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33937 Datasheet(PDF) 41 Page - Freescale Semiconductor, Inc

Part # 33937
Description  Three Phase Field Effect Transistor Pre-driver
PDF  47 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

33937 Datasheet(HTML) 41 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
41
33937
TYPICAL APPLICATIONS
PROTECTION AND DIAGNOSIS FEATURES
Figure 23. High Voltage Application Diagram (+42 V Battery System)
VSUP
VPWR
PUMP
VPUMP
PGND
Main
Charge
Pump
Oscillator
UV
Detect
5V
Reg.
VDD
Control
Logic
T-Lim
RST
EN1
EN2
INT
Px_HS
Px_LS
3
3
CS
SI
SCLK
SO
PHASE_x
3
OC_OUT
OC_TH
AMP_OUT
AMP_N
AMP_P
VLS_CAP
Px_LS_S
Px_LS_G
Px_HS_G
Px_HS_S
Px_BOOT
VDD
VLS
Trickle
Charge
Pump
Hold
-Off
Circuit
High
-Side
Driver
Low
-Side
Driver
VLS
Reg.
I-sense
Amp.
Over-Cur.
Comp.
Phase
Comp.
Desat.
Comp.
To Motor
3 x
+
-
+
-
VSYS
+
-
VSUP
VSUP
1.4V
GND
To Other
Two Phases
Phase x
Output
To ADC
Rg_HS
Rg_LS
(Optional)
(Optional)
Cx_Boot
RSense
Phase
Return
VPWR
PUMP
C2
C6
C3
C5
C4
R1
R2
R3
Rfb
QHS
QLS
+42V Nom.
+14V Nom.



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