SI9136DB Vishay, SI9136DB Datasheet - Page 9

• Manufacturer Part Number: SI9136DB
• Description: Pulse Width Modulation (PWM) Controller IC
• Manufacturer: Vishay

Specifications of SI9136DB

• Silicon Manufacturer: Vishay
• Application Sub Type: Power Supply Controller
• Kit Application Type: Power Management
• Silicon Core Number: SI9136
• Kit Contents: Board
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Document Number: 70818
S-00583—Rev. C, 03-Apr-00
(Sysmon EN)
(Sysmon EN)
f
OSC EN
max
ON/OFF
f
OSC EN
max
ON/OFF
V
OSC
(SS)
REF
V
DH
D
V
V
OSC
IN
(SS)
L
L
REF
V
DH
DL
V
IN
L
2.4 V
t
BBM
FIGURE 2. Converter is Enabled Before V
FIGURE 3. Converter is Enabled After V
2.4 V
4 ms
4 ms
IN
is Applied
IN
is Applied
The converter is enabled
V
LDO is activated
after V
REF circuit is activated
after V
available
After V
2.4 V, the converter is
turned on
Oscillator is activated
Slow soft-start gradually
increases the maximum
inductor current
High-side gate drive duty
ratio gradually increases
to maximum
Low-side gate drive
IN
The converter is
enabled
V
LDO is activated
after V
REF circuit is activated
after V
available
After V
2.4 V, the converter is
turned on
Oscillator is activated
Slow soft-start gradually
increases the maximum
inductor current
is applied
www.vishay.com FaxBack 408-970-5600
IN
IN
L
is applied
REF
becomes
is applied
IN
L
REF
becomes
goes above
Vishay Siliconix
is applied
goes above
Si9136
9