SI9137LG Vishay, SI9137LG Datasheet - Page 3

• Manufacturer Part Number: SI9137LG
• Description: IC, PWM AND PSM CONVERTER CTRL, SSOP-28
• Manufacturer: Vishay

Specifications of SI9137LG

• Primary Input Voltage: 15V
• No. Of Outputs: 5
• Output Voltage: 12V
• Output Current: 1A
• No. Of Pins: 28
• Operating Temperature Range: 0°C To +90°C
• Power Dissipation Pd: 762mW
• Termination Type: SMD
• Duty Cycle (max): 95 %
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Switching Frequency: 330 KHz
• Maximum Operating Temperature: + 90 C
• Minimum Operating Temperature: 0 C
• Synchronous Pin: No
• Topology: Boost, Buck, Flyback
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Notes
a.
b.
Document Number: 70874
S-40808—Rev. C, 26-Apr-04
SPECIFICATIONS
Reference
REF Output
REF Load Regulation
Supply Current
Supply Current*Shutdown
Supply Current*Operation
Oscillator
Oscillator Frequency
Maximum Duty Cycle
Fault Detection 3.3-V and 5-V Outputs
Overvoltage Trip Threshold
Overvoltage-Fault Propagation Delay
Output Undervoltage Threshold
Output Undervoltage Lockout Time
RESET
RESET Start Threshold
RESET Propagation Delay (Falling)
RESET Delay Time (Rising)
Inputs and Outputs
Feedback Input Leakage Current
Input Leakage Current
Gate Driver Sink/Source Current (Buck)
Gate Driver On-Resistance (Buck)
Gate Driver Sink/Source Current (Flyback)
Gate Driver On-Resistance (Flyback)
RESET Output Low Voltage
RESET High Voltage Leakage
RUN/STOP
V
V
IL
IH
The algebraic convention is used whereby the most negative value is a minimum and the most positive a maximum.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing, and are measured at T
Parameter
Falling Edge, FB3 or FB5 Driven 2% Above Overvoltage
CS3 or CS5 Driven 2% Above Overvoltage Trip Thresh-
RUN/STOP = GND, All Converters OFF, No Load
With Respect to 2nd SMPS Lockout Time Done
or 2% Below Undervoltage Lockout Thresholds
All Controllers ON, No Load, f
With Respect To Unloaded Output Voltage
With Respect To Unloaded Output Voltage
With Respect to Unloaded Output Voltage
T
DL3, DH3, DL5, DH5 Forced to 2 V
A
RUN/STOP, SEQ, V
= 0_C to 90_C, All Controllers ON
V
IN
DHFY, DLFY Forced to 2 V
From each SMPS Enabled
= 15 V , I
Test Conditions
RESET, I
No External Load
FBFY = 3.3 V
RESET = 5 V
Rising Edge
High or Low
High or Low
0 to 1 mA
VL
old
SINK
= I
REF
IN
= 4 mA
= 0 V or V
= 0 mA
OSC
= 300 kHz
L
Min
3.24
270
−40
2.4
92
16
92
6
A
a
= 25_C.
Limits
Typ
Vishay Siliconix
1100
3.30
−5.5
300
−30
107
1.5
1.5
0.2
30
25
95
10
20
1
2
b
Max
1800
3.36
330
−20
122
"1
0.4
0.8
75
60
14
24
15
1
7
1
www.vishay.com
Si9137
a
Unit
kHz
mV
ms
ms
mA
mA
mA
mA
mA
ms
ms
%
%
%
%
V
A
W
A
W
V
V
V
3