Datasheet

L9935 Electrical specifications
Doc ID 5198 Rev 10 9/29
3.3 Electrical characteristics
8 V  V
S
 24 V; -40 °C  T
j
 150 °C; 4.5 V  V
CC
 5.5 V, unless otherwise specified.
Parameters are tested at 125 °C. Values at 140 °C are guaranteed by design and
correlation.
Table 5. Electrical characteristics
Symbol Parameter Test condition Min. Typ. Max. Unit
Supply
IS
85
Total supply current I
S
+ I
VCC
(both bridges Off)
V
S
= 14 V; EN = HIGH;
T
J
 85 °C
- 40 100 A
I
SOP
Operating supply current
I
OUT Ai/Bi
= 0; f
OSC
= 30 kHz
V
S
= 14 V
-4.5 -mA
I
CC
5 V supply current EN = LOW - 1.4 10 mA
Full bridges
R
OUT, Sink
R
DSON
of sink transistors Current bit - 0.4 0.7 
R
OUT, Source
R
DSON
of source transistors combinations LL, LH, V
S
12 V - 0.4 0.7 
R
OUT8
, Sink
R
DSON
of sink transistors +
R
DSON
of source transistors
Current bit combinations LL,
LH, V
S
= 8V
-1.6 3 
V
FWD
Forward voltage of the DMOS
body diodes
EN
= HIGH; I
FWD
= 1 A;
V
S
12 V
- 1 1.4 V
V
REV
Reverse DMOS voltage EN = LOW I
REV
= 1 A - 0.5 0.9 V
t
r
, t
f
Rise and fall time of outputs
OUT
Ai/Bi
0.1...0.9 V
OUT
V
S
= 14 V
Chopping 550 mA
0.3 0.6 1.5 s
Switch Off threshold of the chopper (R
1
 R
2
= 0.33 )
V
SRHL
Voltage drops across R
1
 R
2
(1)
(Voltage at Pin SR
A
or SR
B
vs.
GND)
Bit 5, 2 = H; Bit 4, 1 = L 12 20 35 mV
V
SRLH
Bit 5, 2 = L; Bit 4, 1 = H 160 180 210 mV
V
SRLL
Bit 5, 4, 2, 1 = L 270 300 340 mV
Enable input EN
V
EN High
High input voltage -
V
CC
-
1.2V
--V
V
ENlow
Low input voltage - - - 1.2 V
V
EN Hyst
Enable hysteresis - 0.1 - - V
I
EN High
High input current V
High
= V
CC
-10 0 10 A
I
EN Low
Low input current V
LOW
= 0V -3 -10 -30 A
Logic inputs SDI. SCK, CSN
V
HIGH
High input voltage
EN
= LOW
2.6 8 V
V
LOW
Low input voltage -0.3 1 V
V
Hyst
Hysteresis 0.8 1.2 1.6 V