SRP Hitachi Semiconductor, SRP Datasheet - Page 10

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

HA17384SPS/SRP, HA17384HPS/HRP, HA17385HPS/HRP
Electrical Characteristics (cont)
UVL Part
Item
Threshold voltage for
high V
Threshold voltage for
low V
V
Vref UVL threshold voltage
Notes: 1. For the HA17384S/H.
Total Characteristics
Item
Operating current
Standby current
Current of latch
Power supply zener
voltage
Overheat protection
starting temperature
Notes: 1. These values are not prescribe to the HA17384SPS/SRP because OVP function is not included.
10
IN
UVL hysteresis voltage
IN
IN
level
2. For the HA17385H.
2. V
2. These values are not prescribe to the HA17384SPS/SRP because TSD function is not included.
4. Reference value for design.
level
IN
= 8.5 V in case of the HA17384H.
Symbol
I
I
I
V
Tj
IN
STBY
LATCH
INZ
TSD
Symbol
V
V
V
V
TH UVL
TL UVL
HYS UVL
T Vref
Min
7.0
120
200
31
—
Typ
10.0
170
270
34
160
Min
14.5
7.6
9.0
6.8
5.0
0.6
4.3
Typ
16.0
8.4
10.0
7.6
6.0
0.8
4.7
Max
13.0
230
340
37
—
Max
17.5
9.2
11.0
8.4
7.0
1.0
Vref
Unit
mA
V
C
A
A
Unit
V
V
V
V
V
V
V
Test Condition
C
Current at start up
V
I
IN
FB
L
+ 2.5 mA
= 1000 pF, V
= 0 V after V
Test Condition
Turn-ON voltage
when V
Minimum operating
voltage after turn-ON
V
Voltage is forced toVref
terminal
HYS UVL
= V
IN
is rising
TH UVL
FB
FB
= V
= V
– V
CS
OVP
= 0 V
TL UVL
Note
1
2
1
2
1
2
Note
1, 2
3, 4