L296P [STMICROELECTRONICS]
HIGH CURRENT SWITCHINGREGULATORS; HIGH CURRENT SWITCHINGREGULATORS
| 型号： | L296P |
| 厂家： | 
ST |
| 描述： | HIGH CURRENT SWITCHINGREGULATORS |
| 文件： | 总22页 (文件大小：287K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
L296
L296P
HIGH CURRENT SWITCHING REGULATORS
4 A OUTPUT CURRENT
5.1 V TO 40 V OUTPUT VOLTAGERANGE
0 TO 100 % DUTY CYCLE RANGE
.
.
.
.
.
.
.
.
.
.
±
PRECISE ( 2 %) ON-CHIP REFERENCE
SWITCHING FREQUENCY UP TO 200 KHz
VERYHIGH EFFICIENCY (UP TO 90 %)
VERYFEW EXTERNAL COMPONENTS
SOFT START
RESET OUTPUT
EXTERNAL PROGRAMMABLE LIMITING
CURRENT (L296P)
CONTROL CIRCUIT FOR CROWBAR SCR
INPUTFOR REMOTE INHIBIT AND
SYNCHRONUS PWM
Multiwatt
(15 lead)
.
.
ORDERING NUMBERS :
L296 (Vertical)
L296P (Vertical)
L296HT (Horizontal)
L296PHT (Horizontal)
THERMAL SHUTDOWN
.
DESCRIPTION
TheL296andL296Parestepdownpowerswitching
regulatorsdelivering 4 A at a voltagevariable from
5.1 V to 40 V.
TheL296andL296Paremountedina 15-leadMul-
tiwatt plasticpowerpackageandrequiresvery few
external components.
Efficient operation at switching frequencies up to
200 KHz allows a reduction in the size and cost of
external filter components. A voltage sense input
and SCR drive output are provided for optional
crowbar overvoltage protection with an external
SCR.
Featuresof thedevicesincludesoft start,remotein-
hibit, thermal protection, a reset output for micro-
processors and a PWM comparator input for syn-
chronizationin multichip configurations.
The L296Pincudesexternalprogrammablelimiting
current.
PIN CONNECTION (top view)
1/22
June 2000
L296 - L296P
PIN FUNCTIONS
N
°
Name
Function
1
CROWBAR INPUT
Voltage Sense Input for Crowbar Overvoltage Protection. Normally connected to the
feedback input thus triggering the SCR when V out exceeds nominal by 20 %. May
also monitor the input and a voltage divider can be added to increase the threshold.
Connected to ground when SCR not used.
2
3
4
OUTPUT
Regulator Output
SUPPLY VOLTAGE Unrergulated Voltage Input. An internal Regulator Powers the L296s Internal Logic.
CURRENT LIMIT
A resistor connected between this terminal and ground sets the current limiter
threshold. If this terminal is left unconnected the threshold is internally set (see
electrical characteristics).
5
SOFT START
Soft Start Time Constant. A capacitor is connected between this terminal and ground
to define the soft start time constant. This capacitor also determines the average
short circuit output current.
6
7
INHIBIT INPUT
SYNC INPUT
TTL – Level Remote Inhibit. A logic high level on this input disables the device.
Multiple L296s are synchronized by connecting the pin 7 inputs together and omitting
the oscillator RC network on all but one device.
8
9
GROUND
Common Ground Terminal
FREQUENCY
COMPENSATION
A series RC network connected between this terminal and ground determines the
regulation loop gain characteristics.
10
11
12
13
14
FEEDBACK INPUT
The Feedback Terminal on the Regulation Loop. The output is connected directly to
this terminal for 5.1V operation ; it is connected via a divider for higher voltages.
OSCILLATOR
A parallel RC networki connected to this terminal determines the switching frequency.
This pin must be connected to pin 7 input when the internal oscillator is used.
RESET INPUT
RESET DELAY
RESET OUTPUT
Input of the Reset Circuit. The threshold is roughly 5 V. It may be connected to the
feedback point or via a divider to the input.
A capacitor connected between this terminal and ground determines the reset signal
delay time.
Open collector reset signal output. This output is high when the supply is safe.
15 CROWBAR OUTPUT SCR gate drive output of the crowbar circuit.
BLOCK DIAGRAM
2/22
L296 - L296P
CIRCUIT OPERATION
(refer to the block diagram)
0.4V. The output stage is thus re-enabled and the
output voltage rises under control of the soft start
network.If the overload conditionis still presentthe
limiter will trigger again when the thresholdcurrent
is reached. The averageshort circuit current is lim-
ited to a safevalue by the dead time introduced by
the soft start network.
The L296 and L296P are monolithic stepdown
switching regulatorsproviding outputvoltages from
5.1V to 40V and delivering 4A.
Theregulationloopconsistsofasawtoothoscillator,
erroramplifier,comparatorandtheoutputstage.An
error signal is produced by comparing the output
voltagewithaprecise5.1Von-chipreference(zener
zaptrimmedto ± 2%).Thiserror signalis thencom-
paredwith the sawtoothsignalto generatethefixed
frequencypulsewidthmodulatedpulseswhichdrive
theoutputstage.Thegainandfrequencystabilityof
theloopcan beadjustedby anexternalRCnetwork
connectedtopin9. Closingtheloopdirectlygivesan
outputvoltageof5.1V.Highervoltagesareobtained
by inserting a voltagedivider.
The reset circuit generates an output signal when
the supply voltage exceeds a threshold pro-
grammed by an externaldivider.Thereset signal is
generatedwith a delay time programmed by an ex-
ternal capacitor. When the supply falls below the
threshold the reset output goes low immediately.
The reset outputis an open collector.
The scrowbar circuit sensesthe outputvoltage and
the crowbar outputcan provide a currentof 100mA
to switch onan externalSCR. This SCR is triggered
when the output voltage exceeds the nominal by
20%. There is no internal connection between the
outputand crowbarsenseinput thereforethe crow-
bar can monitor eitherthe inputor the output.
Output overcurrents at switch on are prevented by
the soft start function. The error amplifier output is
initially clamped by the externalcapacitor Css and
allowed to rise, linearly, as thiscapacitoris charged
by a constantcurrent source.
A TTL-levelinhibitinputis providedforapplications
suchasremoteon/offcontrol.Thisinputis activated
by highlogic levelanddisablescircuit operation.Af-
ter an inhibit the L296 restarts under control of the
soft start network.
Outputoverloadprotectionis providedintheformof
a current limiter. The load current is sensed by an
internal metal resistor connected to a comparator.
When the load current exceeds a preset threshold
this comparator sets a flip flop which disables the
outputstageanddischargesthesoftstartcapacitor.
A second comparator resets the flip flop when the
voltage across the soft start capacitor has fallen to
The thermal overload circuit disables circuit opera-
tion when the junction temperature reaches about
150 °C andhas hysteresisto preventunstablecon-
ditions.
Figure 1 : Reset OutputWaveforms
3/22
L296 - L296P
Figure 2 : Soft Start Waveforms
Figure 3 : Current Limiter Waveforms
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
50
Unit
V
Vi
Vi – V2
V2
Input Voltage (pin 3)
Input to Output Voltage Difference
Output DC Voltage
50
V
– 1
– 7
V
V
Output Peak Voltage at t = 0.1 sec f = 200KHz
µ
V1, V12
V15
Voltage at Pins 1, 12
Voltage at Pin 15
10
V
V
V
V
15
V4, V5, V7, V9, V13 Voltage at Pins 4, 5, 7, 9 and 13
5.5
V10, V6
V14
Voltage at Pins 10 and 6
Voltage at Pin 14 (I14 ≤ 1 mA)
Pin 9 Sink Current
7
Vi
I9
1
mA
mA
mA
W
I11
Pin 11 Source Current
20
50
I14
Pin 14 Sink Current (V14 < 5 V)
Ptot
Power Dissipation at Tcase 90 C
20
≤
°
Tj, Tstg
Junction and Storage Temperature
– 40 to 150
C
°
4/22
L296 - L296P
THERMAL DATA
Symbol
Parameter
Value
3
Unit
Rth j-case
Rth j-amb
Thermal Resistance Junction-case
Max.
Max.
°C/W
Thermal Resistance Junction-ambient
35
C/W
°
ELECTRICAL CHARACTERISTICS
(refer to the test circuits Tj = 25oC, Vi = 35V, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit Fig.
DYNAMIC CHARACTERISTICS (pin 6 to GND unless otherwise specified)
Vo
Vi
Output Voltage Range
Input Voltage Range
Input Voltage Range
Line Regulation
Vi = 46V, Io = 1A
Vref
9
40
46
46
50
V
V
4
4
4
4
4
Vo = Vref to 36V, Io 3A
≤
Vi
Note (1), Vo = VREF to 36V Io = 4A
Vi =10V to 40V, Vo = Vref, Io = 2A
V
∆Vo
15
mV
mV
V
∆
Load Regulation
Vo = Vref
o
Io = 2A to 4A
Io = 0.5A to 4A
10
15
30
45
Vref
Internal Reference Voltage (pin 10) Vi = 9V to 46V, Io = 2A
5
5.1
0.4
5.2
V
4
∆ Vref
Average Temperature Coefficient
of Reference Voltage
Tj = 0°C to 125°C, Io = 2A
mV/°C
T
∆
Vd
Dropout Voltage Between Pin 2
and Pin 3
Io = 4A
Io = 2A
2
1.3
3.2
2.1
V
V
4
4
I2L
Current Limiting Threshold (pin 2)
L296 - Pin 4 Open,
Vi = 9V to 40V, Vo = Vref to 36V
4.5
7.5
A
4
L296P - Vi = 9V to 40V, Vo = Vref
Pin 4 Open
A
4
5
2.5
7
4.5
RIim = 22k
Ω
ISH
Input Average Current
Efficiency
Vi = 46V, Output Short-circuited
60
100
mA
%
4
4
η
Io = 3 A
Vo = Vref
Vo = 12V
75
85
SVR
f
Supply Voltage Ripple Rejection
Switching Frequency
V = 2 Vrms, fripple = 100Hz
50
85
56
dB
4
∆
i
Vo = Vref, Io = 2A
100 115
0.5
kHz
%
4
4
f
Voltage Stability of Switching
Frequency
Vi = 9V to 46V
∆
V
∆
i
∆ f
Temperature Stability of Switching Tj = 0°C to 125°C
Frequency
1
%
4
T
∆
j
fmax
Maximum Operating Switching
Frequency
Vo = Vref, Io = 1A
Note (2)
200
kHz
–
–
Tsd
Thermal Shutdown Junction
Temperature
135 145
C
°
DC CHARACTERISTICS
I3Q
Quiescent Drain Current
Vi = 46V, V7 = 0V, S1 : B, S2 : B
mA
mA
V6 = 0V
V6 = 3V
66
30
85
40
– I2L
Output Leakage Current
Vi = 46V, V6 = 3V, S1 : B, S2 : A,
V7 = 0V
2
Note
(1) : Using min. 7 Aschottky diode.
(2) : Guaranteed by design, not 100 % testedin production.
5/22
L296 - L296P
ELECTRICAL CHARACTERISTICS
(continued)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit Fig.
SOFT START
I5 so
I5 si
Source Current
Sink Current
V6 = 0V, V5 = 3V
V6 = 3V, V5 = 3V
80
50
130
70
150
120
A
A
6b
6b
µ
µ
INHIBIT
Input Voltage
Low Level
Vi = 9V to 46V, V7 = 0V,
S1 : B, S2 : B
V
6a
6a
V6L
V6H
– 0.3
2
0.8
5.5
High Level
Input Current
with Input Voltage
Low Level
Vi = 9V to 46V, V7 = 0V,
S1 : B, S2 : B
V6 = 0.8V
A
µ
– I6L
– I6H
10
3
High Level
V6 = 2V
ERROR AMPLIFIER
V9H
V9L
I9 si
High Level Output Voltage V10 = 4.7V, I9 = 100µA,
3.5
V
6c
6c
S1 : A, S2 : A
Low Level Output Voltage V10 = 5.3V, I = 100 A,
0.5
V
µ
9
S1 : A, S2 : E
Sink Output Current
V10 = 5.3V, S1 : A, S2 : B
V10 = 4.7V, S1 : A, S2 : D
100
100
150
150
A
6c
6c
µ
– I9 so Source Output Current
µA
I10
Input Bias Current
V10 = 5.2V, S1 : B
V10 = 6.4V, S1 : B, L296P
2
2
10
10
A
6c
6c
µ
µA
Gv
DC Open Loop Gain
V9 = 1V to 3V, S1 : A, S2 : C
46
55
dB
6c
OSCILLATOR AND PWM COMPARATOR
– I7
Input Bias Current of
PWM Comparator
V7 = 0.5V to 3.5V
5
A
µ
6a
– I11
RESET
V12 R
Oscillator Source Current
V11 = 2V, S1 : A, S2 : B
5
mA
Rising Threshold Voltage
Falling Threshold Voltage
Delay Thershold Voltage
Vref
Vref
Vref
V
V
V
6d
6d
6d
-150mV -100mV -50mV
Vi = 9V to 46V,
S1 : B, S2 : B
V12 F
4.75
4.3
Vref
Vref
-150mV -100mV
V13 D
V13 H
4.5
4.7
V12 = 5.3V, S1 : A, S2 : B
Delay Threshold Voltage
Hysteresis
100
mV 6d
V14 S
I12
Output Saturation Voltage I14 = 16mA, V12 = 4.7V, S1, S2 : B
0.4
3
V
6d
6d
6d
Input Bias Current
V12 = 0V to Vref, S1 : B, S2 : B
1
A
µ
V13 = 3V, S1 : A, S2 : B
V12 = 5.3V
– I13 so Delay Source Current
I13 si
70
10
110
140
100
A
µ
Delay Sink Current
V12 = 4.7V
mA
I14
Output Leakage Current
Vi = 46V, V12 = 5.3V, S1 : B, S2 : A
µA
6d
CROWBAR
V1
Input Threshold Voltage
S1 : B
5.5
70
6
6.4
0.4
V
V
6b
6b
V15
Output Saturation Voltage Vi = 9V to 46V, Vi = 5.4V,
I15 = 5mA, S1 : A
0.2
I1
Input Bias Current
V1 = 6V, S1 : B
10
A
6b
µ
– I15
Output Source Current
Vi = 9V to 46V, V1 = 6.5V,
V15 = 2V, S1 : B
100
mA 6b
6/22
L296 - L296P
Figure 4 : DynamicTest Circuit
C7, C8 : EKR (ROE)
L1 : L = 300 µH at 8 A
Core type : MAGNETICS58930 - A2 MPP
N° turns: 43 Wire Gauge : 1 mm (18AWG) COGEMA946044
(*) Minimum suggested value (10 µF) to avoid oscillations. Ripple consideration leads to typicalvalue of 1000 µF or higher.
Figure 5 : PC. Board and ComponentLayoutof the Circuit of Figure 4 (1:1scale)
7/22
L296 - L296P
Figure 6 : DC Test Circuits.
Figure 6a.
Figure 6b.
Figure 6c.
1 - Set V10 FOR V9 = 1 V
2 - ChangeV10 to obtainV9 = 3 V
DV9
2V
3 - GV
=
=
V
10
V
10
∆
∆
Figure 6d.
8/22
L296 - L296P
Figure 7 : QuienscentDrain Current vs. Supply
Figure 8 : QuienscentDrain Current vs. Supply
Voltage(0 % Duty Cycle - see fig. 6a).
Voltage(100 % Duty Cycle see fig. 6a).
Figure 9 :
Figure 10 :
QuiescentDrain Current vs. Junction
Temperature(0 % Duty Cycle -
see fig. 6a).
QuiescentDrain Current vs. Junction
Temperature(100 % DutyCycle -
see fig. 6a).
Figure 11 : ReferenceVoltage (pin 10) vs. VI
Figure 12 : ReferenceVoltage(pin 10)vs.Junction
(see fig. 4).
Temperature(see fig. 4).
9/22
L296 - L296P
Figure 13 : OpenLoop Frequencyand Phase
Responseof ErrorAmplifier
(seefig. 6c).
Figure 14 : SwitchingFrequency vs. Input
Voltage(see fig. 4).
Figure 15 : Switching Frequencyvs. Junction
Figure 16 : Switching Frequencyvs. R1
Temperature(see fig. 4).
(seefig. 4).
Figure 17 : LineTransient Response(see fig. 4).
Figure 18 : Load Transient Response(see fig. 4).
10/22
L296 - L296P
Figure 19 : SupplyVoltage Ripple Rejection vs.
Figure 20 : DropoutVoltage BetweenPin 3 and
Frequency(see fig. 4).
Pin2 vs. Current at Pin 2.
Figure 21 : DropoutVoltage Between Pin 3 and
Figure 22 : PowerDissipation Derating Curve.
Pin2 vs. JunctionTemperature.
Figure 23 : PowerDissipation (device only) vs.
Figure 24 : PowerDissipation (device only) vs.
InputVoltage.
Inputvoltage.
11/22
L296 - L296P
Figure 25 : PowerDissipation (device only) vs.
Figure 26 : PowerDissipation (device only) vs.
OutputVoltage (see fig. 4).
OutputVoltage(see fig. 4).
Figure27: VoltageandCurrentWaveformsatPin2
Figure 28 : Efficiencyvs. OutputCurrent.
(see fig. 4).
Figure 29 : Efficiencyvs. OutputVoltage.
Figure 30 : Efficiencyvs. OutputVoltage.
12/22
L296 - L296P
Figure 31 : CurrentLimiting Threshold vs. Rpin 4
Figure 32 : CurrentLimitingThreshold vs. Junction
(L296P only).
Temperature.
Figure 33 : CurrentLimiting Threshold vs.
Supply Voltage.
13/22
L296 - L296P
APPLICATION INFORMATION
Figure 34 : Typical ApplicationCircuit.
(*) Minimum value (10 µF) to avoid oscillations ; rippleconsideration leads to typical value of 1000 µF or higher L1 : 58930- MPP COGEMA
946044 ; GUP 20 COGEMA946045
SUGGESTED INDUCTOR
(L1)
Core Type
Magnetics 58930 – A2MPP
No Turns
Wire Gauge
1.0 mm
Air Gap
43
65
40
–
1 mm
–
Thomson GUP 20 x 16 x 7
0.8 mm
Siemens EC 35/17/10 (B6633& – G0500 – X127)
2 x 0.8 mm
VOGT 250 H Toroidal Coil, Part Number 5730501800
µ
Resistor Values for Standard Output Voltages
V0
R8
R7
12 V
15 V
18 V
24 V
4.7 KΩ
6.2 KΩ
4.7 K
9.1 K
Ω
Ω
4.7 K
12 K
Ω
18 K
Ω
Ω
4.7 K
Ω
14/22
L296 - L296P
Figure 35 : P.C. Board and ComponentLayoutof the Circuit of fig. 34 (1:1 scale)
SELECTION OF COMPONENT VALUES (see fig. 34)
Allowed Rage
Recommended
Value
Component
Purpose
Notes
Min.
Max.
R1
R2
–
Set Input Voltage
Threshold for Reset.
–
Vi min
5
R1/R2
1
−
100 k
220k
Ω
Ω
If output voltage is sensed R1 and
R2 may be limited and pin 12
connected to pin 10.
R3
R4
4.3 kΩ
10 kΩ
Sets Switching Frequency 1 kΩ 100kΩ
Pull-down Resistor
22kΩ May be omitted and pin 6 grounded
if inhibit not used.
R5
R6
15 k
Frequency Compensation 10k
Ω
Ω
Collector Load For Reset
Output
VO
Omitted if reset function not used.
0.05A
R7
R8
–
Divider to Set Output
Voltage
–
–
–
1kΩ
VO − VREF
R7/R8 =
-
4.7 kΩ
VREF
Riim
–
Sets Current Limit Level
7.5kΩ
If Riim is omitted and pin 4 left open
the current limit is internally fixed.
C1
C2
C3
C4
10
F
Stability
2.2 F
µ
µ
2.2
F
Sets Reset Delay
Sets Switching Frequency
Soft Start
–
–
3.3nF
–
Omitted if reset function not used.
µ
2.2 nF
1 nF
1 µF
2.2 µF
Also determines average short
circuit current.
C5
C6
33 nF
Frequency Compensation
390 pF
High Frequency
Compensation
–
–
–
–
Not required for 5 V operation.
C7, C8
L1
100
300
F
Output Filter
µ
H
100 H
µ
µ
Q1
Crowbar Protection
The SCR must be able to withstand
the peak discharge current of the
output capacitor and the short
circuit current of the device.
D1
Recirculation Diode
7A Schottky or 35 ns trr Diode.
15/22
L296 - L296P
Figure 36 : A Minimal 5.1 V Fixed Regulator. Very Few Componentsare Required.
Figure 37 : 12 V/10 A PowerSupply.
16/22
L296 - L296P
Figure 38 : ProgrammablePower Supply.
V o = 5.1to 15 V
I
o = 4 Amax. (min. load current = 100 mA)
ripple ≤ 20 mV
load regulation (1 A to 4 A) = 10 mV (V o = 5.1 V)
line regulation (220 V ± 15 % and to I o = 3 A) = 15 mV (V o = 5.1 V)
Figure 39 :
Preregulatorfor Distributed Supplies.
(*) L2 and C2 are necessary to reducethe switching frequency spikes.
17/22
L296 - L296P
Figure 40 : In Multiple Supplies Several L296s
Figure 41 : VoltageSensing for Remote Load.
can be SynchronizedAs Shown.
Figure 42 : A 5.1 V/15 V/24 V Multiple Supply.Note the Synchronizationof the Three L296s.
18/22
L296 - L296P
Figure 43 : 5.1V/2APower Supply using External
Limiting Current Resistor and Crow-
bar Protectionon the Supply Voltage
(L296Ponly)
sistor may be added, as shown in Figure 45 ; with
this circuit discharge times of a few microseconds
may be obtained.
Figure 45
SOFT-START AND REPETITIVE POWER-ON
Whenthedeviceisrepetitivelypowered-on,thesoft-
start capacitor, CSS, must be discharged rapidly to
ensurethateachstartis ”soft”.Thiscanbeachieved
economicallyusingtheresetcircuit,asshowninFig-
ure 44.
HOW TO OBTAIN BOTH RESET AND
POWER FAIL
Inthis circuit the dividerR1, R2 connectedto pin12
determines the minimum supply voltage, below
whichthe opencollectortransistorat thepin14 out-
put discharges CSS.
Figure46 illustrateshowit ispossibleto obtainat the
same time both the power fail and reset functions
simply byaddingonediode(D)andoneresistor(R).
In this case the Reset delay time (pin 13) can only
start when the outputvoltageis VO ≥ VREF - 100mV
and the voltageaccross R2 is higher than 4.5V.
Figure 44
Withthehysteresisresistorit is possibletofixthein-
put pin 12 hysteresis in order to increase immunity
to the 100Hzripple present on the supply voltage.
Moreover, the power fail and reset delay time are
automatically locked tothe soft-start.Soft-startand
delayed reset are thus two sequential functions.
The hysteresis resistor should be In the range of
aboit100kΩ and the pull-up resistor of 1 to 2.2kΩ.
Figure 46
Theapproximatedischargetimesobtainedwiththis
circuit are :
CSS ( F)
tDIS ( s)
µ
µ
2.2
4.7
10
200
300
600
Ifthesetimesarestilltoolong,an externalPNPtran-
19/22
L296 - L296P
mm
inch
DIM.
OUTLINE AND
MIN. TYP. MAX. MIN. TYP. MAX.
MECHANICAL DATA
A
B
5
0.197
0.104
0.063
2.65
1.6
C
D
1
0.039
E
0.49
0.66
1.02
0.55 0.019
0.75 0.026
0.022
0.030
F
G
1.27
1.52 0.040 0.050 0.060
G1
H1
H2
L
17.53 17.78 18.03 0.690 0.700 0.710
19.6
0.772
20.2
0.795
21.9
21.7
22.2
22.1
22.5 0.862 0.874 0.886
22.5 0.854 0.870 0.886
L1
L2
L3
L4
L7
M
17.65
18.1 0.695
0.713
17.25 17.5 17.75 0.679 0.689 0.699
10.3
2.65
4.25
4.63
1.9
10.7
10.9 0.406 0.421 0.429
2.9 0.104 0.114
4.55
5.08
4.85 0.167 0.179 0.191
5.53 0.182 0.200 0.218
M1
S
2.6
2.6
0.075
0.075
0.102
0.102
0.152
S1
Dia1
1.9
Multiwatt15 V
3.65
3.85 0.144
20/22
L296 - L296P
mm
inch
DIM.
OUTLINE AND
MIN. TYP. MAX. MIN. TYP. MAX.
MECHANICAL DATA
A
B
5
0.197
0.104
0.063
0.022
0.030
2.65
C
1.6
E
0.49
0.66
1.14
0.55 0.019
0.75 0.026
F
G
1.27
1.4
0.045 0.050 0.055
G1
H1
H2
L
17.57 17.78 17.91 0.692 0.700 0.705
19.6 0.772
20.2
0.795
20.57
18.03
2.54
0.810
0.710
0.100
L1
L2
L3
L4
L5
L6
L7
S
17.25 17.5 17.75 0.679 0.689 0.699
10.3
10.7
5.28
2.38
10.9 0.406 0.421 0.429
0.208
0.094
2.65
1.9
2.9
2.6
2.6
0.104
0.075
0.075
0.114
0.102
0.102
0.152
S1
Dia1
1.9
Multiwatt15 H
3.65
3.85 0.144
21/22
L296 - L296P
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the conse-
quences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this
publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMi-
croelectronics products are not authorized for use as critical components in life support devices or systems without express written
approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
2000 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco -
Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A.
http://www.st.com
22/22
相关型号：
©2020 ICPDF网 联系我们和版权申明