SA5901
(Continued)
Characteristics
SPRT pin current 1 E0=H
SPRT pin current 2 OFF=L
SPRT
voltage)
SPRT pin impedance
SPRT pin threshold voltage
Over-voltage protection detect
Transistor driving section
pin
current
3
(over-
Symbol
I
SPR1
I
SPR2
I
SPR3
RSPR
Test conditions
EI=0.7V
EI=1.3V, OFF=0V
EI=1.3V, BATT=9.5V
Min. Typ. Max. Unit
6
12
12
10
20
20
16
32
32
265
µA
µA
µA
kΩ
V
V
Test
circuit No
Test
circuit 1
Test
circuit 1
Test
circuit 1
Test
circuit 1
Test
circuit 1
Test
circuit 1
32
33
34
35
36
37
175 220
V
SPTH
EI=0.7V, CT=0V
V
HVPR
BSEN pin voltage
1.10 1.20 1.30
8.0
8.4
9.0
BATT=CT=1.5V
SW pin output voltage 1H
VSW1H VSYS1=VSYS2=0V
IO=2mA, at starter
SW pin output voltage 2H
SW pin output voltage 2L
VSW2H
CT=0V, IO=-10mA, EI=0.7V,
SPRT=0V
1.0 1.50
--
0.3
--
0.45
V
V
0.78 0.98 1.13
V
Test
circuit 1
Test
circuit 1
Test
circuit 1
Test
circuit 3
Test
circuit 3
Test
circuit 3
Test
circuit 3
Test
circuit 3
Test
circuit 3
Test
circuit 3
Test
circuit 1
Test
circuit 1
38
39
40
VSW2L CT=2V, IO=10mA
CT=470pF,
SW pin oscillating frequency 1
f
SW1
VSYS1=VSYS2=0V,
at starter
65
80
95
KHz
41
SW pin oscillating frequency 2
SW pin oscillating frequency 3
SW pin minimum pulse width
Pulse duty at start
Max. pulse duty at seld-runing
Max.
pulse
duty
at
CLK
f
SW2
f
SW3
TSWMIN
DSW1
DSW2
CT=470pF, CLK=0V
CT=470pF
CT=470pF,
sweep
CT=470pF,
VS
YS1
=V
SYS2
=0V
EI=0.7V,
CLK=0V
CT=470pF,
E0=0.5→0.7V
60
--
0.01
40
70
65
70
88.2
--
50
80
75
82
--
KHz
KHz
42
43
44
45
46
47
0.6 Usec
60
90
85
%
%
%
synchronization
Dead time section
DEAD pin impedance
DEAD pin output voltage
DSW3 EI=0.7V, CT=470pF
RDEAD
V
DEAD
52
65
78
KΩ
V
48
49
0.78 0.88 0.98
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.3
2006.02.27
Page 5 of 24
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
