SG3526N 데이터 시트보기 (PDF) - Motorola => Freescale

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SG3526N

PULSE WIDTH MODULATION CONTROL CIRCUIT

Motorola => Freescale 

SG3526

ELECTRICAL CHARACTERISTICS (continued)

Characteristics

PWM COMPARATOR SECTION (Note 7)

Minimum Duty Cycle

(VCompensation = +0.4 V)

Maximum Duty Cycle

(VCompensation = +3.6 V)

DIGITAL PORTS (SYNC, SHUTDOWN, RESET)

Output Voltage

(High Logic Level) (Isource = 40 µA)

(Low Logic Level) (Isink = 3.6 mA)

Input Current  High Logic Level

(High Logic Level) (VIH = +2.4 V)

(Low Logic Level) (VIL = +0.4 V)

CURRENT LIMIT COMPARATOR SECTION (Note 9)

Sense Voltage (RS ≤ 50 Ω)

Input Bias Current

SOFT–START SECTION

Error Clamp Voltage (Reset = +0.4 V)

CSoft–Start Charging Current (Reset = +2.4 V)

OUTPUT DRIVERS (Each Output, VC = +15 Vdc, unless otherwise noted.)

Output High Level

Isource = 20 mA

Isource = 100 mA

Output Low Level

Isink = 20 mA

Isink = 100 mA

Collector Leakage, VC = +40 V

Rise Time (CL = 1000 pF)

Fall Time (CL = 1000 pF)

Supply Current

(Shutdown = +0.4 V, VCC = +35 V, RT = 4.12 kΩ)

NOTES: 7. fosc = 40 kHz (RT = 4.12 kΩ ± 1%, CT = 0.01 µF ± 1%, RD = 0 Ω)

8. 0 V ≤ VCM ≤ +5.2 V

9. 0 V ≤ VCM ≤ +12 V

Symbol Min

Typ

Max Unit

DCmin

–

–

0

%

DCmax

45

49

–

%

VOH

VOL

IIH

IIL

V

2.4

4.0

–

–

0.2

0.4

µA

–

–125 –200

–

–225 –360

Vsense

80

100

120

mA

IIB



–3.0

–10

µA

–

0.1

0.4

V

ICS

50

100

150

µA

VOH

V

12.5 13.5

–

12

13

–

VOL

V

–

0.2

0.3

–

1.2

2.0

IC(leak)

–

tr

–

tf

–

ICC

–

50

150

µA

0.3

0.6

µs

0.1

0.2

µs

18

30

mA

4

MOTOROLA ANALOG IC DEVICE DATA

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