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參數(shù)資料
| 型號(hào)： | MC33883R2 |
| 廠商： | Motorola, Inc. |
| 英文描述： | H-Bridge Gate Driver IC |
| 中文描述： | H橋門驅(qū)動(dòng)器集成電路 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大小： | 556K |
| 代理商： | MC33883R2 |
33883
8
Go to: www.freescale.com
SYSTEM/APPLICATION INFORMATION
INTRODUCTION
The 33883 is an H-bridge gate driver (or full-bridge predriver)
with integrated charge pump and independent high- and low-
side driver channels. It has the capability to drive large gate-
charge MOSFETs and supports high PWM frequency. In sleep
mode its supply current is very low.
FUNCTIONAL TERMINAL DESCRIPTION
Supply Voltage Terminals (V
CC
and V
CC2
)
The V
CC
and V
CC2
terminals are the power supply inputs to
the device. V
CC
is used for the output high-side drivers and the
charge pump. V
CC2
is used for the linear regulation. They can
be connected together or independent with different voltage
values. The device can operate with V
CC
up to 55 V and V
CC2
up to 28 V.
The V
CC
and V
CC2
terminals have undervoltage (UV) and
overvoltage (OV) shutdown. If one of the supply voltage drops
below the undervoltage threshold or rises above the
overvoltage threshold, the gate outputs are switched LOW in
order to switch off the external MOSFETs. When the supply
returns to a level that is above the UV threshold or below the OV
threshold, the device resumes normal operation according to
the established condition of the input terminals.
Input High- and Low-Side Terminals (IN_HSn and
IN_LSn)
The IN_HSn and IN_LSn terminals are input control
terminals used to control the gate outputs. These terminals are
5.0 V CMOS-compatible inputs with hysteresis. IN_HSn and
IN_LSn independently control GATE_HSn and GATE_LSn,
respectively.
During wake-up, the logic is supplied from the G_EN
terminal. There is no internal circuit to prevent the external high-
side and low-side MOSFETs from conducting at the same time.
Source Output High-Side Terminals (SRC_HSn)
The SRC_HSn terminals are the sources of the external
high-side MOSFETs. The external high-side MOSFETs are
controlled using the
IN_HSn
inputs.
Gate High- and Low-Side Terminals (GATE_HSn and
GATE_LSn)
The GATE_HSn and GATE_LSn terminals are the gates of
the external high- and low-side MOSFETs. The external high-
and low-side MOSFETs are controlled using the IN_HSn
and
IN_LSn inputs.
G_EN Terminal
The G_EN terminal is used to place the device in a sleep
mode. When the G_EN terminal voltage is a logic LOW state,
the device is in sleep mode. The device is enabled and fully
operational when the G_EN terminal voltage is logic HIGH,
typically 5.0 V.
Charge Pump Out Terminal (CP_OUT)
The CP_OUT terminal is used to connect an external
reservoir capacitor for the charge pump.
Charge Pump Capacitor Terminals (C1 and C2)
The C1 and C2 terminals are used to connect an external
capacitor for the charge pump.
Linear Regulator Output Terminal (LR_OUT)
The LR_OUT terminal is the output of the internal regulator.
It is used to connect an external capacitor.
Ground Terminals (GNDn and GND_A)
These terminals are the ground terminals of the device. They
should be connected together with a very low impedance
connection.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
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