Functional Description
HSS101
is a high voltage high side switch for switching ohmic, inductive and capacitive loads.
The circuit includes current limiting, short current detection, gate voltage limiting, levelshifters and a short detection timing circuit.
A small leakage current flows through the power transistor in the off state (ON = low).
An internal 20k-resistor between OUT and VSSA discharges capacitive loads.
The short current and the delay time are adjusted by the reference current IB1u.
The cell requires a single high voltage supply and a normal 5V digital supply and two bias currents.
|
|
Key Features
- HV Power Supply: VDDH = 10...30V
- LV Power Supply: VDDA = 5V
- 100mA Drive Capability
- Input Voltage CMOS level
- Internal Overcurrent Limiting Circuitry
- Delayed Short Circuit Detection Display
- Internal Protection Circuitry for Overvoltages by Inductive Loads
| Height: | 920 | µm |
| Width: | 610 | µm |
| Area: | 560 000 | µm² |
|
Pin List
| Pin | Description | Capacitance |
|---|
| ON | Signal Input (CMOS levels) | 0.01 pF |
| IB1u | Bias Sink Current | - |
| IQ10u | Reference Sink Current | - |
| OUT | Output | - |
| SHRT | Short Condition Output (CMOS) | - |
| VDDH | HV Power Supply | - |
| VDDA | LV Power Supply | - |
| VSSA | Negative Supply | - |
|
Electrical Parameters
(IB1u = 1µA, IQ10u = 10µA)
| Parameter |
Symbol |
Min |
Typ |
Max |
Unit |
| Power Supply Range |
VDDH |
10 |
|
30 |
V |
|
Digital supply
|
VDDA
|
4.5
|
5.0
|
5.5
|
V
|
| Temperature Range |
Temp |
-40 |
25 |
85 |
°C |
|
DC output current
|
Ion
|
|
|
100
|
mA
|
|
Output current @ 3.5V Output Drop Voltage
|
Ions
|
120
|
200
|
350
|
mA
|
| Output Drop Voltage @ 100mA Load Current |
Von |
|
1.2 |
2.0 |
V |
|
Rise and fall time
|
tR , tF
|
|
|
5
|
µs
|
| Delay time |
tD |
|
|
5 |
µs |
| Capacitive load |
CL |
|
|
100 |
nF |
| Inductive load |
LL |
|
|
20 |
H |
| Short detection time |
tSC |
25 |
55 |
100 |
µs |
| Discharge resistor |
RDC |
10 |
20 |
50 |
kOhm |
|
Leakage current (OFF state)
|
Ioff
|
|
|
1
|
µA
|
