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| TECHNICAL DATA Voltage Detector FUNCTIONS * Detecting against error operations at the power ON/OFF * Resetting function for low voltage microprocessor * Checking low battery * Active Low * CMOS or open drain output (mask option) * Tolerance 2% KK75Axx BT75X X TO-92 VSS VCC OUT FEATURES * Low Power Consumption * Low Temperature Coefficient * Built-in Voltage Reference * Comparator Hysteresis * TO-92, SOT-23 packages are available 1 VCC VSS 3 SOT-23 2 OUT GENERAL DESCRIPTION The KK75AXX series are the voltage detectors, consist of a high-precision voltage reference, a comparator with precise thresholds and built-in hysteresis and an output driver. ABSOLUTE MAXIMUM RATINGS (TA = 25oC) Characteristic Symbol Value Unit Supply Voltage Operating Temperature Storage Temperature Output Current VCC Topr Tstg IO -0.3 ~ +8.0 -10 ~ +70 -40 ~ +125 30 V o o C C mA 1 KK75Axx ELECTRICAL CHARACTERISTICS Characteristic Supply Voltage Symbol VCC (TA = 25oC, unless otherwise specified) Test Conditions Min 1.2 2.16 2.35 2.50 2.65 2.74 3.23 3.82 4.12 4.61 4.90 VCC = 5.0V, No Load VCC = VDET-0.2V, IOL = 0.1mA VCC = VDET+0.2V, IOH = 0.1mA -10oC < TA <70oC VCC - 0.3V 2.0 0.02 2.20 2.40 2.55 2.70 2.80 3.30 3.90 4.20 4.70 5.00 8 0.1 Typ Max 5.5 2.24 2.45 2.60 2.75 2.86 3.37 3.98 4.28 4.79 5.10 15 0.3 Unit V V Detecting Voltage VDET Supply Current Low Output Voltage High Output Voltage Hysteresis Voltage Detective Voltage Temperature Coefficient ICC VOL VOH VHYS VDET T x VDET A V V % %/oC BLOCK DIAGRAM CMOS OUTPUT OPEN DRAIN OUTPUT VCC VCC RA VB + RA VB + OUT RB VREF OUT RB - VSS RC VREF VSS RC FUNCTIONAL DESCRIPTION The KK75AXX series is the set of voltage detectors equipped with a high stability voltage reference which is connected to the negative input of a comparator - denoted as VREF in block diagram. When the voltage drop to the positive input of the comparator (VB) is high than VREF, VOUT goes high. If VCC is decreased so that VB falls to a value less than VREF, the comparator output inverts from high to low, VOUT goes low. The device has hysteresis to prevent the circuit from oscillation when VB VREF. If VCC falls below the minimum operating voltage, the output becomes undefined. The detectable voltage is defined as: VDET ( - ) = RA + RB + RC xVREF RB + RC The release voltage is defined as: RA + RB x VREF RB VDET + ( )= The hysteresis width is: VHYS = VDET ( + ) - VDET ( - ) 2 KK75Axx ELECTRICAL CHARACTERISTICS 1. OUTPUT VOLTAGE vs. SUPPLY VOLTAGE BT75A25 2. OUTPUT LOW CURRENT vs. SUPPLY VOLTAGE BT75A25 3 Output Current: IOUT (mA) Output Voltage: VOUT (V) Ta=25OC 2 10 VOUT=0.5V 8 6 4 2 0 Ta=25 C O 1 0 0 1 2 3 Supply Voltage: VCC (V) 0 0.5 1.0 1.5 2.0 2.5 Supply Voltage: VCC (V) 3.0 3. NORMALIZED VOL vs. TEMPERATURE 1.6 NORMALIZED VOH vs. TEMPERATURE 1.06 1.04 1.4 VCC=2.5V, IOH=1.5mA Output Voltage, VOL (V) 1.2 Output Voltage, VOH (V) 1.02 1 0.98 0.96 0.94 -50 VCC=5V, IOH=3.5mA 1 0.8 0.6 -50 +50 0 Temperature, TA (OC) +100 VCC=3.5V, IOH=2.5mA 0 +50 Temperature, TA ( OC) +100 4. VOL vs. OUTPUT CURRENT 500 VCC=1.6V 800 V CC - VOH vs. OUTPUT CURRENT VCC=2.5V VCC=5V 700 600 VCC - V OH (V) VCC=3.5V 400 VCC=5V Output Voltage, VOL (V) 300 500 400 300 200 200 100 100 0 0 0 2 4 6 Output Current, IOL (mA) 8 0 2 4 6 Output Current, IOH (mA) 8 3 KK75Axx 5. VOL vs. SUPPLY VOLTAGE 500 500 VCC - VOH vs. SUPPLY VOLTAGE 400 VCC - V OH (V) 400 IOH=4mA Output Voltage, VOL (V) 300 300 IOH=2mA IOH=1mA 200 IOL=4mA 200 IOL=2mA 100 IOL=500A 0 1.5 2.5 3.5 Supply Voltage, VCC (V) 4.5 IOL=1mA 100 IOH=500 A 0 1.5 2 3.5 4 2.5 3 Supply Voltage, VCC (V) 4.5 5 6. SUPPLY CURRENT vs. TEMPERATURE 1.02 30 NORMALIZED THRESHOLD vs. TEMPERATURE 1.015 1.010 Supply Current, ICC (m A) 1.005 20 VCC=5V VCC=2.0V 10 1.000 {1} Threshold 0.995 0.99 0.985 0.98 -50 0 -50 +50 0 Temperature, T A (OC) +100 +50 0 Temperature, T A (OC) +100 ORDERING INFORMATION BT75A XX XX - XX PF = Pb Free 22 -> 2.20V 24 -> 2.40V 25 -> 2.55V . . 42 -> 4.20V 47 -> 4.70V 50 -> 5.00V S = SOT-23 LS = TO-92 Straight (Bulk) LF = TO-92 Form (Taping) 4 KK75Axx PACKAGE DIMENSIONS SOT-23 b A C A A1 b Dimension min 0.75 0.25 0.38 0.50 1.20 2.10 2.80 0.85 0.40 0.09 mm max 0.95 1.10 0.46 0.65 1.40 2.50 3.00 1.05 0.60 0.15 D D1 C D D1 E e E e L Q A1 e L Q 5 KK75Axx TO-92 6 |
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