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59PR9875N Datasheet(PDF) 8 Page - International Rectifier

Part # 59PR9875N
Description  16A Highly Integrated SupIRBuck Single-Input Voltage, Synchronous Buck Regulator
PDF  49 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

59PR9875N Datasheet(HTML) 8 Page - International Rectifier

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IR3448
8
www.irf.com
© 2013 International Rectifier
August 01, 2013
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
RS+ input impedance
Rin_RS+
45
63
85
kohm
RS- input impedance
Rin_RS-
Note 4
63
kohm
Maximum Voltage
Vmax_RS
V(VCC) – V(RSo)
0.5
1
1.5
V
Minimum Voltage
Min_RS
50
mV
Internal Digital Soft Start
Soft Start Clock
Clk_SS
Note 4
180
200
220
kHz
Soft Start Ramp Rate
Ramp(SS_Start)
Note 4
0.3
0.4
0.5
mV /
µs
Bootstrap Diode
Forward Voltage
I(Boot) = 30mA
360
520
960
mV
Switch Node
SW Leakage Current
lsw
SW = 0V, Enable = 0V
1
µA
Internal Regulator (VCC/LDO)
Output Voltage
VCC
Vin(min) = 7.2V, Io=0-30mA,
Cload = 2.2uF, DCM=0
6.3
6.8
7.1
V
Vin(min) = 7.2V, Io=0-30mA,
Cload = 2.2uF, DCM=1
4
4.4
4.8
VCC dropout
VCC_drop
Vin = 7V, Io=70 mA, Cload =
2.2uF
0.7
V
Short Circuit Current
Ishort
Note 4
70
mA
Zero-crossing
Comparator Delay
Tdly_zc
256 /
Fs
s
Zero-crossing
Comparator Offset
Vos_zc
Note 4
0
mV
Body Braking
BB Threshold
BB_threshold
Fb > Vref, Sw duty cycle, Note 3
0
%
FAULTS
Power Good
Power Good low upper
threshold
VPG_low(upper)
Vsns Rising
115
120
125
%
VREF
Power Good low Upper
Threshold Falling delay
VPG_low(upper)_Dly
Vsns > VPG_low(upper)
1.5
2.5
3.5
µs
Power Good high lower
threshold
VPG_high(lower)
Vsns Rising
95
%
VREF
Power Good high Lower
Threshold Rising Delay
VPG_high(lower)_Dly
Vsns rising
1.28
ms
Power Good low lower
threshold
VPG_low(lower)
Vsns falling
90
%
VREF
Power Good low lower
Threshold Falling delay
VPG_low(lower)_Dly
Vsns < VPG_low(lower)
101
150
199
µs
PGood Voltage Low
PG (voltage)
IPGood = -5mA
0.5
V
Over Voltage Protection (OVP)
OVP Trip Threshold
OVP (trip)
Vsns Rising
115
120
125
%
VREF



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