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ISL8117DEMO2Z 数据表(PDF) 8 Page - Renesas Technology Corp

部件名 ISL8117DEMO2Z
功能描述  Synchronous Step-Down PWM Controller
PDF  24 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

ISL8117DEMO2Z 数据表(HTML) 8 Page - Renesas Technology Corp

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ISL8117
FN8666 Rev 4.00
Page 8 of 24
Apr 19, 2018
DEFAULT INTERNAL MINIMUM SOFT-STARTING
Default Internal Output Ramping Time
tSS_MIN
SS/TRK open
1.5
ms
POWER-GOOD MONITORS
PGOOD Upper Threshold
VPGOV
109
112.5
115
%
PGOOD Lower Threshold
VPGUV
85
87.5
92
%
PGOOD Low Level Voltage
VPGLOW
I_SINK = 2mA
0.35
V
PGOOD Leakage Current
IPGLKG
PGOOD = 5V
20
150
nA
PGOOD TIMING
VOUT Rising Threshold to PGOOD Rising (Note 11)tPGR
1.1
5
ms
VOUT Falling Threshold to PGOOD Falling
tPGF
75
µs
REFERENCE SECTION
Internal Reference Voltage
VREF
0.600
V
Reference Voltage Accuracy
TA = 0°C to +85°C
-0.75
+0.75
%
TA = -40°C to +125°C
-1.00
+1.00
%
FB Bias Current
IFBLKG
-40
0
40
nA
PWM CONTROLLER ERROR AMPLIFIERS
DC Gain
88
dB
Gain-BW Product
GBW
8
MHz
Slew Rate
SR
2.0
V/µs
PWM REGULATOR
Minimum Off Time
tOFF_MIN
308
ns
Minimum On Time
tON_MIN
40
ns
Peak-to-Peak Sawtooth Amplitude
DVRAMP VIN = 20V
1.0
V
VIN = 12.0V
0.6
V
Ramp Offset
1.0
V
SWITCHING FREQUENCY
Switching Frequency
fSW
RT = 36k
890
1050
1195
kHz
Switching Frequency
RT = 16.5k
1650
2000
2375
kHz
Switching Frequency
RT PIN connect to GND
250
300
350
kHz
Switching Frequency
RT PIN connect to VCC5V or FLOAT
515
600
645
kHz
RT Voltage
VRT
RT = 36k
770
mV
CLOCK OUTPUT AND SYNCHRONIZATION
CLKOUT Output High
VCLKH
ISOURCE = 1mA
VCC5V -
0.3
V
CLKOUT Output Low
VCLKL
ISINK = 1mA
0.3
V
CLKOUT Frequency
fCLK
RT = VCC5V
515
600
645
kHz
SYNC Synchronization Range
fSYNC
RT = 36kΩ
1230
2200
kHz
DIODE EMULATION MODE DETECTION
MOD/SYNC Threshold High
VMODETHH
1.1
1.6
2.1
V
MOD/SYNC Hysteresis
VMODEHYST
200
mV
Diode Emulation Phase Threshold (Note 10)VCROSS
VIN = 12V
-3
mV
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 5 and “Typical
Application Schematics” on page 6. VIN = 4.5V to 60V, or VCC5V = 5V ±10%, C_VCC5V = 4.7µF, TA = -40°C to +125°C, Typical values are at TA = +25°C,
unless otherwise specified. Boldface limits apply across the operating temperature range, -40°C to +125°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 9)TYP
MAX
(Note 9)UNIT



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