SI9750 Datasheet, PDF (3/9 Pages) Vishay Siliconix – In-Rush Current Limit MOSFET Driver

Si9750
Vishay Siliconix
SPECIFICATIONS
Parameter
Symbol
Test Conditions
Unless Otherwise Specified
2.9 V ≤ V_DD ≤ 13.2 V
HI/LO = GND, R_BIAS = 12.5 kΩ
L_BOOST = 100 µH, C_BOOST = 100 nF
Min^a
Limits
0 to 70°C
Typ^b
Current Sense Circuit
Current Sense Amplifier
Common Mode Range
V_CMR
0
Current Sense Amplifier
Voltage Offset
V_OS
-3
Current Sense Amplifier
Bias Current
I_SOS
Normal Operation
-0.2
R_LIMSET Reference Current
Current Sense Amplifier
Hysteresis
I_RLIMSET
V_HYST
18
19.5
12
Current Sense Amplifier
Series Offset
V_SOS
HI/LO = V_DD, V_CMR > 0.5 V
20
Power On Reset
RESET Output Voltage
RESET Output Hysteresis^c
RESET Comparator
Input Threshold
V_OP(rst)
V_HYST
V_RST
I_OUT = 1 mA, V_DD > 2 V
See Note ^c
1.223
2
1.250
RESET Comparator
Offset Voltage^d
V_RBIAS
0.5
RESET Comparator
Input Bias Current
I_BIAS
-0.2
RESET Timer Delay
t_RSTD
C_RST = 15 nF, See Figure 8.
110
150
RETRY
t_RETRY
C_RETRY = 100 nF
70
130
Notes
a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production test.
c. In a practical situation, V_HYST is multiplied by ratio of a resistor divider chain. For V_DD = 13.2 V, V_HYST = 20 mV.
d. The RESET comparator input threshold specification (V_RST) includes the RESET comparator offset voltage.
Max^a
V_DD + 0.3
3
21
0.4
1.277
190
200
Unit
V
mV
µA
mV
V
mV
V
mV
µA
µs
ms
FaxBack 408-970-5600, request 70028
www.siliconix.com
S-60752—Rev. C, 05-Apr-99
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