CS1680

4

DS1055F1

3. CHARACTERISTICS AND SPECIFICATIONS

3.1 Electrical Characteristics

Typical characteristics conditions:

- All voltages are measured with respect to GND.

- Unless otherwise specified, all currents are positive when

flowing into the IC.

Minimum/Maximum characteristics conditions:

Parameter

Condition

Symbol

Min

Typ

Max

Unit

VDD Supply Voltage

Operating Range

After Turn-on

11

-

17

V

Turn-on Threshold Voltage

-8.5

-

V

Turn-off Threshold Voltage (UVLO)

-7.5

-

V

GPIO Low

(Note 1)

-50.0

-

%

Zener Voltage

(Note 2)

18.5

-

19.8

V

VDD Supply Current

Startup Supply Current

--

1.0

mA

Operating Supply Current

-11

-

mA

Reference

Reference Current

-64

-

A

Clamp Gate Drive

Output Source Resistance

-

290

-



Output Sink Resistance

-

208

-



Boost Output Mode1 Algorithm

Regulation Target

(Notes 1, 4)

-73.3

-

%

Boost Output Mode2 Mode Algorithm

Regulation Target

(Notes 1, 5)

-78.4

-

%

Boost Output Mode3 Algorithm

Regulation Range Low

(Notes 1, 6)

CS1680-00

CS1680-02

-

-

60.0

65.9

-

-

%

%

Regulation Range High

(Notes 1, 6)

-82.0

-

%

Accelerated Decrease On

CS1680-00

CS1680-02

-

-

52.2

60.4

-

-

%

%

Accelerated Increase On

(Notes 1, 7)

Accelerated Increase Off

(Notes 1, 7)

-

-

87.8

85.1

-

-

%

%

Boost Pulse Width Modulator

Minimum On Time

-0.1

-

s

Maximum On Time

-

800

-

s

Constant Off Time

Mode1

-0.5

-

s

Minimum Off Time

Mode2 & Mode3

-0.2

-

s

Maximum Off Time

Mode2 & Mode3

-0.9

-

s

Minimum Switching Frequency

-

1.3

-

kHz

Maximum Switching Frequency

-

3.3

-

MHz