ISL85402IRZ 查看數據表（PDF） - Renesas Electronics
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ISL85402IRZ
Renesas Electronics
ISL85402IRZ Datasheet PDF : 22 Pages
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ISL85402
Electrical Specifications Refer to “Block Diagram” on page 4 and “Typical Application Schematics” on page 5. Operating
Conditions Unless Otherwise Noted: VIN = 12V, or VCC = 4.5V ±10%, TA = -40°C to +105°C. Typicals are at TA = +25°C. Boldface limits apply
over the operating temperature range, -40°C to +105°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
POWER-ON RESET
Rising VCC POR Threshold
Falling VCC POR Threshold
VCC POR Hysteresis
ENABLE
VPORH_RISE
VPORL_FALL
VPORL_HYS
2.82 2.9 3.05 V
2.6 2.8
V
0.3
V
Required Enable On Voltage
Required Enable Off Voltage
EN Pull-up Current
OSCILLATOR
VENH
VENL
IEN_PULLUP
EN Left Floating, VIN = 24V
EN Left Floating, VIN = 12V
EN Left Floating, VIN = 5V
2
V
0.8
V
0.8
µA
0.5
µA
0.25
µA
PWM Frequency
FOSC
RFS = 665kΩ
RFS = 51.1kΩ
FS Pin Connected to VCC or Floating or GND
160 200 240 kHz
1950 2200 2450 kHz
450 500 550 kHz
MIN ON Time
MIN OFF Time
SYNCHRONIZATION
tMIN_ON
tMIN_OFF
130 225 ns
210 325 ns
Input High Threshold
VIH
2
V
Input Low Threshold
VIL
0.5
V
Input Minimum Pulse Width
25
ns
Input Impedance
100
kΩ
Input Minimum Frequency Divided by Free
1.1
Running Frequency
Input Maximum Frequency Divided by Free
1.6
Running Frequency
Output Pulse Width
Output Pulse High
CSYNC = 100pF
VOH
RLOAD = 1kΩ
100
ns
VCC-
V
0.25
Output Pulse Low
VOL
GND
V
REFERENCE VOLTAGE
Reference Voltage
System Accuracy
VREF
0.8
V
-1.0
+1.0 %
FB Pin Source Current
5
nA
Soft-start
Soft-Start Current
ISS
ERROR AMPLIFIER
3
5
7
µA
Unity Gain-Bandwidth
DC Gain
Maximum Output Voltage
CLOAD = 50pF
CLOAD = 50pF
10
MHz
88
dB
3.6
V
FN7640 Rev 1.00
April 25, 2013
Page 7 of 22
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