iC-WJ, iC-WJZ

LASER DIODE DRIVER

Rev C1, Page 4/12

ELECTRICAL CHARACTERISTICS

Operating Conditions: VCC = 5 V ±10 %, RSET = 2.7...27 kΩ,

iC-WJ: I(AMD) = 50...500 µA, iC-WJZ: I(AMD) = 0.15...1.5 mA, Tj = -25...125 °C, unless otherwise noted.

Item

Symbol

Parameter

Conditions

Tj

Fig.

Unit

No.

°C

Min.

Typ.

Max.

Total Device

001

VCC

Permissible Supply Voltage

Range

4.5

5.5

V

002

Iav(VCC)

Supply Current in VCC (average

value)

Iav(KLD) = 100 mA,

f(IN) = 200 kHz ±20 %

15

mA

003

tp(IN-KLD) Delay Time Pulse Edge V(IN) to

I(KLD)

IN(hi ↔ lo), V(50 %) : I(50 %)

135

ns

004

Vc()lo

Clamp Voltage lo at VCC, IN,

AMD, KLD, CI, CWD, ISET

I() = -2 mA, other pins open

-1.5

-0.3

V

005

Vc()hi

Clamp Voltage hi at IN, AMD,

KLD, GND, CI, CWD, ISET

Vc()hi = V() − VCC; I() = 2 mA,

other pins open

0.3

1.5

V

Driver

101

Vs(KLD)

Saturation Voltage at KLD

IN = hi, I(KLD) = 200 mA

1.3

V

102

I0(KLD)

Leakage Current in KLD

IN = lo, V(KLD) = VCC

10

µA

103

I(KLD)

Current in KLD

IN = hi, I(AMD) = 0

-25

225

250

mA

27

250

mA

70

250

mA

125

250

mA

104

V(AMD)

Voltage at AMD

iC-WJ: I(AMD) = 500 µA

0.5

1.5

V

iC-WJZ: I(AMD) = 1.5 mA

0.4

1.5

V

105

tr

Current Rise Time in KLD

Imax(KLD) = 20...250 mA,

Ip(): 10 → 90 %

100

ns

106

tf

Current Fall Time in KLD

Imax(KLD) = 20...250 mA,

Ip(): 90 % → 10 %

100

ns

107

CR1()

Current Ratio I(AMD) / I(ISET)

I(CI) = 0, closed control loop;

iC-WJ

0.8

1

1.2

iC-WJZ

2.4

3

3.6

108

CR2()

Current Ratio I(AMD) / I(CI)

V(CI) = 1...3.5 V, ISET open;

iC-WJ

0.9

1

1.1

iC-WJZ

2.7

3

3.3

Input IN

201

Vt()hi

Threshold hi

1.60

2.40

V

-25

1.84

V

27

1.87

V

70

1.88

V

125

1.91

V

202

Vt()lo

Threshold lo

1.50

2.20

V

-25

1.76

V

27

1.78

V

70

1.79

V

125

1.81

V

203

Vt()hys

Hysteresis

10

190

mV

-25

80

mV

27

90

mV

70

90

mV

125

100

mV

204

Rin

Pull-Down Resistor

V(IN) = -0.3...VCC + 0.3 V

4

16

kΩ

205

V0()

Open-loop Voltage

I(IN) = 0

0.1

V

206

Vtwd()

Threshold for Watchdog

-25

2.4

3.2

V

27

2.0

2.8

V

70

1.5

2.3

V

125

1.0

1.8

V

Reference und Thermal Shutdown

301

V(ISET)

Voltage at ISET

1.17

1.28

V

27

1.22

V

302

CR()

Current Ratio I(CI) / I(ISET)

V(CI) = 1...3.5 V, I(AMD) = 0

0.9

1

1.1