InnoSwitch-CH
ꢒꢅIꢐꢃꢅꢓ ꢔꢓꢒꢃSS
ꢏꢅꢃIꢗ
ꢍꢏꢎ
ꢍꢔꢒꢒꢎ
ꢅꢌꢙꢋꢀꢃꢄꢁꢅ
ꢆꢇꢈꢆ ꢉ
ꢖꢃꢋꢀꢄ
ꢒꢅꢌSꢌꢗꢄ
ꢔꢓꢒꢃSS ꢒIꢗ
ꢋꢗꢏꢌꢅꢉꢁꢀꢄꢃꢙꢌ
ꢕ
-
ꢃꢋꢄꢁ-
ꢅꢌSꢄꢃꢅꢄ
Cꢁꢋꢗꢄꢌꢅ
ꢔꢓꢒꢃSS
CꢃꢒꢃCIꢄꢁꢅ
SꢌꢀꢌCꢄ ꢃꢗꢏ
Cꢋꢅꢅꢌꢗꢄ
ꢆꢇꢈꢆ ꢉ
ꢆꢇꢊꢈ ꢉ
ꢉIꢀIꢐIꢄ
ꢅꢌSꢌꢄ
ꢀIꢐIꢄ Sꢄꢃꢄꢌ
ꢐꢃCHIꢗꢌ
Cꢋꢅꢅꢌꢗꢄ ꢀIꢐIꢄ
Cꢁꢐꢒꢃꢅꢃꢄꢁꢅ
-
ꢕ
ꢛIꢄꢄꢌꢅ
CꢀꢁCꢂ
ꢄHꢌꢅꢐꢃꢀ
SHꢋꢄꢏꢁꢚꢗ
ꢏCꢐꢃꢑ
ꢁSCIꢀꢀꢃꢄꢁꢅ
ꢖꢅꢁꢐ
ꢖꢌꢌꢏꢔꢃCꢂ
ꢏꢅIꢉꢌꢅ
ꢒꢅIꢘSꢌC
ꢅꢌCꢌIꢉꢌꢅ
Cꢁꢗꢄꢅꢁꢀꢀꢌꢅ
ꢆ
ꢇ
ꢇ
ꢒꢋꢀSꢌ
ꢏCꢐꢃꢑS
R
ꢜꢇꢝ ꢉ
ꢀꢌꢃꢏIꢗꢙ
ꢌꢏꢙꢌ
ꢔꢀꢃꢗꢂIꢗꢙ
ꢁꢉꢒ
ꢀꢃꢄCH
ꢞꢟ Ω
SꢁꢋꢅCꢌ
ꢍSꢎ
ꢀꢁꢂ7ꢃꢄꢅꢂ110ꢃ1ꢃ
Figure 3. Primary-Side Controller Block Diagram.
OUTPUT
FORWARD
(FWD)
VOLTAGE
(VO
)
REGULATOR
4.45 V
DETECTOR
SCONDARY
BYPASS
(BPS)
HAND SHAKE
PULSES
+
-
CONTROL
4.45 V
3.80 V
FEEDBACK
(FB)
+
-
TO
RECEIVER
CABLE
COMPENSATION
FEEDBACK
DRIVER
ISENSE
(IS)
+
-
CLOCK
IS THRESHOLD
OSCILLATOR
ENABLE
SR
SYNC RECT
(SR)
ENB
Q
Q
S
+
-
R
SECONDARY
GROUND
(GND)
SR THESHOLD
PI-7433-092717
Figure 4.
Secondary-Side Controller Block Diagram.
2
Rev. J 10/17
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