UPD16901GS datasheet(2/12 Pages) NEC

2 / 12 page

µPD16901

ABSOLUTE MAXIMUM RATINGS (TA = 25 ˚C unless specified otherwise)

Item

Symbol

Condition

Rating

Unit

Supply voltage

VIN

7.0

Output voltage

VSW

Total power dissipation

Note

0.9

Operating ambient temperature

–20 to 85

˚ C

Storage temperature range

Tstg

–55 to +150

˚ C

Note When 90 mm

× 90 mm × 1.6 mm thick glass epoxy board is mounted

RECOMMENDED OPERATING RANGE

Item

Symbol

MIN.

TYP.

MAX.

Unit

Supply voltage

VDD

4.5

5.0

5.5

Charge pump capacitor

C1, C2

0.033

0.1

0.47

µF

Operating ambient temperature

070

˚ C

ELECTRICAL SPECIFICATIONS

(TA = 25 ˚C, VIN = 5 V unless specified otherwise)

Item

Symbol

Condition

MIN.

TYP.

MAX.

Unit

(Oscillation block)

Oscillation frequency

fOSC

RT = 68 k

Ω

153

167

181

kHz

On duty

DUTY

(Low voltage misoperation preventive circuit)

Operation start voltage

VIN(start-up)

3.3

3.7

4.3

Operation stop voltage

VIN(stop)

2.7

3.2

3.8

Hysteresis width

VHYS

0.3

0.5

0.7

(Overcurrent detection block)

Overcurrent detection voltage

VDET

270

300

330

(On/off control block)

ON/OFF pin input voltage

VIH

4.5 V

≤ VIN ≤ 5.5 V

VIN*0.7

VIL

4.5 V

≤ VIN ≤ 5.5 V

VIN*0.3

ON/OFF pin input current

IIL

ON/OFF pin voltage = 0

–20

–5

–1

µA

(Charge pump circuit)

Output voltage

VCHG

4.5 V

≤ VIN ≤ 5.5 V

8.0

0 ˚C

≤ TA ≤ 70 ˚C

(Short-circuit protection circuit)

Timer latch pin output current

ISCP

RT = 68 k

Ω

2.0

3.3

4.5

µA

Timer latch detection voltage

VDETT

0.85

1.0

1.15

(Output block)

Output stage on resistance

RDS(ON)

IPK = 0.5 A

0.3

0.5

Ω

Output stage leakage current

IDSOFF

VDS = 20 V

1.0

µA

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