PFS757HG POWERINT [Power Integrations, Inc.], PFS757HG Datasheet - Page 16

• Manufacturer Part Number: PFS757HG
• Description: Combined Two-Switch Forward and Flyback Power Supply Controllers with Integrated High Voltage MOSFETs
• Manufacturer: POWERINT [Power Integrations, Inc.]

Figure 18. High-Side Bias.
Figure 19. Latching Output OVP.
Rev. C 02/11
16
TFS757-764HG
V
OUT(OV)
Minimum Supply Current to
VDDH = 1 mA
= (15 mA × R
EN
BP
FB
R
L
HiperTFS
1
CONTROL
) + V
G
VDDH
1
+ 1
S
V
OUT
HD
HS
D
DSB
V
1
V
R
IN
(CTR = 1)
1
IC
1
V
I
C
OVP
R
C
V
AUX
1
1
3
BIAS
≥ 15 mA
V
C
HIGH_BIAS
R1
C
2
Standby Transformer
FB
EN
BP
R
L
HiperTFS
V
Main Transformer
R
HIGH_BIAS_(MIN)
1_MAX =
CONTROL
V
G
G
VDDH
HIGH_BIAS
PI-5881-082610
= V
1 mA
AUX_(MIN)
S
S
–V
HD
HS
D
DSB
DDH
PI-5879-111710
= 14 V
www.powerint.com