SRP Hitachi Semiconductor, SRP Datasheet - Page 7

• Manufacturer Part Number: SRP
• Description: High Speed Current Mode PWM Control IC for Switching Power Supply
• Manufacturer: Hitachi Semiconductor

Electrical Characteristics
(The condition is: Ta = 25°C, V
Reference Part
Item
Reference output voltage
Line regulation
Load regulation
Output short current
Temperature stability
Output noise voltage
Notes: 1. Reference value for design.
Triangular Wave Oscillator Part
Item
Typical oscillating frequency
Maximum oscillating
frequency
Supply voltage dependency of
oscillating frequency
Temperature dependency of
oscillating frequency
Discharge current of C
Low level threshold voltage
High level threshold voltage
Triangular wave amplitude
Notes: 1. Reference value for design.
HA17384SPS/SRP, HA17384HPS/HRP, HA17385HPS/HRP
T
Symbol
Vref
Regline
Regload
los
V
Vref
N
Symbol
fosc Typ
fosc Max
Isink
V
V
fosc 1
fosc 2
TLCT
THCT
V
CT
CT
IN
Min
4.9
—
—
–30
—
—
= 15 V, C
Min
47
500
—
—
7.5
—
—
—
Typ
5.0
20
10
–100
80
100
Typ
52
—
8.4
1.2
2.8
1.6
T
0.5
5.0
Max
5.1
50
25
–180
—
—
= 3300 pF, R
Max
57
—
—
9.3
—
—
—
2.0
Unit
V
mV
mV
mA
ppm/ C
V
Unit
kHz
kHz
%
%
mA
V
V
V
T
= 10 k without notice)
Test Condition
Io = 1 mA
12 V
–1 mA
Vref = 0V
Io = –1 mA,
–20 C
10 Hz
Test Condition
C
R
12 V
–20 C
V
CT
V
T
T
= 3300 pF,
= 10 k
CT
= 2.0 V
V
= V
fnoise
IN
Ta
Io
V
IN
THCT
Ta
25 V
–20 mA
105 C
25 V
– V
10 kHz
105 C
TLCT
Note
1
1
1
1
Note
1
1
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