ISL81802

2. Specifications

R16DS0033EU0101 Rev.1.01

Page 13 of 44

Oct.15.20

UVLO1 Rise Threshold

VUVLO1_THR

VIN > 5.6V

1.77

1.80

1.83

V

UVLO1 Hysteresis Current

IUVLO1_HYST

VIN = 12V, EN/UVLO = 1.815V

2.5

4.4

6.0

µA

EN2 Rise Threshold

VEN2SS_THR

VIN > 5.6V

0.75

1.05

1.30

V

EN2 Fall Threshold

VEN2SS_THF

VIN > 5.6V

0.60

0.90

1.10

V

EN2 Hysteresis

VEN2SS_HYST

VIN > 5.6V

70

150

300

mV

UVLO2 Rise Threshold

VUVLO2_THR

VIN > 5.6V

1.77

1.80

1.83

V

UVLO2 Hysteresis Current

IUVLO2_HYST

VIN = 12V, EN/UVLO = 1.815V

2.5

4.4

6.0

µA

Soft-Start Current

SS/TRK1 Soft-Start Charge Current

ISS1

SS/TRK = 0V

2.00

µA

SS/TRK2 Soft-Start Charge Current

ISS2

SS/TRK = 0V

2.00

µA

Default Internal Minimum Soft-Starting

Default Internal Output Ramping Time1

tSS1_MIN

SS/TRK open

1.7

ms

Default Internal Output Ramping Time2

tSS2_MIN

SS/TRK open

1.7

ms

Power-Good Monitors

PGOOD Upper Threshold

VPGOV

107

109

112

%

PGOOD Lower Threshold

VPGUV

87

90

92

%

PGOOD Low Level Voltage

VPGLOW

I_SINK = 2mA

0.35

V

PGOOD Leakage Current

IPGLKG

PGOOD = 5V

0

150

nA

PGOOD Timing

VOUT Rising Threshold to PGOOD

Rising (Note 9)

tPGR

1.1

5

ms

VOUT Falling Threshold to PGOOD

Falling

tPGF

80

µs

Reference Section

Internal Voltage Loop Reference

Voltage

VREFV

0.800

V

Reference Voltage Accuracy

TA = 0°C to +85°C

-0.75

+0.75

%

TA = -40°C to +125°C

-1.00

+1.00

%

Internal Current Loop Reference

Voltage

VREFI

1.200

V

Reference Voltage Accuracy

TA = 0°C to +85°C

-0.75

+0.75

%

TA = -40°C to +125°C

-1.00

+1.00

%

PWM Controller Error Amplifiers

FB_1 Pin Bias Current

IFBOUTLKG1

-50

0

+50

nA

FB_1 Error Amp GM

Gm1

1.75

mS

FB_1 Error Amp Voltage Gain

AV1

82

dB

FB_1 Error Amp Gain-BW Product

GBW1

8

MHz

FB_1 Error Amp Output Current

Capability

300

µA

FB_2 Pin Bias Current

IFBOUTLKG2

-50

0

+50

nA

FB_2 Error Amp GM

Gm2

1.75

mS

Recommended operating conditions unless otherwise noted. See the Block Diagram and Typical Application Schematics. VIN = 4.5V to 80V,

or VDD = 8V ±10%, C_VCC5V = 4.7µF, TA = -40°C to +125°C, Typical values are at TA = +25°C, unless otherwise specified.

Boldface limits apply across the operating temperature range, -40°C to +125°C. (Continued)

Parameter

Symbol

Test Conditions

Min

(Note 6)Typ

Max

(Note 6)Unit