TLE7184F Datasheet, PDF (16/35 Pages) Infineon Technologies AG – System IC for B6 motor drives

TLE7184F
Shunt Signal Conditioning
Electrical Characteristics - Current sense signal conditioning (cont’d)
V_S = 6.0 to 33 V, T_j = -40 °C to +150 °C, gain = 5 to 75, all voltages with respect to ground, positive current flowing
into pin (unless otherwise specified)¹⁾
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
6.1.8 Input bias current (ISN,ISP to
I_IB
-300 –
–
µA
V_CM=0V; V_ISO=open
GND)
6.1.9 High level output voltage of ISO V_OH
V_VDD- –
0.2
V_VDD V
I_OH=-3mA
6.1.10 Low level output voltage of ISO V_OL
-0.1 –
0.2
6.1.11 Output short circuit current
I_SC
5
–
–
6.1.12 Differential input resistance²⁾
R_I
100 –
–
6.1.13 Common mode input capacitance²⁾ C_CM
–
–
10
6.1.14 Common mode rejection ratio at C_MRR 80
DC
100 –
CMRR =
20*Log((Vout_diff/Vin_diff) *
(Vin_CM/Vout_CM))
6.1.15 Common mode suppression³⁾ with C_MS
–
–
CMS = 20*Log(Vout_CM/Vin_CM)
Freq =100kHz
62
Freq = 1MHz
43
Freq = 10MHz
33
V
I_OH=3mA
mA –
kΩ –
pF 10kHz
dB –
dB
V_IN=360mV*
sin(2*π*freq*t);
R_s=500Ω; R_fb=7500Ω
6.1.16 Slew rate
d_V/dt
–
6.1.17 Large signal open loop voltage A_OL
80
gain (DC)
10
–
100 –
V/µs
dB
Gain>= 5;
R_L=1.0kΩ; C_L=500pF
–
6.1.18 Unity gain bandwidth
6.1.19 Phase margin ²⁾
6.1.20 Gain margin ²⁾
G_BW
10
20
–
F_M
–
50
–
A_M
–
12
–
MHz
°
dB
R_L=1kΩ; C_L=100pF
Gain>= 5;
R_L=1kΩ; C_L=100pF
R_L=1kΩ; C_L=100pF
6.1.21 Bandwidth
B_WG
1.6
–
–
MHz Gain=15;
R_L=1kΩ; C_L=500pF;
R_s=500Ω
6.1.22
Output settle time to 98%
R_fb/R_S=15
R_fb/R_S=75
t_set1
–
–
µs
R_L=1kΩ;
1
1.8
C_L=500pF;
4.6
8
0.3<V_ISO< 4.8V;
R_s=500Ω
1) A minimum capacitance of 100pF is needed at the output of the OpAmp (parasitic or real capacitor)
2) Not subject to production test; specified by design
3) Without considering any offsets such as input offset voltage, internal miss match and assuming no tolerance error in
external resistors.
Data Sheet
16
Rev. 1.0, 2008-12-04