L9907 datasheet(3/8 Pages) STMICROELECTRONICS

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ELECTRICAL CHARACTERISTICS (7V < VS < 18V, –40

°C< Tj < 150°C; unless otherwise specified.)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Quiescent Current

IOUT = 0, (Output Open)

|Vdin| < 20mV (stop)

|Vdin| < 200mV (L or R)

-VN-, VN+

Neutral Zone Threshold (2)

1.5 < VINC <VS -2V; VS = 12V

RPR =

∞

RPR =0

3x VST

120

240

VST

4x VST

-VST- ,VST+

Stop Range Threshold

1.5 < VINC < VS -2V; VS = 12V

RPR =

∞

RPR =0

100

VINCL

Control Input LOW Disable

Threshold

Tj = -40 to +25ºC

Tj = >25ºC

0.8

0.6

1.2

1.5

VINCH

VCH (3)

Control Input HIGH Disable

Threshold (4)

Outputs = ON

with RINC = 0

Ω

with RINC =5K

Ω

with RINC = 10K

Ω

VS-2

VS-1.5

VS-1.4

Outputs = OFF

with RINC =0

Ω

with RINC =5K

Ω

with RINC = 10K

Ω

VS-0.8

VS-0.6

VS-0.4

IIN

Input Bias Current

1.5 < VINC <VS -2V; VS = 12V

Vdin =0; RPR =

∞

Vdin =

± 200mV; RPR = ∞

Vdin =0; RPR =0

Vdin =

± 200mV; RPR =0

0.45

0.9

0.8

1.5

2.0

4.0

3.6

6.8

µA

VOSI

Output Saturation Voltage

Sink Stage

IOUT = 0.7A

IOUT = 0.35A

1.1

0.8

1.4

1.1

VOSO

Output Saturation Voltage

Source Stage

IOUT = 0.7A

IOUT = 0.35A

1.2

0.9

1.5

(2) With a programming resistor RPR between the PR pin and GND the N+ and N- thresholds can be adjusted from the nominal value (RPR =

∞

, pin PR open) up to two times the nominal value (RPR = 0, pin PR shorted to GND).

The formula defining VN+, VN- typical value as a function of RPR and VS is: –VN− = VN+ =(36mV + 0.017⋅ VS) ⋅

RPR

9.5K

Ω

+ 2 ⋅

RPR

9.5K

Ω

for RPR =

∞ this formula reduced to:

-VN+ (RPR =

∞)= VN+ (RPR = ∞) = 18mV + 0.0086 ⋅ VS.

for Vs in V and RPR in K

Ω these formulas result in mV

(3) VCH is the control input voltage applied to the pin INC through a serial resistor RINC

(4) OUTPUTS = UNDEFINED for: VS -2V < VCH (RINC =0

Ω)< VS -0.8V

V S -1.5V < VCH (RINC =5K

Ω)< VS -0.6V

V S -1.4V < VCH (RINC = 10K

Ω)< VS -0.4V

VN-

MOTOR

DIRECTION RIGHT

D95AT182

H-

VH+

N+

MOTOR

DIRECTION LEFT

VINC -VINF

NEUTRALZONE

STOP RANGE

VM =VOUTC -VOUTF

Figure 1: L9907N Differential Input to Output Transfer Characteristics

L9907N

3/8

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