HT71A5033 [HOLTEK]
TinyPower LDO with Detector; TinyPower LDO与检测
| 型号： | HT71A5033 |
| 厂家： | 
HOLTEK SEMICONDUCTOR INC |
| 描述： | TinyPower LDO with Detector |
| 文件： | 总6页 (文件大小：56K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HT71AXXXX
TinyPowerTM LDO with Detector
Features
·
·
Voltage detector includes hysteresis
Ultra-low supply current: 6mA typ.
·
·
Input voltage: 12V max.
High output voltage accuracy: ±3%
·
·
Low temperature coefficient
Package: SOT89-5
·
Voltage regulator output current: 30mA
Applications
·
·
Battery powered system
Audio/Video equipment
·
·
Communication equipment
Home application
General Description
The HT71AXXXX devices are CMOS technology volt-
age regulators which also include an internal voltage de-
tector. The functions of the voltage regulators include a
low dropout voltage, good output voltage accuracy as
well as the benefits of ultra-low supply current. The in-
clusion of a voltage detector function in the same device
reduce what would normally be a two chip solution to a
single chip solution resulting in reduced product costs.
For maximum application flexibility, the voltage detector
output is an N-channel open drain.
Selection Table
Detector
Voltage (VDF
Typical Current
Consumption (mA)
Maximum Regulator
Input Voltage Voltage
LDO Output
)
Current (mA)
Part No.
Tolerance Package
HT71A3324
HT71A3327
HT71A3344
HT71A5024
HT71A5027
HT71A5033
HT71A5042
HT71A5044
12V
12V
12V
12V
12V
12V
12V
12V
3.3V
3.3V
3.3V
5.0V
5.0V
5.0V
5.0V
5.0V
2.4V
2.7V
4.4V
2.4V
2.7V
3.3V
4.2V
4.4V
30
30
30
30
30
30
30
30
6
6
6
6
6
6
6
6
SOT89-5
SOT89-5
SOT89-5
SOT89-5
SOT89-5
SOT89-5
SOT89-5
SOT89-5
±3%
±3%
±3%
±3%
±3%
±3%
±3%
±3%
Rev. 1.00
1
December 29, 2009
HT71AXXXX
Block Diagram
V
I
N
V
O
U
T
A
m
p
V
R
E
F
V
S
E
N
G
N
D
A
m
p
H
y
s
t
e
r
e
s
i
s
V
D
E
T
Pin Assignment
V
S
E
N
V
D
E
T
5
4
1
2
3
V
O
U
T
V
I
N
G
N
D
H
T
7
1
A
x
x
x
x
S
(
O
T
8
9
-
5
-
A
T
o
p
V
i
e
w
)
Pin Descriptions
Pin No.
Pin Name
Description
1
2
3
4
5
VOUT
VIN
Regulated Voltage Output Pin
Power Supply Input Pin
Ground Pin
GND
VDET
VSEN
Voltage Detector Output Pin
Voltage Detector Input Sense Pin
Rev. 1.00
2
December 29, 2009
HT71AXXXX
Absolute Maximum Ratings
Supply Voltage ......................................-0.3V to 14.0V
VDET Output Voltage Pin ..........................-0.3V ~ 14V
Power Consumption ..........................................500mW
Operating Temperature ........................-40°C to +85°C
VSEN Input Voltage Pin.....................-0.3V ~ VIN+0.3V
VOUT Output Voltage Pin..................-0.3V ~ VIN+0.3V
Storage Temperature .........................-50°C to +125°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed
in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Electrical Characteristics
VIN=VSEN=VOUT+2.0V, unless otherwise specified, Ta=25°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VIN
Operating Input Voltage
12
V
¾
¾
¾
VOUT>VDET, VIN=VSEN=VOUT+2
OUT<VDET, VIN=VSEN=VDET+2
ISS
Supply Current
6
12
¾
mA
V
Voltage Regulator
VO
Output Voltage
VIN=VOUT+2, IOUT=10mA
VOUT-3%
20
VOUT
30
VOUT+3%
V
IOUT
Output Current
Load Regulation
Dropout Voltage
Line Regulation
mA
VIN=VOUT+2, DVO=3%
¾
VIN=VOUT+2,
DVO
60
100
0.2
100
¾
mV
mV
¾
¾
¾
1mA £ IOUT £ 30mA
DVDIF
DVO=2%, IOUT=1mA
D
V
O
I
OUT=1mA,
OUT+1 £ VIN £ 12V
%/V
¾
D
V
I
N
´
O
V
D
V
O
IOUT=10mA,
Temperature Coefficient
¾
±0.75
¾
mV/°C
D
T
a
-40°C £ Ta £ +85°C
Voltage Detector
VD
Detection Voltage
High to Low
VDF-3%
VDF+3%
V
V
VHYS
IOL
Hysteresis Width
¾
VDF´0.02 VDF´0.05 VDF´0.10
VIN=VSEN=2V, VDET=0.2V
Output Sink Current
0.5
1.0
mA
¾
¾
D
V
D
Temperature Coefficient
-40°C £ Ta £ +85°C
¾
±0.75
mV/°C
D
T
a
Note: The VDF is the detector voltage of the device. For more detailed information of the detector voltage for different
devices, refer to the preceding Selection Table.
Rev. 1.00
3
December 29, 2009
HT71AXXXX
Functional Description
The HT71Axxxx devices are a series of combined regu-
lator and detector devices. The voltage regulator part of
the devices have very low dropout voltage and low cur-
rent consumption and can supply up to 30mA of output
current. The output voltage is available in both 3.3V and
5V types. An input voltage of up to 12V can be accepted
on their input pin.
sense voltage falls below the detect voltage the detector
output will switch low. The detector output is an open
drain NMOS type therefore users must connect an ex-
ternal pull-high resistor for correct operation. The volt-
age detectors consist of a high-precision and low power
consumption standard voltage source as well as a com-
parator, hysteresis circuit, and an output driver. CMOS
technology ensures low power consumption. Although
designed primarily as fixed voltage detectors, these de-
vices can be used with external components to detect
user specified threshold voltages.
The voltage detector part of the devices can detect an
externally supplied voltage on its sense pin. This exter-
nally supplied voltage will be compared with a fixed in-
ternal reference voltage which can have a range of fixed
voltages ranging from 2.4V to 4.4V. When the external
Application Circuits
4
7
W
0
k
V
V
D
S
D
V
D
E
T
E
V
N
O
U
T
V
I
N
2
V
I
N
1
C
O
U
T
C
I
N
G
N
D
2
m
. F 2
2
m
. F 2
Rev. 1.00
4
December 29, 2009
HT71AXXXX
Package Information
5-pin SOT89 Outline Dimensions
B
I
A
J
C
E
D
G
F
H
H
1
Dimensions in inch
Nom.
Symbol
Min.
0.173
0.055
0.091
0.035
0.155
0.013
0.014
¾
Max.
0.181
0.071
0.102
0.043
0.167
0.020
0.022
¾
A
B
C
D
E
F
¾
¾
¾
¾
¾
¾
G
H
H1
I
¾
1.52
¾
0.114
0.055
0.014
0.122
0.063
0.017
¾
J
¾
Dimensions in mm
Nom.
Symbol
Min.
4.39
1.40
2.31
0.89
3.94
0.33
0.36
¾
Max.
4.60
1.80
2.59
1.09
4.24
0.51
0.56
¾
A
B
C
D
E
F
¾
¾
¾
¾
¾
¾
G
H
H1
I
¾
1.52
¾
2.90
1.40
0.36
3.10
1.60
0.43
¾
J
¾
Rev. 1.00
5
December 29, 2009
HT71AXXXX
Holtek Semiconductor Inc. (Headquarters)
No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan
Tel: 886-3-563-1999
Fax: 886-3-563-1189
http://www.holtek.com.tw
Holtek Semiconductor Inc. (Taipei Sales Office)
4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan
Tel: 886-2-2655-7070
Fax: 886-2-2655-7373
Fax: 886-2-2655-7383 (International sales hotline)
Holtek Semiconductor Inc. (Shenzhen Sales Office)
5F, Unit A, Productivity Building, No.5 Gaoxin M 2nd Road, Nanshan District, Shenzhen, China 518057
Tel: 86-755-8616-9908, 86-755-8616-9308
Fax: 86-755-8616-9722
Holtek Semiconductor (USA), Inc. (North America Sales Office)
46729 Fremont Blvd., Fremont, CA 94538
Tel: 1-510-252-9880
Fax: 1-510-252-9885
http://www.holtek.com
Copyright Ó 2009 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek as-
sumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used
solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable
without further modification, nor recommends the use of its products for application that may present a risk to human life
due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices
or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information,
please visit our web site at http://www.holtek.com.tw.
Rev. 1.00
6
December 29, 2009
相关型号：
©2020 ICPDF网 联系我们和版权申明