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L296 Datasheet Preview

L296 Datasheet

HIGH CURRENT SWITCHING REGULATOR

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LINEAR
INTEGRATED
CIRCUIT
ADVANCE DATA
HIGH CURRENT SWITCHING REGULATOR
• 5.1V TO 40V OUTPUT
• 4A OUTPUT CURRENT
• UP TO 160W OUTPUT POWER
• PROGRAMMABLE CURRENT LIMITER
• SOFT START
• RESET OUTPUT
• PRECISE 2%) ON-CHIP REFERENCE
r: "'• VERY FEW COMPONENTS
SWITCHING FREQUENCY TO 200 kHz
J VERY HIGH EFFICIENCY (UP TO 90%)
• THERMAL SHUTDOWN
• REMOTE INHIBIT AND SYNC INPUT
• CONTROL CIRCUIT FOR CROWBAR SCR
The L296 is a monolithic power switching regulator delivering 4A at a voltage variable from 5.1V to
40V in step down configurations. Features of the device include programmable current limiting, soft
start, remote inhibit, thermal protection, a reset output for microprocessors and a synchronisation input
for multichip configurations. The L296 is mounted in a 15-lead MULTIWATT plastic power package
and requ ires very 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.
ABSOLUTE MAXIMUM RATINGS
Vi I nput voltage
10 Output current
IR Reset output current
VR Reset output voltage
V inh
Inhibit voltage
<Pd Power dissipation at T case 90°C
Tj Junction temperature range
Tstg Storage temperature range
50 V
internally limited
50 mA
50 V
15 V
20 W
-25 to +150°C
-65 to + 150 °C
ORDERING NUMBER: L296
MECHANICAL DATA
Dimensions in mm
3/83




SGS

L296 Datasheet Preview

L296 Datasheet

HIGH CURRENT SWITCHING REGULATOR

No Preview Available !

CONNECTION DIAGRAM
(top view)
-$- 15
14
13
12
11
~Ol
8
7
6
5
S-5Bt.'3/1
CROWBAR ORIVE
RESET OUTPUT
RESE T DELAY
RESET INPUT
OSCILLATOR
FEEDBACK INPUT
FREQUENCY COMPENSATION
GROUND
SYNC. INPUT
INHIBIT INPUT
SOFT-START
CURRENT LIMIT
SUPPLY VOLTAGE
OUTPUT
CROWBAR INPUT
BLOCK DIAGRAM
SUPPLY
VOLTAGE
CROWBAR
INPUT
CROWBAR
DRIVE
15
INHIBIT
FUP
FLOP
Ci
<;-5834/1
THERMAL DATA
Rth j-case Thermal resistance junction-case
Rth j-amb Thermal resistance junction-ambient
3/83
:r: Css
RESET
RESET INPUT
--0
1-1",4,\--_R--{ES::JET OUTPUT
13
RESET
~DELAY
max 3 °e/w
max 35 °e/W


Part Number L296
Description HIGH CURRENT SWITCHING REGULATOR
Maker SGS
Total Page 12 Pages
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