Document
Datasheet
IS-1715ARH, IS-1715AEH
Radiation Hardened Complementary Switch FET Drivers
The radiation hardened IS-1715ARH and IS-1715AEH are high speed, high current, complementary power FET drivers designed for use in synchronous rectification circuits. Soft switching transitions for the two output waveforms can be managed by setting the independently programmable delays. Alternatively, the delay pins can be configured for zero-voltage sensing to allow for precise switching control.
The IS-1715ARH and IS-1715AEH have a single input, which is PWM and TTL compatible, and can run at frequencies up to 1MHz. The AUX output switches immediately at the rising edge of the INPUT, but waits for the T2 delay before responding to the falling edge. A logic low on the enable pin (ENBL) places both outputs into an active-low mode, and an Undervoltage Lockout (UVLO) function is set at 9V (maximum).
These devices are constructed with the dielectrically isolated Rad Hard Silicon Gate (RSG) process and are immune to Single Event Latch-Up (SEL). They have been specifically designed to provide highly reliable performance in harsh radiation environments.
Applications
• Synchronous rectification in power supplies
VCC
VCC PWM PWM
Controller
GND
IS-1715 INPUT VCC
T1 PWR
T2 ENBL
AUX GND
GND
RT1 RT2
Figure 1. IS-1715 Typical Application Diagram
Delay (ns)
Features
• Electrically screened to SMD #5962-00521 • QML qualified per MIL-PRF-38535 requirements • Radiation environment
○ Gamma dose 3x105rad(Si) ○ Latch-up immune • PWR output current (source and sink): 3A (peak) • AUX output current (source and sink): 3A (peak) • Low operating supply current: 6mA (max) • Wide programmable delay range: 100ns to 600ns • Configurable for zero-voltage switching • Switching frequency to 1MHz • Both outputs active-low in Sleep mode • 9V (maximum) UVLO
Related Literature
For a full list of related documents, visit our website: • IS-1715ARH, IS-1715AEH device pages
600 VCC = 10V
500
T1 T1
T1
125 °C 25 °C -55 °C
400
300
200
100
0 0
125 °C 25 °C T2 T2
-55 °C T2
10 20 30 40 50 60 70 80 90 100
RT (kΩ)
Figure 2. T1 Delay, T2 Delay vs RT vs Temperature
FN4875 Rev.3.00 Aug.16.19
Page 1 of 12
IS-1715ARH, IS-1715AEH
1. Overview
1.1 Functional Block Diagram
INPUT
InputESD
IN OUT
EN
VIN IDEL
Out
VARDELFALL
VIN IDEL
Out
VARDELFALL
3V_REF EN VOUT
T1 InputESD T2 InputESD
EN IDOFF
IOFF
IDON
ION
VREF
VARDELBIAS
ENABLE
InputESD
IN
OUT
UVDET UV
Note: VCC and VSS (GND) connections not shown.
Figure 3. Functional Block Diagram
1. Overview
IN Driver Out
PWR
IN Driver Out
AUX
FN4875 Rev.3.00 Aug.16.19
Page 2 of 12
IS-1715ARH, IS-1715AEH
1. Overview
1.2 Ordering Information
Ordering SMD Number (Note 1)
Part Number (Note 2)
Temp. Range
Package
(°C) (RoHS Compliant)
Pkg. Dwg. #
5962F0052101VXC
IS9-1715ARH-Q
-55 to +125 16 Ld Flatpack
K16.A
5962F0052101QXC
IS9-1715ARH-8
-55 to +125 16 Ld Flatpack
K16.A
5962R0052101TXC
IS9-1715ARH-T
-55 to +125 16 Ld Flatpack
K16.A
5962F0052101V9A
IS0-1715ARH-Q
-55 to +125 Die
N/A
N/A
IS0-1715ARH/SAMPLE (Note 3)
-55 to +125 Die
N/A
N/A
IS9-1715ARH/PROTO (Note 3)
-55 to +125 16 Ld Flatpack
K16.A
5962F0052103VXC
IS9-1715AEH-Q
-55 to +125 16 Ld Flatpack
K16.A
5962F0052103V9A
IS0-1715AEH-Q
-55 to +125 Die
N/A
Notes: 1. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed must be used when ordering.
2. These Pb-free Hermetic packaged products employ 100% Au plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations.
3. The /PROTO and /SAMPLE are not rated or certified for Total Ionizing Dose (TID) or Single Event Effect (SEE) immunity. These parts are intended for engineering evaluation purposes only. The /PROTO parts meet the electrical limits and conditions across the temperature range specified in the DLA SMD and are in the same form and fit as the qualified device. The /SAMPLE die is capable of meeting the electrical limits and conditions specified in the DLA SMD at +25°C only. The /SAMPLE is a die and does not receive 100% screening across the temperature range to the DLA SMD electrical limits. These part types do not come with a certificate of conformance because there is no radiation assurance testing and they are not DLA qualified devices.
1.3 Pin Configuration
IS-1715ARH, IS-1715AEH Flatpack (CDFP4-F16) Top View
NC VCC PWR VSS VSS AUX NC NC
1 16 2 15 3 14 4 13 5 12 6 11 7 10 89
ENBL T1 INPUT VSS VSS T2 VCC NC
1.4 Pin Description
Pin Number 1, 7, 8, 9 2, 10 3
4, 5, 12,13 6
11
Pin Name NC VCC PWR
VSS AUX
T2
Description
No connection.
Chip positive supply (10V to 18V).
Output. PWR switches immediately (neglecting propagation delay) at INPUT’s falling edge but is delayed after the rising edge by the value of the resistance on T1. PWR is capable of sinking and sou.