TD220/221
Gate Driver with VReg and Two Point Regulator
DATASHEET s s s s s s 60mA/120mA MIN GATE DRIVE TWO POINT REGULA...
TD220/221
Gate Driver with VReg and Two Point
Regulator
DATASHEET s s s s s s 60mA/120mA MIN GATE DRIVE TWO POINT
REGULATOR FOR SWITCHING CHARGE PUMP SUPPLY 3.3V OR 5V VOLTAGE
REGULATOR LOW STARTUP CURRENT UVLO PROTECTION 2kV ESD PROTECTION
D SO8 (Plastic MicroPackage)
Package Reference
DESCRIPTION
TD220 is a solution for micro-controller based offline applications. TD220 includes a two point
regulator for power supply generation, a 3.3V (TD220) or 5V (TD221) linear
regulator for the microcontroller supply, and a MOSFET driver.
PIN CONNECTIONS (top view)
APPLICATIONS
s µC-BASED OFF-LINE APPLICATIONS
ORDER CODE
Part Number
TD220I TD221I
Temperature Range
-25, +125°C -25, +125°C
Package D
VCC VOUT NC IN
1 2 3 4
8 7 6 5
VCAP VSUP GND GATE
Note: D = Small Outline Package (SO) - also available in Tape & Reel (DT)
May 2003
Revision B
1/8
TD220/221 1 BLOCK DIAGRAM
Block Diagram
VCC
Vreg
22V
VCAP
UVLO
D1 D2
VOUT
D3
VSUP
Q1
NC IN
75k
13V
TPR
GND GATE
Pin Description
Name VCC VOUT IN GATE GND VSUP VCAP Pin Number
1 2 4 5 6 7 8
Type
Power supply Analog output Digital input Analog output Power supply Power supply Power supply
Function
Supply capacitor and startup resistor +3.3V (TD220) or +5V (TD221) voltage
regulator Input signal for gate drive Gate drive output Signal ground Charge pump input Capacitor for charge pump
2/8
Absolute Maximum Rating 2 ABSOLUTE MAXIMUM RATING
Parameter
DC Supply Voltage (Icc<5mA) Voltage on GATE and VCAP pins Voltage on IN ...
