AS2214 datasheet(7/8 Pages) ETC

7 / 8 page

Primary Side PWM Controller

AS2214

ASTEC Semiconductor

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

BOK UV Hysteresis Current

IHYST BOK

VBOK = 2.6 V

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

OV Clear Threshold

VOVH

3.80

4.00

4.50

OV Reset Threshold

VOVL

1.10

1.75

2.20

OV Bias Current

IBIAS OV

VREG = 5 V, VOV

≤ OV Threshold

-1

-0.2

µA

* For Vov > OV Reset Threshold,

see characteristic curve

ACP Voltage

VACP

IACP = 10

µA

1.3

ACP Voltage

VACP

IACP = -10

µA

-1.2

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

VLEN MIN

3.6

4.5

Functionality

LEN Logic Reset Voltage

VLEN

This level reflects one diode drop of

3.0

hysteresis from VLEN min

LEN Regeneration Current

ILENrgn

-10

µA

LEN Clamp

VLEN

IACP = 5

µA

5.2

5.9

6.6

LEN Bias Current

IBIAS LEN

VLEN = 5 V, IACP = 0

µA8

µA

* For LEN input current over full

range, see characteristic curve.

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

Maximum Input Signal

VCOMP =+5 V

1.00

1.08

1.20

Power Supply Rejection Ratio

PSRR

≤ VCC ≤ 18 V

Input Bias Current

IBIAS

-1

-10

µA

Propagation Delay to Output

tPB

150

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