7430 PDF даташит
Спецификация 7430 изготовлена «Holtek Semiconductor Inc» и имеет функцию, называемую «Negative Voltage Regulator». |
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Детали детали
Номер произв | 7430 |
Описание | Negative Voltage Regulator |
Производители | Holtek Semiconductor Inc |
логотип |
7 Pages
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HT74XX
Negative Voltage Regulator
Features
· Low power consumption
· Low voltage drop
· Low temperature coefficient
· High input voltage (up to -24V)
· High output current : 100mA (Pd £ 250mW)
· TO-92 and SOT-89 package
Applications
· Battery-powered equipment
· Communication equipment
· Audio/Video equipment
General Description
The HT74XX series is a set of three-terminal
high current high voltage regulator imple-
mented in CMOS technology. They can deliver
100mA output current and allow an input volt-
age as high as -24V. They are available with
several fixed output voltages ranging from
-2.4V to -15V. CMOS technology ensures low
voltage drop and low quiescent current.
Although designed primarily as fixed voltage
regulators, these devices can be used with ex-
ternal components to obtain variable voltages
and currents.
Selection Table
Part No.
HT7430
HT7450
Output Voltage
-3.0V
-5.0V
Tolerance
±5%
±5%
1 January 26, 2000
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Block Diagram
VIN
ref
GND
Pin Assignment
TO-92
SOT-89
HT74XX Front View
HT74XX
VOUT
VOUT GND VIN
GND VIN VOUT
Bottom View
Pad Assignment
(0 ,0 )
1 23
Pad Coordinates
Pad No.
1
2
3
X
-571.75
175.75
592.25
Unit: mm
Y
-578.00
-545.50
-545.50
Chip size: 1550 ´ 1562 (mm)2
* The IC substrate should be connected to VDD in the PCB layout artwork.
Absolute Maximum Ratings
Supply Voltage.............................+0.3V to -26V
Power Consumption.............................. 250mW
Storage Temperature.................-50°C to 125°C
Operating Temperature ..................0°C to 70°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maxi-
mum 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 expo-
sure to extreme conditions may affect device reliability.
2 January 26, 2000
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HT74XX
Electrical Characteristics
HT7430, -3.0V output type
Ta=25°C
Symbol
VOUT
IOUT
DVOUT
VDIF
ISS
DVOUT
DVIN ´ VOUT
VIN
DVOUT
DTa
Parameter
Output Voltage Tolerance
Output Current
Test Conditions
VIN Conditions
-5V IOUT=10mA
-5V ¾
Min. Typ. Max. Unit
-2.85 -3.0 -3.15 V
60 100 ¾ mA
Load Regulation
Voltage Drop
Current Consumption
-5V 1mA£IOUT£50mA ¾ 60 120 mV
¾ IOUT=1mA
¾ 100 ¾ mV
-5V No load
¾ 200 350 mA
Line Regulation
¾
-4V£VIN£-12V
IOUT=1mA
¾ 0.2 ¾ %/V
Input Voltage
¾¾
¾ ¾ -24 V
Temperature Coefficient
-5V
IOUT=10mA
0°C<Ta<70°C
¾ ±0.45 ¾ mV/°C
HT7450, -5.0V output type
Symbol
Parameter
VOUT
IOUT
DVOUT
VDIF
ISS
DVOUT
DVIN ´ VOUT
VIN
DVOUT
DTa
Output Voltage
Output Current
Load Regulation
Voltage Drop
Current Consumption
Line Regulation
Input Voltage
Temperature Coefficient
Ta=25°C
Test Conditions
VIN Conditions
-7V IOUT=10mA
-7V ¾
Min. Typ. Max. Unit
-4.75 -5.0 -5.25 V
100 150 ¾ mA
-7V 1mA£IOUT£30mA ¾ 60 150 mV
¾ IOUT=1mA
¾ 100 ¾ mV
-7V No load
¾ 330 500 mA
¾
-6V£VIN£-15V
IOUT=1mA
¾¾
¾ 0.2 ¾ %/V
¾ ¾ -24 V
-7V
IOUT=10mA
0°C<Ta<70°C
¾ ±0.75 ¾ mV/°C
3 January 26, 2000
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