MC33927 Datasheet, PDF (37/44 Pages) Freescale Semiconductor, Inc – Three-Phase Field Effect Transistor Pre-Driver

TYPICAL APPLICATIONS
PROTECTION AND DIAGNOSIS FEATURES
V_BAT
+12V Nom.
TYPICAL APPLICATIONS
+
To Other
Two Phases
PUMP
VPWR
VBAT
VPUMP
PGND
MAIN
CHARGE
PUMP
OSCILLATOR
5V
REG.
VDD
VLS
REG.
TRICKLE
CHARGE
PUMP
HOLD
-OFF
CIRCUIT
RST
INT
EN1
EN2
PX_HS
PX_LS
CS
SI
SCLK
SO
PHASEX
OC_OUT
GND(2)
3
3
3
+
-
OVER-CUR.
COMP.
VSS OC_TH
CONTROL
LOGIC
UV
DETECT
3X
T-LIM
VBAT
+
DESAT.
COMP
1.4V
-
+
-
HIGH-
SIDE
DRIVER
+
-
I-SENSE
AMP.
+
-
PHASE
COMP.
VBAT
LOW-
SIDE
DRIVER
AMP_OUT AMP_N AMP_P
VLS_CAP
VLS
VDD
PX_BOOT
PX_HS_G
PX_HS_S
PX_LS_G
PGNDX
C_{x_Boot}
R_{g_HS}
(Optional)
R_{g_LS}
(Optional)
Phase x
Output
To Motor
Phase Return
R_Sense
To ADC
Figure 17. Typical Application Diagram Using Charge Pump (+12V Battery System)
Analog Integrated Circuit Device Data
Freescale Semiconductor
33927
37