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INTEGRATED CIRCUITS
SA56606-XX CMOS system reset
Product data Supersedes data of 2001 Apr 24 File under Integrated Circuits, Standard Analog 2001 Jun 19
Philips Semiconductors
Philips Semiconductors
Product data
CMOS system reset
SA56606-XX
GENERAL DESCRIPTION
The SA56606-XX is a CMOS device designed to generate a reset signal for a variety of microprocessor and logic systems. Accurate reset signals are generated during momentary power interruptions or whenever power supply voltages sag to intolerable levels. An Open Drain output topology is incorporated for adaptability to a wide variety of logic and microprocessor applications. Several reset threshold versions of the device are available. The SA56606-XX is available in the SOT23-5 surface mount package.
FEATURES
• 12 VDC maximum operating voltage • CMOS N-channel Open Drain output • Offered in reset thresholds of • Available in SOT23-5 surface mount package
SIMPLIFIED SYSTEM DIAGRAM
VDD 2 VDD
APPLICATIONS
2.0, 2.7, 2.8, 2.9, 3.0, 3.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7 VDC
• Microcomputer systems • Logic systems • Battery monitoring systems • Back-up power supply circuits • Voltage detection circuits
VDD
SA56606-XX
R VOUT
RPU CPU
VREF R R
1
RESET
VSS 3 VSS VSS
SL01313
Figure 1. Simplified system diagram.
2001 Jun 19
2
885–2247 26559
Philips Semiconductors
Product data
CMOS system reset
SA56606-XX
ORDERING INFORMATION
PACKAGE TYPE NUMBER SA56606-XXGW NAME SOT23-5, SOT25, SO5 DESCRIPTION plastic small outline package; 5 leads (see dimensional drawing) TEMPERATURE RANGE –40 to +85 °C
NOTE: The device has twelve detection voltage options, indicated by the XX on the order code. XX 20 27 28 29 30 31 42 43 44 45 46 47 DETECT VOLTAGE (Typical) 2.0 V 2.7 V 2.8 V 2.9 V 3.0 V 3.1 V 4.2 V 4.3 V 4.4 V 4.5 V 4.6 V 4.7 V
Part number marking
Each package is marked with a four letter code. The first three letters designate the product. The fourth letter, represented by ‘x’, is a date tracking code. For example, AAKB is device AAK (the SA56606-30 reset), produced in time period ‘B’. Part number SA56606-20 SA56606-27 SA56606-28 SA56606-29 SA56606-30 SA56606-31 SA56606-42 SA56606-43 SA56606-44 SA56606-45 SA56606-46 SA56606-47 Marking AA F x AA G x AA H x AA J x AA K x AA L x AA M x AA N x AA P x AA R x AA S x AAT x
PIN CONFIGURATION
PIN DESCRIPTION
PIN SYMBOL VOUT VDD VSS N/C N/C DESCRIPTION Reset High Output Positive Supply Ground. Negative Supply No connection No connection 1 2
VOUT
1
5
N/C
VDD
2
SA56606-XX
3 4
VSS
3
4
N/C
5
SL01312
Figure 2. Pin configuration.
MAXIMUM RATINGS
SYMBOL VDD VOUT IOUT Toper Tstg P Power supply voltage Output voltage Output current Operating temperature Storage temperature Power dissipation PARAMETER MIN. –0.3 – – –40 –40 – MAX. 12 VSS – 0.3 50 85 125 150 UNIT V V mA °C °C mW
2001 Jun 19
3
Philips Semiconductors
Product data
CMOS system reset
SA56606-XX
DC ELECTRICAL CHARACTERISTICS
Characteristics measured with Tamb = 25 °C, unless otherwise specified. SYMBOL VS ∆VS VS/∆T ICC IOH IDS1 IDS2 IDS3 PARAMETER Reset detection threshold Hysteresis Threshold voltage temperature coefficient Supply current IDS leakage current when OFF N-channel IDS output sink current 1 N-channel IDS output sink current 2 (for VS > 2.6 V) N-channel IDS output sink current 3 (for VS > 3.9 V) VDD = 0 V → VS + 1.0 V → 0 V –40 °C ≤ Tamb ≤ +85 °C VDD = VS + 1.0 V VDD = VDS = 10 V VDS = 0.5 V; VDD = 1.2 V VDS = 0.5 V; VDD = 2.4 V VDS = 0.5 V; VDD = 3.6 V 2 Fig. 18 1 Fig. 17 CONDITIONS TEST CIRCUIT MIN. VS – 2% VS × 0.03 – – – –0.23 –1.6 –3.2 TYP. VS VS × 0.05 ±0.01 0.25 – –1.4 –8.3 –14.7 MAX. VS + 2% VS × 0.08 – 1.0 0.1 – – – UNIT V V %/°C µA µA mA mA mA
2001 Jun 19
4
Philips Semiconductors
Product data
CMOS system reset
SA56606-XX
TYPICAL PERFORMANCE CURVES
0.50 0.45 I DD, SUPPLY CURRENT (mA) 0.40 0.35 0.30 0.25 0.20 0.15 0.10 –50 VDD = VS + 1.0 V NORMALIZED TO 25 °C +0.20 +0.15 +0.10 +0.05 VS –0.05 –0.10 –0.15 –0.20 –50 VCC FALLING VS NORMALIZED TO 25 °C
VS , NORMALIZED THRESHOLD (V)
–25
0
25
50
75
100
125
–25
0
25
50
75
100
125
Tamb, TEMPERATURE (°C)
Tamb, TEMPERATURE (°C)
SL01344
SL01345
Figure 3. Supply current versus temperature.
Figure 4. Detection threshold versus temperature.
200 VS(HYS) , DETECTION HYSTERESIS (mV) I DS , OUTPUT FET CURRENT (mA) VS(HYS) = VSH – VSL (VCC RISING – VCC FALLING) 150
3.0 VDS = 0.5 V 2.5
2.0
100
1.5
1.0
N-CHANNEL
50
0.5
0 –50
0 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 Tamb, TEMPERATURE (°C) Tamb, AMBIENT TEMPERATURE (°C)
SL01346
SL01317
Figure 5. Detection hysteresis versus temperature.
Figure 6. Output FET current versus temperature.
5.0 TAMB = 25 °C TYPICAL CHARACTERISTIC. DETECTION AND RELEASE VOLTAGE POINTS DEPEND ON THE SPECIFIC DEVICE TYPE. VS(HYS) 2.0 DETECTION (VSL) RELEASE (VSH )
0.6 TAMB = 25 °C 0.5 I DD , SUPPLY CURRENT ( µA)
VOUT , OUTPUT VOLTAGE (V)
4.0
0.4
3.0
0.3
0.2
1.0
0.1
0 0 1.0 2 .0 3.0 4.0 5.0 6.0 VDD, SUPPL.