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L9341 Datasheet(PDF) 3 Page - STMicroelectronics

Part # L9341
Description  QUAD LOW SIDE DRIVER
Download  10 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9341 Datasheet(HTML) 3 Page - STMicroelectronics

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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 = 12.4K
Ω ± 1%).
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Iccq
Vcc Quiescent Current
All Outputs Off
1
3
mA
Isq
Vs Quiescent Current
All Outputs Off
14
25
mA
Vccu
Vcc Undervoltage Threshold
See Note 4
3
4
4.7
V
Vccr
Vcc Range for RES1 and RES2
Operation
3V
Ron
On Resistance
Io =1A
Tj = 125
°C
Tj =25
°C
750
450
m
m
Io off
Off State Output Current
Outputs Off
1.4V
≤ Vo ≤ Vs
Voutp =Vsp = 40V
1
1
2.5
4
10
mA
mA
Voutf
Output Voltage During Flyback
Io = 1A Output Off
Tj =25
°C
Tj = 125
°C
Vs +1.3
Vs +1.1
V
V
Igndf
Current to GND during Flyback
(see note 5)
Io = 1A Output Off
Vs = 24V
Vsp = 40V
17
20
44
52
mA
mA
Ioutr
Reverse Leakage Current
Vsp -Vo = 40V
500
µA
VinH
High Input Level of SCLK,
SDI, CS, RES1, RES2
0.7*Vcc
Vcc+0.3
V
VinL
Low Input Level of SCLK,
SDI, CS, RES1, RES2
– 0.3
0.3*Vcc
V
VREShys
Hysteresis of Reset Inputs
RES1, RES2
0.3
1
V
IinRESH
Input Current on RES1,RES2
RESi = H; -2V
≤ Vsp ≤ 8V
RESi =H; 8V
≤ Vsp ≤ 40V
–10
5
10
10
µA
µA
Iin
Input Current on SCLK,SDI,CS
– 2V
≤ Vsp ≤ 40V
– 10
10
µA
VSDOH
High Level SDO Output Voltage
ISDO = -1mA -2V
≤ Vsp ≤ 40V
0.9*Vcc
Vcc
V
VSDOL
Low Level SDO Output Voltage
ISDO = 1mA -2V
≤ Vsp ≤ 40V
0
0.4
V
ISDOZ
SDO Tristate High-Z Leakage
Current
0
≤ VSDO ≤ Vcc
–2V
≤ Vsp ≤ 40V
–10
10
µA
PWMduty
PWM Duty Cycle
1/16
15/16
Kf
Frequency Accuracy Constant
See Note 6
0.93*Kfn
Kfn
1.07*Kfn
Vflyth
Flyback Diagnostic Comparator
Threshold
40
≥ Vsp ≥ 8V
Vs
≤ 8V
Vs –1
1.5
Vs – 0.4
V
V
Voffth
Off State Diagnostic
Comparator Threshold
1.5
2
V
Ioutl
Output Current Limitation Threshold
see Note 7
1.5
2.5
A
tdpo
Delay Time PWM Signal to Out.
5
15
µs
Sov
Output Voltage Rise and Fall
Slope | du/dt |
(from 10 to 90% of Vo) Fig. 2
1.0
10
V/
µs
Soc
Output Current Rise and Fall
Slope |di/dt|
0.1
≤ Io ≤ 1.5A
(from 10 to 90% of Io)
25
125
mA/
µs
Notes:
3. The mean value is Io =
1
T
Io
(t) dt
0
T
;
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 =
fosc
32
with fosc =
Kf
Cosc
⋅ 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.
L9341
3/10


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