TLE7184F Infineon Technologies, TLE7184F Datasheet - Page 13

• 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

5.3
The TLE7184F provides a bootstrap based supply for its high side output stages. The benefit of this principle is a
fast switching of the high side switches - supporting active freewheeling in high side.
The bootstrap capacitors are charged by switching on the external low side MOSFETs connecting the bootstrap
capacitor to GND. Under this condition the bootstrap capacitor will be charged from the VREG capacitor. If the low
side MOSFET is switched off and the high side MOSFET is switched on, the bootstrap capacitor will float together
with the SHx voltage to the supply voltage of the bridge. Under this condition the supply current of the high side
output stage will discharge the bootstrap capacitor. This current is specified. The size of the capacitor together
with this current will determine how long the high side MOSFET can be kept on without recharging the bootstrap
capacitor.
When all external MOSFETs are switched off, the SHx voltage can be undefined. Under this condition, the
bootstrap capacitors can be discharged, dependent on the SHx voltage.
5.4
Electrical Characteristics MOSFET Drivers
V
(unless otherwise specified)
Pos.
Inputs
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
MOSFET driver output
5.4.6
5.4.7
5.4.8
5.4.9
5.4.10
Data Sheet
S
=
7.0 to 33 V
Parameter
Low level input voltage of ILx; IHx
High level input voltage of ILx; IHx
Input hysteresis of IHx; ILx
IHx pull-up resistors to VDD
ILx pull-down resistors to GND
Output source resistance
Output sink resistance
High level output voltage Gxx vs.
Sxx
High level output voltage GHx vs.
SHx
High level output voltage GHx vs.
SHx
Bootstrap Principle
Electrical Characteristics
1)
1)3)
,
T
j
= -40 C to +150 C all voltages with respect to ground, positive current flowing into pin
1)
Symbol
V
V
d
R
R
R
R
V
V
V
VI
I_LL
I_HL
IH
IL
Sou
Sink
Gxx1
Gxx2
Gxx3
13
Min.
–
2.8
100
33.5
210
2
2
–
6
6
+
V
diode
Limit Values
Typ.
–
–
–
–
–
–
–
11
–
–
Max.
1.6
–
–
66.5
490
13.5
9
14
–
–
Unit
V
V
mV
k
k
V
V
V
Rev. 1.0, 2008-12-04
Conditions
–
–
–
–
–
Iload=20mA
Iload=20mA
13,5V
<=V
V
V
I
V
C
dc=94%;
f
V
C
dc=94%;
f
passive
freewheeling
PWM
PWM
load
IOV
VDH
Vs
Vs
load
load
=8V,
=8V,
=37,5mA
MOSFET Driver
<=
=20kHz
=20kHz;
=20nF,
=20nF,
<=
VS
<=45V
V
TLE7184F
V
OVIOV
OVVDH
2)
,
,