L9341 Ver la hoja de datos (PDF) - STMicroelectronics
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L9341 Datasheet PDF : 10 Pages
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L9341
ELECTRICAL CHARACTERISTICS (Unless otherwise specified: 8V ≤ VS ≤ 24V; 4.7V ≤ VCC ≤ 5.3V; –
40 °C ≤ Tj ≤ 150°C; IO ≤ 1A (note 3); IO ≤ 1.5A; Vsp = VS for t ≤ 400ms; VOUTP = VOUT for t ≤ 400ms;
Rext = 12.4KΩ ± 1%).
Symbol
Iccq
Isq
Vccu
Vcc r
Ron
Io off
Voutf
Ig ndf
Iout r
VinH
VinL
VREShys
IinRESH
Iin
VSDOH
VSDOL
ISDOZ
PWMduty
Kf
Vflyth
Voffth
Ioutl
tdpo
Sov
Soc
Parameter
Vcc Quiescent Current
Vs Quiescent Current
Vcc Undervoltage Threshold
Vcc Range for RES1 and RES2
Operation
On Resistance
Off State Output Current
Output Voltage During Flyback
Current to GND during Flyback
(see note 5)
Reverse Leakage Current
High Input Level of SCLK,
SDI, CS, RES1, RES2
Low Input Level of SCLK,
SDI, CS, RES1, RES2
Hysteresis of Reset Inputs
RES1, RES2
Input Current on RES1,RES2
Input Current on SCLK,SDI,CS
High Level SDO Output Voltage
Low Level SDO Output Voltage
SDO Tristate High-Z Leakage
Current
PWM Duty Cycle
Frequency Accuracy Constant
Flyback Diagnostic Comparator
Threshold
Off State Diagnostic
Comparator Threshold
Output Current Limitation Threshold
Delay Time PWM Signal to Out.
Output Voltage Rise and Fall
Slope | du/dt |
Output Current Rise and Fall
Slope |di/dt|
Test Condition
All Outputs Off
All Outputs Off
See Note 4
Io = 1A Tj = 125°C
Tj = 25°C
Outputs Off
1.4V ≤ Vo ≤ Vs
Voutp = Vsp = 40V
Io = 1A Output Off
Tj = 25°C
Tj = 125°C
Io = 1A Output Off
Vs = 24V
Vsp = 40V
Vsp - Vo = 40V
RESi = H; -2V ≤ Vsp ≤ 8V
RESi = H; 8V ≤ Vsp ≤ 40V
– 2V ≤ Vsp ≤ 40V
ISDO = -1mA -2V ≤ Vsp ≤ 40V
ISDO = 1mA -2V ≤ Vsp ≤ 40V
0 ≤ VSDO ≤ Vcc
– 2V ≤ Vsp ≤ 40V
See Note 6
40 ≥ Vsp ≥ 8V
Vs ≤ 8V
see Note 7
(from 10 to 90% of Vo) Fig. 2
0.1 ≤ Io ≤ 1.5A
(from 10 to 90% of Io)
Min. Typ. Max. Unit
1
3
mA
14
25
mA
3
4
4.7
V
3
V
750 mΩ
450 mΩ
1
2.5
4
mA
1
10
mA
Vs +1.3 V
Vs +1.1 V
17
44
mA
20
52
mA
500
µA
0.7*Vcc
Vcc+0.3 V
– 0.3
0.3*Vcc V
0.3
1
V
– 10
5
– 10
0.9*Vcc
0
– 10
10
µA
10
µA
10
µA
Vcc
V
0.4
V
10
µA
1/16
15/16
0.93*Kfn Kfn 1.07*Kfn
Vs – 1
1.5
Vs – 0.4 V
V
1.5
2
V
1.5
2.5
A
5
15
µs
1.0
10 V/µs
25
125 mA/µs
Notes:
∫ 3.
The
mean
value
is
Io
=
1
T
T
Io (t) dt
0
;
4. The outputs are switced off for Vcc ≤ Vccu. The logic is not reseted. For a reset, RES1 or RES2 must be used.
5. This current is measured in the GND - terminal when one single output is in flyback and consists of the supply current added to the value
of the output current source and the leakage current of the flyback diode. This leakage current is less than 1% of the nominal flyback current.
6. The PWM frequency is defined by an external
capacitor.
The
PWM
oscillator
frequency
is:
fpwm
=
fo sc
32
with fosc
=
Kf
Co sc
⋅
1A/V
and
kin
=
15
⋅
10- 6;
the range is: 300Hz ≤ fpwm ≤ 3000Hz. The OSC Pin can be alternatively driven by an external TTL / CMOS signal.
7. For Iout ≥ Ioutl an internal comparator switches the corresponding output off for the current PWM cycle.
3/10
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