IR3895MPBF IRF [International Rectifier], IR3895MPBF Datasheet - Page 7

• Manufacturer Part Number: IR3895MPBF
• Description: 16A HIGHLY INTERGRATED SUPLRBUCK
• Manufacturer: IRF [International Rectifier]

Oscillator
Error Amplifier
Reference Voltage
Zero‐crossing Comparator Delay
Zero‐crossing Comparator Offset
Rt Voltage
Frequency Range
Ramp Amplitude
Ramp Offset
Min Pulse Width
Max Duty Cycle
Fixed Off Time
Sync Frequency Range
Sync Pulse Duration
Sync Level Threshold
Input Offset Voltage
Input Bias Current
Input Bias Current
Sink Current
Source Current
Slew Rate
Gain‐Bandwidth Product
DC Gain
Maximum output Voltage
Minimum output Voltage
Common Mode input Voltage
Feedback Voltage
PARAMETER
7
AUGUST 08, 2012 | DATA SHEET| Rev 3.1
Isource(E/A)
Vmax(E/A)
Vmin(E/A)
Tmin(ctrl)
Single‐Input Voltage, Synchronous Buck Regulator
Ramp(os)
Isink(E/A)
Vos_Vref
SYMBOL
IVp(E/A)
IFb(E/A)
Tdly_zc
Vos_Vp
Vos_zc
Vramp
GBWP
Dmax
Fsync
Tsync
High
Gain
Low
Toff
Vfb
Vrt
SR
F
s
Rt = 80.6K
Rt = 39.2K
Rt = 15.0K
Vin = 6.8V, Vin slew rate max = 1V/µs,
Note 4
Vin = 12V, Vin slew rate max = 1V/µs,
Note 4
Vin = 21V, Vin slew rate max = 1V/µs,
Note 4
Vcc=Vin=5V,For external Vcc operation,
Note 4
Note 4
Note 4
Fs = 300kHz, PVin = Vin = 12V
Note 4
VFb – Vref, Vref = 0.5V
VFb – Vp, Vp = 0.5V,Vref=0
Note 4
Note 4
Note 4
Vref and Vp pin floating
- 7 -P
16A Highly Integrated SupIRBuck
CONDITIONS
Note 4
Note 4
1350
MIN
270
540
270
100
‐1.5
‐1.5
100
0.4
1.7
86
20
‐4
‐1
3
0
4
7
0
256/Fs
1500
1.02
1.80
3.15
0.75
0.16
0.85
TYP
300
600
200
200
110
1.0
7.5
2.0
0.5
12
30
0
IR3895
MAX
1650
1650
+1.5
+1.5
330
660
250
120
100
0.6
1.2
2.3
1.2
60
11
20
40
+1
+4
4
PD‐97746
UNIT
Vp‐p
V/µs
MHz
kHz
kHz
mV
mA
mA
mV
µA
dB
ns
ns
ns
%
%
V
V
V
V
V
V
s