L9935(1999) Ver la hoja de datos (PDF) - STMicroelectronics
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L9935 Datasheet PDF : 19 Pages
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L9935
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
SWITCH OFF THRESHOLD OF THE CHOPPER (R1 ⋅ R2 = 0.33Ω)
VSRHL
VSRLH
VSRLL
Voltage Drops Across R1 ⋅ R2 2)
(Voltage at Pin SRA or SRB vs.
GND)
Bit 5, 2 = H Bit 4, 1 = L
Bit 5, 2 = L Bit 4, 1 = H
Bit 5, 4, 2, 1 = L
ENABLE INPUT EN
VEN High High Input Voltage
VEN low Low Input Voltage
VEN Hyst Enable Hysteresis
IEN High High Input Current
IEN Low
Low Input Current
LOGIC INPUTS SDI. SCK, CSN
VHIGH
VLOW
VHyst
High Input Voltage
Low Input Voltage
Hysteresis
IHIGH
High Input Current
IL ow
Low Input Current
LOGIC OUTPUTS (SDO)
VSDO,High High Output Voltage
VHigh = VCC
VLOW = 0V
EN = LOW
VHigh = VCC
VLow = 0V
ISDO = -1mA
VSDO,Low Low Output Voltage
OSCILLATOR
VOSC, H
VOSC, L
High Peak Voltage
Low Peak Voltage
IOSC
Charging/Discharging Current
fOSC
Oscillator Frequency
tStart
Oscillator Startup Time
THERMAL PROTECTION
TJ-OFF
Thermal Shut-Down
Temperature
TJ-ALM
Thermal Prealarm
∆TMGN Margin Prealarm/Shut-Down
ISDO = 1mA
EN = LOW
EN = LOW
COSC = 1nF
EN = High → Low
Min. Typ. Max. Unit
12
20
35
mV
160 180 210 mV
270 300 340 mV
VCC
V
-1.2V
1.2
V
0.1
V
-10
0
10
µA
-3
-10
-30
µA
2.6
8
V
-0.3
1
V
0.8
1.2
1.6
V
-10
0
10
µA
-3
-10
-30
µA
VCC -1 VCC
VCC
V
-0.17
0.17
1
V
2.2 2.46 2.6
V
1
1.23 1.4
V
45
62
80
µA
20
25
31
kHz
2/fosc 5/fosc 8/fosc
160 180 200
°C
130 160
°C
10
20
30
K
1) Parameters are tested at 125°C. Values at 140°C are guaranteed by design and correlation.
2) Currents of combinations LH and LL are sensed at the external resistors. The Current of bit combination HL is sensed internally and
cannot be adjusted by changing the sense resistors.
4/19
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