MIC58P42
8-Bit Serial-Input Protected Latched Driver
General Description
The MIC58P42 serial-input latched driver is a high-voltage
(80V), high-current (500mA) integrated circuit comprised of
eight CMOS data latches, a bipolar Darlington transistor
driver for each latch, and CMOS control circuitry for the
common STROBE, CLOCK, SERIAL DATA INPUT, and
OUTPUT ENABLE functions. Similar to the MIC5842,
additional protection circuitry supplied on this device
includes thermal shutdown, under voltage lockout (UVLO),
and overcurrent shutdown.
The bipolar/CMOS combination provides an extremely
low-power latch with maximum interface flexibility. The
MIC58P42 has open-collector outputs capable of sinking
500 mA and integral diodes for inductive load transient
suppression with a minimum output breakdown voltage
rating of 80V (50V sustaining). The drivers can be
operated with a split supply, where the negative supply is
down to –20V and may be paralleled for higher load
current capability.
With a 5V logic supply, the MIC58P42 will typically operate
at better than 5MHz. With a 12V logic supply, significantly
higher speeds are obtained. The CMOS inputs are
compatible with standard CMOS, PMOS, and NMOS
circuits. TTL circuits may require pull-up resistors. By
using the serial data output, drivers may be cascaded for
interface applications requiring additional drive lines.
Each of these eight outputs has an independent over
current shutdown of 500 mA. Upon over-current detection,
the affected channel will turn OFF until V
DD
is cycled or
the ENABLE/RESET pin is pulsed high. Current pulses
less than 2µs will not activate current shutdown.
Temperatures above 165°C will shut down the device. The
UVLO circuit prevents operation at low V
DD
; hysteresis of
0.5V is provided. See the MIC59P60 for a similar device
that additionally provides an error flag output.
Datasheets and support documentation are available on
Micrel’s web site at:
www.micrel.com.
Features
•
•
•
•
•
•
•
•
•
•
3.3 MHz Minimum Data-Input Rate
CMOS, PMOS, NMOS, and TTL Compatible
Internal Pull-Up/Pull-Down Resistors
Low Power CMOS Logic and Latches
High Voltage (80V) Current-Sink Outputs
Output Transient-Protection Diodes
Single or Split Supply Operation
Thermal Shutdown
Under-Voltage Lockout
Per-Output Over-Current Shutdown (500mA typical)
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 •
http://www.micrel.com
June 3, 2015
Revision 2.0
Micrel, Inc.
MIC58P42
Pin Description
Pin Number
DIP & SOIC
1, 9
2
3
4
5
6
7
8
10
11 – 18
Pin Number
PLCC
1, 11
2
3
5
6
7
9
10
12
13 – 20
Pin Name
V
EE
CLOCK
SERIAL DATA IN
V
SS
V
DD
SERIAL DATA OUT
STROBE
OUTPUT
ENABLE/RESET
K
OUT
N
Pin Function
Substrate. Most Negative voltage in the system connects here.
Serial Data Clock. A CLEAR input must also be clocked into the latches.
Serial Data Input pin.
Logic reference (Ground) pin.
Logic Positive Supply voltage.
Serial Data Output pin. (Flow–through).
Output Strobe pin. Loads output latches when high. Strobe is needed to clear
latch.
When Low, Outputs are active. When High, device is reset from a fault
condition.
Transient suppression diode's cathode common pin.
Open Collector outputs 8 through 1.
June 3, 2015
4
Revision 2.0
Micrel, Inc.
MIC58P42
Absolute Maximum Ratings
(1)
Output Voltage ............................................................. +80V
Output Voltage, V
CE(SUS)(3)
............................................ +50V
Logic Supply Voltage Range (V
DD
) ................... 4.5V to 15V
V
DD
with reference to V
EE
......................................... 25V
Emitter Supply Voltage (Substrate) (V
EE
) ..................... –20V
Input Voltage Range (V
IN
) ..................... –0.3V to V
DD
+0.3V
Operating Temperature Range (T
A
) .......... –65°C to +125°C
Storage Temperature Range (T
S
) ............. –60°C to +150°C
ESD Rating
(4)
................................................. ESD Sensitive
Operating Ratings
(2)
Package Power Dissipation, P
D
MIC58P42YN ............................................................ 1.82W
Derate above T
A
= +25°C ..................................... 18mW/°C
MIC58P42YV .............................................................. 1.4W
Derate above T
A
= +25°C ..................................... 14mW/°C
MIC58P42YWM .......................................................... 1.2W
Derate above T
A
= +25°C ..................................... 12mW/°C
Operating Temperature Range (T
A
) ............ –40°C to +85°C
Electrical Characteristics
(5)
T
A
= 25°C, V
DD
= 5V; V
SS
= V
EE
= 0V, unless otherwise noted.
Symbol
I
CEX
Parameter
Output Leakage Current
Condition
V
OUT
= 80V
V
OUT
= 80V, T
A
= +70°C
I
OUT
= 100mA
I
OUT
= 200mA
I
OUT
= 350mA
I
OUT
= 350mA, L = 2mH
50
1.0
V
DD
= 12V
V
DD
= 10V
V
DD
= 5.0V,
Note 6
V
DD
= 12V
V
DD
= 10V
V
DD
= 5.0V
All Drivers ON, V
DD
= 12V
All Drivers ON, V
DD
= 10V
All Drivers ON, V
DD
= 5.0V
Supply Current
One Driver ON, All others OFF, V
DD
= 12V
One Driver ON, All others OFF, V
DD
= 10V
One Driver ON, All others OFF, V
DD
= 5.0V
All Drivers OFF, V
DD
= 12V
All Drivers OFF, V
DD
= 10V
All Drivers OFF, V
DD
= 5.0V
50
50
50
10.5
8.5
3.5
200
300
600
6.4
6.0
4.6
3.1
2.9
2.3
2.6
2.4
1.9
10.0
9.0
7.5
4.5
4.5
3.6
4.2
3.6
3.0
mA
V
0.9
1.1
1.3
Min.
Typ.
Max.
50
100
1.1
1.3
1.6
Units
µA
V
CE(SAT)
Collector-Emitter Saturation
Voltage
Collector-Emitter Sustaining
Voltage
Input Voltage (Low)
Input Voltage (High)
V
V
CE(SUS)
V
IN(0)
V
IN(1)
V
R
IN
Input Resistance
kΩ
I
DD(ON)
I
DD(1 ON)
I
DD(OFF)
Notes:
1. Exceeding the absolute maximum ratings may damage the device.
2. The device is not guaranteed to function outside its operating ratings.
3. For inductive load applications.
4. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5kΩ in series with 100pF.
5. Specification for packaged product only.
6. Operation of these devices with standard TTL or DTL may require the use of appropriate pull-up resistors to insure a minimum logic “1”.
June 3, 2015
5
Revision 2.0
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