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FAN9612 View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
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FAN9612
Fairchild
Fairchild Semiconductor Fairchild
FAN9612 Datasheet PDF : 37 Pages
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Electrical Characteristics (Continued)
Unless otherwise noted, VDD = 12V, TJ = -40°C to +125°C. Currents are defined as positive into the device and
negative out of the device.
Symbol
Parameter
Conditions
Current Sense
VCS CS Input Threshold Voltage Limit
ICS
CS Input Current
tCS_DELAY CS to Output Delay
VCSX = 0V to 1V
CS Stepped from 0V to 5V
Zero Current Detection
VZCD_IN Input Voltage Threshold(4)
VZCD_H
VZCD_L
IZCD_SRC
IZCD_SNK
tZCD_DLY
Input High Clamp Voltage
Input Low Clamp Voltage
Source Current Capability(4)
Sink Current Capability(4)
Turn-On Delay(5)
IZCD = 0.5mA
IZCD = –0.5mA
ZCDx to OUTx
Output
ISINK
ISOURCE
OUTx Sink Current (5)
OUTx Source Current (5)
VOUTx = VDD/2; CLOAD = 0.1µF
VOUTx = VDD/2; CLOAD = 0.1µF
tRISE
tFALL
Rise Time
Fall Time
CLOAD = 1nF, 10% to 90%
CLOAD = 1nF, 90% to 10%
VO_UVLO Output Voltage During UVLO
IRVS Reverse Current Withstand (5)
VDD = 5V; IOUT = 100µA
Soft-Start (CSS = 0.1µF)
ISS_MAX
ISS_MIN
Maximum Soft-Start Current
Minimum Soft-Start Current(5)
VCOMP < 3.0V
VCOMP > 4.5V
Input Brown-Out Protection
VIN_BO Input Brownout Threshold
IVINSNK VIN Sink Current
VVIN > 1.1V
VVIN < 0.8V
Input-Voltage Feedforward Range
VFF_UL
VFF_RATIO
VIN Feedforward Upper Limit (5)
VFF_UL / VIN_BO (5)
Phase Management
VPH,DROP Phase Dropping Threshold
VCOMP Decreasing, Transition
from 2 to 1 Phase, TA = 25°C
VPH,ADD Phase Adding Threshold
VCOMP Increasing, Transition
from 1 to 2 Phase, TA = 25°C
Over-Voltage Protection Using FB Pin – Cycle-by-Cycle (Input)
VOVPNL
Non-Latching OVP Threshold
(+8% above VOUT_NOMINAL)
VOVPNL_HYS OVP Hysteresis
TA = 25°C
DRV1=DRV2=0V
FB Decreasing
Over-Voltage Protection Using OVP Pin – Latching (Input)
VOVPLCH Latching OVP Threshold (+15%)
DRV1=DRV2=0V
Note:
5. Not tested in production.
Min. Typ. Max. Unit
0.19 0.21 0.23
V
–0.2
0.2
µA
85
100
ns
0.1
0
0.1
V
0.8
1.0
1.2
V
0.7 0.5 0.3
V
1
mA
10
mA
180
ns
2.0
A
1.0
A
10
25
ns
5
20
ns
1
V
500
mA
7
5
3
µA
–0.40 –0.25 –0.10 µA
0.76 0.925 1.10
V
–0.2
0.2
µA
1.4
2
2.5
µA
3.1
3.7
4.3
V
3.6
4.0
4.3
0.66 0.73 0.80
V
0.86 0.93 1.00
V
3.15 3.25 3.35
V
0.24
V
3.36 3.50 3.65
V
© 2008 Fairchild Semiconductor Corporation
FAN9611 / FAN9612 • Rev. 1.1.3
7
www.fairchildsemi.com
 

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