STCF01 datasheet(7/16 Pages) STMICROELECTRONICS

7 / 16 page

STCF01

Electrical characteristics

7/16

Electrical characteristics

Table 4.

DC Electrical characteristics

(TJ = -40°C to 85°C, VI = 3.6V, CI = 2.2µF, CO = 4.7µF, L = 10µH, RLC = 12kΩ, RHC = 4kΩ,

VOVP = 8V, Typ. values @ 25°C, unless otherwise specified)

Note: 1 Typical value, not production tested

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

General section

Max Operation Supply Voltage

5.5

VUVLO

Under Voltage lockout threshold

VSEL= 0V, VSHDN = 0V,

Min. duty cycle

2.3

2.45

2.6

Quiescent Current

VSEL= 0V

2.3

Shutdown Mode

0.1

0.5

µA

fSW

Switching Frequency

VSEL= 0V, VSHDN = 0V

1.2

1.5

1.8

MHz

VOVP

Over Voltage Threshold

No Load

IPKMax

Maximum Inductor Current

VSHDN = 0V

1.2

Current control

VHC

HC Pin Voltage

VSEL= 3V, VSHDN = 0V

VI-0.65

VI-0.6

VI-0.55

VLC

LC Pin Voltage

VSEL= 0V, VSHDN = 0V

VI-0.65

VI-0.6

VI-0.55

ILED/IHC

High Level Current Multiplier

VSEL= 3V, VSHDN = 0V (25°C)

1900

2100

2300

A/A

ILED/ILC

Low Level Current Multiplier

VSEL= 0V, VSHDN = 0V (25°C)

2200

2400

2600

A/A

RONFB

Resistance ON Feedback

IFB = 100mA

1.2

Ω

IFB(LEAK) Current Feedback Leakage

VSHDN = 3V, VFB = VI

0.1

µA

Switch section

RON

Internal Switch ON-Resistance

ISW = 1A Note: 1

0.3

Ω

ISW(LEAK) Internal Switch Leakage Current VSHDN = 3V, VSW= 16.5V

0.1

µA

DMAX

Maximum Duty Cycle

IFB = 0mA

DMIN

Minimum Duty Cycle

IFB = 200mA; VSEL = 0V

Pulse Skipping

Control input section

VH(SEL)

VH(SHDN)

SEL and SHDN Input High

Threshold

VI = 2.6V

1.2

VI = 3.6V

1.4

VI = 5.5V

1.6

VL(SEL)

VL(SHDN)

SEL and SHDN Input Low

Threshold

VI = 2.6V

0.4

VI = 3.6V

0.5

VI = 5.5V

0.6

Thermal shutdown

TSD

Thermal Shutdown

145

°C

THS

Thermal Shutdown Hysteresis

°C

STCF01 数据表(PDF) 7 Page - STMicroelectronics

STCF01 数据表(HTML) 7 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

数据表下载