參數(shù)資料
型號(hào): ISL6551ARZ
廠商: INTERSIL CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: Wide-Range Power-Supply Controller 8-PDIP -20 to 85
中文描述: DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC28
封裝: 6 X 6 MM, ROHS COMPLIANT, PLASTIC, MO-220VJJC, QFN-28
文件頁(yè)數(shù): 6/26頁(yè)
文件大小: 619K
代理商: ISL6551ARZ
6
FN9066.4
July 8, 2005
PWM DELAYS
(Note 4)
LOW1,2 delay “Rising”
LOWR
With respect to RESDLY rising
5
ns
LOW1,2 delay “Falling”
LOWF
Compare Delay @ Verror = Vramp
44
ns
SYNC1,2 delay “Falling”
SYNCF
With respect to RESDLY falling and with 20pF load
18
ns
SYNC1,2 delay “Rising”
SYNCR
With respect to CLK rising and with 20pF load
20
ns
ERROR AMPLIFIER (EANI, EAI, EAO)
(Note 4)
Unity Gain Bandwidth
UGBW
10
MHz
DC Gain
DCG
79
dB
Maximum Offset Error Voltage
Vos
3.1
mV
Input Common Mode Range
Vcm
VDD = 12V
0.4
9
V
Common Mode Rejection Ratio
CMMR
82
dB
Power Supply Rejection Ratio
PSSR
1mA load
95
dB
Maximum Output Source Current
ISRC
2
mA
Maximum Lower Saturation Voltage
Vsatlow
Sinking 0.27mA
125
mV
RAMP ADJUST (R_RA)
(Note 4)
Ramp Frequency
F
100
1000
kHz
Linear Voltage Ramp, Minimum
LVR
50
mV
Linear Voltage Ramp, Maximum
250
mV
Overall Variation
25
%
PEAK CURRENT LIMIT (PKILIM)
Peak Current Shutdown Threshold
IpkThr
BGREF = 0.1
μ
F, 399k
pull-up
1.25
1.263
1.31
V
Peak Current Shutdown Delay
(Note 4)
IpkDel
75
ns
SOFT-START (CSS)
Charge Current
Iss
Vcss = 0.6V
8
12
μ
A
Discharge Current
Idis
1.6
5.2
mA
Cycle-by-Cycle Current Limit
(ISL6551IB)
Vclamp
2
8
V
Cycle-by-Cycle Current Limit
(ISL6551AB)
Vclamp
1.9
8.1
V
DRIVERS (UPPER1, UPPER2, LOWER1, LOWER2)
Maximum Capacitive Load (each)
CL
VDD = VDDP = 12V, F = 1MHz,
Thermal Dependence
1600
pF
Turn On Rise Time (ISL6551IB)
Tr
1.0nF Capacitive load
8.9
16
ns
Turn On Rise Time (ISL6551AB)
Tr
1.0nF Capacitive load
9.2
17
ns
Turn Off Fall Time (ISL6551IB)
Tf
1.0nF Capacitive load
6.4
10
ns
Turn Off Fall Time (ISL6551AB)
Tf
1.0nF Capacitive load
12
ns
Shutdown Delay (Note 4)
T
SD
1.0nF Capacitive load
14.5
ns
Rising Edge Delay (Note 4)
T
RD
1.0nF Capacitive load
16.4
ns
Falling Edge Delay (Note 4)
T
FD
1.0nF Capacitive load
13.7
ns
Vsat_sourcing
Vsat_high
Sourcing 20mA
1.00
V
Sourcing 200mA
1.35
V
Electrical Specifications
These specifications apply for VDD = VDDP = 12V and T
A
= 0°C to 85°C (ISL6551IB) or -40°C to 105°C
(ISL6551AB), Unless Otherwise Stated
(Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ISL6551
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