SI9150 Datasheet, PDF (3/5 Pages) Vishay Siliconix – Synchronous Buck Converter Controller

Si9150
Vishay Siliconix
SPECIFICATIONS^a
Parameter
Symbol
Test Conditions
Unless Otherwise Specified
6.0 v V_DD v 16.5 V
Limits
C Suffix 0 to 70_C
Min^b Typ^c Max^b
Limits
D Suffix −40 to 85_C
Min^b Typ^c Max^b
Unit
Output
Output High Voltage
Output Low Voltage
Output Resistance
Rise Time^d
Fall Time^d
Logic
V_OH
V_OL
R_OUT
t_r
t_f
I_OUT = 10 mA, V_DD = 10 V
I_OUT = −10 mA, V_DD = 10 V
I_OUT = 100 mA, V_DD = 10 V
C_L = 800 pF, V_DD = 10 V
9.75
9.7
0.25
V
0.3
10
20
10
25
W
30
60
30
60
30
70
ns
30
70
Delay to Output
Enable Pull-Up Resistance
STBY Pull-Up Current
Turn-On Threshold
Turn-Off Threshold
t_d(EN)
R_EN
I_STBY
V_ENH
V_ENL
Transition High to Low
T_A = 25_C, V_STBY = 0 V
V_DD = 10 V
V_DD = 10 V, Rising Input Voltage
V_DD = 10 V, Falling Input Voltage
0.25
1
500
0.25
1
ms
500
kW
−25
−20
−15
−28
−20
−12
mA
6
6.8
8
6
6.8
8
V
2
3.75
5
2
3.75
5
Notes
a. Refer to PROCESS OPTION FLOWCHART for additional information.
b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
d. Guaranteed by design, not subject to production test.
e. The voltage reference is trimmed with the feedback (Pin 5) connected to compensation (Pin 4) so that the effect of the error amplifier’s input offset voltage is
eliminated.
f. C_OSC includes the PC board’s parasitic capacitance.
TYPICAL CHARACTERISTICS (25_C UNLESS OTHERWISE NOTED)
1000
Oscillator Characteristics
100
50 pF
100 pF
150 pF
200 pF
10
10
100
r_OSC − Oscillator Resistance (kW)
1000
Document Number: 70020
S-40752—Rev. F, 19-Apr-04
www.vishay.com
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