LB1921 datasheet(2/10 Pages) SANYO

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No. 5439-2/10

LB1921

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage 1

VCC max

Maximum supply voltage 2

VM max

Output current

IO max

≤ 100 ms

3.5

Allowable power dissipation 1

Pd max1

Independent IC

Allowable power dissipation 2

Pd max2

With an arbitrarily large heat sink

Operating temperature

Topr

–20 to +80

°C

Storage temperature

Tstg

–55 to +150

°C

Allowable Operating Ranges at Ta = 25°C

Parameter

Symbol

Conditions

Ratings

Unit

Power supply voltage range 1

VCC

9.5 to 28

Power supply voltage range 2

9 to 28

FG Schmitt output applied voltage

VFGS

0 to +8

Fixed voltage output current 1

IO1

7-V output

0 to –20

Fixed voltage output current 2

IO2

5-V output

0 to –20

Fixed voltage output current 3

IO3

4-V output

0 to –15

FG Schmitt output current

IFGS

0 to +5

Lock detector output current

ILD

0 to +20

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

Current drain 1

ICC1

Current drain 2

ICC2

Stop mode

Output saturation voltage 1

VO (sat)1

IO = 1 A

2.0

3.0

Output saturation voltage 2

VO (sat)2

IO = 2 A

2.7

4.2

Output leakage current

IO leak

100

µA

[7-V Fixed Voltage Output]

Output voltage

IO = –10 mA

6.65

7.0

7.35

Voltage variation

∆VH1

VCC = 9.5 to 28 V

200

Load variation

∆VH2

IO = –5 to –20 mA

200

[5-V Fixed Voltage Output]

Output voltage

IO = –5 mA

4.45

4.80

5.15

Voltage variation

∆VX1

VCC = 9.5 to 28 V

200

Load variation

∆VX2

IO = –5 to –20 mA

200

[4-V Fixed Voltage Output]

Output voltage

VFG

IO = –5 mA

3.65

4.0

4.35

Voltage variation

∆VFG1

VCC = 9.5 to 28 V

200

Load variation

∆VFG2

IO = –5 to –15 mA

110

200

[Hall Amplifier]

Input bias current

IHB

–4

–1

µA

Common mode input voltage

VICM

1.5

5.1

range

Hall input sensitivity

mVp-p

Hysteresis

∆VIN

Input voltage low

→ high

VSLH

Input voltage high

→ low

VSHL

–7

[Oscillator]

Output high-level voltage

VOH (CR)

2.8

3.1

3.4

Output low-level voltage

VOL (CR)

0.8

1.1

1.4

Oscillator frequency

f(CR)

R = 56 k

Ω, C = 1000 pF

kHz

Amplitude

V(CR)

2.0

Vp-p

Electrical Characteristics at Ta = 25°C, VCC = VM = 24 V

Continued on next page.

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