SI9122A_08 VISHAY [Vishay Siliconix], SI9122A_08 Datasheet - Page 6

• Manufacturer Part Number: SI9122A_08
• Description: 500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification Drivers
• Manufacturer: VISHAY [Vishay Siliconix]

Si9122A
Vishay Siliconix
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 (- 40 °C to 85 °C).
c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
d. F
e. Measured on SRL or SRH outputs.
f. See figure 3 for Break-Before-Make time definition.
g. V
h. Guaranteed by design and characterization, not tested in production.
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6
SPECIFICATIONS
Parameter
Synchronous Rectifier (SRH, SRL) Drivers
Output High Voltage
Output Low Voltage
Break-Before-Make Time
Peak Output Source
Peak Output Sink
Rise Time
Fall Time
Voltage Mode
Error Amplifier
Current Mode
Current Amplifier
MIN
UVLO
when V
tracks V
CL_CONT
REG1
by a diode drop.
at clamp level. Typical foldback frequency change + 20 %, - 30 % over temperature.
f
a
Symbol
I
SOURCE
t
t
t
t
t
t
I
t
t
V
BBM1
BBM2
BBM3
BBM4
V
d1DH
d3DH
SINK
d2DL
d4DL
OH
t
t
OL
r
f
T
V
A
T
INDET
A
= 25 °C, R
= 25 °C, R
Unless Otherwise Specified
Input to High-Side Switch Off
Input to High-Side Switch Off
Input to Low-Side Switch Off
Input to Low-Side Switch Off
f
NOM
= 7.5 V; 10.5 V ≤ V
C
SRH
Test Conditions
= 500 kHz, V
Sourcing 10 mA
Sinking 10 mA
V
BBM
CC
BBM
= C
= 33 kΩ, See Figure 3
= 10.5 V
SRL
= 33 kΩ, L
= 0.3 nF
IN
= 75 V
CC
X
≤ 13.2 V
= 75 V
V
CC
Min.
- 0.4
b
- 40 to 85 °C
Limits
S-80038-Rev. D, 14-Jan-08
Typ.
< 200
< 200
< 200
< 200
- 100
Document Number: 73492
100
55
40
35
55
35
35
c
Max.
0.4
b
Unit
mA
ns
ns
ns
ns
V