MIC5841BV [MICREL]
8-Bit Serial-Input Latched Drivers; 8位串行输入锁存驱动器
| 型号： | MIC5841BV |
| 厂家： | 
MICREL SEMICONDUCTOR |
| 描述： | 8-Bit Serial-Input Latched Drivers |
| 文件： | 总7页 (文件大小：165K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MIC5841/5842
8-Bit Serial-Input Latched Drivers
General Description
Features
Using BiCMOS technology, the MIC5841/5842 integrated
circuits were fabricated to be used in a wide variety of
peripheral power driver applications. The devices each have
an eight-bit CMOS shift register, CMOS control circuitry,
eight CMOS data latches, and eight bipolar current-sink
Darlington output drivers.
• 3.3 MHz Minimum Data-Input Rate
• CMOS, PMOS, NMOS, TTL Compatible
• Internal Pull-Up/Pull-Down Resistors
• Low-Power CMOS Logic and Latches
• High-Voltage Current-Sink Outputs
• Output Transient-Protection Diodes
• Single or Split Supply Operation
These two devices differ only in maximum voltage ratings.
The MIC5842 offers premium performance with a minimum
outputbreakdownvoltageratingof80V(50Vsustaining).The
driverscanbeoperatedwithasplitsupplywherethenegative
supply is down to –20V.
Ordering Information
The 500 mA outputs, with integral transient-suppression
diodes, are suitable for use with lamps, relays, solenoids and
other inductive loads.
Part Number
MIC5841BN
MIC5841BV
MIC5841BWM
MIC5842BN
MIC5842BV
MIC5842BWM
Temperature Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
Package
18-Pin Plastic DIP
20-Pin PLCC
These devices have improved speed characteristics. With a
5V logic supply, they will typically operate faster than 5 MHz.
With a 12V supply, significantly higher speeds are obtained.
The CMOS inputs are compatible with standard CMOS,
PMOS, and NMOS logic levels. TTL or DTL circuits may
require the use of appropriate pull-up resistors. By using the
serial data output, the drivers can be cascaded for interface
applications requiring additional drive lines.
18-Pin Wide SOIC
18-Pin Plastic DIP
20-Pin PLCC
18-Pin Wide SOIC
The MIC5840 family is available in DIP, PLCC, and SOIC
packages. Becauseoflimitationsonpackagepowerdissipa-
tion, the simultaneous operation of all drivers at maximum
rated current might require a reduction in duty cycle. A
copper-alloy lead frame provides for maximum package
power dissipation.
Functional Diagram
Pin Configuration
CLK
1
V
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
EE
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
K
1
2
3
4
5
6
7
8
SERIAL
SUB
6
DATA OUT
SERIAL
DATA IN
8-BIT SERIAL-PARALLEL SHIFT REGISTER
CLOCK
C
3
VDD
5
SERIAL DATA IN
VSS
V
4
LATCHES
STROBE
SS
V
SS
7
V
DD
V
DD
OUTPUT ENABLE
(ACTIVE LOW)
8
SERIAL DATA OUT
STROBE
MOS
Bipolar
ST
Sub
OUTPUT ENABLE
OE
9
1VEE
V
EE
SUB
10
18
17
16
15
14
13
12
11
K
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
(DIP, SOIC)
7-42
October 1998
MIC5841/5842
Micrel
Pin Configuration
(20-Pin PLCC)Top View.
Absolute Maximum Ratings (Note 1, 2, 3)
at 25°C Free-Air Temperature and V = 0V
SS
Output Voltage, V
(MIC5841)
(MIC5842)
50V
80V
CE
20
19
3
2
1
Output Voltage, V
(MIC5841) (Note 1)
(MIC5842)
35V
50V
15V
25V
CE(SUS)
18
17
16
15
NC
OUT 3
OUT 4
OUT 5
OUT 6
OUT 7
4
5
6
Logic Supply Voltage, V
DD
V
DD
with Reference to V
V
SS
EE
EE
Emitter Supply Voltage, V
Input Voltage Range, V
Continuous Output Current, I
OUT
Package Power Dissipation, P
Operating Temperature Range, T
Storage Temperature Range, T
–20V
+ 0.3V
500mA
1.82W
V
DD
MIC5842BV
–0.3V to V
DD
IN
SERIAL DATA OUT
NC
7
8
D (Note 2)
14
–55°C to +85°C
–65°C to +150°C
A
9
10
11
12
13
S
Note 1: For Inductive load applications.
Note 2: Derate at the rate of 18.2mW/°C above TA = 25°C (Plastic DIP)
Note 3: CMOS devices have input-static protection but are susceptible to
damage when exposed to extremely high static electrical
charges.
Electrical Characteristics at T = 25°C V = 5V, V = V = 0V (unless otherwise noted)
A
DD
SS
EE
Applicable
Devices
Limits
Max.
50
Characteristic
Symbol
Test Conditions
Min.
Unit
Output Leakage Current
I
MIC5841
V
OUT
V
OUT
V
OUT
V
OUT
= 50V
µA
CEX
= 50V, T = +70°C
100
50
A
MIC5842
Both
= 80V
= 80V, T = +70°C
100
1.1
A
Collector-Emitter
V
V
I
I
I
I
I
= 100mA
V
CE(SAT)
OUT
OUT
OUT
OUT
OUT
Saturation Voltage
= 200mA
1.3
= 350mA, V
= 7.0V
1.6
DD
Collector-Emitter
Sustaining Voltage
Input Voltage
MIC5841
MIC5842
Both
= 350mA, L = 2mH
= 350mA, L = 2mH
35
50
V
V
7
CE(SUS)
(Note 5)
V
V
0.8
IN(0)
Both
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
= 12V
10.5
8.5
3.5
50
IN(1)
= 10V
= 5.0V (See Note 4)
= 12V
Input Resistance
Supply Current
R
IN
Both
Both
Both
kΩ
= 10V
50
= 5.0V
50
I
All Drivers ON, V
All Drivers ON, V
All Drivers ON, V
= 12V
= 10V
= 5.0V
16
14
mA
DD(ON)
DD
DD
DD
8.0
2.9
2.5
1.6
50
I
All Drivers OFF, V
All Drivers OFF, V
All Drivers OFF, V
= 12V
= 10V
= 5.0V
DD(OFF)
DD
DD
DD
Clamp Diode
I
MIC5841
MIC5842
Both
V
V
= 50V
= 80V
µA
R
R
Leakage Current
50
R
Clamp Diode
V
F
I = 350mA
F
2.0
V
Forward Voltage
Note 4: Operation of these devices with standard TTL may require the use of appropriate pull-up resistors to insure an
input logic HIGH.
Note 5: Not 100% tested. Guaranteed by design.
October 1998
7-43
MIC5841/5842
Micrel
Electrical Characteristics T = –55°C, V = 5V, V = V = 0V (unless otherwise noted)
A
DD
SS
EE
Limits
Max.
50
Characteristic
Symbol
Test Conditions
Min.
Unit
µA
V
Output Leakage Current
Collector-Emitter
I
V
= 80V
CEX
OUT
V
I
I
I
= 100mA
1.3
CE(SAT)
OUT
OUT
OUT
Saturation Voltage
= 200mA
1.5
= 350mA, V
= 7.0V
1.8
DD
Input Voltage
V
V
0.8
V
IN(0)
V
V
V
V
V
= 12V
= 5.0V
= 12V
= 10V
= 5.0V
10.5
3.5
35
IN(1)
DD
DD
DD
DD
DD
Input Resistance
Supply Current
R
kΩ
mA
IN
35
35
I
All Drivers ON, V
All Drivers ON, V
All Drivers ON, V
= 12V
= 10V
= 5.0V
16
14
DD(ON)
DD
DD
DD
10
I
All Drivers OFF, V
= 12V
3.5
2.0
DD(OFF)
DD
DD
All Drivers OFF, V
= 5.0V
Electrical Characteristics T = +125°C, V = 5V, V = V = 0V (unless otherwise noted)
A
DD
SS
EE
Limits
Max.
500
1.3
Characteristic
Symbol
Test Conditions
Min.
Unit
µA
V
Output Leakage Current
Collector-Emitter
I
V
= 80V
CEX
OUT
V
I
I
I
= 100mA
CE(SAT)
OUT
OUT
OUT
Saturation Voltage
= 200mA
1.5
= 350mA, V
= 7.0V
1.8
DD
Input Voltage
V
V
0.8
V
IN(0)
V
V
V
V
V
= 12V
= 5.0V
= 12V
= 10V
= 5.0V
10.5
3.5
50
IN(1)
DD
DD
DD
DD
DD
Input Resistance
Supply Current
R
kΩ
mA
IN
50
50
I
All Drivers ON, V
All Drivers ON, V
All Drivers ON, V
= 12V
= 10V
= 5.0V
16
14
DD(ON)
DD
DD
DD
8
I
All Drivers OFF, V
All Drivers OFF, V
= 12V
2.9
1.6
100
100
DD(OFF)
DD
= 5.0V
DD
Clamp Diode Leakage
Current
I
MIC5841A
MIC5842A
V
V
= 50V
= 80V
µA
R
R
R
7-44
October 1998
MIC5841/5842
Micrel
CLOCK
A
D
B
DATA IN
STROBE
E
F
C
OUTPUT
ENABLE
G
OUT
N
Timing Conditions
A
(T = 25°C Logic Levels are V
and V
)
SS
V
= 5V
DD
DD
A. Minimum Data Active Time Before Clock Pulse (Data Set-Up Time) ........................................................................75 ns
B. Minimum Data Active Time After Clock Pulse (Data Hold Time)..............................................................................75 ns
C. Minimum Data Pulse Width .....................................................................................................................................150 ns
D. Minimum Clock Pulse Width ....................................................................................................................................150 ns
E. Minimum Time Between Clock Activation and Strobe .............................................................................................300 ns
F. Minimum Strobe Pulse Width...................................................................................................................................100 ns
G. Typical Time Between Strobe Activation and Output Transition .............................................................................500 ns
SERIAL DATA present at the input is transferred to the shift register on the logic “0” to logic “1” transition of the CLOCK input
pulse. On succeeding CLOCK pulses, the registers shift data information towards the SERIAL DATA OUTPUT. The SERIAL
DATA must appear at the input prior to the rising edge of the CLOCK input waveform.
InformationpresentatanyregisteristransferredtoitsrespectivelatchwhentheSTROBEishigh(serial-to-parallelconversion).
The latches will continue to accept new data as long as the STROBE is held high. Applications where the latches are bypassed
(STROBE tied high) will require that the ENABLE input be high during serial data entry.
7
When the ENABLE input is high, all of the output buffers are disabled (OFF) without affecting information stored in the latches
or shift register. With the ENABLE input low, the outputs are controlled by the state of the latches.
MIC5840 Family Truth Table
Serial
Data
Input
Shift Register Contents
Serial
Data Strobe
Output Input
Latch Contents
Output Contents
Clock
Input
Output
Enable
I
I
I
……
……
……
……
……
……
I
I
I
I
……
I
I
I
I
……
I
8
1
2
3
8
1
2
3
8
1
2
3
H
L
H
L
R
1
R
1
R
2
R
2
R
2
R
3
R
7
R
7
R
8
R
7
R
7
R
8
X
R
1
X
X
X
X
X
L
R
R
P
R
……
……
……
R
1
2
3
8
P
1
P
2
P
3
P
P
8
H
P
P
3
P
L
P
P
P
……
……
P
8
8
1
2
8
1
2
3
X
X
X
X
H
H
H
H
H
L = Low Logic Level
H = High Logic Level
X = Irrelevant
P = Present State
R = Previous State
October 1998
7-45
MIC5841/5842
Micrel
Typical Output Driver
K
OUT
N
7.2K
3K
V
EE
SUB
Typical Input Circuits
V
V
DD
DD
CLOCK
SERIAL
DATA IN
STROBE
OUTPUT
ENABLE
V
V
SS
SS
Maximum Allowable Duty Cycle (Plastic DIP)
V
DD
= 5.0V
Number of Outputs ON
(I
= 200mA
Max. Allowable Duty Cycle at Ambient Temperature of
OUT
V
DD
= 5.0V)
25°C
85%
40°C
72%
50°C
64%
60°C
55%
70°C
46%
8
7
6
5
4
3
2
1
97%
82%
73%
63%
53%
100%
100%
100%
100%
100%
100%
96%
85%
73%
62%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
88%
75%
100%
100%
100%
100%
93%
100%
100%
100%
V
DD
= 12V
Number of Outputs ON
(I
= 200mA
Max. Allowable Duty Cycle at Ambient Temperature of
OUT
V
DD
= 12V)
25°C
40°C
50°C
60°C
70°C
8
7
6
5
4
3
2
1
80%
91%
68%
77%
60%
68%
52%
59%
44%
50%
100%
100%
100%
100%
100%
100%
90%
79%
69%
58%
100%
100%
100%
100%
100%
95%
82%
69%
100%
100%
100%
100%
100%
100%
100%
100%
86%
100%
100%
100%
7-46
October 1998
MIC5841/5842
Micrel
Typical Applications
Relay/Solenoid Driver
MIC5841 Hammer Driver
MIC5842
+5V
+28V
+
µ
22
+5V -15V
+30V
1
2
3
4
5
6
7
8
9
18
1
18
17
16
15
14
13
12
11
10
SUB
SUB
CLOCK
2
3
4
5
6
7
8
9
17
16
15
14
13
12
11
10
C
CLOCK
SERIAL
DATA IN
DATA IN
V
V
SS
SS
28V
V
V
DD
DD
DATA OUT
STROBE
ST
ST
µ
0.1
OUTPUT
ENABLE
(ACTIVE LOW)
OE
OE
SUB
SUB
–15V
MIC5841 Solenoid Driver with Output Enable
MIC5841 Level Shifting Lamp Driver with Darlington
Emitters Tied to a Negative Supply
7
SERIAL DATA CLOCK
-9V
+5V
+12V
+
µ
22
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
SUB
SUB
C
CLOCK
SERIAL
DATA IN
V
V
SS
SS
ENABLE
+5V
0.1µ
µ
0.1
V
V
DD
DD
ST
ST
OE
OE
SUB
SUB
Solenoids: Guardian Electric LT4X7-C-12V
100µ
+
October 1998
7-47
MIC5841/5842
Micrel
Typical Applications, Continued
MIC5842 Negative/Positive Supply PIN Diode Driver Transmit/Receive Switch
CLOCK
DATA IN
STROBE
+75V
10k
15
1
2
3
4
5
6
18
17
16
15
14
13
12
11
10
Transmitter
SUB
RFC
1000p
D1
D2
C
Antenna
+75V
V
SS
10k
0.01µ
+5V
25
V
RFC
DD
1000p
RFC
+75V
10k
7 ST
8 OE
25
Receiver
1000p
+75V
RFC
100µ
+
D3
9
SUB
0.01µ
0.01µ
Diode
D2
(Latch 1) (Latch 5)
OFF ACTIVE
PIN Diodes: UM9651
D1
D3
(Latch 8)
OFF
–5V
Receive
Transmit ACTIVE OFF
ACTIVE
7-48
October 1998
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