ISL6730 Datasheet, PDF (7/19 Pages) Intersil Corporation – Reduce component size requirements

ISL6730A, ISL6730B, ISL6730C, ISL6730D
Electrical Specifications Operating Conditions: V_CC = 15V, T_A = +25°C. Boldface limits apply over the operating temperature range,
-40°C to +125°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 8) TYP (Note 8) UNITS
Gate Drive Max. Sourcing/Sinking
Current
-
1.5
-
A
Rise Time
Fall Time
Gate Clamp Voltage
VOLTAGE REFERENCE
C_O = 2.2nF, V_CC = 15V, Gate Voltage Rise Time from 10%
-
to 90% of V_GC
34
62
ns
C_O = 2.2nF, V_CC = 15V, Gate Voltage Fall Time from 10%
-
to 90% of V_GC
34
57
ns
V_GC
10.5 12 13.5
V
Reference Voltage
Feedback Pin Pull-Down Current
Rising Threshold to Enable Converter
V_REF
I_FB
FB_EN
2.48 2.5 2.52
V
-
65
-
nA
280 300 320 mV
Falling Threshold to Disable Converter FB_DIS
190 202 214 mV
Enable Hysteresis
FB_Hys
-
100
-
mV
VOLTAGE ERROR AMPLIFIER
Error Amp Transconductance
Gmv
50
77
104 µA/V
ISource/Sink
-
13
-
µA
COMP Offset Voltage
COMP Soft-Start Enable Voltage
INPUT VOLTAGE SENSING
V_{COMP_OFF}
V_{COMP_EN}
0.95 1.01 1.07
V
0.58 0.64 0.75
V
VIN Leakage Current
-
9
-
nA
MULTIPLIER GAIN
GMUL
CURRENT ERROR AMPLIFIER
Current DC Gain
Error Amp Transconductance
ICOMP Source/Sink Current (Note 7)
COMP = 2.5V, V_IN = 1.0V, BO = 1.0V, I_SEN = 50µA
A_iDC
Gmi
ΔI_ICOMP/ΔI_ISEN
I_ICOMP = ±20µA
0.196 0.25 0.296 V/V
1.6
1.9
2.2
A/A
205 268 331 µA/V
-
60
-
µA
Current Sensing Input Offset
-3
2
7
mV
LIGHT LOAD EFFICIENCY ENHANCEMENT AND OVERPOWER PROTECTION
Skip Mode COMP Threshold
COMP Upper Limit
COMP Valid Range
FB Exit Threshold Voltage
V_SCMT Applied for ISL6730A/B
1.32 1.36 1.4
V
V_CUL
3.53 3.85 4.17
V
V_CUL-1V
2.5 2.83 3.16
V
V_{FB_EXIT} Fraction of the set point (V_REF), I_ISEN = 0µA, Applied for
87
88
89
%
ISL6730A/B
ISEN Exit Threshold Current
BROWNOUT DETECTION
I_{SEN_EXIT} V_FB = 2.5V, Applied for ISL6730A/B
-38
-29
-20
µA
Brownout Rising Threshold
Brownout Falling Threshold
OVERVOLTAGE PROTECTION
V_{BO_R}
V_{BO_F}
478 494 510 mV
387 401 415 mV
Overvoltage Protection
V_OVP
Fraction of the set point (V_REF); ~1µs noise filter
102.9 104.1 105.3 %
7
FN8258.1
August 8, 2013