E5130 Datasheet, PDF (1/7 Pages) ATMEL Corporation – LOW VOLTAGE CMOS DRIVER CIRCUIT

Features
• 1.1 - 3.6 V Operating Voltage Range
• 4 Non-inverting, Tristatable Drivers for the Following Applications:
– Motor Driver for Bipolar Stepper Motors in Watch/Clock Applications
– Driver for Piezoelectric Transducers (Buzzer)
– LED Driver
– Line Driver for Medium Speed Applications
Applications
• Motor Driver
• Radio Controlled Clock/Watch
• Line Driver for Mini Computer, Laptop
• LED Driver
• Relay Driver
Benefits
• High Load Current at Low Supply Voltage
• Replaces Several Discrete Transistors
• Tri-state Operation Possible
Low Voltage
CMOS Driver
Circuit
e5130
Description
The e5130 contains 4 independent driver outputs with an ON resistance of typically
25 W (15 W) for the P-channel output transistors and typically 20 W (13 W) for the
N-channel output transistors at a supply voltage of 1.5 V (3 V). To obtain a fast transi-
tion of the outputs even for slow rise/fall time input signals, all digital inputs
(IN1 to IN4) have a Schmitt-trigger characteristic with a hysteresis of typically 50 mV. If
a higher driving capability is needed, all inputs and outputs may be connected in par-
allel. In this case the rise/fall time of the input signals IN1 to IN4 must be less than
200 ns. Due to the fast switching characteristic of the tri-statable output drivers, the
circuit is also suited as a low-voltage bus driver.
4730A–CLOCK–07/03
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