range Internal clamp diode to discharge delay capacitor 4.6 volt threshold for 5 volt logic 20mV hysteresis prevents erratic operation
APPLICATIONS
Microprocessor systems Computers Computer peripherals Instrumentation A u to mo tive Battery powered equipment
SCHEMATIC DIAGRAM
4- 89
ZM 33064
ABSOLUTE MAXIMUM RATING
Input Supply Voltage Offstate Output Voltage Onstate Output Sink Current(Note 1) Clamp diode Forward Current(Note 1) Operating junction temperature Operating Temperature Storage Temperature -1 to 10V 10V Internally limited 1 0 0m A 1 5 0° C -40 to 85°C -65 to 150°C Power Dissipation TO92 SO T 2 23 7 80 m W 2W(Note 2)
TEST CONDITIONS (Tamb=25°C for typical values, Tamb=-40 to 85°C for min/max values (Note3)) C O M P A R A TO R
P A RA ME TE R Threshold Voltage High state output (Vcc increasing) Low state output (Vcc decreasing) H y s t e r e s is SY MB O L VIH VIL VH 4 .5 4 .5 0 .0 1
M IN T YP. MAX.
UNITS V V V
4.61 4.59 0.02
4 .7 4 .7 0 .0 5
OU PUT
P A RA ME TE R Output sink saturation: ( V c c = 4 . 0 V , Is i n k = 8 . 0 m A ) ( V c c = 4 . 0 V , Is i n k = 2 . 0 m A ) ( V c c = 1 . 0 V , Is i n k = 0 . 1 m A ) Onstate output sink current (Vcc , Output=4V) Offstate output leakage current (Vcc , Output=5V) Clamp diode forward voltage (If =10 mA ) Propagation delay (Vin 5V to 4V, Rl=10k, Tamb=25°C) Is i n k Io h Vf Td 0 .6 10 20 0.02 1.2 1.5 SY MB O L VO L 0.46 0.15 1 .0 0 .4 0 .2 5 60 0 .5 1 .5 V V V mA µA V µs
M IN T YP. MAX.
UNITS
TOTAL DEVICE
P A RA ME TE R Operating input voltage range Quiescent input current (Vcc=5V) SY MB O L Vc c Iq
M IN T YP. MAX.
UNITS V
1.0 to 6.5 13 5 200
µA
Note: 1. Maximum package power dissipation must be observed 2. Maximum power dissipation for the SOT223 package is calculated assuming that the device is mounted on a PCB measuring 2 inches square. 3. Low duty cycle pulse techniques are used during test to maintain junction temperatures as 4 -9 0
ZM33064
TYPICAL CHARACTERISTICS
500 10 R L =10K T A=25 °C
400
8
Input Current (µA)
300
Output Voltage (V)
6
200 -40 °C 25 °C 85 °C 100
4
2
0 0 2 4 6 8 10
0 0 2 4 6 8 10
Input Voltage
(V)
Input Voltage
(V)
Input Current vs. Input Voltage
30 Vin=4V -40 °C 5 4
Output Voltage vs. Input Voltage
R L =10K
Vin (V)
25 °C
Sink Current (mA)
20 85 °C
4 2
0 0 0.4 0.8 1.2 1.6 2.0
Vout (V)
10
0 0 1 2 3 4
Output Saturation Voltage (V)
Time (µs)
Output Saturation Voltage vs. Sink Current
80 Vin=0V 4.70
Reset Delay Time
60
4.65
Forward Current (mA)
Threshold Voltage (V)
85 °C 40 25 °C
Upper Threshold 4.60
-40 °C 20
Lower Threshold 4.55
0 0 0.4 0.8 1.2 1.6 2.0
4.50 -40 -20 0 20 40 60 80 100
Forward Voltage (V)
Temperature ( °C)
Clamp Diode Forward Current vs. Voltage
Threshold Voltage vs. Temperature
4- 91
|
|
