33883 Datasheet, PDF (2/21 Pages) Freescale Semiconductor, Inc – H-Bridge Gate Driver IC

INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
G_EN
C1
C2
Undervolt-
age/Over-
voltage
V_CC, V_CC2
V_DD
V_CC
V_CC
C1
EN ^Charge C2
Pump
CP_OUT
GND
V_POS
GND2 ^VCC2
V_DD
GND_A
GND2
V_CC2
+5.0 V
EN ^Linear
GND ^Reg _{+14.5 V} ^LR_OUT
HIGH- AND LOW-SIDE
CONTROL WITH CHARGE PUMP
V_CC2
V_CC
VCC2
VCC
CP_OUT
LR_OUT
IN_HS1
IN_LS1
BRG_EN
T_SD1
BRG_EN
T_SD1
Con-
trol and
Logic
Con-
trol and
Logic
V_DD / V_POS
Level Shift
Pulse
Generator
HIGH-SIDE CHANNEL
CP_OUT
V_CC
IN _Output ^OU _{GATE_HS}
Driver
T_SD1
Thermal Shutdown
SRC_HS1
LR_OUT
V_DD / V_CC
Level Shift
Pulse
Generator
LOW-SIDE CHANNEL
IN _Output OU _{GATE_LS1}
Driver
GND1
IN_HS2
IN_LS2
BRG_EN
T_SD2
BRG_EN
T_SD2
Con-
trol and
Logic
Con-
trol and
Logic
V_DD / V_POS
Level Shift
Pulse
Generator
HIGH-SIDE CHANNEL
V_CC ^CP_OUT
IN _Output OU _{GATE_HS}
Driver
T_SD2
Thermal Shutdown
SRC_HS2
LR_OUT
V_DD / V_CC
Level Shift
Pulse
Generator
LOW-SIDE CHANNEL
IN _Output OU
Driver
GATE_LS2
GND2
GND GND GND_
Figure 2. 33883 Simplified Internal Block Diagram
33883
2
Analog Integrated Circuit Device Data
Freescale Semiconductor