L9953 Datasheet, PDF (14/38 Pages) STMicroelectronics – Door actuator driver

Electrical specifications
L9953 / L9953XP
2.5
SPI - electrical characteristics
(V_S = 8 to 16V, V_CC = 4.5 to 5.3V, T_j = - 40 to 150°C, unless otherwise specified. The
voltages are referred to GND and currents are assumed positive, when the current flows into
the pin).
Table 12. Delay time from standby to active mode
Symbol Parameter
Test condition
Switching from standby to active mode.
t_set
Delay time _{Time until output drivers are enabled}
Min. Typ. Max. Unit
160 300 µs
Table 13. Inputs: CSN, CLK, PWM1/2 and DI
Symbol
Parameter
Test condition
Min. Typ. Max.
V_inL Input low level
V_CC = 5V
1.5 2.0
V_inH Input high level
V_CC = 5V
3.0 3.5
V_inHyst Input hysteresis
V_CC = 5V
0.5
I_{CSN in} Pull up current at input CSN V_CSN = 3.5V V_CC = 5V -40 -20
-5
I_{CLK in} Pull down current at input CLK
V_CLK = 1.5V
10 25 50
I_{DI in} Pull down current at input DI
V_DI = 1.5V
10 25 50
I_{PWM1 in}
Pull down current at input
PWM1
V_PWM = 1.5V
10 25 50
C_in(1)
Input capacitance at input
CSN, CLK, DI and PWM1/2
0 V < V_CC < 5.3V
10 15
1. Value of input capacity is not measured in production test. Parameter guaranteed by design.
Unit
V
V
V
µA
µA
µA
µA
pF
Table 14.
Symbol
DI timing⁽¹⁾
Parameter
Test condition
t_CLK
t_CLKH
t_CLKL
t_{set CSN}
Clock period
Clock high time
Clock low time
CSN setup time, CSN low
before rising edge of CLK
t_{set CLK}
CLK setup time, CLK high
before rising edge of CSN
t_{set DI} DI setup time
t_{hold time} DI hold time
t_{r in}
Rise time of input signal DI,
CLK, CSN
t_{f in}
Fall time of input signal DI,
CLK, CSN
V_CC = 5V
V_CC = 5V
V_CC = 5V
V_CC = 5V
V_CC = 5V
V_CC = 5V
V_CC = 5V
V_CC = 5V
V_CC = 5V
1. DI timing parameters tested in production by a passed / failed test:
Tj= -40°C / +25°C: SPI communication @ 2MHz.
Tj= +125°C
SPI communication @ 1.25 MHz.
Min. Typ. Max. Unit
1000
ns
400
ns
400
ns
400
ns
400
ns
200
ns
200
ns
100 ns
100 ns
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Doc ID 14278 Rev 3