AS2214N Просмотр технического описания (PDF) - Astec Semiconductor => Silicon Link
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AS2214N Datasheet PDF : 8 Pages
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Primary Side PWM Controller
AS2214
Electrical Characteristics (cont’d)
Electrical Characteristics are guaranteed over full junction temperature range (0 to 105° C). Ambient temperature must be derated
based on power dissipation and package thermal characteristics. Unless otherwise specified, the conditions of test are VCC = 15 V;
BOK = 3 V; OV = 0V; RT = 680 Ω; CT = 10 nF. To override UVLO, VCC should be raised above 18 V prior to test.
Parameter
Symbol Test Condition
Min
Typ
Max
Unit
Housekeeping
BOK UV Threshold
VBOK UV VREG = 5 V
2.500
2.537 2.575
V
BOK UV Hysteresis Current
IHYST BOK VBOK = 2.6 V
42
50
58
µA
BOK Input Bias Current
IOFF BOK
VBOK = 2.4 V
0.1
1.0
µA
OV Threshold
VOV
2.50
2.80
3.10
V
OV Clear Threshold
VOVH
3.80
4.00
4.50
V
OV Reset Threshold
VOVL
1.10
1.75
2.20
V
OV Bias Current
IBIAS OV
VREG = 5 V, VOV ≤ OV Threshold
* For Vov > OV Reset Threshold,
see characteristic curve
-1
-0.2
1
µA
ACP Voltage
VACP
IACP = 10 µA
1.3
V
ACP Voltage
VACP
IACP = -10 µA
-1.2
V
LEN Charge Current
ILEN
IACP = 10 µA; VLEN = 0 V
-30
-45
-65
µA
LEN Charge Current
ILEN
IACP = -10 µA; VLEN = 0 V
-30
-50
-65
µA
Minimum Voltage for LEN
Functionality
VLEN MIN
3.6
4.5
V
LEN Logic Reset Voltage
VLEN
This level reflects one diode drop of
3.0
V
hysteresis from VLEN min
LEN Regeneration Current
ILENrgn
-10
µA
LEN Clamp
VLEN
IACP = 5 µA
5.2
5.9
6.6
V
LEN Bias Current
IBIAS LEN
VLEN = 5 V, IACP = 0 µA
* For LEN input current over full
range, see characteristic curve.
8
µA
Current Sense Comparator
Transfer Gain
AVISNS
-0.2 ≤ VISNS ≤ 0.8 V
2.85
3.00
3.15
V/V
ISNS Level Shift
VLS
VISNS = 0 V
1.50
V
Maximum Input Signal
VCOMP =+5 V
1.00
1.08
1.20
V
Power Supply Rejection Ratio
PSRR
12 ≤ VCC ≤ 18 V
70
dB
Input Bias Current
IBIAS
-1
-10
µA
Propagation Delay to Output
tPB
85
150
ns
ASTEC Semiconductor
89
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