L6256 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L6256' PDF : 28 Pages View PDF
L6256
CURRENT SENSE AMPLIFIER SPECIFICATIONS
Parameter
Current Amp Gain
Available Output Current
Current Amp CMRR
Test Conditions
Over Temp
Including inductive
flyback range, to 25kHz
(1) Charge buildup on current amp input must not occur.
DAC SECTION SPECIFICATION
General Parameters
Parameter
Differential Non linearity
Integral Non lineraity
PSRR
Settle Time
Output Voltage Span
Voltage Span Tolerance
Output Amp Impedance
Output Short cct Current
Coding
Test Conditions
Best Fit
10 - 14V
90%
Vmin to Vmax
full temp
output shorted
2’s Complement
Min.
2.35
±600
60
Min.
60
-7
1
Typ.
2.4
Typ.
0.5
±2.5
Max.
2.45
Units
V/V
µA
dB (1)
Max.
1
2
1.2
+7
5
Units
LSB
LSB
dB
µs
V
%
Ω
mA
PARK SECTION SPECIFICATIONS
Parameter
Park Voltage
Test Conditions
Min.
0.45
Typ.
0.5
Max.
0.55
Units
V
3.3V Voltage Regulator
VOLTAGE REGULATOR SPECIFICATIONS
Current Sense Comparator
Parameter
DC Output Voltage
AC transient
Vilimit (1)
Foldback Current Limit Ratio (2)
Test Conditions
Tj = 0 to 160°C
1mA to full load
Min.
3.135
Tj = 0 to 160°C
0.24
Output Shorted to Ground
Typ.
0.3
3:1
Max.
+3.465
3%
0.36
Units
V
of DC Out.
Volt. (3)
V
Ratio
(1) Vilimit is the voltage at which current limit begins to occur, as seen across Rcl (see block diagram) as measured by the UV detection oc-
curing.
(2) Foldback current limit prevents excessive power dissipation in the pass element under short circuit conditions. The ratio is the current
flowing at current limit when the pass element under short circuit conditions. The ratio is the current flowing at current limit when the pass
element is delivering full voltage (when UV first occurs), over the current in the pass element when the output is shorted to ground.
(3) DC and AC transient requirements may be mixed, as long as the total deviation from 3.3V does not exceed Dvreg as specified under the
critical specifications in section 6 of this specification.
DRIVER OUTPUT
Parameter
Output Current
Output High Voltage
Output Impedance
Test Conditions
VO < 3.5V
I = -0.1mA, V = 5V
25°C
Min.
Vdd-2
Typ.
Max.
0.5
50
Units
mA
V
Ω
24/28
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