SI9145 Vishay, SI9145 Datasheet - Page 3

• Manufacturer Part Number: SI9145
• Description: Low-voltage Switchmode Controller
• Manufacturer: Vishay

Notes
a.
b.
c.
Document Number: 70021
S-40710—Rev. K, 19-Apr-04
SPECIFICATIONS
Error Amplifier (C
Input Bias Current
Open Loop Voltage Gain
Offset Voltage
Unity Gain Bandwidth
Output Current
Output Current
Power Supply Rejection
UVLO
Under Voltage Lockout
Under Voltage Lockout
Hysterisis
UVLO Input Current
Output
Output High Voltage
Output Low Voltage
Peak Output Current
Peak Output Current
Logic
ENABLE Delay to Output
ENABLE Logic Low
ENABLE Logic High
ENABLE Input Current
MODE SELECT Logic Low
MODE SELECT Logic High
MODE SELECT Input Current
Over Temperature Sense
Trip Point
Output Low Voltage
Output High Voltage
Supply
Supply Current
Supply Current − Normal Mode
Supply Current − Standby Mode
C
The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
Guaranteed by design, not subject to production testing.
STRAY
SET
Parameter
< 5 pF on C
Voltage Monitor
Normal Mode
c
OSC
c
OSC
. After Start-Up, V
= GND, OSC DISABLED)
Symbol
V
V
I
V
V
SOURCE
V
V
UVLOHL
UVLOLH
I
I
T
P
V
V
MODEL
MODEH
A
I
V
MODE
V
UVLO
V
td
V
SINK
OTSH
BW
OTSL
I
I
I
I
I
TRIP
VOL
SRR
HYS
ENH
FB
EA
EA
ENL
EN
DD
DD
OS
OH
OL
EN
DD
of w 3 V.
V
V
DD
Unless Otherwise Specified
Unless Otherwise Specified
DD
= 2.7 V, f
= 7 V, f
Source (V
2.7 V v V
2.7 V v V
ENABLE Rising to OUTPUT
V
Sink (V
MODE SELECT = 0 to V
V
V
V
DD
V
V
V
DD
DD
DD
UVLO
UVLO
Test Conditions
Test Conditions
NI
DD
DD
V
ENABLE = 0 to V
2.7 V < V
OSC
= 2.7 V, I
V
UVLOLH −
= 2.7 V, I
OSC
= V
= 2.7 V, V
= 2.7 V, I
ENABLE = Low
= 2.7 V, V
= 2.7 V, I
UVLO
GND = P
GND = P
FB
V
FB
SET
SET
DD
DD
REF
= 1 MHz, R
NI
= 1 MHz, R
= 2 V, NI = V
= 1 V, NI = V
= 0 to V
v 7 V, V
v 7 V, V
= V
, V
High to Low
Low to High
DD
OUT
OUT
OUT
V
OUT
OUT
FB
REF
OUT
GND
GND
UVLOHL
< 7.0 V
= −10 mA
= 10 mA
= 1.0 V
= −1 mA
= 1 mA
= 2.7 V
DD
OSC
= 0 V
DD
DD
DD
OSC
REF
= V
= V
REF
DD
= 6.98 kW
= 6.98 kW
)
S
S
)
a
a
0.8 V
0.8 V
Min
−100
−1.0
0.85
2.55
−1.0
−1.0
2.55
−15
150
0.4
47
DD
DD
b
B Suffix − 25 to 85_C
Vishay Siliconix
Limits
Typ
−180
−2.0
2.60
0.06
0.06
200
200
150
250
0.8
1.0
1.2
1.5
2.6
1.1
1.6
55
10
60
0
0.2 V
0.2 V
Max
−130
−1.0
1.15
0.15
0.15
100
330
1.0
1.0
1.0
1.5
2.3
15
www.vishay.com
Si9145
DD
DD
b
Unit
MHz
mV
mA
mA
mV
mA
mA
mA
mA
mA
dB
dB
nA
mA
mA
_C
mA
ns
V
V
V
V
V
V
V
V
V
V
3