FA5527 FUJI [Fuji Electric], FA5527 Datasheet - Page 8

• Manufacturer Part Number: FA5527
• Description: Fuji Switching Power Control IC
• Manufacturer: FUJI [Fuji Electric]

AN-087E Rev.1.0
April-2011
Soft-start circuit (CS pin)
Over Current Protection circuit (CS pin) : Latch OFF for FA5526/27/28 and Auto-Recovery for FA5536/37/38
Cutoff circuit at overload (FB pin)
Cutoff circuit at overvoltage (VCC pin)
Current sensor (IS pin)
Fuji Electric Co., Ltd.
Item
Voltage gain
Maximum threshold voltage
Slope compensation value
Minimum ON pulse width
Blanking time
Output delay time
Item
Charging current
Threshold voltage for
changing charging current
Input threshold voltage
Item
Charging current
Sink current
Cutoff threshold voltage
Hysteresis width
Clamp voltage at latch mode
Item
Detection threshold voltage
Item
Threshold voltage
CS pin charging current
Symbol
Av
Vth
SLP
Tmin
Tblank
Tpd
Symbol
I
V
V
Symbol
V
I
CS0
SOCS2
THCS1
THCS0
THVCC
FA5526/5527/5528/5536/5537/5538
Symbol
I
I
V
V
V
V
Symbol
V
IS
CS4
sink
IS1
THCSF
THCSN
THHYS
CS2
THFB
IS
Condition
⊿ VFB/⊿ VIS
FB pin = 4V, duty = 10%
FB pin=4V
FB pin=3V
CS pin=0V
IS pin=1V
IS pin to OUT pin
Condition
CS pin = 0V
Ics = -12  -4µA
OUT pin width = Tmin,
FB pin = 3V
Condition
CS pin = 4V
Condition
CS pin = 4V
CS pin = 6V
ON→ OFF
OFF→ ON
V
FB pin : open
Condition
THCSF
- V
THCSN
FA5526/36
FA5527/37
FA5528/38
FA5526/36
FA5527/37
FA5528/38
FA5526/36
FA5527/37
FA5528/38
8
MIN
3.8
470
MIN
-15
MIN
-6
34
8.0
7.4
MIN
3.3
MIN
26
http://www.fujielectric.co.jp/products/semiconductor/
TYP
4.0
520
-24
-17
-12
0.3
0.5
0.7
0.2
0.4
0.6
100
TYP
-11
3
0.68
TYP
-4
59
8.5
7.9
0.6
8.9
TYP
3.6
TYP
28
-1.3
MAX
4.2
570
MAX
-5
MAX
-2
84
9.0
8.4
MAX
3.9
MAX
30
Unit
V/V
mV
mV/us
us
us
ns
Unit
uA
V
V
Unit
uA
uA
V
V
V
V
Unit
V
Unit
V
mA