ADM1070ART datasheet(2/16 Pages) AD

2 / 16 page

REV. 0

–2–

ADM1070–SPECIFICATIONS

Parameter

Min

Typ

Max

Unit

Test Conditions

BOARD SUPPLY

(not connected directly to device)

Maximum Voltage Range

–200

–48

–20

Limited by Voltage Capability of

External Components

Typical Operating Voltage Range

–77

–48

–36

RDROP = 16 k

Ω, R1/R2 = 40*

VIN PIN––SHUNT REGULATOR

Operating Supply Voltage Range, VSS

11.5

12.3

ISS = 1.5 mA to 4.25 mA

Quiescent Supply Current, ISS

0.4

0.85

1.3

VSS = 11.5 V

Maximum Shunt Supply Voltage, VSS

12.5

ISS = 20 mA

Undervoltage Lockout, VLKO

8.5

10.5

UV/OV PIN––UNDERVOLTAGE AND

OVERVOLTAGE DETECTION

Undervoltage Falling Threshold, VUVF

0.81

0.86

0.91

Undervoltage Rising Threshold, VUVR

0.86

0.91

0.96

Undervoltage Hysteresis, VUVH

Overvoltage Falling Threshold, VOVF

1.85

1.93

2.01

Overvoltage Rising Threshold, VOVR

1.89

1.97

2.05

Overvoltage Hysteresis VOVH

–45

Power-On Reset Delay, tPOR

1.10

1.70

2.30

TIMER Pin Tied to VEE

(VUVR < UV/OV < VOVF)

0.90

1.21

1.51

CTIMER = 470 pF

(VUVR < UV/OV < VOVF)

Voltage Fault Filter Time (UV/OV Out of

Voltage Window), tFLT

1.10

1.70

2.30

TIMER Pin Tied to VEE

(VUVR < UV/OV < VOVF)

0.90

1.21

1.51

CTIMER = 470 pF

(VUVR < UV/OV < VOVF)*

Input Current, IVMON

1.0

µA

GATE PIN––FET DRIVER

Maximum Gate Voltage, VGMAX

IGATE = –1

µA

Minimum Gate Voltage, VGMIN

050

IGATE = 1

µA

Pull-Up Current, IGUP

–20

–40

–55

µAV

GATE = 0 V to 9 V, VSENSE = 0

Pull-Down Current, IGDP

VGATE = VSS

Hold-off Impedance, RGOFF

VGATE < 2 V, VSS > 11 V

VGATE < 2 V, VSS > 2 V

SENSE PIN––CURRENT SENSE

Analog Current Limit Voltage (Rising),VLIM

100

110

IGATE = 0

µA to –15 µA

Circuit Breaker Limit Voltage (Rising)

100

Circuit Breaker Limit Voltage (Rising)

–12

(With Respect to VLIM), VLIMITON

Circuit Breaker Limit Voltage (Falling)

–21

(With Respect to VLIM), VLIMITOFF

Fast Current Limit Voltage

107

126

145

Fast Current Limit Voltage

(With Respect to VLIM)

Control Loop Transconductance,

1.5

2.75

µA/mV IGATE < 30 µA, TA = 25°C

(dIGATE/dVSENSE)

Maximum Current Limit On Time, tLIMITON

TIMER Pin Tied to VEE

(VUVR < UV/OV < VOVF)

7.4

9.9

12.4

CTIMER = 470 pF

(VUVR < UV/OV < VOVF)*

Current Limit PWM Off Time

320

450

580

TIMER Pin Tied to VEE

(VUVR < UV/OV < VOVF)*

240

320

400

CTIMER = 470 pF

(VUVR < UV/OV < VOVF)*

Current Limit PWM Duty Cycle

(Typical Only)

Number of Consecutive PWM Retry Cycles

(Typical Only)

(VDD = 0 V, VEE = –48 V, RDROP = 16 k , TA = –40 C to +85 C, unless other-

wise noted.)

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