L296 데이터 시트보기 (PDF) - STMicroelectronics
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L296 Datasheet PDF : 22 Pages
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L296 - L296P
THERMAL DATA
Symbol
Rth j-case
Rth j-amb
Parameter
Thermal Resistance Junction-case
Thermal Resistance Junction-ambient
Max.
Max.
Value
3
35
Unit
°C/W
°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 Output Voltage Range
Vi = 46V, Io = 1A
Vref
40
V
4
Vi Input Voltage Range
Vo = Vref to 36V, Io ≤ 3A
9
46
V
4
Vi Input Voltage Range
Note (1), Vo = VREF to 36V Io = 4A
46
V
4
∆Vo Line Regulation
Vi =10V to 40V, Vo = Vref, Io = 2A
15 50 mV 4
∆Vo Load Regulation
Vo = Vref
Io = 2A to 4A
Io = 0.5A to 4A
mV 4
10 30
15 45
Vref Internal Reference Voltage (pin 10) Vi = 9V to 46V, Io = 2A
5 5.1 5.2
V
4
∆ Vref Average Temperature Coefficient
∆ T of Reference Voltage
Tj = 0°C to 125°C, Io = 2A
0.4
mV/°C
Vd Dropout Voltage Between Pin 2
and Pin 3
Io = 4A
Io = 2A
2 3.2
V
4
1.3 2.1
V
4
I2L Current Limiting Threshold (pin 2) L296 - Pin 4 Open,
4.5
Vi = 9V to 40V, Vo = Vref to 36V
7.5
A
4
L296P - Vi = 9V to 40V, Vo = Vref
Pin 4 Open
5
RIim = 22kΩ
2.5
A
4
7
4.5
ISH Input Average Current
Vi = 46V, Output Short-circuited
60 100 mA 4
η Efficiency
Io = 3 A
Vo = Vref
Vo = 12V
%4
75
85
SVR Supply Voltage Ripple Rejection
∆Vi = 2 Vrms, fripple = 100Hz
Vo = Vref, Io = 2A
50 56
dB 4
f
Switching Frequency
85 100 115 kHz 4
∆ f Voltage Stability of Switching
∆ Vi Frequency
Vi = 9V to 46V
0.5
%4
∆ f Temperature Stability of Switching Tj = 0°C to 125°C
∆ Tj Frequency
1
%4
fmax Maximum Operating Switching
Frequency
Vo = Vref, Io = 1A
200
kHz –
Tsd Thermal Shutdown Junction
Temperature
Note (2)
135 145
°C –
DC CHARACTERISTICS
I3Q Quiescent Drain Current
– I2L Output Leakage Current
Vi = 46V, V7 = 0V, S1 : B, S2 : B
V6 = 0V
V6 = 3V
Vi = 46V, V6 = 3V, S1 : B, S2 : A,
V7 = 0V
mA
66 85
30 40
2 mA
Note (1) : Using min. 7 A schottky diode.
(2) : Guaranteed by design, not 100 % tested in production.
5/22
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