HA16107P/FP, HA16108P/FP
PWM Switching Regulator for
High-performance Voltage Mode Control
REJ03F0141-0400
(Previous: ADE-204-012C)
Rev.4.00
Jun 15, 2005
Description
The IC products in this series are primary control switching regulator control IC’s appropriate for obtaining stabilized
DC voltages from commercial AC power.
These IC’s can directly drive power MOS FET’s, they have a timer function built in to the secondary overcurrent
protection, and they can perform intermittent operation or delayed latched shutdown as protection operations in unusual
conditions. They can be used to implement switching power supplies with a high level of safety due to the wide range
of built-in functionality.
Functions
•
•
•
•
•
•
•
•
•
•
6.45 V reference voltage
Triangle wave generator
Error amplifier
Under voltage lockout protector
PWM comparator
Pulse-by-pulse current limitting
Timer-latch current limitting (HA16107)
ON/OFF timer function (HA16108)
Soft start and quick shutdown
Output circuit for power MOS FET driving
Features
•
•
•
•
•
•
Operating frequencies up to a high 600 kHz
Built-in pre-driver circuit for driving power MOS FET
Built-in timer latch over-current protection function (HA16107)
The OCL enables intermittent operation by an ON/OFF timer for prevention of secondary overcurrent. (HA16108)
The UVL function (under voltage lockout) is applied to both Vin and Vref.
ON/OFF reset: an auto-reset function which is based on the time constant of an external capacitor and observation
of drops in Vin.
•
Since the over-voltage protection function OVP (the TL pin) only observes voltage drops in Vin, it is possible to use
the OVP and ON/OFF pin for independent purposes.
•
Built-in 34 V Zener diode between Vin and ground.
Rev.4.00 Jun 15, 2005 page 1 of 39
HA16107P/FP, HA16108P/FP
Ordering Information
Typical Threshold Voltage
Product
HA16107P
HA16107FP
HA16108P
HA16108FP
UVL1
Hi: 16.2 V
Lo: 9.5 V
Hi: 16.2 V
Lo: 9.5 V
OVP
7.0 V
Notes
Timer latch protection
Package Code
(Previous Code)
DP-16
PRSP0016DH-A
(FP-16DA)
DP-16
PRSP0016DH-A
(FP-16DA)
Hi: 7.0 V
Lo: 1.3 V
On-off timer
protection
Pin Arrangement
V
IN
OUT
CL(+)
V
E
CL(−)
R
T1
C
T
R
T2
1
2
3
4
5
6
7
8
(Top view)
Notes: 1. In the SOP package models (HA16107FP and HA16108FP) pins 4, 5, and 13 are connected
inside the IC. However, all must be connected to the system ground.
2. Pin 16 is TL (HA16107), ON/OFF (HA16108).
16
15
14
13
12
11
10
9
Note 2
TL, ON/OFF
E/O
IN(−)
NC
GND
IN(+)
ST
Vref
Note 1
Rev.4.00 Jun 15, 2005 page 2 of 39
HA16107P/FP, HA16108P/FP
Pin Functions
•
HA16107P, HA16108P
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
V
IN
OUT
CL (+)
V
E
CL (–)
R
T1
C
T
R
T2
Vref
ST
IN (+)
GND
NC
IN (–)
E/O
TL, ON/OFF
Symbol
Input voltage
Pulse output
Current limiter
Output ground
Current limiter
Timing resistor (rising time)
Timing capacitor
Timing resistor (falling time)
Reference voltage output
Soft start
Error amp (+) input
Ground
NC
Error amp (–) input
Error output
Timer latch (HA16107), ON/OFF (HA16108)
Pin Functions
•
HA16107FP, HA16108FP
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
V
IN
OUT
CL (+)
GND
GND
R
T1
C
T
R
T2
Vref
ST
IN (+)
GND
GND
IN (–)
E/O
TL, ON/OFF
Symbol
Input voltage
Pulse output
Current limiter
Ground
Ground
Timing resistor (rising time)
Timing capacitor
Timing resistor (falling time)
Reference voltage output
Soft start
Error amp (+) input
Ground
Ground
Error amp (–) input
Error output
Timer latch (HA16107), ON/OFF (HA16108)
Pin Functions
Rev.4.00 Jun 15, 2005 page 3 of 39
HA16107P/FP, HA16108P/FP
Function and Timing Chart
Triangle Waveform and PWM Output
•
Timing chart (during normal operation)
V
TH
4.2 V typ
E/O
C
T
Triangle waveform
is output to C
T
pin
2V
BE
0V
V
IN
0V
V
TL
2.2 V typ
V
RT2
OUT
Dead band
t
DB
•
Oscillator equivalent circuit
9
×
2
×
2
R
T2
×
2
8
I
1
I
1
I
2
V
RT2
t
ON
Vref
(connected internally)
−
+
6
R
T1
C
T
7
2I
2
×
2
0.6 V
Comparator for
triangle waveform
oscillation
−
+
The
×
2s are transistors whose emitter area is doubled.
Vref
−
2V
BE
R
T1
Vref
−
2V
BE
I
2
=
R
T2
I
1
=
t
DB
=
t
ON
≈
C
T
×
R
T1
×
2V
≈
0.4
×
C
T
×
R
T1
(s)
Vref
−
2V
BE
R
T2
t
DB
(s)
2R
T1
−
R
T2
Du max =
f
OSC
≈
R
T2
2R
T1
1
−
Du max
(Hz)
t
DB
Note: When f
OSC
is high, the actual value will differ from that given by the formula due to the delay time.
Determine the correct constants after constructing a test circuit.
Rev.4.00 Jun 15, 2005 page 5 of 39
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