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Спецификация HA16654 изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «PWM Controlled Switching Regulator». |
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Детали детали
Номер произв | HA16654 |
Описание | PWM Controlled Switching Regulator |
Производители | Hitachi Semiconductor |
логотип |
15 Pages
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HA16654A, HA16664A Series
PWM Controlled Switching Regulator
The HA16654A and HA16664A are PWM control switching regulator ICs which drive a power MOSFET
at high speed and high frequency. The standby current is limited to as small as 1.5 mA (typ). These
devices incorporate totem pole circuits suited for high-speed push-pull operation at the output stage,
accomplishing high-speed switching with rising time tr = 80 ns (typ) and falling time tf = 40 ns (typ) at 20
V swing.
Functions
• Reference voltage circuit
• Triangular waveform oscillation circuit
• PWM comparator circuit
• Low-input malfunction protection circuit
• Output drive circuit
• Soft start and quick shut down
Features
• High speed switching: tr = 80 ns, tf = 40 ns (typ) when use exernal driver circuit
• High frequency operation:
HA16654A (f = 100 kHz to 500 kHz)
HA16664A (f = 100 kHz to 200 kHz)
Low power dissipation : 2 mA max in standby state
• 5 V reference voltage
• Low-input malfunction protection (High threshold voltage: 10 V Typ, Low threshold voltage: 8 V
Typ)
• Adjustable dead band width
• Enlarged output pulse width control range (0 to 80%)
• Soft start and quick shut down functions
• Single output: totem pole
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HA16654A, HA16664A Series
Ordering Information
Type No.
HA16654APS
HA16654AFP
HA16664APS
HA16664AFP
Operating Frequency
100 kHz to 500 kHz
100 kHz to 200 kHz
Package
DP-8
FP-14DA
DP-8
FP-14DA
Pin Arrangement
• HA16654APS,HA16664APS
CT 1
RT 2
Vref 3
VIN 4
8 EI
7 DB
6 GND
5 OUT
(Top view)
• HA16654AFP,HA16664AFP
NC 1
NC 2
CT 3
RT 4
Vref 5
VIN 6
NC 7
14 NC
13 NC
12 EI
11 DB
10 GND
9 OUT
8 NC
(Top view)
Table 1
Symbol
CT
RT
Vref
VIN
EI
DB
GND
OUT
Pin Function
Pin Name
Timing capacitor
Timing resistor
Reference voltage
Input voltage
Error input
Dead band
Ground
Driver output
2
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Block Diagram
HA16654A, HA16664A Series
RT 2
CT 1
Vref 3
VIN 4
To under
voltage
lockout
Oscillator
DB
7
EI
8
To Vref
PWM
Compa-
rator
To internal
circuitry
Reference
Regulator
Under Voltage
Lockout
(Hysteresis Type)
VIN
5 OUT
6 GND
Output Stage
ERROR
INPUT
DB
CT
OUT
Figure 1 Waveform Timing
3
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Номер в каталоге | Описание | Производители |
HA16654 | PWM Controlled Switching Regulator | Hitachi Semiconductor |
HA16654A | PWM Controlled Switching Regulator | Hitachi Semiconductor |
HA16654AFP | PWM Controlled Switching Regulator | Hitachi Semiconductor |
HA16654APS | PWM Controlled Switching Regulator | Hitachi Semiconductor |
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DataSheet26.com | 2020 | Контакты | Поиск |