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參數(shù)資料
| 型號： | XC33487D |
| 廠商： | Motorola, Inc. |
| 英文描述： | Automotive Dual High Side Driver |
| 中文描述： | 汽車雙高邊驅(qū)動器 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大小： | 134K |
| 代理商： | XC33487D |
XC33487
Automotive Dual High Side Driver
4
FUNCTIONAL TRUTH TABLE
Conditions
IN1
IN2
OUT1
OUT2
St1
St2
Normal Operation
L
H
L
H
L
L
H
H
L
H
L
H
L
L
H
H
H
H
H
H
H
H
H
H
Undervoltage
X
X
L
L
H
H
Overtemperature Channel 1
Overtemperature Channel 2
Overtemperature Channel 1/Channel 2
H
X
H
X
H
H
L
X
L
X
L
L
L
H
L
H
L
L
Open Load Channel 1
Open Load Channel 2
H
X
X
H
H
X
X
H
L
H
H
L
Overcurrent Channel 1
Overcurrent Channel 2
H
X
X
H
X
X
X
X
H
H
H
H
PIN FUNCTION DESCRIPTION
Pin No.
Name/Function
Description
1, 2, 5, 6, 15, 16, 19, 20
10
V
bat
Supply Voltage
V
batc
Supply Voltag
These are the power supply pins of the device. These pins are
directly connected with the lead frame of the package and are tied to
the drain of the switching MOSFET. These pins can be directly
connected to the battery voltage. In addition to their supply functions,
these pins participate to the thermal behaviour of the device in
conducting the heat from the switching MOSFET to the printed circuit
board. V
batc
provide the supply voltage to the control die.
3, 4, 18, 17
OUT1
OUTPUT Channel 1
OUT 2
OUTPUT Channel 2
Pins 3 and 4 are the output 1 terminals. Pins 17 and 18 are the output 2
terminals. They are directly connected to the source of the power
MOSFET. The Rdson is 25m
max per output at 25
°
C. Its value
increases up to 40m
at 150
°
C junction temperature.
8, 13
IN 1
INPUT Channel 1
IN 2
INPUT Channel 2
These are the device input pins, which directly control their
associated output. The thresholds are CMOS compatible. When the
input is in low state, the associated output MOSFET is off. When
input is high, the MOSFET is turned on and the load is activated.
When both inputs are low, the device is in standby mode and its
supply current is less than 10uA for V
bat
up to 14V.
7, 14
Cur R1
Current Recopy for
Channel 1
Cur R2
Current Recopy for
Channel 2
These pins corresponds to a current recopy for each outputs. Their
high accuracy permit to allow a precise monitoring of the outputs
loads as well as to detect a failed lamp among several lamps.
An external resistor must be connected to these pins which can be
tied to a microcontroller A/D for analog measurements
9, 12
ST-1
Status for Channel 1
ST-2
Status for Channel 2
These pins are the channel 1 and 2 status. Their internal structure is
an open drain with an internal clamp at 6V. An external pull up
connected to the 5V is needed. When the device is in normal
condition the status is high. If open load or overtemperature occurs
on one channel, the associated output status will be pulled low.
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