SI9113 Datasheet, PDF (6/10 Pages) Vishay Siliconix – High-Voltage Current Mode PWM Controller for ISDN Power Supplies

Si9113
Vishay Siliconix
New Product
PIN CONFIGURATION
STOP ₁
V_{IN 2}
SENSE 3
PWR_GOOD 4
–V_{IN 5}
DRIVER 6
V_CC 7
SOIC-14
Si9113
14 ^START
13 ^COMP
12 FB
11 VREF
10 ^SS
9 OSCOUT
8 OSCIN
Top View
ORDERING INFORMATION
Part Number Temperature Range
Package
Si9113DY
Si9113DY-T1
–40 to 85_C
Bulk
Tape and Reel
Eval Kit
Si9113D1
Si9113D2
Temperature Range Board Type
–10 to 70_C
Surface Mount and
Thru-Hole
PIN DESCRIPTION
Pin Number
Name
Function
1
STOP
Set up the stop threshold of +V_IN for V_CC via resistive dividers
2
+V_IN
Input voltage to UVLO and Start-Up circuitry
3
SENSE
Current sense amplifier input for current mode control and OCP.
4
PWR_GOOD Logic high PWR_Good signal indicates FB voltage is within regulation.
5
–V_IN
Ground pin
6
DRIVER
MOSFET gate drive signal.
7
V_CC
Supply voltage to internal circuitry and MOSFET gate drive.
8
OSC_IN
R_OSC terminal
9
OSC_OUT
R_OSC terminal, square waveform output
10
SS
Soft-Start, time programmed by capacitor value.
11
V_REF
1.3-V reference. Decoupled with 0.1-mF capacitor.
12
FB
Inverting input of an error amplifier.
13
COMP
Error amplifier output for external compensation network.
14
START
Set up the start threshold of +V_IN for V_CC via resistive dividers
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Document Number: 71093
S-99453—Rev. A . 29-Nov-99