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參數(shù)資料
| 型號(hào)： | TDA3616 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Multiple voltage regulator with battery detection(帶電池檢測的多路輸出電壓穩(wěn)壓器) |
| 中文描述： | 多帶電池檢測電壓調(diào)節(jié)器（帶電池檢測的多路輸出電壓穩(wěn)壓器） |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 94K |
| 代理商： | TDA3616 |
2000 Jan 14
12
Philips Semiconductors
Objective specification
Multiple voltage regulator with battery
detection
TDA3616
A
PPLICATION CIRCUIT
In Fig.9 the total quiescent current equals I
q
+ I
Rdivider
.
The specified quiescent current equals I
q
. When the
supply voltage is connected, the regulator will switch-on
when the supply voltage exceeds 7.5 V. With a timing
capacitor connected to pin V
C
the reset can be delayed
(the timer starts at the same moment as the regulator is
switched on).
Forced reset can be accomplished by short-circuiting the
timer capacitor by using the push-button switch. When the
push-button is released again, the timer restarts (only
when the regulator is on) causing a second reset on both
RES1 and RES2.
The maximum output current of the regulator equals:
150
T
–
th(j-a)
V
P
V
REG
–
(
×
When T
amb
= 85
°
C and V
P
= 16 V, the maximum output
current equals 118 mA. At lower ambient temperature
(T
amb
< 0) the maximum output current equals 250 mA.
For successful operation of the IC (maximum output
current capability), special attention has to be paid to the
copper area required as heatsink (connected to
pins 1, 10, 11 and 20), the thermal capacity of the
heatsink and its ability to transfer heat to the external
environment.
It is possible to reduce the total thermal resistance from
120 K/W to 50 K/W).
Backup circuit
The backup function is used for supplying the regulator
and logic circuits (reset 1 and 2) when the supply voltage
is disconnected. For stability
a minimum capacitor value
of 150 nF
is needed.
With a supply voltage of 14.4 V the backup capacitor will
be fully charged until approximately 14.2 V. At the moment
the supply voltage is lower than the voltage on pin BU the
backup switch will be opened (this backup switch acts like
an ideal diode) and the charge of the backup capacitor is
used for supplying the regulator and the logic circuits.
The backup capacitor is mainly discharged by the load of
the regulator. After a certain period of time the regulator
output will be disabled and the backup capacitor will only
be discharged by the quiescent current of the IC itself.
In combination with the battery detection Schmitt trigger,
an early warning can be given to the microprocessor to
indicate that the battery voltage has dropped down to an
unacceptable low value, causing the microcontroller to run
on backup charge. The early warning level can be
programmed with resistors R1 and R2; see Fig.9.
I
O max
)
)
R
150
50
amb
V
P
(
5
–
)
×
-----------------T
=
=
handbook, full pagewidth
MGL931
TDA3616T
REG
RES1
RES2
(2) 15
(3) 16
VO(bat)
VI(bat)
VC
VP
(1) 14
7 (9)
(7) 5
4 (6)
6 (8)
forced reset
used for
8 V detector
17
(4)
BU
18
(5)
8 V detector
on/off
(closed = on)
R1
360 k
R2
100 k
CL
10
μ
F
2200
μ
F
CBU
1000
μ
F
(minimum value of 150 nF
needed for stability)
Cd
choke
coil
Fig.9 Typical application.
The pin numbers given in parenthesis refer to the TDA3616SF version.
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PDF描述 |
|---|---|
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| TDA3618JR | Multiple voltage regulator with switch and ignition buffers(帶開關(guān)和點(diǎn)火緩沖器的多路輸出穩(wěn)壓器) |
| TDA3653B | Vertical deflection and guard circuit(垂直偏轉(zhuǎn)與防護(hù)電路) |
| TDA3653C | Vertical deflection and guard circuit（110）(垂直偏轉(zhuǎn)與防護(hù)電路（90度）) |
| TDA3654 | Vertical deflection and guard circuit（90）(垂直偏轉(zhuǎn)與防護(hù)電路（110度）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA3616SF | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multiple voltage regulator with battery detection |
| TDA3616SF/N1 | 功能描述:低壓差穩(wěn)壓器 - LDO VOLTAGE REGULATOR RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TDA3616SF/N1,112 | 功能描述:低壓差穩(wěn)壓器 - LDO VOLTAGE REGULATOR RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TDA3616T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multiple voltage regulator with battery detection |
| TDA3616T/N1 | 功能描述:低壓差穩(wěn)壓器 - LDO CARRADIO POWER AMPS RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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