TK75020 Просмотр технического описания (PDF) - Toko America Inc
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TK75020 Datasheet PDF : 11 Pages
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TK75020
TK75020 ELECTRICAL CHARACTERISTICS (CONT.)
Test conditions: VCC = 12 V, VEN = 2.4 V, CT = 360 pF, ITON / SS = ITOFF(MAX) = 50 µA, DRV is Open, TA = Full Operating
Temperature Range, Typical numbers apply at TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
DRIVE SECTION (DRV PIN)
VDRV(HIGH) Output High Voltage
IDRV = -20 mA
IDRV = -100 mA
IDRV = 20 mA
VDRV(LOW) Output Low Voltage
IDRV = 200 mA
IDRV = 20 mA, VCC = 0 V or
VEN = 0 V
I
Peak Source Current
DRV(SRC,PK)
C = 10 nF
DRV
IDRV(SINK,PK) Peak Sink Current
CDRV = 10 nF
tRISE
Rise Time
CDRV = 1 nF
tFALL
Fall Time
CDRV = 1 nF
ERROR AMPLIFIER SECTION (EAINV AND EAOUT PINS)
VEA(ref)
Equivalent Internal Reference
Voltage
9.0 10.0
V
9.8
V
0.3 0.6
V
1.8 2.5
V
0.9
1.3
V
500
mA
700
mA
70
120
ns
25
75
ns
1.19 1.26 1.30
V
I
EA(INV)
Bias Current
VEA(OUT, LOW) Output Voltage LOW
AOL
Open Loop Gain
GBW
Gain-Bandwidth Product
IEA(OUT) = -1 mA, VINV = 1.5 V
15 kΩ From EAOUT to TON / SS
15 kΩ From EAOUT to TON / SS,
(Note 2)
0.10
0.25
70
2
µA
V
dB
MHz
PSSR
Power Supply Rejection Ratio
6 V ≤ VCC ≤ 16 V
CURRENT LIMIT SECTION (CL PIN)
ICL
Bias Current
VCL = 0 V
VCL(TH)
Threshold Voltage
tCL(DRV)
Delay to DRV
VCL Steps From 0 to 400 mV
ON-TIME SETTING AND SOFT-START SECTION (TON / SS PIN)
ITON / SS (SC) Short Circuit Current
VTON / SS = 0 V
VTON / SS
Pin Voltage
ITON / SS = 0 mA
VSS(TH)
Soft-Start Threshold
VDCH(TH)
ODP Discharge Threshold
65
dB
-0.2
µA
180 210 240 mV
150
ns
-2.5
mA
1.8 2.0 2.2
V
0.40 0.65 0.90
V
1.0 1.4 1.9
V
January 1999 TOKO, Inc.
Page 3
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