PT7A7511WEX Diodes Incorporated

PT7M1818/1813 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Supervisory Circuit Features Description The series are designed to monitor power supplies in P Highly accurate: 1.5% (25C) and digital systems. It provides excellent circuit Accurate power monitoring: 2.5V, 2.9V, 3.0V reliability and low cost by eliminating external (PT7M1818), and 4.1, 4.3, 4.6V (PT7M1813) components and adjustments. Operating voltage range: 1.0V ~ 5.5V This device performs a single function: it asserts a reset Operating temperature range: -40C to + 85C signal whenever the V supply voltage falls below a CC Detect voltage temperature characteristics: 2.5% preset threshold. Reset remains asserted for 200ms after TYP V has risen above the reset threshold. CC Efficient open-drain output with internal 5k pull-up PT7M1818/1813 are bidirectional output, allowing it to resistor be directly connected to P with bidirectional reset Maintains reset for 200ms after V returns to an in- CC inputs. tolerance condition Pin Configuration PT7M1818/1813 1 RST GND 3 2 VCC SOT23-3 Pin Description Name Type Description Reset Output and Pushbutton Input: RST is asserted when V drops below voltage threshold CC V . Active low. When other devices pull RST low, the reset condition occurs and will remain a I/O TH- RST reset timeout period after the external signal is off. GND P Ground V P Supply Voltage. CC 2014-08-0010 PT0190-7 09/11/14 1 PT7M1818/1813 Supervisory Circuit |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Maximum Ratings Note: Stresses greater than those listed under MAXIMUM o o Storage Temperature ............................................................-65 C to +150 C RATINGS may cause permanent damage to the o o Ambient Temperature with Power Applied.......................... -40 C to +85 C device. This is a stress rating only and functional Supply Voltage to Ground Potential (Vcc to GND) ..............-0.3V to +7.0V operation of the device at these or any other DC Input Voltage (All inputs except Vcc and GND)......-0.3V to V +0.3V CC conditions above those indicated in the operational DC Output Current (All outputs) ..........................................................30mA sections of this specification is not implied. Exposure Power Dissipation .......................................... 320mW (Depend on package) to absolute maximum rating conditions for extended periods may affect reliability. DC Electrical Characteristics (T = -40~85C, unless otherwise noted. Typical values are at T = +25C) A A Description Sym. Test Conditions Min Typ Max Unit Supply Voltage V 1.0 - 5.5 V CC V = 5.5V. No load. - - 12 A CC Supply Current I CC V = 3.6V. No load. - - 10 A CC (V ) (V ) TH- TH- +25 C V V TH- 0.985 1.015 Voltage Threshold V TH- (V ) (V ) TH- TH- V V -40 C~85 C TH- 0.975 1.025 * Hysteresis V V - V - 50 - mV HYS TH+ TH- I = 8mA, V = 5V - - 0.4 OH CC Output Output low V I = 4mA, V = 3V - - 0.3 V OL OH CC Driving I = -50A, V = 1V - - 0.09 OH CC Internal pull-up resistor Rp 3.75 5 6.25 k RST Note: V is voltage threshold when V falls from high to low. V is voltage threshold when V rises from low to high. TH- CC TH+ CC 2014-08-0010 PT0190-7 09/11/14 2