- 您现在的位置：买卖IC网 > PDF目录359132 > MC33198 (飞思卡尔半导体(中国)有限公司) High Side TMOS Driver(高端TMOS驱动器) PDF资料下载
参数资料
| 型号： | MC33198 |
| 厂商： | 飞思卡尔半导体(中国)有限公司 |
| 英文描述： | High Side TMOS Driver(高端TMOS驱动器) |
| 中文描述： | 高边坡的TMOS驱动器（高端的TMOS驱动器） |
| 文件页数： | 9/11页 |
| 文件大小： | 296K |
| 代理商： | MC33198 |
MC33198
9
MC33198
This resistor will reduce in some way the charge pump
output voltage available for the MOSFET, but the device will
still provide enough Gate-to-Source voltage to maintain the
MOSFET on in good conditions. The resistor will mainly act as
an additional discharge current, which will reduce the
switching off time of the overall application. See the table 2
below and figure 11
which show the pin 4 voltage depending
on the additional gate resistor and the off switching time due
to this resistor.
If a very low switching time is needed, the resistor has to
be extremely low, resulting in low gate voltage not high
enough to ensure proper MOSFET operation. In this case, a
logic level MOSFET can be used. Logic level will operate with
Vgs of 5V with the same performance as a standard MOSFET
having a 12V Vgs. Care should be taken regarding maximum
gate to source voltage of a logic level MOSFET. An additional
zener might be necessary to prevent gate oxyde damages.
Table 2
Switching Off Characteristics with
MOSFET Additional Gate Resistor
NOTE 1 :
Time from negative edge of input signal (Pin 7) to negative edge
of gate voltage (Pin 4) measured at 5V threshold.
NOTE 2 :
Gate discharge time, not LOAD switching OFF time.
NOTE 3 :
TMOS used is Motorola MTP50N06, load 10
resistor.
Rgate
VCC (V)
Vgate (V)
Toff
No R
7
16
450
10
23
700
14
28
750
20
34
780
68 k
7
14
160
10
22
230
14
27
230
20
33
220
39 k
7
13
100
10
21
160
14
26
160
20
32
150
15 k
7
11
30
10
17,5
50
14
24
50
20
28,5
50
Reverse Battery
The device does not sustain reverse battery operation for
Vcc voltage greater than - 0,6V in magnitude. In application,
pin 5 should be protected from reverse battery by connecting
a diode in series with the V
bat
line.
Figure15.
Pin 2 which is normally connected to resistor, can sustain
reverse battery operation, providing that the DRN resistor is
higher than 3,3K. A 1K resistor at pin 1 is also necessary to
limit the reverse current flowing through the MOSFET body
diode.
Figure16.
MC33198 Gnd Disconnection Circuitry
Operation
When module Gnd is disconnected and if VBAT
connection is still present, pin 3 of MC33198 goes to about 2/3
of V
bat
if additional circuitry is not inserted.
With R1/Q1, Gate/Source voltage of MOSFET is shorted
as soon as pin 3 voltage rises above Gnd level.
C
7 INPUT
6 STATUS
Vbat
Vbat
LOAD
4
2
R
drn
GATE
1 K
DRN
5
SOURCE 1
TI8
GND
3
VCC
C
7
6
Vbat
LOAD
4
R1
5
1
3
8
MC33198
5V
Q1
Vbat
R1 = 3,3K
Q1 = 2N2222
IN
Additional circuitry
to present MOSFET
turn-on in case of module
Gnd disconnection
Device drive
circuitry and
interface
Module Gnd
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相关PDF资料 |
PDF描述 |
|---|---|
| MC33199 | ISO 9141 Serial Link Driver(ISO-9141串行链路驱动器) |
| MC33285 | Dual High Side TMOS Driver(双高端TMOS驱动器) |
| MC33286 | Dual High Side Driver(双高端驱动器) |
| MC33287 | Contact Monitoring and Dual Low Side Protected Driver(接触监测及双低端保护驱动器) |
| MC33288 | Solid State Relay for Automotive Flasher Applications(固态继电器,适用于自动闪光器) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC33198 | 制造商:SPC Multicomp 功能描述:PTC Resettable Fuse |
| MC33198D | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Automotive High-Side TMOS Driver |
| MC33199 | 制造商:SPC Multicomp 功能描述:RESETTABLE FUSE 60V 1.1A |
| MC33199D | 功能描述:DRV AUTO ISO 9141 SER LNK 14SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,000 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
| MC33199DR2 | 功能描述:IC DRVR SER INK ISO9141 14-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,000 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。