MIC58P01
Micrel
MIC58P01
8-Bit Parallel-Input Protected Latched Driver
Final Information
General Description
The MIC58P01 parallel-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 CLEAR, STROBE, and OUTPUT ENABLE functions.
Similar to the MIC5801, 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 MIC58P01
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 may be paralleled for higher load
current capability.
With a 5V logic supply, the MIC58P01 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.
Each of these eight outputs has an independent overcurrent
shutdown of 500mA. Upon current shutdown, 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 all outputs. The UVLO circuit disables the
outputs at low V
DD
; hysteresis of 0.5V is provided.
Features
•
•
•
•
•
•
•
•
•
4.4MHz Minimum Data Input Rate
High-Voltage, High-Current Outputs
Per-Output Overcurrent Shutdown (500mA typical)
Under Voltage Lockout
Thermal Shutdown
Output Transient Protection Diodes
CMOS, PMOS, NMOS, and TTL Compatible Inputs
Internal Pull-Down Resistors
Low-Power CMOS Latches
Ordering Information
Part Number
MIC58P01BN
MIC58P01BV
MIC58P01BWM
Temperature Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
Package
22-Pin Plastic DIP
28-Pin PLCC
24-Pin Wide SOIC
Functional Diagram
ENABLE/RESET
STROBE
V DD
CLEAR
ISHUTDOWN
IREF
IOUT / N
-
Pin Configuration
(DIP)
CLEAR
STROBE
IN1
IN2
OUTPUT
1
2
3
4
LATCHES
22
I
LIMIT
AND
THERMAL
SHUTDOWN
21
20
19
18
17
16
15
14
13
UVLO
12
OUTPUT
ENABLE/RESET
VDD
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
COMMON
+
2.2R
+
–
UVLO
THERMAL
SHUTDOWN
S
R
Q
COMMON
1.25V
R
IN3
IN4
5
6
7
8
9
IN
R1
70k
IN5
IN6
R2
3k
Circuitry below dashed line is
included in each of the 8 channels.
V EE
IN7
IN8 10
GROUND 11
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
October 1998
1
MIC58P01
MIC58P01
Micrel
Pin Configuration, Continued
OE/RESET
STROBE
CLEAR
Absolute Maximum Ratings:
(Note 1)
at +25°C Free-Air Temperature
Output Voltage, V
CE
Supply Voltage, V
DD
Input Voltage Range, V
IN
Package Power Dissipation:
MIC58P01BN
Derate above T
A
= +25°C
MIC58P01BV
Derate above T
A
= +25°C
MIC58P01BWM
Derate above T
A
= +25°C
Operating Temperature Range, T
A
Storage Temperature Range, T
S
80V
15V
–0.3V to V
DD
+ 0.3V
2.25W
22.5mW/°C
1.6W
16mW/°C
1.4W
14mW/°C
–55°C to +85°C
–65°C to +125°C
VDD
27
NC
NC
4
3
2
1
28
NC
26
25
24
23
IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
5
6
7
8
9
10
11
12
13
14
15
16
17
18
OUT 1
OUT 2
OUT 3
OUT 4
OUT 5
OUT 6
OUT 7
MIC58P01BV
22
21
20
19
COMMON
MIC58P01BV, 28–Pin PLCC
GROUND
Note 1: Micrel CMOS devices have input-static protection but are
susceptible to damage when exposed to extremely high static
electrical charges.
OUT 8
NC
IN 8
NC
NC
Typical Input
V DD
GROUND
CLEAR
STROBE
IN1
IN2
IN3
IN4
IN5
IN6
1
2
3
4
5
6
24
23
22
21
20
19
NC
OUTPUT
ENABLE/RESET
VDD
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
COMMON
IN
MIC58P01BWM
7
8
9
18
17
16
15
14
13
Allowable Output Current As A Function
of Duty Cycle
ALLOWABLE COLLECTOR CURRENT IN mA AT 50°C
MIC58P01BN
450
400
350
300
250
200
150
100
0
NUMBER OF OUTPUTS
CONDUCTING
SIMULTANEOUSLY
10
20
30
40
50
60
70
80
90
100
6
7
8
4
5
3
1 or 2
IN7 10
IN8 11
GROUND 12
MIC58P01BWM, 24–Pin SOIC
(not pin compatible with MIC5801BWM)
PERCENT DUTY CYCLE
Pin Description
Pin
(DIP)
1
2
3–10
11
12
13–20
21
22
Name
CLEAR
STROBE
INPUT
GROUND
COMMON
OUTPUT
V
DD
OUTPUT
ENABLE/RESET
Description
Resets all Latches and turns all outputs OFF (open).
Input Strobe Pin. Loads output latches when High.
Parallel Inputs, 1 through 8
Logic and Output Ground pin.
Transient suppression diode common cathode pin.
Parallel Outputs, 8 through 1.
Logic Supply voltage.
When Low, Outputs are active. When High, outputs are inactive and device is reset
from a fault condition. An undervoltage condition emulates a high OE input.
2
October 1998
MIC58P01
MIC58P01
Micrel
Electrical Characteristics
(Note 3)
:
at T
A
= +25°C, V
DD
= 5V (unless otherwise noted)
Limits
Characteristic
Output Leakage Current
Collector-Emitter
Saturation Voltage
Input Voltage
V
IN(0)
V
IN(1)
V
DD
= 12V
V
DD
= 10V
V
DD
= 5.0V (See Note)
Input Resistance
R
IN
V
DD
= 12V
V
DD
= 10V
V
DD
= 5.0V
Supply Current
I
DD(ON)
(One output
active)
I
DD(ON)
(All outputs
active)
I
DD(OFF)
(Total)
Clamp Diode
Leakage Current
Overcurrent Threshold
Start-Up Voltage
Minimum Operating V
DD
Clamp Diode Forward Voltage
Thermal Shutdown
Thermal Shutdown Hystersis
NOTE 1:
NOTE 2:
NOTE 3:
Symbol
I
CEX
V
CE(SAT)
Test Conditions
V
CE
= 80V, T
A
= +25°C
V
CE
= 80V, T
A
= +70°C
I
C
= 100mA
I
C
= 200mA
I
C
= 350mA
Min.
Typ.
Max. Units
50
100
µA
V
0.9
1.1
1.3
10.5
8.5
3.5
50
50
50
200
300
600
3.3
3.1
2.4
6.4
6.0
4.7
3.0
2.2
1.1
1.3
1.6
1.0
V
kΩ
V
DD
= 12V, Outputs Open
V
DD
= 10V, Outputs Open
V
DD
= 5.0V, Outputs Open
V
DD
= 12V, Outputs Open
V
DD
= 10V, Outputs Open
V
DD
= 5.0V, Outputs Open
V
DD
= 12V, Outputs Open, Inputs = 0V
V
DD
= 5.0V, Outputs Open, Inputs = 0V
V
R
= 80V, T
A
= +25°C
V
R
= 80V, T
A
= +70°C
Per Output
Note 2.
I
F
= 350mA
3.5
3.0
4.5
4.5
3.6
10.0
9.0
7.5
4.5
3.6
50
100
mA
mA
mA
µA
mA
I
R
I
LIM
V
SU
V
DD MIN
V
F
500
4.0
3.5
1.7
165
10
4.5
4.0
2.0
V
V
V
°C
°C
Operation of these devices with standard TTL or DTL may require the use of appropriate pull-up resistors to insure a minimum logic “1”.
Under-Voltage Lockout is guaranteed to release device at no more than 4.5V, and disable the device at no less than 3.0V.
Specification for packaged product only.
Truth Table
Output
IN
N
0
1
X
X
X
X
Strobe
1
1
X
X
0
0
Clear
0
0
1
X
0
0
Enable
0
0
X
1
0
0
X
X
X
X
ON
OFF
OUT
N
t–1
t
OFF
ON
OFF
OFF
ON
OFF
Information present at an input is transferred to its latch when
the STROBE is high. A high CLEAR input will set all latches
to the output OFF condition regardless of the Data or STROBE
input levels. A high OUTPUT ENABLE will set all outputs to
the OFF condition, regardless of any other input conditions.
When the OUTPUT ENABLE is low, the outputs depend on
the state of their respective latches. If current shutdown is
activated, the OUTPUT ENABLE must be pulsed high to
restore operation. Over temperature faults are not latched
and require no reset pulse.
X = Irrelevant
t–1 = previous output state
t = present output state
October 1998
3
MIC58P01
MIC58P01
Micrel
CLEAR
F
STROBE
OUTPUT
ENABLE
A
C
B
C
B
A
C
B
G
IN N
D
OUT N
E
E
G
Timing Conditions
(T
A
A.
B.
C.
D.
E.
F.
G.
= +25°C, Logic Levels are V
DD
and Ground, V
DD
= 5V)
Minimum data active time before strobe enabled (data set-up time) ....................................................................... 50ns
Minimum data active time after strobe disabled (data hold time) ............................................................................. 50ns
Minimum strobe pulse width .................................................................................................................................. 125 ns
Typical time between strobe activation and output on to off transition ................................................................... 500ns
Typical time between strobe activation and output off to on transition ................................................................... 500ns
Minimum clear pulse width ..................................................................................................................................... 300ns
Minimum data pulse width ..................................................................................................................................... 225 ns
Typical Characteristic Curves
SATURATION VOLTAGE (V)
SUPPLY CURRENT (mA)
1.6
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
6
5
4
CURRENT SHUTDOWN DELAY (µS)
Output Saturation
Voltage vs. Temperature
I
L
= 350mA
Supply Current
vs. Temperature
7
6
5
4
3
2
1
Current Shutdown
Delay vs. Output Current
ALL OUTPUTS ON
V
DD
= 5V
V
DD
= 5V to 12V
3
2
1
0
–50
0
50
100
TEMPERATURE (°C)
150
ALL OUTPUTS OFF
V
DD
= 5V
V
DD
= 12V
0.5
0.6
0.7
0.8
OUTPUT CURRENT (A)
0.9
I
L
= 100mA
0.7
0.6
–50
0
50
100
TEMPERATURE (°C)
150
0
0.4
Current Shutdown
Threshold vs. Temperature
0.60
SHUTDOWN THRESHOLD (A)
8
Supply Current
vs. Temperature
OUTPUT DELAY (nS)
260
240
Output Delay
vs. Supply Voltage
R
L
= 50Ω
0.55
V
DD
= 5V
0.50
0.45
0.40
0.35
–50
V
DD
= 12V
SUPPLY CURRENT (mA)
7
6
5
4
3
2
1
0
–50
0
50
100
TEMPERATURE (°C)
150
ALL OUTPUTS OFF
V
DD
= 12V
ALL OUTPUTS ON
220
200
180
160
140
120
100
5 6 7 8 9 10 11 12 13 14 15
SUPPLY VOLTAGE (V)
T
D
ON
T
D
OFF
0
50
100
TEMPERATURE (°C)
150
MIC58P01
4
October 1998
MIC58P01
Micrel
Typical Application
+5V
0.1µ
1
STROBE
INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
INPUT 6
INPUT 7
INPUT 8
2
3
4
5
6
7
8
9
10
11
LATCHES
+12V
22µ
+
22
21
K1
20
K2
19
K3
18
K4
17
K5
16
K6
15
K7
14
K8
13
12
Relays: Guardian Electric 1725-1C-12D
MIC58P01 Protected Relay Driver
October 1998
5
MIC58P01
嵌入式系统
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