Datasheet

L9935 Functional description
Doc ID 5198 Rev 10 21/29
5.14 Test condition for all propagation times
Unless otherwise specified) HIGH  3 V; LOW  0.8 V; t
r
, t
f
= 10 ns;
Enable: ENN Low < 0.8 V, ENN High > V
CC
-0.8 V
Table of bits
bit5,bit4: current range of bridge A (Outputs A1 and A2)
bit3: polarity of bridge A
bit2,bit1: current range of bridge B (Outputs B1 and B2)
bit0: polarity of bridge B
bit7,bit6: Error1 and Error 2
Table 9. Test condition for all propagation times
Symbol Parameter Test conditions Min. Typ. Max. Unit
f
SCLK
SCK-Frequency - DC - 2MHz -
t
1
SCK stable before and after
CSN = 0
-100 --ns
t
ch
Width of SCK high pulse - 200 - - ns
t
cl
Width of SCK low pulse - 200 - - ns
t
su
SDI setup time - 80 - - ns
t
sh
SDI hold time - 80 - - ns
t
d
SDO delay time (C
L
= 50pF) - - 100 - ns
t
zc
SDO high Z CSN high - - 100 - ns
t
en_sck
Setup time ENABLE to SCK HIGH > V
CC
-1.2 V 30 - - s
t
pd
Propagation delay SPI to output
QXX
--2
(1)
- s
1. Measured at a transition from High impedance (Bridge off) to bridge on. (Reversing polarity takes about 1ms longer
because the bridge first turns off before turning on in reverse direction).