ISL97652 Просмотр технического описания (PDF) - Intersil
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ISL97652 Datasheet PDF : 25 Pages
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ISL97652
Electrical Specifications VIN = 12V, VBOOST = VSUP = 15V, VON = 25V, VOFF = -8V, over temperature from -40°C to +85°C, unless
otherwise stated. (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX UNIT
CMRR
Common-Mode Rejection Ratio
50
70
dB
PSRR
Power Supply Rejection Ratio
70
85
dB
VOH
VOH
VOL
VOL
ISC
SR
Output Voltage Swing High
Output Voltage Swing High
Output Voltage Swing Low
Output Voltage Swing Low
Output Short Circuit Current per amplifier
Slew Rate
IOUT(SOURCE) = 5mA
IOUT(SOURCE) = 50mA
IOUT(SINK) = 5mA
IOUT(SINK) = 50mA
AVIN - 50
AVIN - 450
50
450
300
400
50
mV
mV
mV
mV
mA
V/µs
BW
Gain Bandwidth
-3dB gain point
30
MHz
FAULT DETECTION THRESHOLDS
OVP
Overvoltage Protection Threshold
AVDD rising
18.8
19.5
20
V
OVPHYS
Overvoltage Protection Threshold Hysteresis
VLOR
Undervoltage Lockout Threshold
PVIN rising
VLOF
Undervoltage Lockout Threshold
PVIN falling
TOFF
Thermal Shut-Down
Temperature rising
TON
Reset after Thermal Shut-Down
Temperature falling
Vth_AVDD(FB) AVDD Boost Short Detection
V(FBFBB) falling less than
Vth_VLOGIC(FB VLOGIC Buck Short Detection
B)
V(FBB) falling less than
0.8
V
7.8
8.0
V
7.4
7.6
V
150
°C
100
°C
1.14
V
1.14
V
Vth_POUT(FBP) POUT Charge Pump Short Detection
Vth_NOUT(FBN) NOUT Charge Pump Short Detection
TFD
Fault Delay Time to Chip Turns Off
V(FBP) falling less than
V(FBN) rising more than
1.14
V
0.525
V
64
µs
START-UP SEQUENCING
ISS
SS, SSB Current
SS, SSB ≤1.5V
6
µA
IDLY
DLY1, DLY2 Current
DLY1, DLY2 <1.5V
6
µA
SSTH1
SS, SSB Voltage to Give Max Current Limit
1.27
V
SSTH2
SS, SSB Voltage to Enable Fault Checking
2.05
V
DELTH1
DEL1, DEL2 Voltage to Give Max Current
Limit
1.27
V
DELTH2
DEL1, DEL2 Voltage to Enable Fault
Checking
2.05
V
5
FN9287.1
November 2, 2007
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