參數(shù)資料
型號： TLE6711
廠商： INFINEON TECHNOLOGIES AG
英文描述： Multifunctional Voltage Regulator and Watchdog
中文描述： 多功能穩(wěn)壓器和看門狗
文件頁數(shù)： 17/28頁
文件大?。?/td> 265K
代理商： TLE6711
Data Sheet V 2.22
17
2001-04-23
TLE 6711
Circuit Description
Figure 6
Boost Converter Block Diagram
Figure 7
shows the most important waveforms during operation; for low, medium and
high loads up to overload condition. The output transistor is switched off immediately if
the overcurrent comparator detects an overcurrent level at the power DMOS or if the
sense output switches to low induced by a
V
BOOST
undervoltage command.
The
TLE 6711
is also protected against several boost loop errors
:
In case of a feedback interruption a pull up current source (
I
FB
typ. 0.4
μ
A), integrated at
pin BOFB pulls the voltage at the feedback pin BOFB above the reference voltage. The
boost output is switched off by the high error voltage which controls the
PWM-Comparator at a
z
ero duty cycle.
In the case of a resistive loop error caused by leakage currents to ground, the boost
output voltage would increase to very high values. In order to protect the
V
BOOST
input as
well as the external load against catastrophic failures, an overvoltage protection is
provided which switches the output transistor off as soon as the voltage at pin
V
BOOST
exceeds the internal fixed overvoltage threshold
V
BOOVOFF
=
typ. 37 V.
AEB02946
Pin 1
R
V
min
t
f
r
t
r
t
t
Oscillator
V
max
V
low
t
r
t
r
f
t
high
Schmitt-trigger 1
Ramp
V
t
Clock
Error-Ramp
Error-Signal
PWM
COMP
+
-
Error-Ramp
Error-Signal
<
H when
=
V
2.8 V
GND
Error
AMP
-
+
Pin 12
BOFB
Pullup
I
μ
A
10
=
GND
COMP
+
-
UV
thUV
V
Boost
V
GND
38 V
V
=
COMP
OV
-
+
NOR 1
1
&
OV at
L when
Boost
V
NAND 3
L when
> 175 C
T
j
H when
Overcurrent
H when
V
< 4 V
Boost
H when
> 175 C
or OV at
T
V
Boost
NAND1
&
&
Error-FF
&
R
Q
S
Q
L when
Error
NOR 2
1
Error
H when
Error
Gate
Unlock
Detector
NAND 2
&
Q
R
&
S
Q
&
PWM-FF
H =
OFF
H =
ON
1
INV
D-MOS
Power
Gate
Driver
+
COMP
-
OC
V
18 mV
=
14.5 m
R
Pin 13
BOGND
H when Outputcurrent > 1.2 A
OVL
Pin 11
GND
BOI
Pin 14
Boost Status
Low if Battery
Disconnected
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參數(shù)描述
TLE6711_07 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Multifunctional Voltage Regulator and Watchdog
TLE6711G 功能描述:直流/直流開關(guān)調(diào)節(jié)器 MULTIFUNCTIONAL VOLT REGULATOR/WATCHDOG RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TLE6711GL 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Multifunctional Volt Regulator & Watchdog RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TLE6711GLXUMA1 制造商:Infineon Technologies AG 功能描述:Multifunctional Voltage Regulator and Watchdog 20-Pin DSO 制造商:Infineon Technologies AG 功能描述:DC/DC CONVERTER - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC REG BUCK BOOST ADJ DSO20
TLE6711GXUMA1 制造商:Infineon Technologies AG 功能描述:DC/DC CONVERTER - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC REG BUCK BOOST ADJ PDSO14
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