DS1817
032598 4/5
ABSOLUTE MAXIMUM RATINGS*
Voltage on VCC Pin Relative to Ground –0.5V to +7.0V
Voltage on RST Relative to Ground –0.5V to 5VCC +0.5V
Operating Temperature –40°C to +85°C
Storage Temperature –55°C to +125°C
Soldering Temperature 260°C for 10 seconds
* This is a stress rating only and functional operation of the device at these or any other conditions above those
indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS (–40°C to +85°C)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Supply Voltage VCC 0.0 5.5 V 1
DC ELECTRICAL CHARACTERISTICS (–40°C to +85°C; VCC = 1.2V to 5.5V)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Output Voltage @ 0–500 µA VOH VCC–0.5V VCC–0.1V V 1
Output Current @ 2.4V IOH 350 µA 2
Output Current @ 0.4V IOL +10 mA 2
Operating Current VCC < 5.5 ICC 28 35 µA 3
VCC Trip Point (DS1817–5) VCCTP 2.98 3.06 3.15 V 1
VCC T rip Point (DS1817–10) VCCTP 2.80 2.88 2.97 V 1
VCC T rip Point (DS1817–20) VCCTP 2.47 2.55 2.64 V 1
Output Capacitance COUT 10 pF
AC ELECTRICAL CHARACTERISTICS (–40°C to +85°C; VCC = 1.2V to 5.5V)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
RESET Active Time tRST 100 150 250 ms
VCC Detect to RST tRPD 2 5 µs
VCC Slew Rate
(VCCTP (MAX) to VCCTP (MIN)) tF300 µs 6
VCC Slew Rate
(VCCTP (MIN) to VCCTP (MAX)) tR0 ns
VCC Detect to RST tRPU 100 150 250 ms 4, 5
NOTES:
1. All voltages are referenced to ground.
2. Measured with VCC > 2.7V.
3. Measured with RST output open.
4. Measured with 2.7V > VCC > 3.3V.
5. tR = 5 µs.
6. The tF value is for reference in defining values for TRPD and should not be considered a requirement for proper
operation or use of the device.