EM5060 Datasheet, PDF (1/4 Pages) EM Microelectronic - MARIN SA – Low Voltage CMOS Driver Circuit

EM MICROELECTRONIC - MARIN SA
EM5060
Low Voltage CMOS Driver Circuit
Features
• Four low resistance output drivers for bipolar or
unipolar watch stepping motors.
• Low transversal transition current.
• Very low current consumption: 0.1 µA at 25°C.
• Two different output resistances programmable by
metal mask.
• Wide power supply voltage range: 1.1 to 3.5 V.
• Tristate input for applications as fast bus driver.
• ESD and latch-up protections on input and output
pads.
Functional Diagram
Rch =200Ω
M
Rch =200Ω
M
OUT1
VDD
OUT2 OUT3
OUT4
EM5060 V1
VSS
Description
The EM5060 (previously named H5060) is a low power
integrated circuit in HCMOS Silicon Gate Technology
designed to drive bipolar or unipolar stepping motors.
This device contains four identical and independent non-
inverting circuits which can be connected by metal mask
programation so as to obtain two identical non-inverting
circuits with a lower resistance output.
Each buffer is driven by a special cell which dephases the
P and N transistor signal input, for a minimization of the
transversal transition current.
A tristate input HIZ, with internal pulldown resistor
provides the high impedance state of the four outputs.
Application
• Motor driver for watch/clock application
• Bus drivers
• LED driver
HIZ
IN1
IN2 IN3
IN4
VDD
HIZ
Rch =200Ω
M
OUT1
OUT2
EM5060 V2
VSS
IN1
IN2
Pin Assignment
Pad
OUT4
OUT3
OUT2
OUT1
VDD
HIZ
IN1
IN2
IN3
IN4
VSS
Function
Output buffer n°4
Output buffer n°3
Output buffer n°2
Output buffer n°1
Positive supply voltage
Tri state input
Input buffer n°1
Input buffer n°2
Input buffer n°3
Input buffer n°4
Negative supply voltage
Fig. 1
VDD OUT1 OUT2 OUT3 OUT4
VDD NC OUT1 OUT2 NC
HIZ
EM5060 V1
HIZ
EM5060 V2
IN1 IN2 IN3 IN4 VSS
NC IN1 IN2 NC VSS
Fig. 2
Copyright  2002, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com