TLE7184F Infineon Technologies, TLE7184F Datasheet - Page 15

• Manufacturer Part Number: TLE7184F
• Description: IC DRIVER 3PH BRIDGE 48-VQFN
• Manufacturer: Infineon Technologies

Specifications of TLE7184F

• Applications: DC Motor Controller, Brushless (BLDC), 3 Phase
• Number Of Outputs: 1
• Voltage - Supply: 6 V ~ 45 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 48-VFQFN
• Mounting Style: SMD/SMT
• Packages: PG-VQFN-48
• Operating Range: 7.0 - 32.0 V
• Iq: 50 ?A
• Turn On/off Current: -
• D.c.-range @ 20khz: 0...95%
• Numbers Of Integrated Opamps For Load Current Measurement: 1.0
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SP000362096

6
The TLE7184F incorporates a fast and precise operational amplifier for conditioning and amplification of the
current sense shunt signal. The gain of the OpAmp is adjustable by external resistors within a range higher than 5.
The usage of higher gains in the application might be limited by required settling time and band width.
It is recommended to apply a small offset to the OpAmp, to avoid operation in the lower rail at low currents.
The output of the OpAmp ISO is not short-circuit proof.
In addition to the integrated operational amplifier, the TLE7184F incorporates a comparator to detect over current
situations. The output voltage
OpAmp supply (VDD). If
Figure 4
Over current shut down see
6.1
Electrical Characteristics - Current sense signal conditioning
V
into pin (unless otherwise specified)
Pos.
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
Data Sheet
S
= 6.0 to 33 V,
Parameter
Series resistors
Feedback resistor
Limited by the output voltage
dynamic range
Resistor ratio (gain ratio)
Steady state differential input
voltage range across VIN
Input differential voltage (ISP - ISN)
Input voltage (Both Inputs - GND)
(ISP - GND) or (ISN -GND)
Input offset voltage of the I-DC link
OpAmp, including temperature drift
Shunt Signal Conditioning
Shunt Signal Conditioning Block Diagram and Over Current Limitation
Electrical Characteristics
T
j
R
= -40 C to +150 C
shunt
V
external
ISO
Chapter
reaches this level an error is set.
R
R
V
S1
S2
ISO
R
fb3
1)
is compared to a reference voltage
9.2.13.
, gain = 5 to 75,
V
R
DD
fb2
Symbol
R
R
R
V
V
V
V
S
fb
fb/RS
IN(ss)
IDR
LL
IO
ISP
ISN
all voltages with respect to ground, positive current flowing
15
Min.
100
2000
5
-400
-800
-800
–
+
-
R
ERR
fb1
Limit Values
V
DD
Typ.
500
7500
–
–
–
–
–
internal
ASIC
+
-
V
OCTH
V
Max.
1000
–
–
400
800
2000
+/-2
OCTH
ISO
close to the upper rail of the 5V
Unit
–
mV
mV
mV
mV
Shunt Signal Conditioning
Conditions
–
–
–
–
–
–
R
V
Rev. 1.0, 2008-12-04
S
ISO
=500 ;
=1.65V;
TLE7184F
V
CM
=0V;