TI1 LM195QML Lm195qml ultra reliable power transistor Datasheet

LM195QML
LM195QML Ultra Reliable Power Transistors
Literature Number: SNLS194
LM195QML
Ultra Reliable Power Transistors
General Description
The LM195 is a fast, monolithic power integrated circuit with
complete overload protection. This device, which acts as a
high gain power transistor, has included on the chip, current
limiting, power limiting, and thermal overload protection making it virtually impossible to destroy from any type of overload.
The inclusion of thermal limiting, a feature not easily available
in discrete designs, provides virtually absolute protection
against overload. Excessive power dissipation or inadequate
heat sinking causes the thermal limiting circuitry to turn off the
device preventing excessive heating.
The LM195 offers a significant increase in reliability as well
as simplifying power circuitry. In some applications, where
protection is unusually difficult, such as switching regulators,
lamp or solenoid drivers where normal power dissipation is
low, the LM195 is especially advantageous.
The LM195 is easy to use and only a few precautions need
be observed. Excessive collector to emitter voltage can destroy the LM195 as with any power transistor. When the
device is used as an emitter follower with low source
impedance, it is necessary to insert a 5.0k resistor in series
with the base lead to prevent possible emitter follower oscillations. Although the device is usually stable as an emitter
follower, the resistor eliminates the possibility of trouble without degrading performance. Finally, since it has good high
frequency response, supply bypassing is recommended.
Features
■
■
■
■
■
■
■
■
Internal thermal limiting
Greater than 1.0A output current
3.0 μA typical base current
500 ns switching time
2.0V saturation
Base can be driven up to 40V without damage
Directly interfaces with CMOS or TTL
100% electrical burn-in
Ordering Information
NS Part Number
SMD Part Number
NS Package Number
Package Description
LM195H/883
5962–8777801XA
H03B
3LD T0–5 Metal Can
Connection Diagram
TO-5 Metal Can Package
20156504
Bottom View
See NS Package Number H03B
© 2010 National Semiconductor Corporation
201565
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LM195QML Ultra Reliable Power Transistors
November 30, 2010
LM195QML
Schematic Diagram
20156511
1.0 Amp Lamp Flasher
Simplified Circuit
20156516
20156501
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2
LM195QML
Absolute Maximum Ratings (Note 1)
Collector to Emitter Voltage
Collector to Base Voltage
Base to Emitter Voltage (Forward)
Base to Emitter Voltage (Reverse)
Collector Current
Power Dissipation (Note 2)
Operating Temperature Range
H-Pkg
42V
42V
42V
20V
Internally Limited
Internally Limited
−55°C ≤ TA ≤ +125°C
−65°C ≤ TA ≤ +150°C
260°C
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
Thermal Resistance
θJA
H-Pkg; Still Air @ 0.5W
H-Pkg; 500LF/Min Air Flow @ 0.5W
192°C/W
66°C/W
θJC
H-Pkg @ 1.0W
29°C/W
Quality Conformance Inspection
Mil-Std-883, Method 5005 - Group A
Subgroup
Description
Temp (°C)
1
Static tests at
+25
2
Static tests at
+125
3
Static tests at
-55
4
Dynamic tests at
+25
5
Dynamic tests at
+125
6
Dynamic tests at
-55
7
Functional tests at
+25
8A
Functional tests at
+125
8B
Functional tests at
-55
9
Switching tests at
+25
10
Switching tests at
+125
11
Switching tests at
-55
12
Settling time at
+25
13
Settling time at
+125
14
Settling time at
-55
3
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LM195QML
LM195H/883 Electrical Characteristics
DC Parameter
Symbol
VCE
Collector to Emitter
Parameter
Operating Voltage
DC Parameter
Symbol
Conditions
IC ≤ IMax
Notes
Min
(Note 3)
Max
Unit
Subgroups
42
V
1, 2, 3
Max
Unit
Subgroups
1, 2, 3
Base to Emitter
Parameter
Conditions
Notes
Min
(Note 3)
42
V
1.2
A
1
1
A
2, 3
2
V
1, 2
2.5
V
3
IC ≤ IMax
5
µA
1, 2, 3
VCE = 42V, VBE = 0V
5
mA
1, 2, 3
BVBE
Breakdown Voltage
VCE ≤ 42V
ISC
Collector Current
VCE ≤ 7V
VSat
Saturation Voltage
IC = 1A
IB
Base Current
IQ
Quiescent Current
VBk
Breakdown Delta VBE
Thr
Thermal Response
0 ≤ VBE ≤ 42V,
VC = 46-42V,
IL = 50mA
-0.03
0.01
V
1
VC = 46-38V
-0.03
0.01
V
1
VC = 50-42V
-0.03
0.01
V
1
100µS
-10
100
mV
1
500µS
-10
70
mV
1
2mS
-10
50
mV
1
20mS
-10
10
mV
1
Min
Max
Unit
Subgroups
AC Parameter
Symbol
Parameter
Conditions
Notes
tON
Response Time
VI = 0-2V, RL = 36Ω,
V+ = 36V
1.8
µS
9, 10, 11
tOFF
Response Time
VI = 2-0V, RL = 36Ω,
V+ = 36V
1.8
µS
9, 10, 11
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), θJA (package
junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJmax - TA)/
θJA or the number given in the Absolute Maximum Ratings, whichever is lower.
Note 3: Parameter tested go−no−go only.
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4
LM195QML
Typical Performance Characteristics
Bias Current
Quiescent Current
20156535
20156536
Base Emitter Voltage
Base Current
20156538
20156537
Saturation Voltage
Response Time
20156539
20156540
5
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LM195QML
Response Time
10V Transfer Function
20156541
20156507
36V Transfer Function
Transconductance
20156508
20156509
Small Signal Frequency
Response
20156510
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LM195QML
Typical Applications
1.0 Amp Voltage Follower
20156512
*Solid Tantalum
Power PNP
Time Delay
20156513
*Protects against excessive base drive
**Needed for stability
20156514
7
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LM195QML
1.0 MHz Oscillator
20156515
1.0 Amp Negative Regulator
20156517
†Solid Tantalum
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8
LM195QML
1.0 Amp Positive Voltage Regulator
20156518
†Solid Tantalum
Fast Optically Isolated Switch
Optically Isolated Power Transistor
20156520
20156519
CMOS or TTL Lamp Interface
Two Terminal Current Limiter
20156522
20156521
9
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LM195QML
40V Switch
*Drive Voltage 0V to ≥ 10V ≤ 42V
20156523
6.0V Shunt Regulator with Crowbar
Two Terminal 100 mA Current Regulator
20156525
20156524
Low Level Power Switch
Power One-Shot
20156526
Turn ON = 350 mV
Turn OFF = 200 mV
20156527
T = R1C
R2 = 3R1
R2 ≤ 82k
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10
LM195QML
Emitter Follower
High Input Impedance AC Emitter Follower
20156528
*Need for Stability
20156529
Fast Follower
20156530
*Prevents storage with fast fall time square wave drive
Power Op Amp
20156531
*Adjust for 50 mA quiescent current
†Solid Tantalum
11
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LM195QML
6.0 Amp Variable Output Switching Regulator
20156532
*Sixty turns wound on Arnold Type A-083081-2 core.
**Four devices in parallel
†Solid tantalum
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12
Released
11/30/2010
Revision
A
Section
Changes
New Release, Corporate format
13
1 MDS data sheets converted into one Corp. data
sheet format. MNLM195-H Rev 0BL will be archived.
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LM195QML
Revision History Section
LM195QML
Physical Dimensions inches (millimeters) unless otherwise noted
TO-5 Metal Can Package
NS Package Number H03B
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14
LM195QML
Notes
15
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LM195QML Ultra Reliable Power Transistors
Notes
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