SI9113_04 Datasheet, PDF (3/13 Pages) Vishay Siliconix – High-Voltage Current Mode PWM Controller for ISDN Power Supplies

Si9113
Vishay Siliconix
SPECIFICATIONS^a
Parameter
Error Amplifier
Open Loop Voltage Gain^e
Input BIAS Current
Feedback Input Voltage
Dynamic Output Impedance^e
Unity Gain Bandwidth^e
Symbol
A_VOL
I_BIAS
V_FB
Z_OUT
BW
Output Current
Power Supply Rejection^e
Current Limit Comparator
I_OUT
PSRR
Test Conditions
Unless Otherwise Specified
V_CC = 10 V, +V_IN = 48 V, R_OSC = 390 kW
Temp^b
OSC IN = − V_IN
V_FB = 1.3 V
FB Tied to COMP, OSC IN = − V_IN
Source V_FB = 0.8 V
Sink V_FB = 1.8 V
Room
Room
Full
Room
Room
Room
Room
Room
Threshold Voltage
Delay to Output^e
Output Drive
Output High Voltage
Output Low Voltage
Rise Time
Fall Time
Supply
Supply Current
Supply Current UVLO Mode
V_SOURCE
t_d
V_OH
V_OL
t_r
t_f
I_CC
I_VIN
I_VIN
V_FB = 0 V
Full
V_SENSE = 0.85 V, See Figure 1
Full
I_OUT = −10 mA
I_OUT = 10 mA
C_L = 500 pF
(10% to 90%)
Room
Full
Room
Full
Room
Room
V_CC = 10 V, R_OSC = 390 kW
V_UVUP vV_IN v 200 V
Excluding I From Resistive Divider of
Stop and Start Pins
+V_IN v 18 V, V_START (Pin 14) < 8.8 V
Full
Room
Room
Notes
a. Refer to PROCESS OPTION FLOWCHART for additional information.
b. Room = 25_C, Full = −40 to 85_C.
c. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
d. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
e. Guaranteed by design, not subject to production test.
f. C_STRAY Pin 8 = v 5 pF.
Limits
−40 to 85_C
Min^c Typ^d Max^c
50
60
−1
1
1.28
1.32
1
2
1
1.3
−5
−1
0.12
0.15
50
70
0.5
0.6
0.7
100
150
9.7
9.5
0.3
0.5
40
75
40
75
1
1.4
75
100
2
5
Unit
dB
mA
V
kW
MHz
mA
dB
V
ns
V
ns
mA
mA
TIMING WAVEFORMS
SENSE
0
V_CC
OUTPUT
0−
0.85 V −
50%
t_r v 10 ns
t_d
90%
Document Number: 71093
S-40746—Rev. B. 19-Apr-04
FIGURE 1. Delay Time for Current Sense
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